Irradiation of LWIR detectors with X-rays generated near the sample

A novel approach for testing the effects of ionizing radiation on long-wavelength infrared (LWIR) detectors operating in a thermally shielded environment is described. An electron beam is introduced into a cryogenic chamber and used to generate low-energy X-rays in a cold target foil proximate to the detector. Applications of the method include studies of ionization-induced noise and accumulated dose. The advantages of the approach include economy of apparatus, very high potential dose rates, ease of modulation, and safety of operation.<
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