Radiation environment of the Chandra X-Ray Observatory

Details Radiation environment of the Chandra X-Ray Observatory Radiation environment of the Chandra X-Ray Observatory

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4140...99o&link_type=abstract

Proc. SPIE Vol. 4140, p. 99-110, X-Ray and Gamma-Ray Instrumentation for Astronomy XI, Kathryn A. Flanagan; Oswald H. Siegmund;

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The Chandra X-ray Observatory, the x-ray component of NASA's Great Observatories, provides unprecedented subarcsecond imaging, imaging spectrometry, and high-resolution dispersive spectroscopy of cosmic x-ray sources. During the initial phase of operation, some of the focal-plane charge-coupled devices (CCDs) -- namely, the front-illuminated devices -- experienced an unanticipated increase in charge-transfer inefficiency (CTI). Investigation of this anomaly determined the root cause to be radiation damage by weakly penetrating protons, entering the telescope's aperture and scattered off the mirrors into the focal plane. Subsequent changes in operating procedures have slowed the rate of increase of the CTI of the front- illuminated CCDs to acceptable levels. There has been no measurable degradation of the back-illuminated CCDs.

Affiliated with

Also associated with

No associations

Rating

Radiation environment of the Chandra X-Ray Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Radiation environment of the Chandra X-Ray Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radiation environment of the Chandra X-Ray Observatory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1161254