Application of polystyrene films for indoor radon dosimetry as SSNTD

作者：Hadad Kamal^*; Sarshough Samira; Faghihi Reza; Taheri Mehran

来源：Applied Radiation and Isotopes, 2013, 74: 23-25.

DOI：10.1016/j.apradiso.2012.12.008

• SSNTD
• Radon dosimetry
• Passive monitoring
• Polystyrene films
• Lexan polycarbonate

In this study, the sensitivities and calibration factors of polystyrene (PS) to Rn-220 and Rn-222 have been investigated. The sensitivity of compact disks (CD/DVD) as thick polycarbonates (PC) to Rn-220 and Rn-222 has been also obtained by applying a new etching condition. Five different brands of X-ray radiology and MRI films with polystyrene base and four brands of CD/DVDs have been studied to assess their applicability as a passive detector for indoor radon monitoring. The comparison between the sensitivities of PS samples, CD/DVDs (as thick PC) and Lexan PC to Rn-222 and Rn-220 shows an improved sensitivity of PS over conventional PC currently being used as solid state nuclear track detectors (SSNTD). The sensitivity of X-ray radiology PS films to Rn-222 and Rn-220 was found to be 8.77 +/- 0.591 and 0.028 +/- 0.006 (cm(-2) kBq(-1) d(-1) m(3)). The sensitivities of MRI PS films to Rn-222 and Rn-220 was found to be 12.2 +/- 1.25 and 0.360 +/- 0.090 (cm(-2) kBq(-1) d(-1) m(3)). The CD/DVD PC found to have a sensitivity of 0.178 +/- 0.013 and 0.0024 +/- 0.00013 (cm(-2) kBq(-1) d(-1) m(3)) to Rn-222 and Rn-220 respectively.

• 出版日期2013-4