Title :
An LSO-based scanner for in-beam PET: a feasibility study
Author :
Lauckner, K. ; Crespo, P. ; Enghardt, W. ; Pawelke, J. ; Kraft, G.
Author_Institution :
Gesellschaft fur Schwerionenforschung mbH, Darmstadt, Germany
Abstract :
Over the last 3 years in-beam PET has proven its capability of quality assurance in carbon ion tumour therapy at the pilot project of cancer therapy at the Gesellschaft fur Schwerionenforschung (GSI) in Darmstadt, Germany. Here, the authors investigate the possibility of using LSO as the scintillation material for the next generation of in-beam PET cameras. They address the issue of background coincidences arising from the natural radioactivity of LSO. Because the true count rate measured with a BGO-based dual-head positron camera (total sensitive area of each head 21×42 cm2) during the cancer treatment averages at only 100 coincidences/s the authors studied the influence of the LSO background on realistic in-beam PET images
Keywords :
biomedical equipment; positron emission tomography; quality control; radiation therapy; solid scintillation detectors; tumours; 3 y; BGO-based dual-head positron camera; C; LSO background; LSO natural radioactivity; background coincidences; cancer therapy pilot project; carbon ion tumour therapy; medical diagnostic imaging; nuclear medicine; radiotherapy quality assurance; realistic in-beam PET images; scintillation material; sensitive area; true count rate; Area measurement; Cameras; Cancer; Energy resolution; Medical treatment; Positron emission tomography; Quality assurance; Radioactive materials; Solid scintillation detectors; Tumors;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.950024
