DETERMINATION OF THE RESPONSE TO THE ATMOSPHERIC COSMIC RADIATION OF A NEUTRON DOSIMETER ASSISTED BY MONTE CARLO SIMULATION

被引：1

作者：

Pereira, M. A. ^{[1
,2
]}

Federico, C. A. ^{[1
,2
]}

Goncalez, O. L. ^{[1
,2
]}

机构：

[1] Inst Tecnol Aeronaut, Praca Marechal Ar Eduardo Gomes 50, BR-12228900 Sao Jose Dos Campos, SP, Brazil

[2] Inst Estudos Avancados, BR-12228001 Sao Jose Dos Campos, SP, Brazil

来源：

RADIATION PROTECTION DOSIMETRY | 2018年 / 181卷 / 02期

关键词：

AIRCRAFT; ALTITUDES; FIELD;

D O I：

10.1093/rpd/ncx309

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A TLD-based dosimeter of polyethylene-lead-polyethylene, was developed and characterized with Monte Carlo simulations, using the MCNPX code. This passive system for the determination of the ambient dose equivalent (H*(10)) for neutrons over a wide energy range can be used for the dosimetry of neutrons from atmospheric cosmic radiation, on the ground, and onboard aircraft. A method assisted by Monte Carlo simulations that improves the calibration of fast neutron dosimeters based on moderation and thermalization of the incident fast flux and the measurement of the thermal flux by a sensor, which respond mainly to thermal neutrons, is presented in this work. The H*(10) energy response of this dosimeter was obtained from simulations for monoenergetic neutrons from 10(-10) to 10(4) MeV. The validation of the modeling was done with irradiations for ISO standard neutron fields of Am-241-Be, Cf-252 and Cf-252(D2O) at Instituto de Radioprotecao e Dosimetria (IRD, Brazil) and at CERN-EU high-energy reference field (CERF).

引用

页码：142 / 148

页数：7

共 23 条

[1] Comparison of the effective dose rate to aircrew members using hybrid computational phantoms in standing and sitting postures [J].

Alves, M. C. ;

Galeano, D. C. ;

Santos, W. S. ;

Lee, Choonsik ;

Bolch, Wesley E. ;

Hunt, John G. ;

da Silva, A. X. ;

Carvalho, A. B., Jr. .

JOURNAL OF RADIOLOGICAL PROTECTION, 2016, 36 (04) :885-901

[2]

[Anonymous], 2011, CELL

[3] Radiation protection aspects of the cosmic radiation exposure of aircraft crew [J].

Bartlett, DT .

RADIATION PROTECTION DOSIMETRY, 2004, 109 (04) :349-355

[4]

Desmaris G., 2016, Annals of the ICRP, V45, P64, DOI 10.1177/0146645316636009

[5]

European Commission, 1997, DG ENV NUCL SAF CIV

[6]

European Parliament and Council, 1996, OFFICIAL J L, V159, P1

[7] Radiation measurements onboard aircraft in the South Atlantic region [J].

Federico, C. A. ;

Goncalez, O. L. ;

Caldas, L. V. E. ;

Pazianotto, M. T. ;

Dyer, C. ;

Caresana, M. ;

Hands, A. .

RADIATION MEASUREMENTS, 2015, 82 :14-20

[8] Neutron spectra measurements in the south Atlantic anomaly region [J].

Federico, C. A. ;

Goncalez, O. L. ;

Fonseca, E. S. ;

Martin, I. M. ;

Caldasd, L. V. E. .

RADIATION MEASUREMENTS, 2010, 45 (10) :1526-1528

[9]

Federico C. A., 2012, BRAZ AER S SAB 2012

[10]

Federico C. A., 2011, THESIS

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