Development and Characterization of Tissue Equivalent Proportional Counter for Radiation Monitoring in International Space Station

• Published in: Journal of astronomy and space sciences Vol. 30; no. 2; pp. 107 - 112
• Main Authors: Nam, Uk-Won, Lim, Chang Hwy, Lee, Jae Jin, Pyo, Jeonghyun, Moon, Bong-Kon, Lee, Dae-Hee, Park, Youngsik, Kim, Hyun Ok, Moon, Myungkook, Kim, Sunghwan
• Format: Journal Article
• Language: English
• Published: 한국우주과학회 01.06.2013; The Korean Space Science Society
• Subjects: international space station; linear energy transfer; tissue equivalent proportional counter; 천문학; tissue equivalent proportional counter; international space station; linear energy transfer
• ISSN: 2093-5587; 2093-1409
• DOI: 10.5140/JASS.2013.30.2.107

Tissue equivalent proportional counter (TEPC) can measure the Linear Energy Transfer (LET) spectrum and calculate the equivalent dose for the complicated radiation field in space. In this paper, we developed and characterized a TEPC for radiation monitoring in International Space Station (ISS). The prototype TEPC which can simulate a 2 μm of the site diameter for micro-dosimetry has been tested with a standard alpha source (241Am, 5.5 MeV). Also, the calibration of the TEPC was performed by the 252Cf neutron standard source in Korea Research Institute of Standards and Science (KRISS). The determined calibration factor was kf = 3.59×10-7 mSv/R.