Author(s): Hallil A, Brown M, Akatov Y, Arkhangelsky V, Chernykh I,
Abstract Share this page
Abstract Radiation measurements of surface and deep organ doses were performed aboard the International Space Station, for the period of January 2006 to April 2007, using a MOSFET dosimetry system combined with the Matroshka-R spherical phantom. The averaged internal and surface dose rates are found to be 0.19 and 0.29 mGy d(-1), respectively. The levels of radiation dose to blood-forming organs (BFO) and to surface organs are compared with recommended safe limits. The maximum measured BFO dose has an average dose rate of 0.23 mGy d(-1) (84 mGy y(-1)), corresponding to 44 \% of the recommended annual limit of 0.5 Sv, for a space radiation quality factor of 2.6. The annual surface dose is found to be higher at 126 mGy, corresponding to 16 \% of the eye dose limit and to 11 \% of the skin dose limit. Doses calculated using the Spenvis software showed deviations of up to 37 \% from measurements.
This article was published in Radiat Prot Dosimetry
and referenced in Air & Water Borne Diseases