| Content Provider |
IEEE Xplore Digital Library |
| Author |
Pani, R. Cinti, M.N. Pellegrini, R. Bennati, P. Ridolfi, S. Cencelli, V.O. Fabbri, A. De Notaristefani, F. Sacco, D. Navarria, F. Lo Meo, S. Lanconelli, N. Moschini, G. Boccaccio, P. Scafe, R. De Vincentis, G. |
| Copyright Year |
2009 |
| Description |
Author affiliation: Department of Radiological Science, ¿Sapienza¿ University of Rome (De Vincentis, G.) || INFN and ENEA, Casaccia, Rome Italy (Scafe, R.) || ISPESL DIPIA, Monte Porzio Catone, Rome, Italy (Sacco, D.) || INFN and EDEMOM PhD school of Microelectronics, Rome III University, Rome Italy (Bennati, P.) || INFN and the Department of Physics, University of Bologne, Bologne Italy (Navarria, F.; Lo Meo, S.; Lanconelli, N.) || INFN and Legnaro National Laboratory, Legnaro, Italy (Boccaccio, P.) || Italian Institute of Nuclear Physics -INFN and the Department of Experimental Medicine, ¿Sapienza¿ University of Rome, Viale R. Elena 272 00161, Rome Italy (Pani, R.; Cinti, M.N.; Pellegrini, R.; Ridolfi, S.) || INFN and Department of Electronic Engineering ¿Roma III¿ University, Rome, Italy (Cencelli, V.O.; Fabbri, A.; De Notaristefani, F.) || INFN and the Department of Physics, University of Padua, Padua Italy (Moschini, G.) |
| Abstract |
In this work we report on the performance of the MA-PMT prototype, Hamamatsu H8500C-100 MOD 8, with reduced dynode stages (eight) and super bialkali photocathode (38% Q.E. @ 380 nm). This tube represents the latest technological advancement to improve energy and spatial resolution of gamma imagers. It is particularly suitable for applications involving new high light yield scintillators. To evaluate the performances of this tube, we compared the energy and spatial resolution response with the analogous ones obtained from a standard H8500 MA-PMT coupled to a LaBr:Ce scintillation crystal with the same identity. All measurements were performed with a 64 channel electronic readout. An improvement of about 10% in energy and spatial resolution was found, not properly in agreement with the increased value of quantum efficiency. However, this detector configuration permits to obtain 0.92 mm value of the intrinsic spatial resolution and 7.4% of energy resolution which represent the best results obtained with 4.0 mm thickness continuous LaBr3:Ce crystal. |
| Starting Page |
1542 |
| Ending Page |
1546 |
| File Size |
351021 |
| Page Count |
5 |
| File Format |
PDF |
| ISBN |
9781424439614 |
| ISSN |
10957863 |
| DOI |
10.1109/NSSMIC.2009.5402274 |
| Language |
English |
| Publisher |
Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date |
2009-10-24 |
| Publisher Place |
USA |
| Access Restriction |
Subscribed |
| Rights Holder |
Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword |
Spatial resolution Energy resolution Anodes Photomultipliers Prototypes Cathodes Performance evaluation Solid scintillation detectors Physics Photodetectors Cerium doped lanthanum tri-bromide scintillator Position sensitive gamma-ray detector Multi Anode photomultiplier |
| Content Type |
Text |
| Resource Type |
Article |
