Radiation damage in the Chandra x-ray CCDs

Gregory Y. Prigozhin; Steven E. Kissel; Mark W. Bautz; Catherine Grant; Beverly LaMarr; Richard F. Foster; George R. Ricker Jr.; Gordon P. Garmire

doi:10.1117/12.391612

18 July 2000 Radiation damage in the Chandra x-ray CCDs

Gregory Y. Prigozhin, Steven E. Kissel, Mark W. Bautz, Catherine Grant, Beverly LaMarr, Richard F. Foster, George R. Ricker Jr., Gordon P. Garmire

Author Affiliations +

Proceedings Volume 4012, X-Ray Optics, Instruments, and Missions III; (2000) https://doi.org/10.1117/12.391612
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

Front side illuminated CCDs comprising focal plane of Chandra X-ray telescope have suffered some radiation damage in the beginning of the mission. Measurements of CTI and dark current at different temperatures led us to conclusion that the type of damage is inconsistent with the much studied type of damage created by protons with energies higher than 10 MeV. Intensive ground based investigation showed that irradiation of CCD with low energy protons (about 100 keV) results in the device characteristics very similar to the ones of the flight chips (very low dark current, the shape of the CTI temperature dependence). We were able to reliably determine that only image section of the flight chips was damaged and therefore only fast transfer from image to frame store section was affected. We have developed several techniques in order to determine the parameters of the electron traps introduced into the transfer channel of the irradiated device.

Citation Download Citation

Gregory Y. Prigozhin, Steven E. Kissel, Mark W. Bautz, Catherine Grant, Beverly LaMarr, Richard F. Foster, George R. Ricker Jr., and Gordon P. Garmire "Radiation damage in the Chandra x-ray CCDs", Proc. SPIE 4012, X-Ray Optics, Instruments, and Missions III, (18 July 2000); https://doi.org/10.1117/12.391612

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available