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Comparison of neutron doses measured by CR-39 via LET spectrometry and neutron rem meter

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Abstract

Neutron dose for proton induced reactions on the combination of 7Li and 181Ta target was measured using CR-39 detector and a neutron rem meter, at five different proton energies (8–24 MeV). In case of CR-39, the dose equivalent (H LET) was measured via linear energy transfer (LET) spectrometry method using the major, minor radii of each track and thickness of removed surface, whereas the rem meter provided the direct reading of ambient dose equivalent [H*(10)]. Both these quantities per incident proton were found to increase with the proton energy. The response ratio of H LET to [H*(10)] was found to be in the range of 0.15–0.3 with an average 0.20 ± 0.09.

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Acknowledgments

The authors are thankful to all the staff members of BARC-TIFR pelletron accelerator facility for their support during the irradiation of detectors. Authors sincerely acknowledge the technical cooperation received from Ramjilal, N. G. Ninawe, A. Mahadakar, S. B. Salvi, P. C. Bolar, P. V. Gaudekar, H. Sparrow and M. Ekambram. Continuous encouragement and support from Dr. R. M. Tripathi, Head, HPD, BARC and Dr. K. S. Pradeepkumar, Associate Director, HS and E Group, BARC are highly acknowledged.

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Authors and Affiliations

  1. Health Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    G. S. Sahoo, S. P. Tripathy, S. Paul, D. S. Joshi & T. Bandyopadhyay

  2. Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    S. C. Sharma

  3. Radiological Physics & Advisory Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    S. D. Sharma

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  1. G. S. Sahoo
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  2. S. P. Tripathy
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  3. S. Paul
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  4. S. C. Sharma
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  5. S. D. Sharma
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  6. D. S. Joshi
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  7. T. Bandyopadhyay
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Correspondence to G. S. Sahoo.

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Sahoo, G.S., Tripathy, S.P., Paul, S. et al. Comparison of neutron doses measured by CR-39 via LET spectrometry and neutron rem meter. J Radioanal Nucl Chem 308, 351–355 (2016). https://doi.org/10.1007/s10967-015-4583-6

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  • DOI: https://doi.org/10.1007/s10967-015-4583-6

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