scholarly journals Report on Field Test at INL Cask Farm of Single Detector Fast Neutron Spent Fuel Cask Verification System

2021 ◽  
Author(s):  
P Kerr ◽  
S Sitaraman ◽  
J Sanders ◽  
E Seabury ◽  
C Wharton
Keyword(s):  
Fast Neutron ◽  
Field Test ◽  
Spent Fuel ◽  
Verification System ◽  
Single Detector

Research on the Control System of Thorium-Based Long-Life Core

2008 ◽  
Author(s):  
Ganglin Yu ◽  
Kan Wang
Keyword(s):  
Control System ◽  
Fast Neutron ◽  
Neutron Spectrum ◽  
Control Unit ◽  
Spent Fuel ◽  
Control Rod ◽  
Final Design ◽  
Long Life ◽  
High Control ◽  
Fast Neutron Spectrum

In the thorium-based long-life reactor, the thorium-spent fuel plutonium mixed fuel and lead-bismuth coolant are used to design a fast neutron spectrum core. This paper studies the control system in the long-life core and gets some useful conclusion. The control system includes two parts: the central control rod and a peripheral control unit that surrounds the core. The paper studies the thickness of the absorber, which influences the neutron absorb capability and economy, and gives the relation between the thickness and the reactivity. A peripheral reflector is used in most small fast neutron spectrum critical equipment to control the reactivity. The paper discusses the absorber mode and the reflector mode in peripheral control unit design. The paper gives the final design details of the control system in the thorium-based long-life core reactor. The control system has high control efficiency and achieves the requirement of the long-life core.

Investigation of fast neutron emission of spent fuel assemblies with CR-39 track etch detector

1995 ◽  
Vol 25 (1-4) ◽  
pp. 695-698 ◽  
Author(s):  
N.C. Tam ◽  
K. Baricza ◽  
I. Pavlicsek ◽  
L. Lakosi
Keyword(s):  
Fast Neutron ◽  
Neutron Emission ◽  
Spent Fuel ◽  
Fuel Assemblies ◽  
Track Etch

Development and Test of Spent Fuel Verification System Using a Scintillating Glass Fiber

2006 ◽  
Author(s):  
Il-Jin Park ◽  
Gil Hoon Ahn ◽  
Jong-Soo Kim ◽  
Jeong-Soo Kim ◽  
Kwang-Ok Ko ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Spent Fuel ◽  
Verification System

scholarly journals A Design Study of the Parallel-Slit Ring Collimator for Fast Neutron Emission Tomography of Spent Fuel

2018 ◽  
Author(s):  
Paul Hausladen ◽  
Anagha S. Iyengar ◽  
Lorenzo Fabris ◽  
Jinan Yang ◽  
Jianwei Hu
Keyword(s):  
Fast Neutron ◽  
Neutron Emission ◽  
Emission Tomography ◽  
Spent Fuel ◽  
Design Study ◽  
Parallel Slit

Voids in Irradiated Tungsten and Molybdenum

1969 ◽  
Vol 27 ◽  
pp. 190-191
Author(s):  
Robert C. Rau ◽  
Robert L. Ladd
Keyword(s):  
Melting Point ◽  
Fast Neutron ◽  
Neutron Irradiation ◽  
Elevated Temperatures ◽  
Irradiation Temperature ◽  
The Body ◽  
Face Centered Cubic ◽  
Body Centered Cubic ◽  
Cubic Metals ◽  
Face Centered

Recent studies have shown the presence of voids in several face-centered cubic metals after neutron irradiation at elevated temperatures. These voids were found when the irradiation temperature was above 0.3 Tm where Tm is the absolute melting point, and were ascribed to the agglomeration of lattice vacancies resulting from fast neutron generated displacement cascades. The present paper reports the existence of similar voids in the body-centered cubic metals tungsten and molybdenum.

Weak Beam Imaging and Diffraction Studies of Stacking Faults in Silicon

1976 ◽  
Vol 34 ◽  
pp. 590-591
Author(s):  
T. Y. Tan ◽  
W. K. Tice
Keyword(s):  
Fast Neutron ◽  
Rapid Determination ◽  
Stacking Faults ◽  
Imaging Method ◽  
Large Reduction ◽  
Dislocation Loops ◽  
Fringe Spacing ◽  
Weak Beam ◽  
Kinematical Theory

In studying ion implanted semiconductors and fast neutron irradiated metals, the need for characterizing small dislocation loops having diameters of a few hundred angstrom units usually arises. The weak beam imaging method is a powerful technique for analyzing these loops. Because of the large reduction in stacking fault (SF) fringe spacing at large sg, this method allows for a rapid determination of whether the loop is faulted, and, hence, whether it is a perfect or a Frank partial loop. This method was first used by Bicknell to image small faulted loops in boron implanted silicon. He explained the fringe spacing by kinematical theory, i.e., ≃l/(Sg) in the fault fringe in depth oscillation. The fault image contrast formation mechanism is, however, really more complicated.

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