Journal of Radioanalytical and Nuclear Chemistry

, Volume 318, Issue 2, pp 1243–1247 | Cite as

Effect of thermal neutron irradiation at No. 2 channel of Dalat nuclear research reactor on dyed polyvinyl alcohol films

  • Anh Thi VoEmail author
  • Nghiep Dai Tran
  • Giap Van Trinh
  • Son Ngoc Pham


The polyvinyl alcohol (PVA) films dyed with methylene blue were decolorised after they were irradiated in a dose range from 0.059 to 1.411 Gy by thermal neutron source at the end of the channel No. 2 of the Dalat nuclear research reactor. The thermal neutron flux at an outer position of beam line at the channel No. 2 was 1.6 × 106 neutron/cm2 s. The dyed PVA films containing boric acid could be used for improvement physical qualities of the films. Response-curves of the dyed PVA films which were irradiated by the thermal-neutron source were described by the saturated exponential function of the energy transfer model.


Dyed PVA films Response-curves Optical density Methylene blue Dalat nuclear research reactor Thermal- neutron 



The authors would like to acknowledge the Institute for Nuclear Science and Technology, the Nuclear Research Institute and Vietnam Atomic Energy Institute for their support via the project No. KC.05.04/16-20 in this study. The authors express our gratitude to colleagues who made many substantial suggestions for improving this paper.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • Anh Thi Vo
    • 1
    Email author
  • Nghiep Dai Tran
    • 1
  • Giap Van Trinh
    • 1
  • Son Ngoc Pham
    • 2
  1. 1.Institute for Nuclear Science and TechnologyHanoi CapitalVietnam
  2. 2.Nuclear Research InstituteDalatVietnam

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