Performance and durability of HgI2 X-ray detectors for space missions

Details Performance and durability of HgI2 X-ray detectors for space missions Performance and durability of HgI2 X-ray detectors for space missions

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989itns...36..841i&link_type=abstract

(IEEE, DOE, NIST, et al., 1988 Nuclear Science Symposium, Orlando, FL, Nov. 9-11, 1988) IEEE Transactions on Nuclear Science (IS

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19

Mercury Compounds, Radiation Detectors, Spacecraft Instruments, X Rays, Durability, Iodides, Protons, Radiation Damage

Scientific paper

Considerable progress has been achieved recently in HgI2 detector fabrication technology and amplification electronics. An energy resolution of 198 eV (full width at half maximum) has been obtained for the Mn k-alpha line of 5.9 keV in a practical X-ray probe without the use of cryogenic cooling. Detectors prepared with Parylene-C encapsulation have demonstrated perfect reliability in two-year tests under high vacuum and temperature and bias cycling. Other HgI2 detectors have been used to demonstrate proton-radiation-damage resistance to levels of 10 to the 12 protons/sq cm at 10.7 MeV. It is concluded that HgI2 detectors are suitable for the ordinary requirements of energy dispersive detectors in X-ray spectroscopy systems.

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