Instrument: Riso Laboratory Anti-coincidence Beta Counters

Instrument Short Name: Riso Beta Counter
Instrument Description:

Low-level beta detectors manufactured by Riso (now Nutech) in Denmark. These instruments accept samples that can be mounted on a 25mm filter holder. These detectors have very low backgrounds, 0.17 counts per minute, and can have counting efficiencies as high as 55%.

See:
http://cafethorium.whoi.edu/website/about/services_radioanalytical_facility_equip.html
and
http://www.nutech.dtu.dk/Produkter/Dosimetri/NUK_instruments/GM_multicounter.aspx

PI supplied instrument name: Riso Laboratory Anti-coincidence Beta Counters
Dataset-specific description

234Th samples were analyzed using a Riso Anti-coincidence Beta Counter using a helium/1% butane mixture.