Standard Californium-252 Sources: Model 100 Series

The Model 100 series of Cf-252 neutron sources are doubly-encapsulated sources which employ a Model 10 series source as the primary encapsulation. Model 100 series sources have an outside diameter of 0.370/0.371 inches and are available in two lengths, both of which are available with or without a 10-32 threaded stud on one end. The longer length version with the stud is equivalent to the Savannah River SR-CF-100 series capsules. Outer capsule material may be either type 304L stainless steel or Zircalloy-2. Closure is by TIG welding.

  • Double encapsulated, employing a Model 10 series source as the primary encapsulation.
  • The outer capsule material is either 304L stainless steel or Zircaloy-2.
  • All sources NIST traceable

Thirty-two version of the standard length source available in various combinations of inner and outer capsule materials, orientations and with or without the threaded stud. Upon request, custom configurations are also available. All Model 100 series are certified by the USDOT as Special Form, and all have been approved for licensing purposes by the USNRC for general uses.

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Nominal dimensions for the Frontier Technology Corporation Model 100 and Model 100S sources are shown below:

Dimensions Close Model 100 Model 100S
Outside diameter 0.370/0.371 inch 0.370/0.371 inch
9.398/9.423mm 9.398/9.423mm
Outside length w/stud 1.48 inches 0.97 inch
37.59mm 24.6mm
Outside length w/o stud 1.28 inches 0.77 inch
32.5mm 19.55mm
Inside diameter 0.234/0.235 inch 0.234/0.235 inch
5.953/5.982mm 5.953/5.982mm
Inside length 1.02 inches 0.52 inch
30.6mm 13.2mm
Maximum content: 10 milligrams 4 milligrams

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