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Title: Proposal of a Novel Setup for Linac Monitoring Using a Specifically Designed Plastic Scintillator and a Spectrophotometer
Authors: Barbosa, F. Moreno
Merino, R. Palomino
Barbosa, E. Moreno
Chumacero, E. Miguel
Bravo, O. Martínez
Alonso, B. d. e Celis
Keywords: LINAC
Issue Date: 8-Aug-2016
Publisher: Chitkara University Publications
Abstract: In this work we report the design, implementation and results of an alternative monitoring system for a linear accelerator (LINAC) used in medical therapy. The system proposed consist in aslab of scintillator plastic with awavelength shifter fiberoptically coupled to collect the light generated,and a Spectrophotometer Ocean Optics USB4000 as analyzer. The control was made with two computers, one into the therapy room and another, using a VNC (Virtual Network Computer) and Ethernet wire, outside of the room in order to avoid radiation exposure. The LINAC dose range covered was 1, 2, 3, 4, 5, 10, 20, 30 and 40 Monitor Units (MU) with 6 and 18 MeV energy photons. The spectrum obtained was compared with the measures of the LINAC ionization camera used to calibrate it. The results obtained allowus to propose this device as an alternative method to monitor the LINAC performance.
ISSN: Print - 2321-8649
Online 2321-9289
Appears in Collections:JNP Volume 4 Number 1 (August - 2016)

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