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      https://www.ias.ac.in/article/fulltext/pram/075/04/0675-0682

    • Keywords

       

      R134a; superheated emulsion; chlorafluorocarbon; nucleation efficiency; hydrogen; gamma.

    • Abstract

       

      Superheated emulsion detector is known to detect neutrons, γ-rays and other charged particles. The present work includes the study of nucleation efficiency of super-heated drops of one of the CFC-free liquids, R134a (C2H2F4), to fast neutrons, its response to 𝛾-rays from 241Am and 137Cs and compare its nucleation efficiency with that of R12. The observation indicates that because of the presence of hydrogen, the nucleation efficiency is less in R134a than in R12 in the present neutron energy range of considera-tion. R134a is one of the most environment-friendly, commercially available liquid that is suitable for superheated drop detector, specially in neutron dosimetry and one needs to investigate it in detail.

    • Author Affiliations

       

      Mala Das1 R Sarkar2 P K Mondal2 S Saha1 B K Chatterjee2 S C Roy3

      1. NAP Division, Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India
      2. Department of Physics, Bose Institute, 93/1 A.P.C. Road, Kolkata 700 009, India
      3. Indian Science News Association, 92 A.P.C. Road, Kolkata 700 009, India
    • Dates

       
  • Pramana – Journal of Physics | News

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