One of the most common radionuclide neutron sources used for calibration of detectors is
252Cf. However, these sources are not isotopically pure and also contain the neutron …

One of the most common radionuclide neutron sources used for the calibration of detectors
is 252Cf. However, these sources also contain 250Cf, which is present in the material from …

There is a need to find a replacement for the 252 Cf sources currently used in Standards-
based performance testing of neutron instrumentation. This is a result of its relatively short …

Data from manganese bath measurements of the neutron emission rates from commercial
252 Cf sources over a period of 40 years have been used to derive an accurate value for the …

Californium-252 is used as a neutron calibration source for passive neutron correlation
counting. Source age and isotopic information are needed to make decay corrections to the …

A new electronic method has been developed that requires about 10 min to assay 252Cf
sources between 1 μg and 50 mg. The assay is made by placing the 252Cf source in the …

This paper describes the development and experimental standardization of neutron fields
simply arranged for detector calibrations used for radiation control and environmental …

A large manganese sulfate bath is employed at the National Institute of Standards and
Technology (NIST) to calibrate isotopic neutron sources relative to the national standard …

A Cf-252 neutron source is widely used for testing and calibrating neutron multiplicity
counters. General equations for calculating the time-dependent strength and multiplicity of …

Sealed 252Cf sources in the microCurie to milliCurie range are routinely used in industry
and research. At present, no reliable analytical method is available for precise determination …