par Bruyndonckx, Peter;Debruyne, J.;Etienne, Léon 
;Gruwe, Magali ;Guerard, Bruno;Tavernier, S. ;Shuping, Zhang
Référence Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 310, 1-2, page (107-115)
Publication Publié, 1991-12
;Gruwe, Magali ;Guerard, Bruno;Tavernier, S. ;Shuping, ZhangRéférence Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 310, 1-2, page (107-115)
Publication Publié, 1991-12
Article révisé par les pairs
| Résumé : | This work is part of the design study for a medical positron emission tomography (PET) system based on the use of BaF2 scintillator and photosensitive wire chambers with TMAE. The number of photoelectrons per MEV (phe/MeV) is measured in the wire chamber and on a photomultiplier for crystals from five different suppliers. For the best crystals 26.7±2.0 phe/MeV in TMAE are observed, corresponding to an average quantum efficiency of TMAE for the fast component of BaF2 of (7.6±0.7)%. The performance of a PET scanner based on this principle was evaluated with a detailed Monte Carlo simulation. It is shown that the reduced energy resolution with wire chambers has only a marginal effect on the scatter rejection in the scanner. Finally LaF3:Nd3+ as an alternative to BaF2 was tested and found to give a disappointing photoelectron yield. © 1991. |
