Design, Construction, and Modeling of a ²⁵²Cf Neutron Irradiator

Table 5

Properties of select irradiator materials.

Material	Density (g/cm^3)	Composition (mass fraction)
Cf2O3 in Pd matrix	12.02	Pd (0.999); Cf2O3 (0.001) with the Cf comprised of ^252Cf (0.79); ^251Cf (0.04); ^250Cf (0.15); ^249Cf (0.02)
Source encapsulation	8.03	Stainless steel 304L (1.0)
Pure polyethylene	0.92	H (0.1437); C (0.8563)
Borated polyethylene	0.95	H (0.116); C (0.612); O (0.222); B (0.050)