Optimization of methodology with solid state nuclear track detector (SSNTD)

Authors

  • Reginaldo Anderson Silva Federal Institute of Paraná
  • Ademar de Oliveira Ferreira Federal Institute of Paraná

DOI:

https://doi.org/10.15392/bjrs.v9i1A.1243

Keywords:

SSNTD methodology, sealed can technique, radon

Abstract

The present study aims to optimize the passive methodology with Solid state Nuclear Track Detector (SSNTD) called the sealed can technique in the physics laboratory of the Federal Institute of Paraná - Telêmaco Borba Campus. The work used a polycarbonate polymer as detector because it is a polycarbonate of national manufacture and of low cost. A factorial design was carried out with three variables, one with two levels, one with three levels and one with four levels, totaling 24 experiments. The factors evaluated were the volume of the sealed can (1000 ml, 300 ml and 200 ml), chemical attack time (1 h, 2 h, 3 h and 4 h) and the chemical attack solution (solution A, PEW-40 and solution B, KOH- 70). In all 24 experiments the can was sealed with aliquots of the same geological sample for 38 days before chemical revelation and counting of the tracks. The results showed that solution B can be discarded due to the low concentration of tracks obtained in all 12 experiments performed with it. The results for solution A showed that the highest concentration of tracks is obtained for the chemical revelation time of 3 h, regardless of volume, and that the volume of 300 ml is the best result. Thus the conclusion of the study is that solution A in the volume of 300 ml and with chemical revelation time of 3 h is the optimal procedure for the development of the tracks.

 

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References

ALBERIGI, S. Avaliação da exposição ao 222Rn nas cavernas do parque estadual turístico do alto Ribeira (PETAR). Instituto de pesquisas energéticas e nucleares (IPEN/CNEN), São Paulo-SP, Brazil, 2006.

UNSCEAR - United Scientic Committee on the Eects of Atomic RadiatioN. The Report to the general assembly with scientic annexes - Technical Report, New York, 2000.

KHAN, A. J.; PRASAD, R.; TYAGI, R. K. Measurement of radon exhalation rate from some building materials . International Journal of Radiation Applications and Instrumentation. Part D. Nuclear Tracks and Radiation Measurements, v. 20:4, p. 609-610, 1992.

FAHEEM, M.; MATIULLAH, MUJAHID, S. A. Assessment of radiological hazard due to the natural radioactivity in soil and building material samples collected from six districts on the Punjab province-Pakistan. Radiation Measurements, v. 43:8, p. 1443-1447, 2008.

MAHUR, A. K.; KUMAR, R.; SONKAWADE, R. G.; SENGUPTA, D.; PRASAD, R. Measurement of natural radioactivity and radon exhalation rate from rock samples of Jaduguda uranium mines and its radiological implications. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, v. 266:8, p.1591-1597, 2008.

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Published

2021-04-30

How to Cite

Silva, R. A., & Ferreira, A. de O. (2021). Optimization of methodology with solid state nuclear track detector (SSNTD). Brazilian Journal of Radiation Sciences, 9(1A). https://doi.org/10.15392/bjrs.v9i1A.1243

Issue

Section

The Meeting on Nuclear Applications (ENAN) 2019