TY - JOUR
T1 - Monte Carlo characterization and benchmarking of extended range REM meters for its application in shielding and radiation area monitoring in Compact Proton Therapy Centers (CPTC)
AU - García-Fernández, Gonzalo F.
AU - Cevallos-Robalino, Lenin E.
AU - García-Baonza, Roberto
AU - Gallego, Eduardo
AU - Vega-Carrillo, Héctor R.
AU - Guzman-García, Karen A.
AU - Lorente, Alfredo
AU - Ibáñez, Sviatoslav
N1 - Copyright © 2019 Elsevier Ltd. All rights reserved.
PY - 2019/10/1
Y1 - 2019/10/1
N2 - Compact Proton Therapy Centers, CPTC, have a single treatment room, and are technologically more affordable, smaller, advanced and easier to use. From a radiological protection point of view, the leading concern in CPTC are interactions of protons with components of the facility and patients that yield a broad emission of secondary particles, mainly high-energy neutrons, up to 230 MeV, and photons. Optimal design of shielding involves theoretical assumptions in the design phase and, consequently, experimental measurements with extended range neutron detectors must be carried out in the facility during the commissioning period to verify the design, assumptions and building of the enclosures. There are almost 50 CPTC under construction and planning around the world, hence the improvement of methodologies to verify the shielding and to evaluate the dose to workers and general public in CPTC is a trending issue. The aim of this work was to evaluate and compare the response of two commercial extended range REM meters, WENDI-II and LUPIN-II, for their application in shielding verification and radiation area monitoring in CPTC facilities, by estimating the ambient dose equivalent, H*(10), through the Monte Carlo code MCNP6. The results have been compared with previous works. Likewise, the performance evaluation of these devices in continuous energy neutron field have been carried out, using the AmBe/241 neutron source of the Neutronics Hall (NH) of the Neutron Measurements Laboratory of the Energy Engineering Department of Universidad Politecnica de Madrid (LMN-UPM), through Monte Carlo simulation with the MCNP6 code and experimental measurements. The work is framed into the project Contributions to Shielding and Dosimetry of Neutrons in CPTC.
AB - Compact Proton Therapy Centers, CPTC, have a single treatment room, and are technologically more affordable, smaller, advanced and easier to use. From a radiological protection point of view, the leading concern in CPTC are interactions of protons with components of the facility and patients that yield a broad emission of secondary particles, mainly high-energy neutrons, up to 230 MeV, and photons. Optimal design of shielding involves theoretical assumptions in the design phase and, consequently, experimental measurements with extended range neutron detectors must be carried out in the facility during the commissioning period to verify the design, assumptions and building of the enclosures. There are almost 50 CPTC under construction and planning around the world, hence the improvement of methodologies to verify the shielding and to evaluate the dose to workers and general public in CPTC is a trending issue. The aim of this work was to evaluate and compare the response of two commercial extended range REM meters, WENDI-II and LUPIN-II, for their application in shielding verification and radiation area monitoring in CPTC facilities, by estimating the ambient dose equivalent, H*(10), through the Monte Carlo code MCNP6. The results have been compared with previous works. Likewise, the performance evaluation of these devices in continuous energy neutron field have been carried out, using the AmBe/241 neutron source of the Neutronics Hall (NH) of the Neutron Measurements Laboratory of the Energy Engineering Department of Universidad Politecnica de Madrid (LMN-UPM), through Monte Carlo simulation with the MCNP6 code and experimental measurements. The work is framed into the project Contributions to Shielding and Dosimetry of Neutrons in CPTC.
KW - Ambient dose equivalent
KW - Compact proton therapy centers
KW - LUPIN-II
KW - MCNP6
KW - Proton therapy
KW - WENDI-II
UR - http://www.scopus.com/inward/record.url?scp=85068444166&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/monte-carlo-characterization-benchmarking-extended-range-rem-meters-application-shielding-radiation
U2 - 10.1016/j.apradiso.2019.07.001
DO - 10.1016/j.apradiso.2019.07.001
M3 - Article
C2 - 31295682
AN - SCOPUS:85068444166
SN - 0969-8043
VL - 152
SP - 115
EP - 126
JO - Applied Radiation and Isotopes
JF - Applied Radiation and Isotopes
ER -