Space Radiation Measurement on the Polar Route onboard the Korean Commercial Flights

Abstract

This study was performed by the policy research project of Ministry of Land, Transport and Maritime Affairs, which title is "Developing safety standards and management of space radiation on the polar route". In this research, total six experiments were performed using Korean commercial flights (B747). Three of those are on the polar route and the other three are on the north pacific route. Space radiation exposure measured on the polar route is the average 84.7 uSv. The simulation result using CARI-6M program gives 84.9 uSv, which is very similar to measured value. For the departure flight using the north pacific route, the measured space radiation is the average 74.4 uSv. It seems that is not so different to use the polar route or not for the return flight because the higher latitude effect causing the increase of space radiation is compensated by the shortened flight time effect causing decreasing space radiation exposure.

Overview of the Liulin type instruments for space radiation measurement and their scientific results

“…Very similar instruments to the Mobile Dosimetry Units MDU-5 and 6 were used by scientific groups in Spain (Sáez Vergara and Dominguez-Mompell, 2009) and Korea (Hwang et al, 2010) for radiation measurements on aircraft.…”

“…This is used by aircraft instruments for positioning of the measurements by the geographic longitude, latitude, altitude above sea level and Universal Time (UT) (Green et al, 2005;Getley et al, 2010;Hwang et al, 2010).…”

Development of Data Integration System for Ground-Based Space Weather Observational Facilities

“…고에너지 입자는 인공위성과 우주선의 센서, 태양 전지에 침투하 여 고장을 일으키거나 수명을 단축시켜 경제적 손실을 일으킨다 (Dorman et al, 2010;Woo, 2007). 또한, 우주인 은 물론 북극항로를 운행하는 비행기의 승객이나 승무 원에게도 방사선 피폭을 일으킬 수 있다 (Hwang et al, 2010;Mertens et al, 2005). 태양폭발은 전력 시스템 고 장을 일으키기도 하는데 실제로 1989년 캐나다 퀘벡주 전역의 대규모 송전 시설에 영향을 미쳐 약 600만 명의 주민이 6시간 동안 전력 공급을 받지 못하고 시설보수 비용만 수백만 달러가 넘었다.…”

Modeling of Space Radiation Exposure Estimation Program for Pilots, Crew and Passengers on Commercial Flights

“…Stakeholders and even the public have started wondering how much radiation they are exposed to per flight. So the in-flight measurement experiments of space radiations were performed in 2009 for the safety of flight attendants and passengers (Hwang et al 2010).…”