<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Commissioning beam data are treated as a reference and ultimately used by treatment planning systems, therefore, it is vitally important that the collected data are of the highest quality, in order to avoid dosimetric and patient treatment errors that may subsequently lead to a poor radiation outcome. High-energy photon and electron beams from different accelerators of the same nominal energy may have different dosimetric characteristics due to differences in target and flattening filter materials, accelerator guide and collimator designs. In the present study, clinically pertinent data for the available photon energy were investigated. For making measurements in water, first time in India, a three dimensional radiation field analyzer RFA (CRS- Scan -O-Plan) was used. For absolute dosimetry and other measurements like relative output factors, wedge factors etc., a DOSE1 electrometer (Scanditronix Wellhofer) in a white polystyrene was employed. All the measured data were utilized as an input to the ECLIPSE treatment planning system for further clinical use.</p></abstract>

Commissioning beam data are treated as a reference and ultimately used by treatment planning systems, therefore, it is vitally important that the collected data are of the highest quality, in order to avoid dosimetric and patient treatment errors that may subsequently lead to a poor radiation outcome. High-energy photon and electron beams from different accelerators of the same nominal energy may have different dosimetric characteristics due to differences in target and flattening filter materials, accelerator guide and collimator designs. In the present study, clinically pertinent data for the available photon energy were investigated. For making measurements in water, first time in India, a three dimensional radiation field analyzer RFA (CRS- Scan -O-Plan) was used. For absolute dosimetry and other measurements like relative output factors, wedge factors etc., a DOSE1 electrometer (Scanditronix Wellhofer) in a white polystyrene was employed. All the measured data were utilized as an input to the ECLIPSE treatment planning system for further clinical use.

Physical characteristics of photon beam from a CLINAC-DBX single energy accelerator

Department of Radiotherapy & Oncology, Rural Medical College, Pravara Inst. of Medical Sciences, Loni, Maharashtra, India

Kidwai Memorial Institute of Oncology, Bangalore, Karnataka, India

Rajendra Institute of Medical Sciences, Ranchi, Jharkhand, India

Department of Physics, Ranchi University, Ranchi, Jharkhand, India

Polish Journal of Medical Physics and Engineering

Commissioning beam data are treated as a reference and ultimately used by treatment planning systems, therefore, it is vitally important that the collected...

Physical characteristics of photon beam from a CLINAC-DBX single energy accelerator

Publié en ligne: 20 mars 2012

Pages: 143 - 151

DOI: https://doi.org/10.2478/v10013-011-0014-3

Mots clés
commissioning, radiation field analyzer, electron beam, linear accelerator, dosimetry

This content is open access.

Physical characteristics of photon beam from a CLINAC-DBX single energy accelerator

Publié en ligne: 20 mars 2012

Pages: 143 - 151

DOI: https://doi.org/10.2478/v10013-011-0014-3

Mots cléscommissioning, radiation field analyzer, electron beam, linear accelerator, dosimetry

This content is open access.

Mots clés
commissioning, radiation field analyzer, electron beam, linear accelerator, dosimetry