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Large 100 cm² rectangular thin window for high-efficiency surface surveys
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It also provides static or dynamic compensation of beta measurements for gamma background depending
32% for 230Th
Ludlum Model 44-21 Beta-Gamma Detector Scionix Holland Large 100 cm² rectangular thinIndicated Use Beta; Low energy gamma detection Detector Type NaI(Tl) scintillator, 2. 54 cm (1 in) dia. x 0. 1 cm (0. 04 in) thick, adhered to plastic scintillator, 0. 03 cm (0. 01 in) thick Window 3. 4 mg cm2 Window Area Active: 5. 1 cm2 (0. 8 in2) Open: 5. 1 cm2 (0. 8 in2) Efficiency (4) 14C: 4% 32P: 28% 125I: 38% 129I: 19% Typical Background (10 R hr field) 450 cpm Non Uniformity < 10% Photomultiplier Tube 3. 8 cm (1. 5 in) diameter Operating
US$ 70.00
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