ALPHA
Calibration Standards

DISK:

• 0.87" (22mm) Outside Diameter
  
• 1.25" (32mm) Outside Diameter
  
• 1.85" (47mm) Outside Diameter
  

• 4.73" x 4.73" (120mm x 120mm) Square
  

DISK SOURCE

Model#:      Isotope:   Activity:      Dimensions:     Material:

S-Pu-22      239 Pu     1-20 nCi       ~22mm O.D.      SS or Ni
                        37-740 Bq      ~19mm A.D.

S-Am-22      241 Am     1-20 nCi       ~22mm O.D.      SS or Ni
                        37-740 Bq      ~19mm A.D.

S-Th-22      230 Th     1-20 nCi       ~22mm O.D.      SS or Ni
                        37-740 Bq      ~19mm A.D.

S-Ra-22      226 Ra+    0.1-1.0 nCi    ~22mm O.D.      SS
             daughters  3.7-37 Bq      ~19mm A.D.

S-Th-22      230 Am     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-U4-22      234 Th     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Np-22      237 Pu     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Pu8-22     238 Am     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Pu9-22     239 Th     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Am-22      241 Pu     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Cm-22      244 Am     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

S-Cf-22      252 Th     0.1-5.0 nCi    ~22mm O.D.      SS
                        3.7-185 Bq     ~19mm A.D.

Models S-Pu-32-4 and 4a include a 50mm aluminum source holder, aluminum rectangular detector holder, and a four compartment storage container. A retaining ring (included) secures the source to the 50mm holder.Screws secure the source holder assembly to the rectangular detector holder.

Model#:      Isotope:   Activity:        Dimensions:     Material:

S-Am-32      241 Am     1-20 nCi         ~32mm O.D.      SS or Ni
                        37-740 Bq        ~25mm A.D.

S-Th-32      230 Th     1-20 nCi         ~32mm O.D.      SS or Ni
                        37-740 Bq        ~25mm A.D.

S-Pu-32      239 Pu     1-20 nCi         ~32mm O.D.      SS or Ni
                        37-740 Bq        ~25mm A.D.

S-Pu-32-4    239 Pu      0.25--0.5 nCi   ~32mm O.D.      SS/Al or Ni
                         2.5---5.0 nCi   ~25mm A.D.
                        25.0--50.0 nCi
                       250.0-500.0 nCi

S-Pu-32-4a   239 Pu        1 nCi         ~32mm O.D.      SS/Al or Ni
                          10 nCi         ~25mm A.D.
                         100 nCi
                        1000 nCi

ALUMINUM SOURCE AND DETECTOR HOLDERS

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DISK SOURCE

Model#:      Isotope:   Activity:      Dimensions:     Material:

S-Pu-47      239 Pu     0.5-10 nCi     ~47mm O.D.      SS or Ni
                        18.5-370 Bq    ~44mm A.D.

S-Pu-47a     239 Pu     >10-20 nCi     ~47mm O.D.      SS or Ni
                        >370-740 Bq    ~44mm A.D.

S-Am-47      241 Am     1-20 nCi       ~47mm O.D.      SS or Ni
                        37-740 Bq      ~44mm A.D.

S-Th-47      230 Th     1-20 nCi       ~47mm O.D.      SS or Ni
                        37-740 Bq      ~44mm A.D.

SQUARE SOURCE AND HOLDER

Model#:      Isotope:   Activity:      Dimensions:     Material:

S-Th-100     230 Th     5-20 nCi       120x120mm T.A.  Plastic/Al + SS or NI
                        185-740 Bq     100x100mm A.A.

S-U4-100     234/235U   5-20 nCi       120x120mm T.A.  Plastic/Al + SS or NI
                        185-740 Bq     100x100mm A.A.

S-Pu-100     239 Pu     5-20 nCi       120x120mm T.A.  Plastic/Al + SS or NI
                        185-740 Bq     100x100mm A.A.

S-Am-100     241 Am     5-20 nCi       120x120mm T.A.  Plastic/Al + SS or NI
                        185-740 Bq     100x100mm A.A.


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