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

Volume

4

fYear

1994

fDate

30 Oct-5 Nov 1994

Firstpage

1672

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 ¹¹C, 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record

Conference_Location

Norfolk, VA

Print_ISBN

0-7803-2544-3

Type

conf

DOI

10.1109/NSSMIC.1994.474742

Filename

474742