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Analysis of a Prototype Multi-Detector Fast-Neutron Radiography Panel

Journal Article · · Journal of Nondestructive Evaluation
 [1];  [2];  [2];  [2];  [2];  [2];  [2];  [1];  [1]
  1. Y-12 National Security Complex, Oak Ridge, TN (United States)
  2. Univ. of Tennessee, Knoxville, TN (United States)
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A multi-detector fast neutron radiography panel was built using the previous work on scalable neutron radiography using the IDEAS ROSSPAD readout module. A new aluminum housing was built to accommodate a large number of detectors tiled together. Additional changes to startup and processing code were made to operate the detector as one cohesive unit. Spatial resolution of the full panel using Cs-137 gammas was reported to be 0.42 line pairs per centimeter at 90% MTF and 2.09 line pairs per centimeter at 10% MTF. Here, three neutron radiographs generated using a Cf-252 fission neutron source were used to determine the spatial resolution of the panel for neutrons. The experiments had 90% MTF values of 0.24, 0.3, and 0.27 line pairs per centimeter and 10% MTF values of 1.30, 1.46, and 1.40 line pairs per centimeter. An example neutron radiograph was also used to prove that the radiography panel can perform true neutron radiography.
Research Organization:
Oak Ridge Y-12 Plant (Y-12), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0001942
OSTI ID:
2441245
Report Number(s):
IROS108826
Journal Information:
Journal of Nondestructive Evaluation, Journal Name: Journal of Nondestructive Evaluation Journal Issue: 3 Vol. 43; ISSN 0195-9298
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

References (6)

Scalable Detector Design for a High-Resolution Fast-Neutron Radiography Panel journal September 2023
Development of a Small-Aperture Slit System for a High Collimator Ratio at the Thermal Neutron Radiography Facility in JRR-3 journal July 2011
Development of a Portable Pixelated Fast-Neutron Imaging Panel journal June 2022
Characteristics of Protons Exiting from a Polyethylene Converter Irradiated by Neutrons with Energies between 1 keV and 10 MeV journal June 2016
A Fast Neutron Radiography System Using a High Yield Portable DT Neutron Source journal November 2020
A Novel NDT Scanning System Based on Line Array Fast Neutron Detector and D-T Neutron Source journal July 2022

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Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Fast Neutron Radiography
Neutron Counting
Neutron Radiography
Proton Recoil Neutron Radiography
Radiation Imaging
Silicon Photonics