Title :
On-line monitoring and PET imaging of proton radiotherapy beams
Author :
Litzenberg, D.W. ; Bajema, J.F. ; Becchetti, F.D. ; Roberts, D.A. ; Ronningen, R. ; Molen, S. der ; Brown, J.A. ; Haken, R. K Ten ; Caraher, J. ; Hazard, C. ; Chawla, M.
Author_Institution :
Dept. of Phys., Michigan Univ., Ann Arbor, MI, USA
fDate :
30 Oct-5 Nov 1994
Abstract :
We have performed experiments which indicate that online monitoring of proton radiotherapy beams in tissue is feasible. Using a two-dimensional array of on-line BGO detectors, it is possible to image the production of β+-emitting isotopes (mainly 11 C, 13N, and 15O) as a function of tissue depth and time with pulsed proton beams of sufficiently low current. These measurements allow the dose and range of charged particle radiotherapy beams to be measured directly while the treatment is being delivered
Keywords :
positron emission tomography; radiation monitoring; radiation therapy; solid scintillation detectors; β+-emitting isotopes; 11C; 13N; 15O; Bi4Ge3O12; C; N; O; PET imaging; charged particle radiotherapy beams; dose; low current; on-line BGO detectors; on-line monitoring; proton radiotherapy beams; pulsed proton beams; range; tissue; tissue depth; treatment; two-dimensional array; Current measurement; Isotopes; Monitoring; Particle beam measurements; Particle beams; Particle measurements; Positron emission tomography; Production; Protons; Sensor arrays;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474742
