radiation sensing and measurement systems. An effort has been undertaken to develop a
flexible shielding system compatible with a variety of sources (beta, X-ray, gamma, and
neutron) that can be highly characterized using conventional radiation detection and
measurement systems. Sources available for use in this system include americium-beryllium
(AmBe), plutonium-beryllium (PuBe), strontium-90 (Sr-90), californium-252 (Cf-252), krypton …