A PLASTIC SCINTILLATION SPECTROMETER FOR HIGH-ENERGY BETA PARTICLES

被引：27
作者：
BECK, E
机构：
[1] CERN, Geneva
[2] Max-Planck-Institut für Kernphysik, Heidelberg
来源：
NUCLEAR INSTRUMENTS & METHODS | 1969年 / 76卷 / 01期
关键词：
D O I：
10.1016/0029-554X(69)90293-6
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A scintillation spectrometer has been built to measure beta spectra of short-lived isotopes. The spectrometer consists of two scintillators working in coincidence. The equipment has been calibrated for both electrons and positrons up to 9 MeV using the external beam of a betatron. The resolution ΔE of the spectrometer was found to vary with energy E as ΔE ∝ E 1 2. The pile-up of positron pulses with pulses from Compton recoil electrons of the annihilation radiation created in the scintillator was studied in detail. Its influence on the positron end-point energy was found to be small. In order to test the spectrometer, maximum beta energies in the decay of 68Ga, 82Rb, 90Y, 106Rh, and 118I have been determined. © 1969.
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页码：77 / +
页数：1
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