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A1 Capsule Type
Alpha Particle Standards – Type A-1
The type A-1 source is permanently fixed in an aluminum holder 1” diameter x 0.125” high (25.4 mm x 3.18 mm).
The active diameter is 0.197” (5.0 mm).
All alpha standards are offered as spectral grade sources up to the activity and active diameters listed unless otherwise noted. All electroplated alpha standards are manufactured to a tolerance of +/-30% of the nominal activity. All AF type sources are delicate surface sources; the active surface of the source must not be wipe tested or touched.
Nuclide | Product code | Activity range | Remark |
---|---|---|---|
Am-241 | AF-241-A1 | >185 Bq – 37 kBq | |
Cf-252 | AF-252-A1 | 185 Bq – 37 kBq | |
Cm-244 | AF-244-A1 | 185 Bq – 37 kBq | |
Gd-148 | AF-148-A1 | 185 Bq – 3,7 kBq | |
Np-237 | AF-237-A1 | 185 Bq | maximum activity, Not supplied as spectroscopy grade sources. |
Po-210 | AF-210-A1 | 185 Bq – 37 kBq | |
Pu-238 | AF-238P-A1 | 185 Bq – 37 kBq | |
Pu-239 | AF-239-A1 | 185 Bq – 370 Bq | |
Ra-226 | AF-226-A1 | 185 Bq – 3,7 kBq | Not necessarily in equilibrium with daughters at time of shipment.Ra-226 will leak Rn-222 gas. |
Th-228 | AF-228-A1 | 185 Bq – 18,5 kBq | Not necessarily in equilibrium with daughters at time of shipment.Th-228 will leak Rn-220 gas. |
Th-230 | AF-230-A1 | 185 Bq – 3,7 kBq | |
Th-232 | AF-232-A1 | Not available | |
U-235 | AF-235-A1 | 15 Bq | maximum activity, Not supplied as spectroscopy grade sources.Not necessarily in equilibrium with daughters at time of shipment. |
U-238 (Nat) | AF-238(Nat)-A1 | 1,85 Bq | maximum activity, Not supplied as spectroscopy grade sources.Not necessarily in equilibrium with daughters at time of shipment. |
U-238D | AF-238D-A1 | 1,18 Bq | maximum activity, Not supplied as spectroscopy grade sources.Not necessarily in equilibrium with daughters at time of shipment. |