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Electrochemical etching technique for neutron dosimetry

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Abstract

In the present work we have employed allyl diglycol carbonate (CR-39) and cellulose triacetate (CTA) plastic for detection of neutron recoil tracks without radiator. For CR-39, the results reveal that registration efficiency is a function of duration of chemical pre-etching and the best results are obtained with chemical pre-etching of 3 hours. It was also investigated that the ac field strength of 28 kV/cm having 2.5 kHz frequency was optimum for revelation of tracks. Interestingly the sensitivity is fluence dependent and it was constant up to a fluence of about 108 n/cm2. The sensitivity abruptly decreased with increased fluence. At optimum experimental conditions the minimum detection limit for CR-39 was found to be 0.47 mSv. For CTA, the tracks have been revealed by electrochemical etching (ECE) only and the minimum detection limit was found to be 0.85 mSv at optimum experimental parameters.

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Authors and Affiliations

  1. Department of Physics, Guru Nanak Dev University, Amritsar, 143 005, Punjab, India

    Ravi Chand Singh

  2. Chemistry Division, Irrigation & Power Research Institute, Amritsar, 143 001, Punjab, India

    Manwinder Singh

  3. 360, Sector 71, Mohali, 160 071, Punjab, India

    H. S. Virk

Authors
  1. Ravi Chand Singh
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  2. Manwinder Singh
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  3. H. S. Virk
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Correspondence to Ravi Chand Singh.

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Singh, R.C., Singh, M. & Virk, H.S. Electrochemical etching technique for neutron dosimetry. Indian J Phys 83, 827–832 (2009). https://doi.org/10.1007/s12648-009-0035-x

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  • DOI: https://doi.org/10.1007/s12648-009-0035-x

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