Large area scintillation detector for dosimetric stand with improved light collection

• Autorzy: Machaj B. , Mirowicz J. , Kowalska E.
• Języki publikacji: EN

Abstrakty

EN

In order to improve scintillation light collection from a thin plastic scintillator, the shape of a light reflector, and a new concept of extraction scintillation light trapped inside the scintillator were investigated. The trapped scintillation light is extracted from the scintillator by cutting the scintillator into two pieces with the edges machined at an angle of 45 centi grade and polished. Considerable improvement of detection efficiency can be achieved when the extracted and the escape scintillation light are collected together. Prototype of such a scintillation probe was constructed and investigated.

Słowa kluczowe

EN

large area scintillator; light collection; radioactive contamination

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2011
• Tom: Vol. 56, No. 4
• Strony: 317--321
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Machaj B.

autor

Mirowicz J.

autor

Kowalska E.

• Laboratory of Nuclear Control Systems and Methods, Institute of Nuclear Chemistry and Technology, 16 Dorodna Str., 03-195 Warsaw, Poland, Tel.: [phone], Fax: [phone],

Bibliografia

• 1. Determining lower limit of detection (LLD) and minimum detectable activity (MDA) for radiation measurements. (Technical Bulletin), http://www.rss.usda.gov/publications/mdatb.htm
• 2. Eljen Technology, http://www.eljentechnology.com
• 3. Hamamatsu Photonics, http://www.hamamatsu.com
• 4. Hand-foot clothing monitor, http://www.lkb.com.au/products_.htm
• 5. Hanna hand-foot contamination monitors, http://wwwraytest.com
• 6. Hasegawa T, Hashimoto T, Hashimoto M (2004) Radioactive contamination monitors. Fuji Electr Rev 50;4:118–124
• 7. Maekawa T, Sumita A, Makino S (1998) Thin beta detectors using plastic scintillator combined with wavelength shifting fibers for surface contamination monitoring. J Nucl Sci Technol 35;12:886–894
• 8. Med Nuklearmedizinetechnik Hand-Foot-Clothing Contamination Monitor, http://www.medical.siemens.com
• 9. NHMRC (1995) Recommended limits on radioactive contamination on surfaces in laboratories (1995). Radiation Health Series no. 38. National Health and Medical Research Council, Canberra, http://www.arpansa.gov.au/pubs/rhs/rhs38.pdf
• 10. PN-EN 60325. Radiation protection instrumentation – alpha, beta and alpha/beta (beta energy > 60 keV) contamination meters and monitors, http://findstandards.info/StandardsPage/18700.html