Investigation of Two Pille Dosimeters Retrieved from the ISS
- Paper number
IAC-10.A1.4.3
- Author
Mr. Peter Szanto, Hungarian Academy of Sciences, KFKI Atomic Energy Research Institute, Hungary
- Coauthor
Dr. Sándor Deme, Hungarian Academy of Sciences, KFKI Atomic Energy Research Institute, Hungary
- Coauthor
Dr. Attila Hirn, MTA Centre for Energy Research, Hungary
- Coauthor
Mr. Istvan Apathy, KFKI Atomic Energy Research Institute, Hungary
- Coauthor
Dr. Tamás Pázmándi, Hungarian Academy of Sciences, KFKI Atomic Energy Research Institute, Hungary
- Year
2010
- Abstract
The Pille system was developed by the KFKI Atomic Energy Research Institute as the first and to date the only TLD system containing an on-board reader designed specifically for use by cosmonauts and astronauts while travelling in space. Since the first time it was launched in 1980, the Pille system worked onboard each space station. It has been continuously used on board the International Space Station since October 2003 under the supervision of the Institute for Biomedical Problems (IBMP) as the service dosimeter system of the Russian Zvezda module. In the past six years the dosimeter system was utilized for routine dose measurements inside the ISS, and as personal dosimeter system during EVAs. With the system consisting of a lightweight reader device and a number of TL dosimeters, more than 20000 read-outs were carried out until now. The Pille system provides monthly dose data from locations of the space station including Matroshka while two dosimeters are dedicated to EVA measurements, and one is read out in every 90 minutes automatically to provide high time resolution data. At the end of 2009 two dosimeters were retrieved from the ISS. The sensitivity of these dosimeters is 30% lower than it had been at the on-ground calibration before they were launched in 2003. Although the sensitivity of the dosimeters was stable in the last six years, and they provided useful and reliable measurement data, it is necessary to find the cause of the sensitivity decrease. The structural intactness, and several dosimetric properties (sensitivity, reproducibility) of the retrieved dosimeters were investigated.
- Abstract document
- Manuscript document
IAC-10.A1.4.3.pdf (🔒 authorized access only).
To get the manuscript, please contact IAF Secretariat.