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Design and evaluation of a TNA explosive-detection system to screen carry-on luggage

Tavakkoli Farsoni, A ; Sharif University of Technology | 2001

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  1. Type of Document: Article
  2. DOI: 10.1023/A:1010640728221
  3. Publisher: 2001
  4. Abstract:
  5. Thermal neutron analysis (TNA) technology has been used for the non-destructive detection of explosives. The system uses a relatively weak 252Cf neutron source (1.03.107 n/s) and two 3″3×″ NaI(Tl) detectors. The presence of explosives is confirmed via detection of the 10.83 MeV prompt gamma-ray associated with nitrogen decay. The MCNP4A code was used to simulate the neutron and gamma transport through the system. The thermal neutron flux in the activation position was measured using gold and indium foils. The measured thermal neutron flux was lower, by not more than 9.5%, than that of simulation. In this report the results of the preliminary tests on the system are described
  6. Keywords:
  7. Accuracy ; Radiation detector ; Neutron radiation ; Law enforcement ; Gamma radiation ; Forensic science ; Conference paper ; Analytic method
  8. Source: Journal of Radioanalytical and Nuclear Chemistry ; Volume 248, Issue 3 , 2001 , Pages 695-697 ; 02365731 (ISSN)
  9. URL: https://link.springer.com/article/10.1023/A:1010640728221