D3 Apparatus

Publications

Peer reviewed publications
148. Characteristics of Nanoflare Heating in a Coronal Bright Point
M. Hahn, B. Ho, and D. W. Savin,
Astrophys. J. 936, 113 (2022).
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147. Evidence for Parametric Decay Instability in the Lower Solar Atmosphere
M. Hahn, X. Fu, and D. W. Savin,
Astrophys. J. 933, 52 (2022).
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146. The Influence of Surface Binding Energy on Sputtering in Models of the Sodium Exosphere of Mercury
R. M. Killen, L. S. Morrissey, M. H. Burger, R. J. Vervack Jr., O. J. Tucker and D. W. Savin
Planet. Sci. J. 3, 139 (2022).
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145. Laser cooling scheme for the carbon dimer (12C2)
N. Bigagli, D. W. Savin, and S. Will
Phys. Rev. A Lett. 105, L051301 (2022).
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144. Laser Probing of the Rotational Cooling of Molecular Ions by Electron Collisions
Á. Kálosi, M. Grieser, R. von Hahn, U. Hechtfischer, C. Krantz, H. Kreckel, D. Müll, D. Paul, D. W. Savin, P. Wilhelm, A. Wolf, and O. Novotný
Phys. Rev. Lett. 128, 183402 (2022).
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143. Branching ratio for O + H3+ forming OH+ + H2 and H2O+ + H
P.-M. Hillenbrand, N. de Ruette, X. Urbain, and D. W. Savin
Astrophys. J. 927, 47 (2022).
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142. Solar Wind Ion Sputtering of Sodium from Silicates Using Molecular Dynamics Calculations of Surface Binding Energies
L. S. Morrissey, O. J. Tucker, R. M. Killen, S. Nakhla, and D. W. Savin,
Astrophys. J. Lett. 925, L6 (2022).
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141. Ion Energy Distribution in an Electron Beam Ion Trap Inferred from Simulations of the Trapped Ion Cloud
M. Hahn, T. Arthanayaka, P. Beiersdorfer, G. V. Brown, and D. W. Savin,
Phys. Rev. E 105, 015204 (2022).
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140. Sputtering of Surfaces by Ion Irradiation: A Comparison of Molecular Dynamics and Binary Collision Approximation Models to Laboratory Measurements
L. S. Morrissey, O. J. Tucker, R. M. Killen, S. Nakhla, and D. W. Savin,
J. Appl. Phys. 130, 013302 (2021).
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139. Effects of Density Fluctuations on Alfvén Wave Turbulence in a Coronal Hole
M. Asgari-Targhi, A. Asgari-Targhi, M. Hahn, and D. W. Savin,
Astrophys. J. 911, 63 (2021).
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138. Physical Characteristics of Unstructured Coronal Clouds
M. Asgari-Targhi, L. Golub, M. Hahn, N. Karna, and D. W. Savin,
Astrophys. J. 910, 113 (2021).
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137. Dynamics of the isotope exchange reaction of D with H3+, H2D+, and D2H+
K. P. Bowen, P.-M. Hillenbrand, J. Liévin, D. W. Savin and X. Urbain
J. Chem. Phys 154, 084307 (2021).
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136. Near L-Edge Single and Multiple Photoionization of Doubly Charged Iron Ions
S. Schippers, R. Beerwerth, S. Bari, T. Buhr, K. Holste, A. L. D. Kilcoyne, A. Perry-Sassmannhausen, R. A. Phaneuf, S. Reinwardt, D. W. Savin K. Schubert, S. Fritzsche, M. Martins, and A. Müller
Astrophys. J. 908, 52 (2021).
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135. Experimental study of the proton-transfer reaction C + H2+ → CH+ + H and its isotopic variant (D2+)
P.-M. Hillenbrand, K. P. Bowen, F. Dayou, K. A. Miller, N. de Ruette, X. Urbain, and D. W. Savin
Phys. Chem. Chem. Phys. 22, 27364 (2020).
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134. Acceptance-angle effects on the charge transfer and energy-loss cross sections for collisions of C4+ with atomic hydrogen
R. Cabrera-Trujillo, H. Bruhns, and D. W. Savin
Phys. Rev. A 101, 052708 (2020).
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133. Laboratory Calibration of Fe XII-XIV Line-Intensity Ratios for Electron Density Diagnostics
T. Arthanayaka, P. Beiersdorfer, G. V. Brown, M.-F. Gu, M. Hahn, N. Hell, T. Lockard, and D. W. Savin,
Astrophys. J. 890, 77 (2020).
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132. Near L-Edge Single and Multiple Photoionization of Triply Charged Iron Ions
R. Beerwerth, T. Buhr, A. Perry-Sassmannhausen, S. O. Stock, S. Bari, K. Holste, A. L. David Kilcoyne, S. Reinwardt, S. Ricz, D. W. Savin, K. Schuert, M. Martins, A. Müller, S. Fritzsche, and S. Schippers,
Astrophys. J. 887, 189 (2019).
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131. Measured Reduction in Alfvén Wave Energy Propagating through Longitudinal Gradients Scaled to Match Solar Coronal Holes
S. Bose, T. Carter, M. Hahn, S. Tripathi, S. Vincena, and D. W. Savin,
Astrophys. J. 882, 183 (2019).
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130. Roadmap on photonic, electronic and atomic collision physics: II. Electron and antimatter interactions
S. Schippers, E. Sokell, F. Aumayr, H. Sadeghpour, K. Ueda, I. Bray, K. Bartschat, A. Murray, J. Tennyson, A. Dorn, M. Yamazaki, M. Takahashi, N. Mason, O. Novotný, A. Wolf, L. Sanche, M. Centurion, Y. Yamazaki, G. Laricchia, C. M. Surko, J. Sullivan, G. Gribakin, D. W. Savin, Y. Ralchenko, R. Hoekstra, and G. O'Sullivan
J. Phys. B 52, 171002 (2019).
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129. Experimental and Theoretical Studies of the Isotope Exchange Reaction D + H3+ → H2D+ + H
P.-M. Hillenbrand, K. P. Bowen, J. Liévin, X. Urbain, and D. W. Savin
Astrophys. J. 877, 38 (2019).
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128. Electron-impact Ionization of Atomic Nitrogen
C. J. Ciccarino and D. W. Savin
J. Thermophys. Heat Transfer 33, 154 (2019).
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127. Measurements of the Effective Electron Density in an Electron Beam Ion Trap using Extreme Ultraviolet Spectra and Optical Imaging
T. P. Arthanayaka, P. Beiersdorfer, G. V. Brown, M. Hahn, N. Hell, T. E. Lockard, and D. W. Savin
Rev. Sci. Instrum 89, 10E119 (2018).
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126. Dissociative Recombination Measurements of Chloronium Ions (D2Cl+) using an Ion Storage Ring
O. Novotný, H. Buhr, W. Geppert, M. Grieser, M. Hamberg, C. Krantz, M. B. Mendes, A. Petrignani, R. Repnow, D. W. Savin, D. Schwalm, J. Stützel, and A. Wolf
Astrophys. J. 862, 166 (2018).
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125. Density Fluctuations in a Coronal Hole
M. Hahn, E. D'Huys, and D. W. Savin
Astrophys. J. 860, 34 (2018).
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124. Spectroscopic Measurements of the Ion Velocity Distribution at the Base of the Fast Solar Wind
N. L. S. Jeffrey, M. Hahn, D. W. Savin, and L. Fletcher
Astrophys. J. Lett. 855, L13 (2018).
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123. Electron-Impact Multiple Ionization Cross Section for Atoms and Ions of Helium through Zinc
M. Hahn, A. Müller, and D. W. Savin
Astrophys. J. 850, 122 (2017).
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122. Near L-Edge Single and Multiple Photoionization of Singly Charged Iron Ions
S. Schippers, M. Martins, R. Beerwerth, S. Bari, K. Holste, K. Schubert, J. Viefhaus, D. W. Savin, S. Fritzsche, and A. Müller
Astrophys. J. 849, 5 (2017).
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121. On the Energetics of the HCO+ + C → CH+ + CO Reaction and Some Astrochemical Implications
D. W. Savin, R. G. Bhaskar, S. Vissapragada, and X. Urbain
Astrophys. J. 844, 154 (2017).
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120. Recommended Thermal Rate Coefficients for the C + H3+ Reaction and Some Astrochemical Implications
S. Vissapragada, C. F. Buzard, K. A. Miller, A. P. O'Connor, N. de Ruette, X. Urbain, and D. W. Savin
Astrophys. J. 832, 31 (2016).
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119. Inferring the Coronal Density Irregularity from EUV Spectra
M. Hahn and D. W. Savin
Astrophys. J. 829, 42 (2016).
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118. Recombination of W19+ ions with electrons: Absolute rate coefficients from a storage-ring experiment and from theoretical calculations
N. R. Badnell, K. Spruck, C. Krantz, O. Novotný, A. Becker, D. Bernhardt, M. Grieser, M. Hahn, R. Repnow, D. W. Savin, A. Wolf, A. Müller, and S. Schippers
Phys. Rev. A 93, 052703 (2016).
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117. Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe8+
M. Hahn, A. Becker, D. Bernhard, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, M. Pindzola, R. Repnow, S. Schippers, K. Spruck, A. Wolf, and D. W. Savin
J. Phys. B 49, 084006 (2016).
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116. Absolute rate coefficients for photorecombination of berylliumlike and boronlike silicon ions
D. Bernhardt, A. Becker, C. Brandau, M. Grieser, M. Hahn, C. Krantz, M. Lestinsky, O. Novotný, R. Repnow, D. W. Savin, K. Spruck, A. Wolf, A. Müller, and S. Schippers
J. Phys. B 49, 074004 (2016).
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115. Innershell Photoionization Studies of Neutral Atomic Nitrogen
W. C. Stolte, V. Jonauskas, D. W. Lindle, M. M. Sant'Anna, and D. W. Savin
Astrophys. J. 818, 149 (2016).
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114. Merged-beams Reaction Studies of O + H3+
N. de Ruette, K. A. Miller, A. P. O'Connor, X. Urbain, C. F. Buzard, S. Vissapragada, and D. W. Savin
Astrophys. J. 816, 31 (2016).
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113. Generation of neutral atomic beams utilizing photodetachment by high power diode laser stacks
A. O'Connor, F. Grussie, X. Urbain, D. W. Savin, K. A. Miller, N. de Ruette, J. Stützel, T. Koenning, H. Bruhns, and H. Kreckel
Rev. Sci. Instrum. 86, 113806 (2015).
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112. Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe7+
M. Hahn, A. Becker, D. Bernhardt, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, K. Spruck, A. Wolf, and D. W. Savin
Astrophys. J. 813, 16 (2015).
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111. Cryogenic micro-calorimeters for mass spectrometric identification of neutral molecules and molecular fragments
O. Novotný, S. Allgeier, C. Enss, A. Fleischmann, L. Gamer, D. Hengstler, S. Kempf, C. Krantz, A. Pabinger, C. Pies, D. W. Savin, D. Schwalm, and A. Wolf
J. Appl. Phys. 118, 104503 (2015).
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110. A Simple Method for Modeling Collision Processes in Plasmas with a Kappa Energy Distribution
M. Hahn and D. W. Savin
Astrophys. J. 809, 178 (2015).
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109. Reaction Studies of Neutral Atomic C with H3+ using a Merged-beams Apparatus
A. P. O'Connor, X. Urbain, J. Stützel, K. A. Miller, N. de Ruette, M. Garrido, and D. W. Savin
Astrophys. J. Suppl. Ser. 219, 6 (2015).
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108. Relative Abundance Measurements in Plumes and Interplumes
C. Guennou, M. Hahn and D. W. Savin
Astrophys. J. 807, 145 (2015).
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107. Influence of Electron-Impact Multiple Ionization on Equilibrium and Dynamic Charge State Distributions: A Case Study Using Iron
M. Hahn and D. W. Savin
Astrophys. J. 800, 68 (2015).
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106. Evidence for Wave Heating of the Quiet-Sun Corona
M. Hahn and D. W. Savin
Astrophys. J. 795, 111 (2014).
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105. Recombination of W18+ ions with electrons: Absolute rate coefficients from a storage-ring experiment and from theoretical calculations
K. Spruck, N. R. Badnell, C. Krantz, O. Novotný, A. Becker, D. Bernhardt, M. Grieser, M. Hahn, R. Repnow, D. W. Savin, A. Wolf, A. Müller, and S. Schippers
Phys. Rev. A 90, 032715 (2014).
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104. Dissociative recombination measurements of NH+ using an ion storage ring
O. Novotný, M. Berg, D. Bing, H. Buhr, W. Geppert, M. Grieser, F. Grussie, C. Krantz, M.B. Mendes, C. Nordhorn, R. Repnow, D. Schwalm, B. Yang, A. Wolf, and D. W. Savin
Astrophys. J., 792, 132 (2014).
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103. Absolute rate coeffcients for photorecombination and electron-impact ionization of magnesium-like iron ions from measurements at a heavy-ion storage ring
D. Bernhardt, A. Becker, M. Grieser, M. Hahn, C. Krantz, M. Lestinsky, O. Novotný, R. Repnow, D. W. Savin, K. Spruck, A. Wolf, A. Müller, and S. Schippers
Phys. Rev. A 90, 012702 (2014).
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102. Electron-Ion Recombination of Fe12+ forming Fe11+: Laboratory Measurements and Theoretical Calculations
M. Hahn, N. R. Badnell, M. Grieser, C. Krantz, M. Lestinsky, A. Müuller, O. Novotný, R. Repnow, S. Schippers, A. Wolf, and D. W. Savin
Astrophys. J. 788, 46 (2014).
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101. Electron-Impact Ionization of P-like Ions forming Si-like Ions
D.H. Kwon and D. W. Savin
Astrophys. J. 784, 13 (2014).
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100. Exploring high-energy doubly excited states of NH by dissociative recombination of NH+
B. Yang, O. Novotný, C. Krantz, H. Buhr, M. Mendes, C. Nordhorn, W. D. Geppert, M. Grieser, R. Repnow, M. Berg, D. Bing, C. Domesle, F. Grussie, D. W. Savin., D. Schwalm, X. Cai and A. Wolf
J. Phys. B 47, 035201 (2014).
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99. Dissociative Recombination Measurements of HCl+ using an Ion Storage Ring
O. Novotný, A. Becker, H. Buhr, C. Domesle, W. Geppert, M. Grieser, C. Krantz, H. Kreckel, R. Repnow, D. Schwalm, K. Spruck, J. Stützel, B. Yang, A. Wolf, and D. W. Savin
Astrophys. J. 777, 54 (2013).
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Erratum: Dissociative Recombination Measurements of HCl+ using an Ion Storage Ring
O. Novotný, A. Becker, H. Buhr, C. Domesle, W. Geppert, M. Grieser, C. Krantz, H. Kreckel, R. Repnow, D. Schwalm, K. Spruck, J. Stützel, B. Yang, A. Wolf, and D. W. Savin
Astrophys. J. 795, 176 (2014).
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Erratum: Dissociative Recombination Measurements of HCl+ using an Ion Storage Ring
O. Novotný, A. Becker, H. Buhr, C. Domesle, W. Geppert, M. Grieser, C. Krantz, H. Kreckel, R. Repnow, D. Schwalm, K. Spruck, J. Stützel, B. Yang, A. Wolf, and D. W. Savin
Astrophys. J. 810, 169 (2015).
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98. Observational Quantification of the Energy Dissipated by Alfvén Waves in a Polar Coronal Hole: Evidence that Waves Drive the Fast Solar Wind
M. Hahn and D. W. Savin
Astrophys. J. 776, 78 (2013).
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97. Storage Ring Cross Section Measurements for Electron Impact Single and Double Ionization of Fe13+ and Single Ionization of Fe16+ and Fe17+
M. Hahn, A. Becker, D. Bernhardt, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, K. Spruck, A. Wolf, and D. W. Savin
Astrophys. J. 767, 47 (2013).
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96. Measurements of Anisotropic Ion Temperatures, Non-Thermal Velocities, and Doppler Shifts in a Coronal Hole
M. Hahn and D. W. Savin
Astrophys. J. 763, 106 (2013).
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95. Storage Ring Cross Section Measurements for Electron Impact Single and Double Ionization of Fe9+ and Single Ionization of Fe10+
M. Hahn, A. Becker, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, K. Spruck, A. Wolf, and D. W. Savin
Astrophys. J. 760, 80 (2012).
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94. Isotope effect for associative detachment: H(D)- + H(D) → H2(D2) + e-
K. A. Miller, H. Bruhns, M. Čížek, J. Eliášek, R. Cabrera-Trujillo, H. Kreckel, A. P. O'Connor, X. Urbain, and D. W. Savin
Phys. Rev. A 86, 032714 (2012).
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93. Electron-Ion Recombination of Mg6+ forming Mg5+ and of Mg7+ forming Mg6+: Laboratory Measurements and Theoretical Calculations
M. Lestinsky, N. R. Badnell, D. Bernhardt, D. Bing, M. Grieser, M. Hahn, J. Hoffman, B. Jordan-Thaden, C. Krantz, O. Novotný, D. A. Orlov, R. Rempow, A. Shornikov, A. Müller, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 758, 40 (2012).
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92. Theoretical electron-impact-ionization cross section for Fe11+ forming Fe12+
D.H. Kwon and D. W. Savin
Phys. Rev. A. 86, 022701 (2012).
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91. Electron-Ion Recombination of Fe XII forming Fe XI: Laboratory Measurements and Theoretical Calculations
O. Novotný, N. R. Badnell, D. Bernhard, M. Grieser, M. Hahn, C. Krantz, M. Lestinsky, A. Müller, R. Repnow, S. Schippers, A. Wolf, and D. W. Savin
Astrophys. J. 753, 57 (2012).
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90. Evidence of Wave Damping at Low Heights in a Polar Coronal Hole
M. Hahn, E. Landi, and D. W. Savin
Astrophys. J. 753, 36 (2012).
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89. Storage ring at HIE-ISOLDE: Technical design report
M. Grieser et al.
Eur. Phys. J. Special Topics 207, 1 (2012).
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88. Electron Impact Ionization Measurements using Hyperfine-Assisted State Preparation of Ground-State Beryllium-like Sulfur
M. Hahn, D. Bernhardt, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, A. Wolf, and D. W. Savin
Phys. Rev. A 85, 042713 (2012).
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87. The impact of recent advances in laboratory astrophysics on our understanding of the cosmos
D. W. Savin, N. S. Brickhouse, J. J. Cowan, R. P. Drake, S. R. Federman, G. J. Ferland, A. Frank, M. S. Gudipati, W. C. Haxton, E. Herbst, S. Profumo, F. Salama, L. M. Ziurys and E. G. Zweibel
Rep. Prog. Phys. 75, 036901 (2012).
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86. Storage-ring measurement of the hyperfine-induced 2s2p 3P0 → 2s2 1S0 transition rate in beryllium-like sulfur
S. Schippers, D. Bernhardt, A. Müller, M. Lestinsky, M. Hahn, O. Novotný, D. W. Savin, M. Grieser, C. Krantz, R. Repnow, and A. Wolf
Phys. Rev. A 85, 013513 (2012).
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85. Associative detachment of H- + H → H2 + e-
K. Miller, H. Bruhns, J. Eliášek, M. Čížek, H. Kreckel, X. Urbain, and D. W. Savin
Phys. Rev. A 84, 052709 (2011).
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84. Differential Emission Measure Analysis of a Polar Coronal Hole During the Solar Minimum in 2007
M. Hahn, E. Landi, and D. W. Savin
Astrophys. J. 736, 101 (2011).
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83. Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe12+ Forming Fe13+ and Fe14+
M. Hahn, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 735, 105 (2011).
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Addendum: Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe12+ Forming Fe13+ and Fe14+
M. Hahn, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 761, 79 (2012).
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82. Effects of Configuration Interaction for Dielectronic Recombination of Na-like Ions Forming Mg-like Ions
D.-H. Kwon and D. W. Savin
Astrophys. J. 734, 2 (2011).
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81. Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe11+ Forming Fe12+ and Fe13+
M. Hahn, D. Bernhardt, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 729, 76 (2011).
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Addendum: Storage Ring Cross Section Measurements for Electron Impact Ionization of Fe11+ Forming Fe12+ and Fe13+
M. Hahn, D. Bernhardt, M. Grieser, C. Krantz, M. Lestinsky, A. Müller, O. Novotný, R. Repnow, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 761, 78 (2012).
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80. Recombination of Au20+ at low electron-ion collision energies
S. Schippers, D. Bernhardt, M. Grieser, M. Hahn, C. Krantz, M. Lestinsky, O. Novotný, R. Repnow, D. W. Savin, A. Wolf, and A. Müller
15th International Conference on the Physics of Highly Charged Ions
Phys. Scr. T144, 014039 (2011).
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79. Dielectronic recombination of xenonlike tungsten ions
S. Schippers, D. Bernhardt, A. Müller, C. Krantz, M. Grieser, R. Repnow, A. Wolf, M. Lestinsky, M. Hahn, O. Novotný, and D. W. Savin
Phys. Rev. A 83, 012711 (2011).
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78. Fe15+ dielectronic recombination and the effects of configuration interaction between resonances with different captured electron principal quantum number
D.-H. Kwon and D. W. Savin
Phys. Rev. A 83, 012701 (2011).
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77. Dielectronic Recombinatioon Data for Astrophysical Applications: Plasma Rate-Coefficients for Feq+ (q=7-10,13-22) and Ni25+ Ions from Storage-Ring Experiments
S. Schippers, M. Lestinsky, A. Müller, D. W. Savin, E. W. Schmidt, and A. Wolf
Int. Rev. At. Mol. Phys. 1, 109 (2010).
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76. Properties of a Polar Coronal Hole During the Solar Minimum in 2007
M. Hahn, P. Bryans, E. Landi, M. P. Miralles and D. W. Savin
Astrophys. J. 725, 774 (2010).
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75. Absolute energy-resolved measurements of the H- + H → H2 + e- associative detachment reaction using a merged-beam apparatus
H. Bruhns, H. Kreckel, K. A. Miller, X. Urbain, and D. W. Savin
Phys. Rev. A 82, 042708 (2010).
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74. Experimental Results for H2 Formation from H- and H and Implications for First Star Formation
H. Kreckel, H. Bruhns, M. Čížek, S. C. O. Glover, K. A. Miller, X. Urbain, and D. W. Savin
Sci. 329, 69 (2010).
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73. A simple double-focusing electrostatic ion beam deflector
H. Kreckel, H. Bruhns, K. A. Miller, E. Wåhlin, A. Davis, S. Höckh, and D. W. Savin
Rev. Sci. Instrum. 81, 063304 (2010).
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72. Storage Ring Measurement of Electron Impact Ionization for Mg7+ Forming Mg8+
M. Hahn, D. Bernhardt, M. Lestinsky, A. Müller, O. Novotný, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 712, 1166 (2010).
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Addendum: Storage Ring Measurement of Electron Impact Ionization for Mg7+ Forming Mg8+
M. Hahn, D. Bernhardt, M. Lestinsky, A. Müller, O. Novotný, S. Schippers, A. Wolf and D. W. Savin
Astrophys. J. 761, 77 (2012).
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71. A novel merged beams apparatus to study anion-neutral reactions
H. Bruhns, H. Kreckel, K. Miller, M. Lestinsky, B. Seredyuk, W. Mitthumsiri, B. L. Schmitt, M. Schnell, X. Urbain, M. L. Rappaport, C. C. Havener, and D. W. Savin
Rev. Sci. Instrum. 81, 013112 (2010).
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70. Deriving the coronal hole electron temperature: electron density dependent ionization / recombination considerations
J. Doyle, S. Chapman, P. Bryans, D. Pérez-Suárez, A. Singh, H. Summers, D. W. Savin
Res. Astron. Astrophys. 10, 91 (2010).
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69. Electron-ion Recombination of Fe X forming Fe IX and of Fe XI forming Fe X: Laboratory Measurements and Theoretical Calculations
M. Lestinsky, N. R. Badnell, D. Bernhardt, M. Grieser, J. Hoffmann, D. V. Lukić, A. Müller, D. A. Orlov, R. Repnow, D. W. Savin, E. W. Schmidt, M. Schnell, S. Schippers, A. Wolf and D. Yu
Astrophysic. J. 698, 648 (2009).
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68. Is H3+ cooling ever important in primordial gas?
S. C. O. Glover and D. W. Savin
Mon. Not. R. Astron. Soc. 393, 911 (2009).
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67. Molecular Cloud Chemistry and the Importance of Dielectronic Recombination
P. Bryans, H. Kreckel, E. Roueff, V. Wakelam and D. W. Savin
Astrophys. J. 694, 289 (2009).
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66. A New Approach to Analyzing Solar Coronal Spectra and Updated Collisional Ionization Equilibrium Calculations. II. Updated Ionization Rate Coefficients
P. Bryans, E. Landi, and D. W. Savin
Astrophys. J. 691 1540 (2009).
Table 2 (complete, ascii format)
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65. Electron-ion recombination for Fe VIII forming Fe VII and Fe IX forming Fe VIII: measurements and theory
E. W. Schmidt, S. Schippers, D. Bernhardt, A. Müller, J. Hoffmann, M. Lestinsky, D. A. Orlov, A. Wolf, D. V. Lukić, D. W. Savin, and N. R. Badnell
Astron. Astrophys. 492, 265 (2008).
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64. Low-energy charge transfer for collisions of Si3+ with atomic hydrogen
H. Bruhns, H. Kreckel, D. W. Savin, D. G. Seely and C. C. Havener
Phys. Rev. A 77, 064702 (2008).
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63. Electron-Impact Ionization of Be-like C III, N IV, and O V
M. Fogle, E. M. Bahati, M. E. Bannister, C. R. Vane, S. D. Loch, M. S. Pindzola, C. P. Ballance, R. D. Thomas, V. Zhaunerchyk, P. Bryans, W. Mitthumsiri, and D. W. Savin
Astrophys. J. Suppl. Ser. 175, 543 (2008).
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62. Orbital sensitivity in Mg2+ dielectronic recombination calculations
J. Fu, T. W. Gorczyca, D. Nikolic, N. R. Badnell, D. W. Savin, and M. F. Gu
Phys. Rev. A 77, 032713 (2008).
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61. Rotating Dual-Wire Beam Profile Monitor Optimized for use in Merged-Beams Experiments
D. G. Seely, H. Bruhns, D. W. Savin, T. J. Kvale, E. Galutschek, H. Aliabadi and C. C. Havener
Nucl. Instrum. Methods A 585, 69 (2008).
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60. Analog and Digital Simulations of Maxwellian Plasmas for Astrophysics
D. W. Savin, N. R. Badnell, P. Beiersdorfer, B. R. Beck, G. V. Brown, P. Bryans, T. W. Gorczcya, M. F. Gu, S. M. Kahn, J. M. Laming, D. A. Liedahl, W. Mitthumsiri, J. H. Scofield, and K. L. Wong
Can. J. Phys 86, 209 (2008).
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59. Electron-Ion Recombination of Si IV forming Si III: Storage-Ring Measurement and Multiconfiguation Dirac-Fock Calculations
E. W. Schmidt, D. Bernhardt, A. Müller, S. Schippers, S. Fritzsche, J. Hoffmann, A. S. Jaroshevich, C. Krantz, M. Lestinsky, D. A. Orlov, A. Wolf, D. Lukić, and D. W. Savin
Phys. Rev. A 76, 032717 (2007).
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58. Dielectronic Recombination of Fe XV forming Fe XIV: Laboratory Measurements and Theoretical Calculations
D. Lukić, M. Schnell, D. W. Savin, C. Brandau, E. W. Schmidt, S. Böhm, A. Müller, S. Schippers, M. Lestinsky, F. Sprenger, A. Wolf, Z. Altun, and N. R. Badnell
Astrophys. J. 664, 1244 (2007).
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57. Low-energy electron capture by Ne2+ ions from H(D)
B. Seredyuk, H. Bruhns, D. W. Savin, D. Seely, H. Aliabadi, E. Galutschek, and C. C. Havener
Phys. Rev. A 75, 054701 (2007).
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56. Collisional Ionization Equilibrium for Optically Thin Plasmas. I. Updated Recombination Rate Coefficients for Bare through Sodium-like Ions
P. Bryans, N. R. Badnell, T. W. Gorczyca, J. M. Laming, W. Mitthumsiri, and D. W. Savin
Astrophys. J. Suppl. Ser. 167, 343 (2006).
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55. H3+ Cooling in Primordial Gas
S. Glover and D. W. Savin
Phil. Trans. R. Soc. London A 364, 3107 (2006).
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54. Strong LSJ Dependence of Fluorescence Yields: Breakdown of the Configuration-Average Approximation
M. F. Hasoğlu, T. W. Gorczyca, K. T. Korista, S. T. Manson, N. R. Badnell, and D. W. Savin
Astrophys. J. Lett. 649, L149 (2006).
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53. Dielectronic Recombination of Fe XXIII Forming Fe XXII: Laboratory Measurements and Theoretical Calculations
D. W. Savin, G. Gwinner, M. Grieser, R. Repnow, M. Schnell, D. Schwalm, A. Wolf, and S.-G. Zhou, S. Kieslich , A. Müller, S. Schippers, J. Colgan, S. D. Loch, N. R. Badnell, M. H. Chen, and M. F. Gu
Astrophys. J. 642, 1275 (2006).
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52. Electron-Ion Recombination Measurements Motivated by AGN X-Ray Absorption Features: Fe XIV Forming Fe XIII
E. W. Schmidt, S. Schippers, A. Müller, M. Lestinsky, F. Sprenger, M. Grieser, R. Repnow, A. Wolf, C. Brandau, D. Lukić, M. Schnell, and D. W. Savin
Astrophys. J. Lett. 641, L157 (2006).
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51. Cosmological Implications of the Uncertainty in H- Destruction Rate Coefficients
S. C. Glover, D. W. Savin, and A.-K. Jappsen
Astrophys. J. 640, 553 (2006).
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50. Importance of Configuration Interaction for Accurate Atomic Data: Fluorescence Yields of K-Shell Vacancy, Lithium-like Ions
T. W. Gorczyca, I. Dumitriu, M. F. Hasoğlu, K. T Korista, N. R. Badnell, D. W. Savin, and S. T. Manson
Astrophys. J. Lett. 638, L121 (2006).
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49. Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: IX. The Fluorine Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, J. Fu, K. T. Korista, N. R. Badnell, and D. W. Savin
Astron. Astrophys. 447, 379 (2006).
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48. Electron Capture by Ne4+ Ions from Atomic Hydrogen
C. C. Havener, R. Rejoub, C. R. Vane, H. F. Krause, D. W. Savin, M. Schnell, J. G. Wang, and P. C. Stancil
Phys. Rev. A 71, 034702 (2005).
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47. Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: VII. The Neon Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, K. T. Korista, N. R. Badnell, and D. W. Savin
Astron. Astrophys. 426, 699 (2004).
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46. Low Energy Electron Capture by Ne3+ Ions on Atomic Hydrogen
R. Rejoub, M. E. Bannister, C. C. Havener, D. W. Savin, C. Verzania, J. G. Wang, and P. C. Stancil
Phys. Rev. A 69, 052704 (2004).
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45. Rate Coefficient for H+ + H2 → H + H2+ Charge Transfer and Some Cosmological Implications
D. W. Savin, P. S. Krstić, Z. Haiman, and P. C. Stancil
Astrophys. J. Lett. 606, L167 (2004).
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Erratum: Rate Coefficient for H+ + H2 → H + H2+ Charge Transfer and Some Cosmological Implications
D. W. Savin, P. S. Krstić, Z. Haiman, and P. C. Stancil
Astrophys. J. Lett. 607, L147 (2004).
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44. Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: IV. The Carbon Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, K. T. Korista, N. R. Badnell, and D. W. Savin
Astron. Astrophys. 417, 1173 (2004).
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Erratum: Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: IV. The Carbon Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, K. T. Korista, J. Fu, N. R. Badnell, W. Mitthumsiri and D. W. Savin
Astron. Astrophys. 440, 1203 (2005).
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43. Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: II. The Oxygen Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, K. T. Korista, N. R. Badnell, and D. W. Savin
Astron. Astrophys. 412, 587 (2003).
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Erratum: Dielectronic Recombination Data for Dynamic Finite-Density Plasmas: II. The Oxygen Isoelectronic Sequence
O. Zatsarinny, T. W. Gorczyca, K. T. Korista, J. Fu, N. R. Badnell, W. Mitthumsiri, and D. W. Savin
Astron. Astrophys. 438, 743 (2005).
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42. Electron Capture by Ne2+ Ions on Atomic Hydrogen
A. Mroczkowski, D. W. Savin, R. Rejoub, P. S. Krstić, and C. C. Havener
Phys. Rev. A 68, 032721 (2003).
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41. High Resolution Mass Spectrometry using a Linear Electrostatic Ion Beam Trap
D. Zajfman, Y. Rudich, I. Sagi, D. Strasser, D. W. Savin, S. Goldberg, M. Rappaport, and O. Heber
Int. J. Mass Spectrom. 229, 55 (2003).
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40. Dielectronic Recombination of Fe XXI and Fe XXII via N = 2 → N' = 2 Core Excitations
D. W. Savin, S. M. Kahn, G. Gwinner, M. Grieser, R. Repnow, G. Saathoff, D. Schwalm, A. Wolf, A. Müller, S. Schippers, P. A. Závodszky, M. H. Chen, T. W. Gorczyca, O. Zatsarinny, and M. F. Gu
Astrophys. J. Suppl. Ser. 147, 421 (2003).
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39. Assessment of the Fluorescence and Auger DataBase Used in Plasma Modeling
T. W. Gorczyca, C. N. Kodituwakku, K. T. Korista, O. Zatsarinny, N. R. Badnell, E. Behar, M. H. Chen, and D. W. Savin
Astrophys. J. 592, 636 (2003).
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38. X-Ray Spectroscopy of Astrophysical Plasmas
S. M. Kahn, E. Behar, A. Kinkhabwala, and D. W. Savin
Phil. Trans. R. Soc. Lond. A 360, 1923 (2002).
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37. Dielectronic Recombination of Fe XIX Forming Fe XVIII: Laboratory Measurements and Theoretical Calculations
D. W. Savin, S. M. Kahn, J. Linkemann, A. A. Saghiri, M. Schmitt, M. Grieser, R. Repnow, D. Schwalm, A. Wolf, T. Bartsch, A. Müller, S. Schippers, M. H. Chen, N. R. Badnell, T. W. Gorczyca, and O. Zatsarinny
Astrophys. J. 576, 1098 (2002).
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36. Shortcomings of the R-Matrix Method for Treating Dielectronic Recombination Rate Coefficients
T. W. Gorczyca, N. R. Badnell, and D. W. Savin,
Phys. Rev. A 65, 062707 (2002).
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35. Dielectronic Recombination (via 2 → 2 Core Excitations) and Radiative Recombination onto Fe XX: Laboratory Measurements and Theoretical Calculations
D. W. Savin, E. Behar, S. M. Kahn, G. Gwinner, A. A. Saghiri, M. Schmitt, M. Grieser, R. Repnow, D. Schwalm, A. Wolf, T. Bartsch, A. Müller, S. Schippers, N. R. Badnell, M. H. Chen, and T. W. Gorczyca
Astrophys. J. Suppl. Ser. 138, 337 (2002).
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34. Uncertainties in Dielectronic Recombination Rates: Effects on Solar and Stellar Upper Atmosphere Abundance Determinations
D. W. Savin, and J. M. Laming
Astrophys. J. 566, 1166 (2002).
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33. Rate Coefficients for D(1s) + H+ ↔ D+ + H(1s) Charge Transfer and Some Astrophysical Implications
D. W. Savin
Astrophys. J. 566, 599 (2002).
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32. Laboratory Measurements of Iron L Shell Emission: 3 → 2 Transitions of Fe XXI - XXIV Between 10.5 A and 12.5 A
M. F. Gu, S. M. Kahn, D. W. Savin, E. Behar, P. Beiersdorfer, G. V. Brown, D. A. Liedahl, and K. J. Reed
Astrophys. J. 563, 462 (2001).
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31. Dielectronic Recombination of L-Shell Ions
G. Gwinner, D. W. Savin, D. Schwalm, A. Wolf, S. Schippers, A. Müller, N. R. Badnell, and M. H. Chen
Phys. Scr. T92, 319 (2001).
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30. Current Research with Highly Charged Ions in EBIT and SuperEBIT
P. Beiersdorfer, J. A. Britten, G. V. Brown, H. Chen, E. J. Clothiaux, J. Cottam, E. Förster, M.-F. Gu, C. L. Harris, S. M. Kahn, J. K. Lepson, P. A. Neill, D. W. Savin, H. Schulte-Schreppig, L. Schweikhard, A. J. Smith, E. Träbert, J. Tschischgale, S. B. Utter, and K. L. Wong
Phys. Scr. T92, 268 (2001).
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29. Measurements of Atomic Parameters of Highly Charged Ions for Interpreting Astrophysical Spectra
G. V. Brown, P. Beiersdorfer, K. R. Boyce, K. C. Cendreau, M. F. Gu, J. Cygax, S. M. Kahn, R. Kelley, F. S. Porter, D. W. Savin, and S. B. Utter
Phys. Scr. T92, 130 (2001).
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28. Interstellar X-Ray Absorption Spectroscopy of Oxygen, Neon, and Iron with the Chandra LETGS Spectrum of X0614+091
F. Paerels, A. C. Brinkman, R. L. J. van der Meer, J. S. Kaastra, E. Kuulkers, A. J. F. den Boggende, P. Predehl, J. J. Drake, S. M. Kahn, D. W. Savin, and B. M. McLaughlin
Astrophys. J. 546, 338 (2001).
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27. Simulating a Maxwellian Plasma using an Electron Beam Ion Trap
D. W. Savin, P. Beiersdorfer, S. M. Kahn, B. R. Beck, G. V. Brown, M. F. Gu, D. A. Liedahl, and J. H. Scofield
Rev. Sci. Instrum. 71, 3362 (2000).
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26. Experimental M1 Transition Rates of Coronal Lines from Ar X, Ar XIV, and Ar XV
E. Träbert, S. B. Utter, P. Beiersdorfer, G. V. Brown, H. Chen, C. Harris, P. Neill, D. W. Savin, and A. J. Smith
Astrophys. J. 541, 506 (2000).
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25. Ionization Balance, Chemical Abundances and the Metagalactic Radiation Field at High Redshift
D. W. Savin
Astrophys. J. 533, 106 (2000).
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24. Recombination in Electron Coolers
A. Wolf, G. Gwinner, J. Linkemann, A. A. Saghiri, M. Schmitt, D. Schwalm, M. Grieser, M. Beutelspacher, T. Bartsch, C. Brandau, A. Hoffknecht, A. Müller, S. Schippers, O. Uwira, and D. W. Savin
Nucl. Instrum. Methods A 441, 183 (2000).
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23. Effects of Electron Spiraling on the Anisotropy and Polarization of Photon Emission from an Electron Beam Ion Trap
M. F. Gu, D. W. Savin, and P. Beiersdorfer
J. Phys. B 32, 5371 (1999).
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22. Experimentally Derived Dielectronic Recombination Rate Coefficients for Helium-like C V and Hydrogenic O VIII
D. W. Savin
Astrophys. J. 523, 855 (1999).
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21. Improved Electron-Beam Ion-Trap Lifetime Measurement of the Ne8+(1s2s 3S1) Level
E. Träbert, P. Beiersdorfer, G. V. Brown, A. J. Smith, S. B. Utter, M. F. Gu, and D. W. Savin
Phys. Rev. A 60, 2034 (1999).
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20. Absolute Cross Section for Si2+(3s2 1S → 3s3p 1P) Electron-Impact Excitation
D. B. Reisenfeld, L. D. Gardner, P. H. Janzen, D. W. Savin, and J. L. Kohl
Phys. Rev. A 60, 1153 (1999).
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19. Dielectronic Recombination in Photoionized Gas. II. Laboratory Measurements for Fe XVIII and Fe XIX
D. W. Savin, S. M. Kahn, J. Linkemann, A. A. Saghiri, M. Schmitt, M. Grieser, R. Repnow, D. Schwalm, A. Wolf, T. Bartsch, C. Hoffknecht, A. Müller, S. Schippers, M. H. Chen, and N. R. Badnell
Astrophys. J. Suppl. Ser. 123, 687 (1999).
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18. Reevaluation of Experiments and New Theoretical Calculations for Electron-Impact Excitation of C3+
P. H. Janzen, L. D. Gardner, D. B. Reisenfeld, D. W. Savin, and J. L. Kohl
Phys. Rev. A 59, 4821 (1999).
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17. Laboratory Measurements of Fe XXIV Line Emission: 3 to 2 Transitions Near Excitation Threshold
M. F. Gu, S. M. Kahn, D. W. Savin, P. Beiersdorfer, G. V. Brown, D. A. Liedahl, K. J. Reed, C. P. Bhalla, and S. R. Grabbe
Astrophys. J. 518, 1002 (1999).
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16. Simulations of a Maxwellian Plasma using an Electron Beam Ion Trap
D. W. Savin, B. Beck, P. Beiersdorfer, S. M. Kahn, G. V. Brown, M. F. Gu, D. A. Liedahl, and J. H. Scofield
Phys. Scr. T80B, 312 (1999).
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15. Laboratory Measurements of Resonant Contributions to Fe XXIV Line Emission
M. F. Gu, P. Beiersdorfer, G. V. Brown, S. M. Kahn, D. A. Liedahl, K. J. Reed, and D. W. Savin
Phys. Scr. T80B, 310 (1999).
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14. Dielectronic Recombination for Boronlike Ions
M. H. Chen, K. J. Reed, D. S. Guo, and D. W. Savin
Phys. Rev. A 58, 4539 (1998).
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13. Recent Dielectronic Recombination Experiments
A. Müller, T. Bartsch, C. Brandau, A. Hoffknecht, H. Knopp, S. Schippers, O. Uwira, J. Linkemann, A. A. Saghiri, M. Schmitt, D. Schwalm, A. Wolf, F. Bosch, B. Franzke, C. Kozhuharov, P. H. Mokler, F. Nolden, M. Steck, T. Stöhlker, T. Winkler, H. Danared, D. R. DeWitt, H. Gao, H. Lebius, R. Schuch, W. Spies, W. Zong, G. H. Dunn, W. G. Graham, J. A. Tanis, J. Doerfert, D. W. Savin, and Z. Stachura
Hyperf. Int. 114, 229 (1998).
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12. Precision Measurement of the Lifetime of the 1s2s 3S1 Metastable Level in Heliumlike O6+
J. Crespo López-Urrutia, P. Beiersdorfer, D. W. Savin, and K. Widmann
Phys. Rev. A 58, 238 (1998).
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11. Dielectronic Recombination in Photoionized Gas: the Importance of Fine-Structure Core Excitations
D. W. Savin, T. Bartsch, M .H. Chen, S. M. Kahn, D. A. Liedahl, J. Linkemann, A. Müller, S. Schippers, M. Schmitt, D. Schwalm, A. Wolf
Astrophys. J. Lett. 489, L115 (1997).
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10. Recombination Measurements at Low Energies with Au49+,50+,51+ at the TSR
O. Uwira, A. Müller, J. Linkemann, T. Bartsch, C. Brandau, M. Schmitt, A. Wolf, D. Schwalm, R. Schuch, W. Zong, H. Leibius, W. G. Graham, J. Doerfert, and D. W. Savin
Hyperf. Int. 108, 149 (1997).
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9. A High-Resolution Transmission-Type X-Ray Spectrometer Designed for Observation of the K-alpha Transitions of Highly Charged High-Z Ions
K. Widmann, P. Beiersdorfer, G. V. Brown, J. Crespo López-Urrutia, V. Decaux, and D. W. Savin
Rev. Sci. Instrum. 68, 1087 (1997).
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8. Overview of the current spectroscopy effort on the Livermore electron beam ion traps
P. Beiersdorfer, G. V. Brown, J. Crespo López-Urrutia, V. Decaux, S. R. Elliott, D. W. Savin, A. J. Smith, G. S. Stefanelli, K. Widmann, K. L. Wong
Hyperf. Int. 99, 203 (1996).
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7. Laboratory Measurements of Fe XXIV L-Shell Line Emission
D. W. Savin, P. Beiersdorfer, J. Crespo López-Urrutia, V. Decaux, E. M. Gullikson, S. M. Kahn, D. A. Liedahl, K. J. Reed, and K. Widmann
Astrophys. J. Lett. 470, L73 (1996).
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6. Direct Observation of the Spontaneous Emission of the Hyperfine Transition F = 4 to F = 3 in Ground State Hydrogenlike 165Ho66+ in an Electron Beam Ion Trap
J. R. Crespo López-Urrutia, P. Beiersdorfer, D. W. Savin, and K. Widmann
Phys. Rev. Lett. 77, 826 (1996).
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5. Measurement and Interpretation of the Polarization of the X-Ray Line Emission of Heliumlike Fe XXV Excited by an Electron Beam
P. Beiersdorfer, D. A. Vogel, K. Reed, V. Decaux, J. Scofield, K. Widmann, G. Hölzer, E. Förster, O. Wehrhan, D. W. Savin, and L. Schweikhard
Phys. Rev. A 53, 3974 (1996).
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4. Absolute Measurement of Dielectronic Recombination for C3+ in a Known External Field
D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl
Phys. Rev. A 53, 280 (1996).
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3. Absolute Rate Coefficient for C3+(2s-2p) Electron Impact Excitation
D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl
Phys. Rev. A 51, 2162 (1995).
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2. In Situ Absolute Calibration of a Channel Electron Multiplier for Detection of Positive Ions
D. W. Savin, L. D. Gardner, D. B. Reisenfeld, A. R. Young, and J. L. Kohl
Rev. Sci. Instrum. 66, 67 (1995).
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1. Measurement of C3+ Dielectronic Recombination in a Known External Field
A. R. Young, L. D. Gardner, D. W. Savin, G. P. Lafyatis, A. Chutjian, S. Bliman, and J. L. Kohl
Phys. Rev. A 49, 357 (1994).
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0. Ask Dr. Dan, Ph.D
D. W. Savin
J. Irreproducible Results 31(5), 6 (1986).
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