Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera

Details Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera

Mar 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spie.4851..112j&link_type=abstract

X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy. Edited by Joachim E. Truemper, Harvey D. Tananbaum. Proceedings

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The Chandra X-ray Observatory (CXO) High Resolution Camera (HRC) is a microchannel plate (MCP) based X-ray detector with heritage from similar detectors flown on the Einstein and ROSAT missions. The HRC consists of two detectors in a common housing. Improvements from the previous instruments include: fabricating the MCP from 'low-noise' glass (glass that contains a reduced level of radioactive isotopes) and surrounding the detector housing on five sides with an active coincidence detector. Both of these improvements help to maximize the X-ray signal to background noise ratio. The on-orbit background is dominated by cosmic ray and solar-wind particles. The temporal behavior of the background has two parts: a quiescent level and a flaring component. The quiescent level slowly changes with time and is correlated with the high-energy particle flux as measured by the Electron Proton Helium Instrument (EPHIN), the CXO radiation detector. The flaring component is associated with times of elevated low-energy particle flux, primarily from the Sun. A combination of on-board vetoing and filtering during ground processing provides a substantial rejection of the non-X-ray background. This work was supported by NASA contract NAS8-39073 to the Chandra X-ray Center.

Affiliated with

Also associated with

No associations

Rating

Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera 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 Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of the on-orbit background of the Chandra x-ray observatory high-resolution camera will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1170495