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**Harvard**

Sato, T., Yasuda, H., Takada, M., Nakamura, T., Satoh, D., Endo, A., Niita, K. och Sihver, L. (2008) *PARMA: PHITS-based analytical radiation model in the atmosphere - Verification of its accuracy in estimating cosmic radiation doses*.

** BibTeX **

@conference{

Sato2008,

author={Sato, Tatsuhiko and Yasuda, Hiroshi and Takada, Masashi and Nakamura, Takashi and Satoh, Daiki and Endo, Akira and Niita, Koji and Sihver, Lembit},

title={PARMA: PHITS-based analytical radiation model in the atmosphere - Verification of its accuracy in estimating cosmic radiation doses},

booktitle={AIP Conference Proceedings: 8th International Symposium on the Natural Radiation Environment, NRE VIII; Buzios, Rio de Janeiro; Brazil; 7 October 2007 through 12 October 2007},

isbn={978-073540559-2},

pages={99-102},

abstract={Estimation of cosmic-ray spectra in the atmosphere has been an essential issue in the evaluation of the aircrew doses. We therefore developed an analytical model that can predict the terrestrial neutron, proton, He nucleus, muon, electron, positron and photon spectra at altitudes below 20 km, based on the Monte Carlo simulation results of cosmic-ray propagation in the atmosphere performed by the PHITS code. The model was designated PARMA. In order to examine the accuracy of PARMA in terms of the neutron dose estimation, we measured the neutron dose rates at the altitudes between 20 to 10400 m, using our developed dose monitor DARWIN mounted on an aircraft. Excellent agreement was observed between the measured dose rates and the corresponding data calculated by PARMA coupled with the fluence-to-dose conversion coefficients, indicating the applicability of the model to be utilized in the route-dose calculation.},

year={2008},

keywords={Aircrew dosimetry; Cosmic ray; PHITS; Radiation monitoring; Scintillator},

}

** RefWorks **

RT Conference Proceedings

SR Electronic

ID 253098

A1 Sato, Tatsuhiko

A1 Yasuda, Hiroshi

A1 Takada, Masashi

A1 Nakamura, Takashi

A1 Satoh, Daiki

A1 Endo, Akira

A1 Niita, Koji

A1 Sihver, Lembit

T1 PARMA: PHITS-based analytical radiation model in the atmosphere - Verification of its accuracy in estimating cosmic radiation doses

YR 2008

T2 AIP Conference Proceedings: 8th International Symposium on the Natural Radiation Environment, NRE VIII; Buzios, Rio de Janeiro; Brazil; 7 October 2007 through 12 October 2007

SN 978-073540559-2

SP 99

AB Estimation of cosmic-ray spectra in the atmosphere has been an essential issue in the evaluation of the aircrew doses. We therefore developed an analytical model that can predict the terrestrial neutron, proton, He nucleus, muon, electron, positron and photon spectra at altitudes below 20 km, based on the Monte Carlo simulation results of cosmic-ray propagation in the atmosphere performed by the PHITS code. The model was designated PARMA. In order to examine the accuracy of PARMA in terms of the neutron dose estimation, we measured the neutron dose rates at the altitudes between 20 to 10400 m, using our developed dose monitor DARWIN mounted on an aircraft. Excellent agreement was observed between the measured dose rates and the corresponding data calculated by PARMA coupled with the fluence-to-dose conversion coefficients, indicating the applicability of the model to be utilized in the route-dose calculation.

LA eng

DO 10.1063/1.2991285

LK http://dx.doi.org/10.1063/1.2991285

OL 30