Identyfikatory
Warianty tytułu
Języki publikacji
Abstrakty
A model of detection probe with a plastic scintillator (230 × 105 × 1 mm3) with a ZnS(Ag) layer at the top, and a model with six pancake Geiger-Müller (GM) counters were investigated as alpha particles (Am-241) and beta radiation (Sr-90) contamination detection probes at a dosimetric stand. A detection probe, 166 × 104 mm2 of active area, with a proportional counter was also investigated for comparison. The scintillation probe showed a higher alpha detection efficiency and a comparable beta detection efficiency with respect to the probe containing the proportional counter. The GM probe shoved a higher alpha detection efficiency, and a lower beta detection efficiency than the proportional counter probe. Detection efficiency of the scintillation probe strongly depends on the distance from the photomultiplier tube (PMT) photocathode. Active area of the GM probe of all counters constitutes approximately 50% of its measuring area.
Słowa kluczowe
Czasopismo
Rocznik
Tom
Strony
53--56
Opis fizyczny
Bibliogr. 7 poz., rys.
Twórcy
autor
autor
autor
- Laboratory of Nuclear Control Systems and Methods, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: +48 22 504 1261, Fax: +48 22 811 1917, b.machaj@ichtj.waw.pl
Bibliografia
- 1. DSP-15 dosimetric gate, www.ichtj.waw.pl/ltj/
- 2. Hanna hand-foot contamination monitors, www.raytest. com
- 3. Hasegawa T, Hashimoto T, Hashimoto M (2004) Radioactive contamination monitors. Fujielectric Rev 50;4:118–124
- 4. Med Nuklearmedizinetechnik Hand-Foot-Clothing Contamination Monitor, www.medical.siemens.com
- 5. Multi pixel photon counter, S10362-33-050C, www.hamamatsu.com
- 6. PN-EN 60325 Radiation protection instrumentation – alpha, beta and alpha/beta (beta energy > 60 keV) ontamination meters and monitors, www.findstandards. info.StandardsPage/18700.html
- 7.Recommended limits on radioactive contamination on surfaces in laboratories (1995), www.arpansa.gov.au/pubs/rhs/rhs38.pdf
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ7-0016-0077