I worked on the design, construction, and calibration of the Reflection Grating Spectrometer for XMM-Newton

I was affiliated with the team that built the Low Energy Transmission Grating Spectrometer for the

Chandra X-ray Observatory

(skipping several Observatory studies here; wide-field microcalorimeter-based spectroscopic imagers)

I was a member of the Science Definition Team for the International X-ray Observatory IXO

I was a member of the Science and Technology Definition Team for the Lynx X-ray Observatory

I was a member of the Science Working Group for the

Hitomi (Astro-H) X-ray observatory

I am a Guest Scientist on the

XRISM X-ray observatory