D3 Apparatus

Publications

Peer reviewed publications
112. Electron-impact Ionization of Atomic Nitrogen
C. Ciccarino and D. W. Savin
In preparation
111. 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. Stüutzel, and A. Wolf
In preparation
110. Electron-Impact Multiple Ionization Cross Section for Atoms and Ions of Helium through Zinc
M. Hahn, A. Müller, and D. W. Savin
Astrophys. J. Suppl. Ser. (submitted).
Abstract Icon
109. 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. (in press).
Abstract Icon
108. 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).
Abstract Icon PDF Icon
107. 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).
Abstract Icon PDF Icon
106. Inferring the Coronal Density Irregularity from EUV Spectra
M. Hahn and D. W. Savin
Astrophys. J. 829, 42 (2016).
Abstract Icon PDF Icon
105. 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).
Abstract Icon PDF Icon
104. 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).
Abstract Icon PDF Icon
103. 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).
Abstract Icon PDF Icon
102. 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).
Abstract Icon PDF Icon
101. 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).
Abstract Icon PDF Icon
100. 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).
Abstract Icon PDF Icon
99. 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).
Abstract Icon PDF Icon
98. 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).
Abstract Icon PDF Icon
97. 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).
Abstract Icon PDF Icon
96. 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).
Abstract Icon PDF Icon
95. Relative Abundance Measurements in Plumes and Interplumes
C. Guennou, M. Hahn and D. W. Savin
Astrophys. J. 807, 145 (2015).
Abstract Icon PDF Icon
94. 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).
Abstract Icon PDF Icon
93. Evidence for Wave Heating of the Quiet-Sun Corona
M. Hahn and D. W. Savin
Astrophys. J. 795, 111 (2014).
Abstract Icon PDF Icon
92. 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).
Abstract Icon PDF Icon
91. 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).
Abstract Icon PDF Icon
90. 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).
Abstract Icon PDF Icon
89. 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).
Abstract Icon PDF Icon
88. Electron-Impact Ionization of P-like Ions forming Si-like Ions
D.H. Kwon and D. W. Savin
Astrophys. J. 784, 13 (2014).
Abstract Icon PDF Icon
87. 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).
Abstract Icon PDF Icon
86. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
85. 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).
Abstract Icon PDF Icon
84. 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).
Abstract Icon PDF Icon
83. 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).
Abstract Icon PDF Icon
82. 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).
Abstract Icon PDF Icon
81. 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).
Abstract Icon PDF Icon
80. 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).
Abstract Icon PDF Icon
79. Theoretical electron-impact-ionization cross section for Fe11+ forming Fe12+
D.H. Kwon and D. W. Savin
Phys. Rev. A. 86, 022701 (2012).
Abstract Icon PDF Icon
78. 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).
Abstract Icon PDF Icon
77. 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).
Abstract Icon PDF Icon
76. Storage ring at HIE-ISOLDE: Technical design report
M. Grieser et al.
Eur. Phys. J. Special Topics 207, 1 (2012).
Abstract Icon PDF Icon
75. 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).
Abstract Icon PDF Icon
74. 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).
Abstract Icon PDF Icon
73. 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).
Abstract Icon PDF Icon
72. 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).
Abstract Icon PDF Icon
71. 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).
Abstract Icon PDF Icon
70. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
69. 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).
Abstract Icon PDF Icon
68. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
67. 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).
Abstract Icon PDF Icon
66. 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).
Abstract Icon PDF Icon
65. 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).
PDF Icon
64. 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).
Abstract Icon PDF Icon
63. 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).
Abstract Icon PDF Icon
62. 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).
Abstract Icon PDF Icon
Full text and link to supporting online material: PDF Icon
61. 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).
Abstract Icon PDF Icon
60. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
59. 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. Havenere, and D. W. Savin
Rev. Sci. Instrum. 81, 013112 (2010).
Abstract Icon PDF Icon
58. 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).
Abstract Icon PDF Icon
57. 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).
Abstract Icon PDF Icon
56. Is H3+ cooling ever important in primordial gas?
S. C. O. Glover and D. W. Savin
Mon. Not. R. Astron. Soc. 393, 911 (2009).
Abstract Icon PDF Icon
Complete tables: PDF Icon
55. 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).
Abstract Icon PDF Icon
54. 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)
Abstract Icon PDF Icon
53. 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).
Abstract Icon PDF Icon
52. 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).
Abstract Icon PDF Icon
51. 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).
Abstract Icon PDF Icon
50. 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).
Abstract Icon PDF Icon
49. 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).
Abstract Icon PDF Icon
48. 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).
Abstract Icon PDF Icon
47. 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).
Abstract Icon PDF Icon
46. 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).
Abstract Icon PDF Icon
45. 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).
Abstract Icon PDF Icon
44. 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).
Abstract Icon PDF Icon
43. 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).
Abstract Icon PDF Icon
42. 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).
Abstract Icon PDF Icon
41. 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).
Abstract Icon PDF Icon
40. 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).
Abstract Icon PDF Icon
39. 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).
Abstract Icon PDF Icon
38. 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).
Abstract Icon PDF Icon
37. 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).
Abstract Icon PDF Icon
36. 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).
Abstract Icon PDF Icon
35. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
34. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
33. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
32. 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).
Abstract Icon PDF Icon
31. 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).
Abstract Icon PDF Icon
30. 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).
Abstract Icon PDF Icon
29. 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).
Abstract Icon PDF Icon
28. 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).
Abstract Icon PDF Icon
27. 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).
Abstract Icon PDF Icon
26. 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).
Abstract Icon PDF Icon
25. 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).
Abstract Icon PDF Icon
24. Rate Coefficients for D(1s) + H+ ↔ D+ + H(1s) Charge Transfer and Some Astrophysical Implications
D. W. Savin
Astrophys. J. 566, 599 (2002).
Abstract Icon PDF Icon
23. 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).
Abstract Icon PDF Icon
22. 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).
Abstract Icon PDF Icon
21. 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).
Abstract Icon PDF Icon
20. 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).
Abstract Icon PDF Icon
19. Ionization Balance, Chemical Abundances and the Metagalactic Radiation Field at High Redshift
D. W. Savin
Astrophys. J. 533, 106 (2000).
Abstract Icon PDF Icon
18. 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).
Abstract Icon PDF Icon
17. Experimentally Derived Dielectronic Recombination Rate Coefficients for Helium-like C V and Hydrogenic O VIII
D. W. Savin
Astrophys. J. 523, 855 (1999).
Abstract Icon PDF Icon
16. 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).
Abstract Icon PDF Icon
15. 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).
Abstract Icon PDF Icon
14. 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).
Abstract Icon PDF Icon
13. 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).
Abstract Icon PDF Icon
12. 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).
Abstract Icon PDF Icon
11. Dielectronic Recombination for Boronlike Ions
M. H. Chen, K. J. Reed, D. S. Guo, and D. W. Savin
Phys. Rev. A 58, 4539 (1998).
Abstract Icon PDF Icon
10. 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).
Abstract Icon PDF Icon
9. 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).
Abstract Icon PDF Icon
8. 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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
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).
Abstract Icon PDF Icon
0. Ask Dr. Dan, Ph.D
D. W. Savin
J. Irreproducible Results 31(5), 6 (1986).
PDF Icon