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- Casolino, M., et al.
(författare)
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The altcriss project on board the International Space Station
- 2007
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Ingår i: Advances in Space Research. - : Elsevier BV. - 1879-1948 .- 0273-1177. ; 40:11, s. 1746-1753
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Tidskriftsartikel (refereegranskat)abstract
- The Alteriss project aims to perform a long term survey of the radiation environment on board the International Space Station. Measurements are being performed with active and passive devices in different locations and orientations of the Russian segment of the station. The goal is to perform a detailed evaluation of the differences in particle fluence and nuclear composition due to different shielding material and attitude of the station. The Sileye-3/Alteino detector is used to identify nuclei up to Iron in the energy range above similar or equal to 60 MeV/n. Several passive dosimeters (TLDs, CR39) are also placed in the same location of Sileye-3 detector. Polyethylene shielding is periodically interposed in front of the detectors to evaluate the effectiveness of shielding on the nuclear component of the cosmic radiation. The project was submitted to ESA in reply to the AO in the Life and Physical Science of 2004 and data taking began in December 2005. Dosimeters and data cards are rotated every 6 months: up to now three launches of dosimeters and data cards have been performed and have been returned with the end of expedition 12 and 13. (C) 2007 Published by Elsevier Ltd on behalf of COSPAR.
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| 3. |
- Larsson, Oscar, et al.
(författare)
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Measurements of heavy-ion anisotropy and dose rates in the Russian section of the International Space Station with the Sileye-3/Alteino detector
- 2015
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Ingår i: Journal of Physics G. - : IOP Publishing. - 0954-3899 .- 1361-6471. ; 42:2, s. 025002-
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Tidskriftsartikel (refereegranskat)abstract
- In this work we present data on linear energy transfer (LET), dose and dose equivalent rates from different locations of the Russian part of the International Space Station (ISS) measured by the Sileye-3/Alteino detector. Data were taken as part of the ESA ALTCRISS project from late 2005 through 2007. The LET rate data shows a heavy-ion (LET > 50 keV/mu m) anisotropy. From the heavy-ion LET rate in the Zvezda service module we find ISS (y) over cap (Starboard) and (z) over cap (Nadir) to be about 10-15 times higher than in (x) over cap (Forward). The situation is similar for dose and dose equivalent rates, ranging from 25-40 mu Gy d(-1) in (x) over cap to about 75 mu Gy d(-1) in (z) over cap, whereas for the dose equivalent the rate peaks in (y) over cap with around 470 mu Sv d(-1). The heavy-ion anisotropy confirms what has been reported by the ALTEA collaboration. Measurements using two sets of passive detectors, DLR-TLDs and PADLES (TLD+CR-39), have also been performed in conjunction with Alteino measurements, both shielded and unshielded. The passive detectors register a dose rate about 3-5 times as high as Alteino, 260-280 mu Gy d(-1) for PADLES and 200-260 mu Gy d(-1) for DLR-TLDs. For the dose equivalent PADLES measurements ranges from 560-740 mu Sv d(-1).
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