TY - JOUR A1 - Kataoka, R. A1 - Nakagawa, Y. A1 - Sato, T. T1 - Radiation dose of aircrews during a solar proton event without ground-level enhancement JO - Ann. Geophys. J1 - ANGEO VL - 33 IS - 1 SP - 75 EP - 78 Y1 - 2015/01/15 PB - Copernicus Publications SN - 1432-0576 UR - https://angeo.copernicus.org/articles/33/75/2015/ L1 - https://angeo.copernicus.org/articles/33/75/2015/angeo-33-75-2015.pdf DO - 10.5194/angeo-33-75-2015 ER -