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Title: GAMMA SPECTRUM STABILIZATION FOR ENVIRONMENTAL RADIATION MONITORING STATIONS USING NAI(TL) DETECTOR

Journal Article · · Radiation Protection Dosimetry
 [1];  [1];  [2];  [3];  [3];  [4];  [5];  [6]
  1. Military Institute of Chemical and Environmental Engineering, Hoai Duc, Hanoi 100000, Vietnam
  2. Hanoi University of Science and Technology, 01 Dai Co Viet, Hanoi 100000, Vietnam
  3. Dalat Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat 670000, Vietnam
  4. NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
  5. Faculty of Physics, University of Education, Hue University, Hue 530000, Vietnam
  6. Institute of Research and Development, Duy Tan University, Da Nang 550000, Vietnam
+ Show Author Affiliations

Abstract Gamma spectrum measured by an NaI(Tl) detector is known to be unstable with the in situ temperature. In the present work, an advanced method has been applied to stabilize the gamma spectrum measured by the NaI(Tl) detector at environmental radiation monitoring (ERM) stations. The method is based on experimental data obtained under controlled conditions in laboratory. In the temperature range from 4 to 45°C, the relative deviation of the peak positions within the stabilized gamma spectrum is less than 2%. To test this method in a real scenario, it has been integrated into the ERM station at the Military Institute of Chemical and Environmental Engineering in Hanoi, Vietnam. The results show that the proposed method is ready for a real application.

Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
43/HD-DHH; 634/2017/HDKHCN
OSTI ID:
1602309
Journal Information:
Radiation Protection Dosimetry, Journal Name: Radiation Protection Dosimetry Vol. 189 Journal Issue: 1; ISSN 0144-8420
Publisher:
Oxford University PressCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (8)

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Application of spectrum shifting methodology to restore NaI(Tl)-recorded gamma spectra, shifted due to temperature variations in the environment journal January 2016
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Temperature peak-shift correction methods for NaI(Tl) and LaBr3(Ce) gamma-ray spectrum stabilisation journal August 2012
Temperature behavior of NaI(Tl) scintillation detectors
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  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 607, Issue 2 https://doi.org/10.1016/j.nima.2009.02.019
journal August 2009
Nuclear Data Sheets for A = 152 journal September 1996
Development and characterization of scintillation based detectors for the use in radiological early warning networks journal February 2016
Stabilizing scintillation detector systems with pulsed LEDs: a method to derive the LED temperature from pulse height spectra journal December 2005

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