Configuration of the parameters for scanner-based track detector evaluation system

• Autorzy: Csordás Anita , Tóth-Bodrogi Edit , Kovács Tibor

Identyfikatory

DOI

10.2478/nuka-2020-0021

• Konferencja: III International Conference „Radon in the Environment” (3 ; 27-31 May 2019 ; Krakow, Poland)
• Języki publikacji: EN

Abstrakty

EN

According to the new European Union Basic Safety Standards (EU-BSS), preparation of the National Radon Action Plan is obligatory for the Member States. One of the plan’s aims is to carry out an indoor radon survey to identify radon-prone areas. In the radon surveys, track detector methods are used. At the University of Pannonia (Veszprém, Hungary), a new scanner-based detector evaluation system has been developed. For the application of the new system, the selection of appropriate parameters is necessary. In this study, selection of the applied track detectors and setting of the etching conditions have been carried out. Two different types of allyl diglycol carbonate (ADC or CR-39) track detectors were investigated, taking into account the detector’s background and response during the exposure (determination of calibration factor). The Baryotrak’s background track density (0–1.5 tracksmm–2) was lower than that of the 0.8–4 tracksmm–2. The response of the Tastrak was higher, but the deviation of the calibration factor was much higher (1.2–5.3 × 10–3 tracksmm–2/(Bqdaym–3)) than in the case of the Baryotrak (1.4–2.8 × 10–3 tracksmm–2/(Bqdaym–3)). After the systematic review of the etching system, a new method was developed. For the determination of the optimal track diameter, the argon fluoride (ArF) laser was applied to create tracks with diameters in the range of 10–100 µ. The optimum track size was in the range of 40–60 µ. On this basis, new etching conditions were determined: 6.25 M NaOH solution, a temperature of 90 degree centigrade, and time period of 8 hours.

Słowa kluczowe

EN

background track density; CR-39; etching conditions; indoor radon; sensitivity for radon

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2020
• Tom: Vol. 65, No. 2
• Strony: 133--137
• Opis fizyczny: Bibliogr. 24 poz., rys.

Twórcy

autor

Csordás Anita

• Institute of Radiochemistry and Radioecology University of Pannonia Egyetem 10 St., H-8200 Veszprém, Hungary
• Social Organisation for Radioecological Cleanliness József Attila 7/A 2/10 St., H-8200 Veszprém, Hungary

autor

Tóth-Bodrogi Edit

• Institute of Radiochemistry and Radioecology University of Pannonia Egyetem 10 St., H-8200 Veszprém, Hungary

autor

Kovács Tibor

• Institute of Radiochemistry and Radioecology University of Pannonia Egyetem 10 St., H-8200 Veszprém, Hungary
• Social Organisation for Radioecological Cleanliness József Attila 7/A 2/10 St., H-8200 Veszprém, Hungary

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).