scholarly journals Characterization of a Neutron Beam Following Reconfiguration of the Neutron Radiography Reactor (NRAD) Core and Addition of New Fuel Elements

2016 ◽  
Vol 48 (1) ◽  
pp. 200-210 ◽  
Author(s):  
Aaron E. Craft ◽  
Bruce A. Hilton ◽  
Glen C. Papaioannou
Keyword(s):  
Neutron Beam ◽  
Neutron Radiography ◽  
Fuel Elements

scholarly journals Neutron Beam Characterization at Neutron Radiography (NRAD) Reactor East Beam Following Reactor Modifications

2021 ◽  
Vol 5 (2) ◽  
pp. 8
Author(s):  
Sam H. Giegel ◽  
Aaron E. Craft ◽  
Glen C. Papaioannou ◽  
Andrew T. Smolinski ◽  
Chad L. Pope
Keyword(s):  
Energy Spectrum ◽  
Neutron Flux ◽  
Neutron Beam ◽  
Neutron Energy ◽  
Neutron Radiography ◽  
Neutron Energy Spectrum ◽  
Neutron Beams ◽  
Cadmium Ratio ◽  
Foil Activation

The Neutron Radiography Reactor at Idaho National Laboratory (INL) has two beamlines extending radially outward from the east and north faces of the reactor core. The control rod withdrawal procedure has recently been altered, potentially changing power distribution of the reactor and thus the properties of the neutron beams, calling for characterization of the neutron beams. The characterization of the East Radiography Station involved experiments used to measure the following characteristics: Neutron flux, neutron beam uniformity, cadmium ratio, image quality, and the neutron energy spectrum. The ERS is a Category-I neutron radiography facility signifying it has the highest possible rank a radiography station can achieve. The thermal equivalent neutron flux was measured using gold foil activation and determined to be 9.61 × 106 ± 2.47 × 105 n/cm2-s with a relatively uniform profile across the image plane. The cadmium ratio measurement was performed using bare and cadmium-covered gold foils and measured to be 2.05 ± 2.9%, indicating large epithermal and fast neutron content in the beam. The neutron energy spectrum was measured using foil activation coupled with unfolding algorithms provided by the software package Unfolding with MAXED and GRAVEL (UMG). The Monte-Carlo N-Particle (MCNP6) transport code was used to assist with the unfolding process. UMG, MCNP6, and measured foil activities were used to determine a neutron energy spectrum which was implemented into the MCNP6 model of the east neutron beam to contribute to future studies.

Characterization of pulsed (plasma focus) neutron source with image plate and application to neutron radiography

2013 ◽  
Author(s):  
Sanjay Andola ◽  
Ram Niranjan ◽  
A. M. Shaikh ◽  
R. K. Rout ◽  
T. C. Kaushik ◽  
...  
Keyword(s):  
Neutron Source ◽  
Plasma Focus ◽  
Neutron Radiography ◽  
Pulsed Plasma ◽  
Image Plate

Characterization of unsaturated diffusivity of tight sandstones using neutron radiography

2018 ◽  
Vol 124 ◽  
pp. 693-705 ◽  
Author(s):  
Yixin Zhao ◽  
Shanbin Xue ◽  
Songbai Han ◽  
Linfeng He ◽  
Zhongwei Chen
Keyword(s):  
Neutron Radiography

scholarly journals Development of a Neutron Imaging Station at the n_TOF Facility of CERN and Applications to Beam Intercepting Devices

Instruments ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 32 ◽  
Author(s):  
Federica Mingrone ◽  
Marco Calviani ◽  
Claudio Torregrosa Martin ◽  
Oliver Aberle ◽  
Michael Bacak ◽  
...  
Keyword(s):  
Neutron Beam ◽  
Neutron Radiography ◽  
Beam Line ◽  
Neutron Imaging ◽  
Experimental Results ◽  
Detection Systems ◽  
Experimental Area ◽  
Shortest Distance ◽  
Antiproton Production ◽  
Imaging Setup

A neutron radiography testing station has been developed exploiting the neutron beam of CERN’s n_TOF Experimental Area 2, located at the shortest distance to the neutron producing-target. The characteristics of the n_TOF neutron beam for the imaging setup are presented in this paper, together with the obtained experimental results. The results focused on the testing of several particle producing targets, including a spent antiproton production targets as well as targets from two different HiRadMat’s experiments. The possible developments of neutron imaging capabilities of the n_TOF facility in terms of detection-systems and beam-line upgrades are as well outlined.

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