Abstract
Zero discrimination level setting of liquid scintillation systems for counting of all single photoelectron pulses is required by both triple-to-double coincidence ratio (TDCR) and CIEMAT/NIST methods. However, this requirement may not be able to be met in some circumstances. The influence of rejection of a fraction of the single photoelectron peak has been studied both theoretically and experimentally on ³H, ⁶³Ni, ¹⁴C and ⁹⁰Sr/⁹⁰Y for both the TDCR and CIEMAT/NIST methods. A modified formula for calculation of efficiency is given in consideration of the rejected fraction of the single photoelectron peak.
Original language | English |
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Pages (from-to) | 490-496 |
Number of pages | 7 |
Journal | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment |
Volume | 558 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2006 |
Externally published | Yes |
Keywords
- ¹⁴C and ⁹⁰Sr/⁹⁰Y
- ³H
- ⁶³Ni
- CIEMAT/NIST
- Fraction correction
- Single photoelectron peak
- TDCR