Beta Reference Standard Set Type: BS280 consists of a set of FIVE Beta sources evaporated and sealed on 25mm dia x 5mm plastic disc covering FIVE photopeak energies with activity in the range of 0.1 to 0.4 micro curie. A reference chart for this is given below. The accuracy of these sources is in the range of +/-10%. All these dics sources are enclosed in a neatly polished wooden box .
Isotope
Energy MeV
Nominal Activity
Half Life
Co-60
0.315 (99.74%)
0.1-0.3 µci
5.27 Years
Ca-45
0.253 (100%)
0.1-0.3 µci
163.8 Days
Sr90+Yt-90
0.546 (100%)
0.1-0.3 µci
28.5 Years
Tl-204
0.770 (98%)
0.1-0.3 µci
4 Years
Pm-147
0.2245 (100%)
0.1-0.3 µci
2.62 Years
Dummy
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Plot No.162 A & B, Phase-II, IDA, Cherlapally, Hyderabad-500051 India Phone:+91-40-27263701, 32918055, 32914548 Fax : 040 - 27262146
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