Related Experiment Video
Updated: Feb 15, 2026

Measurements of Soil Carbon by Neutron-Gamma Analysis in Static and Scanning Modes
Published on: August 24, 2017
Evaluation of gamma contribution in a neutron calibration field of Am-Be241 source
Thiem Ngoc Le1, Hoai-Nam Tran2, Thang Duc Duong1
1Institute for Nuclear Science and Technology - VINATOM, 179 Hoang Quoc Viet, Hanoi, Vietnam.
Abstract:
The paper presents the evaluation of gamma contribution in a neutron calibration field of a 241Am-Be source. The characterization of gamma flux spectra and gamma ambient dose equivalent rates has been performed using a portable NaI(Tl) gamma spectrometer. For obtaining the gamma ambient dose equivalent rates from the measured spectra, two approaches were applied based on the applications of the G(E) function and the ICRP 74 conversion factors, respectively. Comparison of the gamma ambient dose equivalent rates obtained from the two approaches shows an agreement within 5%. The gamma contribution in the neutron calibration field is evaluated about 2.3-3.3% of the total neutron ambient dose equivalent rate in the distance range of 100-250cm.
More Related Videos
Related Concept Videos
Glassware Calibration
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Binet's Contribution to Measures of Intelligence
Wechsler's Contribution to Measures of Intelligence
Calibration Curves: Correlation Coefficient
Plotting and Calibrating the Root Locus
The maximum gain occurs at the breakaway points between open-loop poles on the real axis, while the minimum gain is...

