RT Journal Article
T1 Simultaneous measurement of the spectral and temporal properties of a LINAC pulse from outside the treatment room
A1 Sánchez-Tembleque Verbo, Victor
A1 Sánchez Parcerisa, Daniel
A1 Valladolid Onecha, Víctor
A1 Fraile Prieto, Luis Mario
A1 Udías Moinelo, José Manuel
AB A detection system composed of a CeBr3 scintillating crystal coupled with a photomultiplier tube and connected to a digital oscilloscope was installed in the control room of a Cyberknife™ clinical accelerator during normal irradiation in order to infer the temporal characteristics of the beam and spectral characteristics of the low-intensity scattered radiation present outside the treatment room. Three batches of 20,000 pulses were measured at three different gantry angles. After digitalization and post-processing of the signals, the time profile of the beam pulses was determined with an accuracy of 14 ns with respect to the gating signal, while the energy spectrum of the measured radiation field could be acquired with a resolution of 5.5%. The proposed device makes it possible, thanks to the increased sensitivity of the scintillating crystals and the digital signal processing techniques in place, to monitor the properties of the radiation present outside the bunker produced by the treatment beam, minimizing interference with patient treatment, QA or research activitie
PB Elsevier
SN 0969-806X
YR 2019
FD 2019-01-07
LK https://hdl.handle.net/20.500.14352/12450
UL https://hdl.handle.net/20.500.14352/12450
LA eng
NO Work supported by the Spanish Government (FPA2015-65035-P, RTC-2015-3772-1), Comunidad de Madrid (S2013/MIT-3024 TOPUS-CM) and European Regional Funds. This is a Contribution for the Moncloa Campus of International Excellence, “Grupo de Física Nuclear-UCM”, Ref. 910059. The authorsacknowledge partial support by EU's H2020 under MediNet: a Networking Activity of ENSAR-2 (grant agreement 654002).
NO Unión Europea. Horizonte 2020
NO Ministerio de Ciencia e Innovación (MICINN)
NO Comunidad de Madrid
NO Campus de Excelencia Internacional Moncloa
DS Docta Complutense
RD 10 abr 2025