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Kapton Polymeric Films to Shield X-Ray Detectors in Orbit.
- Source :
-
Journal of Low Temperature Physics . May2012, Vol. 167 Issue 3/4, p232-235. 4p. 1 Diagram, 1 Chart. - Publication Year :
- 2012
-
Abstract
- We are investigating possible technical solutions to minimize the instrumental non X-ray background (NXB) of the X-ray Micro-calorimeter Spectrometer (XMS) for the ATHENA space mission. In the proposed design, XMS will be provided with an anti-coincidence system in order to reject most of the X-ray-like events produced by primary solar and cosmic particles that are expected to populate the L-2 space environment. However, the rejection efficiency of events produced by secondary particles cannot be as good as that of events produced directly by primary particles. Among secondary emitted particles, knock-on electrons have in general a major impact in determining the NXB level of X-ray detectors. For this reason, it may be helpful to adopt some techniques of passive shielding together with the use of the active anti-coincidence. We present preliminary results of a study on polyimide sheets, which could be employed to reduce the fluence of knock-on electrons onto XMS and, more in general, to optimize the design and configuration of X-ray detectors in orbit. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00222291
- Volume :
- 167
- Issue :
- 3/4
- Database :
- Academic Search Index
- Journal :
- Journal of Low Temperature Physics
- Publication Type :
- Academic Journal
- Accession number :
- 73790178
- Full Text :
- https://doi.org/10.1007/s10909-012-0523-9