Berkeley Nucleonics offers a wide array of check sources and disk sets for calibration of our Isotope Identification equipment
Overview
|
Isotope |
Atomic Number |
Half-life |
Mass Number |
Decay Mode |
|
Barium 133 (Ba-133) |
56 |
10.551 years |
133 (77 neutrons) |
Electron Capture |
|
Carbon 14 (C-14) |
6 |
5700 years |
14 (8 neutrons) |
Beta |
|
Cadmium 109 (Cd-109) |
48 |
461.9 days |
109 (61 neutrons) |
Electron Capture |
|
Cobalt 57 (Co-57) |
27 |
271.74 days |
57 (30 neutrons) |
Electron Capture |
|
Cobalt 60 (Co-60) |
27 |
5.27 years |
60 (33 neutrons) |
Beta |
|
Cesium 137 (Cs137) |
55 |
30.08 years |
137 (82 neutrons) |
Beta |
|
Europium 152 (Eu-152) |
63 |
13.51 Years |
152 (89 neutrons) |
Electron Capture |
|
Iron 55 (Fe-55) |
26 |
2.744 years |
55 (29 neutrons) |
Electron Capture |
|
Manganese 54 (Mn-54) |
25 |
312.2 days |
54 (29 neutrons) |
Electron Capture |
|
Sodium 22 (Na-22) |
11 |
2.6 years |
22 (11 neutrons) |
Beta |
|
Polonium (Po-210) |
84 |
138.37 days |
210 (126 neutrons) |
Alpha |
|
Strontium (Sr-90) |
38 |
28.79 years |
90 (52 neutrons) |
Beta |
|
Thallium 204 (Tl-204) |
81 |
3.78 years |
204 (123 neutrons) |
Beta |
|
Zinic 65 (Zn-65) |
25 |
243.93 days |
54 (29 neutrons) |
Electron Capture |
The RSS2 source set is used for determining the resolving time of GM counters. It consists of 3 half-disks: 2 contain Tl-204 and 1 is left blank (contains no material).
All RSS2 sources have an uncertainty of ± 20% of the labeled activity.
| RSS2 | (2) Tl-204, 5 μCi (185 kBq), sealed half-disk sources |
| (1) Blank half-disk |
| RSS2EU | (2) Tl-204, 0.25 μCi (9.25 kBq), sealed half-disk sources |
| (1) Blank half-disk |
The RSS3 source set is designed for demonstrating the basic characteristics of radiation. It consists of 3 disk sources: 1 gamma emitter, 1 beta emitter, and 1 alpha emitter.
All RSS3 sources have an uncertainty of ± 20% of the labeled activity.
| RSS3 | (1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter) |
| (1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter) | |
| (1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter) |
| RSS3UN | (1) Co-60, 0.5 μCi (18.5 kBq), sealed disk (1″ diameter) |
| (1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter) | |
| (1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter) |
The RSS5 source set is designed for demonstrating the basic characteristics of radiation. It consists of 5 disk sources: 2 gamma emitters, 2 beta emitters, and 1 alpha emitter.
All RSS5 sources have an uncertainty of ± 20% of the labeled activity.
| RSS5 | (1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter) |
| (1) Cs-137, 5 μCi (185 kBq), sealed disk (1″ diameter) | |
| (1) Tl-204, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter) | |
| (1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter) |
| RSS5EU | (1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter) |
| (1) Cs-137, 0.25 μCi (9.25 kBq), sealed disk (1″ diameter) | |
| (1) Tl-204, 0.25 μCi (9.25 kBq), sealed disk (1″ diameter) | |
| (1) Sr-90, 0.1 μCi (3.7 kBq), sealed disk (1″ diameter) | |
| (1) Po-210, 0.1 μCi (3.7 kBq), unsealed disk (1″ diameter) |
The RSS8 source set is designed for gamma spectroscopy. It consists of 8 different gamma emitting isotopes that cover the entire range from 32 keV to 1332.49 keV.
All disk sources have an uncertainty of ± 20% of the labeled activity unless calibrated (± 5%) for an additional cost.
| RSS8 | (1) Ba-133, 1 μCi (37 kBq), sealed disk (1″ diameter) |
| (1) Cd-109, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Co-57, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Co-60, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Cs-137, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Mn-54, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) Na-22, 1 μCi (37 kBq), sealed disk (1″ diameter) | |
| (1) “Mixed Unknown” – Cs-137, Zn-65; 0.5 μCi (18.5 kBq), 1 μCi (37 kBq); sealed disk (1″ diameter) |
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