gamma counter


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gamma counter

[′gam·ə ‚kau̇nt·ər]
(engineering)
A device for detecting gamma radiation, primarily through the detection of fast electrons produced by the gamma rays; it either yields information about integrated intensity within a time interval or detects each photon separately.
References in periodicals archive ?
In the experimental model, a gamma counter placed over rat livers detects over time the concentrations of radiotracers.
Radioactivity was measured using an automatic gamma counter (Wizard, Finland).
It is now indicated for lymphatic mapping using a handheld gamma counter to locate lymph nodes draining a primary tumour site in patients with solid tumours for which this procedure is a component of intraoperative management.
Three tenders for the supply of (a) filters for the blood washing instruments, (b) a fully automated Gamma counter, also (c) requisites for the blood washing unit.
Unbound (%B = 0) and bound (%B = 100) fractions were collected from the MARS 6 eluent and the [sup.125]I-[Tyr]-BNP-32 in each fraction was measured (1480 Wizard 3 Gamma Counter, Spectrofuge) as shown in Fig.
The next morning, free and bound hormones were separated by addition of 100 [micro]L Sac-Cel (Immunodiagnostic Systems Limited, Tyne and Wear, UK) and a solution of cellulose-coupled antibodies (anti-sheep/goat); tubes were centrifuged, and the pellet of bound radiolabeled hormone was counted (Cobra gamma counter; Packard, Boston, MA, USA).
This assay was measured using a Genesys[TM] 5000 gamma counter (Laboratory Technologies, Inc.).
Gamma Counter. A 2480 Automatic Gamma Counter Wizard2 3" (Perkin Elmer, Waltham, MA, USA) was used to measure the radioactivity of samples retrieved from in vitro and in vivo experiments.