Beta Reference Standard Set *

Beta Reference Standard Set * [ TYPE NO.: BS280 ]

Technical Data

Beta Reference Standard Set BS 280 consists of a set of FIVE uncalibrated Beta reference 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. These radioactive sources offered are from BRIT. This BS280 serves as an uncalibrated reference source set, for RC605A with Beta probe — wide end window GM. Detector and also for low background Beta counting system. The accuracy of these sources is in the range of +/-10%. All these disc 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
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