| Autor: |
Agnieszka Syntfeld-Kazuch, Marek Moszynski, Tomasz Szczesniak, Lukasz Swiderski, Marek Szawlowski |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 749:68-73 |
| ISSN: |
0168-9002 |
| Popis: |
This study presents a simple experimental setup for precise inspection of scintillation decay character-istics as a function of the energy deposited in scintillators. The results are discussed for NaI:Tl, LSO:Ceand CeBr 3 crystals. The tested samples were coupled to a fast response R5320 photomultiplier fromHamamatsu. The decay time constants were measured by fitting the anode pulses of the PMT registereddirectly with a TDS5054B digital oscilloscope from Tektronix. Simple analog electronics composed oftiming single channel analyzers, gate generators and coincidence/logic unit was used for selection of thedeposited energy converted into light within the scintillator, and for triggering the scope to registerrelevant scintillation pulses. High precision of the experimental setup allowed for registration of non-proportionality curves for all samples. Moreover, non-proportionality was measured for fast and slowdecay mode of NaI:Tl separately. The measurement was also used for inspection of possible differences inthe pulse shapes originating from Compton scattering events and photoabsorption.& 2014 Elsevier B.V. All rights reserved. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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