Neutron fluence testing of large dimension electrical components at cryogenic temperatures has traditionally been performed at fast burst reactors. A new facility, using Californium-252 (252Cf) as a neutron radiation source, was designed and built at the IRT Corporate Headquarters in San Diego. This paper discusses the physical properties of the californium isotope, describes the facility and its test capabilities, and presents the results of the 1 MeV calibration as well as IR and visible sensor testing.
Robert Braasch, Robert Braasch,
"Sensor Radiation Testing With Californium-252 Neutrons", Proc. SPIE 1108, Test and Evaluation of Infrared Detectors and Arrays, (25 September 1989); doi: 10.1117/12.960701; https://doi.org/10.1117/12.960701