Measurements of Cosmic-Ray Neutron Energy Spectra from Thermal to 15 MeV with Bonner Ball Neutron Detector in Aircraft

References

• International Commission on Radiological Protection (ICRP) . 1991 . “ 1990 Recommendations of the International Commission on Radiological Protection ” . In ICRP Publication 60, Ann. ICRP Vol. 21 , 33 – 34 . Oxford : Pergamon Press . 1-3
   Google Scholar
• Goldhagen , P. 2000 . “Overview of aircraft radiation exposure and recent ER-2 measurements,” . Health Phys. , 79 ( 5 ) : 526 – 544 .
   PubMedGoogle Scholar
• Goldhagen , P. , Reginatto , M. , Kniss , T. , Wilson , J. W. , Singleterry , R. C. , Jones , I. W. and Van Steveninck , W. 2002 . “Measurement of the energy spectrum of cosmic-ray induced neutrons aboard an ER-2 high-altitude airplane,” . Nucl. Instrum. Methods A , 476 : 42 – 51 .
   PubMed Web of Science ®Google Scholar
• Goldhagen , P. , Clem , J. M. and Wilson , J. W. 2004 . “The energy spectrum of cosmic-ray induced neutrons measured on an airplane over a wide range of altitude and latitude,” . Radiat. Prot. Dosim. , 110 ( 1-4 ) : 387 – 392 .
   PubMedGoogle Scholar
• O'Sullivan , D. , Bartlett , D. , Grillmaier , R. , Heinrich , W. , Lindborg , L. , Schraube , H. , Silari , M. , Tommasino , L. and Zhou , D. 2000 . “Investigation of radiation fields at aircraft altitude,” . Radiat. Prot. Dosim. , 92 ( 1-3 ) : 195 – 198 .
   Google Scholar
• Wiegel , B. , Alevra , A. V. , Matzke , M. , Schrewe , U. J. and Wittstock , J. 2002 . “Spectrometry using the PTB neutron multisphere spectrometer (NEMUS) at flight altitudes and at ground level,” . Nucl. Instrum. Methods A , 476 : 52 – 57 .
   Web of Science ®Google Scholar
• Bartlett , D. T. , Hager , L. G. , Tanner , R. J. and Steele , J. D. 2001 . “Measurements of the high energy neutron component of cosmic radiation fields in aircraft using etched track dosemeters,” . Radiat. Meas. , 33 : 243 – 253 .
   Google Scholar
• Bartlett , D. T. , Hager , L. G. , Irvine , D. and Bagshaw , M. 2000 . “Measurements on Concorde of the cosmic radiation field at aviation altitudes,” . Radiat. Prot. Dosim. , 91 ( 4 ) : 365 – 376 .
   Google Scholar
• Schrewe , U. J. 2000 . “Global measurements of the radiation exposure of civil air crew from 1997 to 1999,” . Radiat. Prot. Dosim. , 91 ( 4 ) : 347 – 364 .
   Google Scholar
• Kyllonen , J.-E. , Lindborg , L. and Samuelson , G. 2001 . “Cosmic radiation measurements on-board aircraft with the variance method,” . Radiat. Prot. Dosim. , 93 ( 3 ) : 197 – 205 .
   PubMedGoogle Scholar
• Lewis , B. J. , McCall , M. J. , Green , A. R. , Bennett , L. G. I. , Pierre , M. , Schrewe , U. J. , O'Brien , K. and Felsberger , E. 2001 . “Aircrew exposure from cosmic radiation on commercial airline routes,” . Radiat. Prot. Dosim. , 93 ( 4 ) : 293 – 314 .
   PubMedGoogle Scholar
• Nakamura , T. , Uwamino , Y. , Ohkubo , T. and Hara , A. 1987 . “Altitude variation of cosmic-ray neutrons,” . Health Phys. , 53 ( 5 ) : 509 – 517 .
   PubMed Web of Science ®Google Scholar
• EXPACS Homepage, http://phits.jaea.go.jp/expacs/.
   Google Scholar
• Sato , T. and Niita , K. 2006 . “Analytical functions to predict cosmic-ray neutron spectra in the atmosphere,” . Radiat. Res. , 166 : 544 – 555 .
   PubMed Web of Science ®Google Scholar
• Sato , T. , Yasuda , H. , Niita , K. , Endo , A. and Sihver , L. 2008 . “Development of PARMA: PHITS-based analytical radiation model in the atmosphere,” . Radiat. Res. , 170 : 244 – 259 .
   PubMed Web of Science ®Google Scholar
• Matsumoto , H. , Goka , T. , Koga , K. , Iwai , S. , Uehara , T. , Sato , O. and Takagi , S. 2001 . “Real-time measurement of low-energy-range neutron spectra on board the space shuttle STS-89 (S/MM-8),” . Radiat. Meas. , 33 : 321 – 333 .
   Google Scholar
• Koshiishi , H. , Matsumoto , H. , Chishiki , A. , Goka , T. and Omodaka , T. 2007 . “Evaluation of the neutron radiation environment inside the International Space Station based on the Bonner ball neutron detector experiment,” . Radiat. Meas. , 42 : 1510 – 1520 .
   Google Scholar
• Niita , K. , Sato , T. , Iwase , H. , Nose , H. , Nakashima , H. and Sihver , L. 2006 . “PHITS—A particle and heavy ion transport code system,” . Radiat. Meas. , 41 : 1080 – 1090 .
   Web of Science ®Google Scholar
• Reginatto , M. and Goldhagen , P. 1998 . MAXED, A Computer Code for the Deconvolution of Multisphere Neutron Spectrometer Data Using the Maximum Entropy Method Environmental Measurements Laboratory, U.S. Department of Energy . USDOS Report EML-595
   Google Scholar
• Reginatto , M. and Goldhagen , P. 1999 . “MAXED, a computer code for maximum entropy deconvolution of multisphere neutron spectrometer data,” . Health Phys. , 77 ( 5 ) : 579 – 583 .
   PubMedGoogle Scholar
• Reginatto , M. , Goldhagen , P. and Neumann , S. 2002 . “Spectrum unfolding, sensitivity analysis and propagation of uncertainties with the maximum entropy deconvolution code MAXED,” . Nucl. Instrum. Methods A , 476 : 242 – 246 .
   Web of Science ®Google Scholar
• Nakamura , T. , Nunomiya , T. , Abe , S. , Terunuma , K. and Suzuki , H. 2005 . “Sequential measurements of cosmic-ray neutron spectrum and dose rate at sea level in Sendai, Japan,” . J. Nucl. Sci. Technol. , 42 ( 10 ) : 843 – 853 .
   Web of Science ®Google Scholar
• Ferrari , A. , Pelliccioni , M. and Villari , R. 2004 . “Evaluation of the influence of aircraft shielding on the aircrew exposure through an aircraft mathematical model,” . Radiat. Prot. Dosim. , 108 ( 2 ) : 91 – 105 .
   PubMedGoogle Scholar
• International Commission on Radiological Protection . 1996 . Conversion Coefficients for Use in Radiological Protection against External Radiation Vol. 26 , Oxford : Pergamon Press . ICRP Publication 74, Ann. ICRP, 3/4
   Google Scholar
• Yasuda , H. , Yajima , K. , Sato , T. , Takada , M. and Nakamura , T. 2009 . “Responses of selected neutron monitors to cosmic radiation at aviation altitudes,” . Health Phys. , 96 ( 6 ) : 655 – 660 .
   PubMedGoogle Scholar
• Armstrong , T. W. , Chandler , K. C. and Barish , J. 1973 . “Calculations of neutron flux spectra induced in the Earth's atmosphere by galactic cosmic rays,” . J. Geophys. Res. , 78 ( 16 ) : 2715 – 2726 .
   Google Scholar
• Hess , W. N. , Patterson , H. W. , Wallace , R. and Chupp , E. L. 1959 . “Cosmic-ray neutron energy spectrum,” . Phys. Rev. , 116 ( 2 ) : 445 – 457 .
   Google Scholar