UCSD High Energy X-ray Timing Experiment magnetic shield design and test results

Details UCSD High Energy X-ray Timing Experiment magnetic shield design and test results UCSD High Energy X-ray Timing Experiment magnetic shield design and test results

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1549..120r&link_type=abstract

In: EUV, X-ray, and gamma-ray instrumentation for astronomy II; Proceedings of the Meeting, San Diego, CA, July 24-26, 1991 (A93

Computer Science

Performance

1

Design Analysis, Magnetic Shielding, Scintillation Counters, X Ray Timing Explorer, Automatic Gain Control, Performance Tests, Photomultiplier Tubes

Scientific paper

Results are reported from an effort to define a passive magnetic field concept for the High Energy X-ray Timing Experiment (HEXTE), in the interest of reducing the detector-gain variations due to 0.5-1.0-sec timescale magnetic field variations. This will allow a sensitivity of the order of 1 percent of the HEXTE background. While aperture modulation and automatic gain control will minimize effects on timescales of tens of seconds and longer, passive magnetic shielding of the photomultiplier tubes will address 1-sec timescale variations due to aperture motions.

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