The upgrading of the cyclic neutron activation analysis facility at the Dalat research reactor

  • Van Doanh HoEmail author
  • Manh Dung Ho
  • Thanh Viet Ha
  • Quang Thien Tran
  • Dong Vu Cao


The cyclic neutron activation analysis (CNAA) facility based on a pneumatic transfer system for short irradiation and rapid counting has recently been upgraded at the Dalat research reactor. The original facility was only designed for single irradiation. Therefore, this work has aimed to upgrade both hardware and software for the cyclic irradiation. In this paper, the upgrading of the facility for CNAA was described. Irradiation time of the facility were calibrated, thereby reducing irradiation time to seconds with precision. The accuracy and sensitivity of CNAA based-on the upgraded facility were assessed by determination of some short-lived nuclides.


Cyclic neutron activation analysis k0-CNAA Dalat research reactor 



The Ministry of Science and Technology (MOST) of Vietnam through a ministerial project coded DTCB-04/15/VNCHN is gratefully acknowledged.


  1. 1.
    Dung HM, Hien PD (2003) The application and development of k0-standardization method of neutron activation analysis at Dalat research reactor. J Radioanal Nucl Chem 257:643–647CrossRefGoogle Scholar
  2. 2.
    Dung HM, Thien TQ, Doanh HV, Sy NT (2016) Determination of multi-element composition of Vietnamese marine sediment and tuna fish by k0-standardized neutron activation analysis. J Radioanal Nucl Chem 309:235–241CrossRefGoogle Scholar
  3. 3.
    Dung HM, Thien TQ, Doanh HV, Vu CD, Sy NT (2016) Quality evaluation of the k0-standardized neutron activation analysis at the Dalat research reactor. J Radioanal Nucl Chem 309:135–143CrossRefGoogle Scholar
  4. 4.
    Ismail SS (2010) A new automated sample transfer system for instrumental neutron activation analysis. J Autom Methods Manag Chem 2010:1–8CrossRefGoogle Scholar
  5. 5.
    Spyrou NM (1981) Cyclic activation analysis: a review. J Radioanal Nucl Chem 61:211–242CrossRefGoogle Scholar
  6. 6.
    Doanh HV, Dung HM, Thien TQ, Sy NT, Dien NN (2016) Combination and optimization of the cyclic NAA modes at the Dalat research reactor for determination of selenium in biological materials using 77mSe. J Radioanal Nucl Chem 309:185–188CrossRefGoogle Scholar
  7. 7.
    Dung HM, Blaauw M, Beasley D, Freitas MC (2012) Development of k0-based cyclic neutron activation analysis for short-lived radionuclides. J Radioanal Nucl Chem 291:485–492CrossRefGoogle Scholar
  8. 8.
    Chung YS et al (2009) Characteristics of a new pneumatic transfer system for a neutron activation analysis at the HANARO research reactor. J Nucl Eng Technol 41:813–820CrossRefGoogle Scholar
  9. 9.
    Westphal GP, Lemmel H (2008) The perfection of loss-free counting. J Radioanal Nucl Chem 276:601–607CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2017

Authors and Affiliations

  • Van Doanh Ho
    • 1
    Email author
  • Manh Dung Ho
    • 1
  • Thanh Viet Ha
    • 2
  • Quang Thien Tran
    • 1
  • Dong Vu Cao
    • 1
  1. 1.Nuclear Research InstituteDalatVietnam
  2. 2.A.T Joint Stock CompanyHo Chi MinhVietnam

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