An estimation method of the spatial resolution for magnifying fast neutron radiography
Source abstract
Abstract
Fast neutron radiography (FNR) using divergent neutron beams has the characteristic to magnify small cracks in low-Z materials. For such magnifying FNR systems, a simple method was developed using Monte Carlo simulations to estimate the spatial resolution. The resolution degrading factors, including neutron source size, object thickness, and crosstalk in the detector, have been investigated in this method. The calculated results of this method compare favorably to independent estimations of various designs for the same FNR system. For a magnifying FNR system, a better spatial resolution can be expected with larger magnifications and smaller sources.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Nuclear Physics and Applications · Radiation Detection and Scintillator Technologies · Particle Detector Development and Performance
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Laser Fusion Center of Chinese Academy of Engineering Physics , Mianyang 621900, China
References (30)
Show source-provided references
1. Proc. SPIE · 2013 · 8710 · 22910.1117/12.2018095 ↗
2. Multi-frame energy-selective imaging system for fast-neutron radiography10.1109/tns.2009.2014950 ↗
3. Development of Cold Neutron Radiography Facility (CNRF) based on China Mianyang Research Reactor (CMRR)10.1016/j.nima.2019.163063 ↗
4. Photographic detection of fast neutrons: Application to neutron radiography10.1088/0031-9155/10/4/302 ↗
5. A. L. Swift, “The design of a fast neutron radiography system for non-destructive analysis of thick, dense objects,” Ph.D. dissertation (University of Tennessee, 2016).
6. Review: Radiography with neutrons10.1007/bf00551079 ↗
7. Neutron tomography of axially symmetric objects using 14 MeV neutrons from a portable neutron generator10.1063/1.4890662 ↗
8. Development of an experimental setup for in situ visualization of lyophilization using neutron radiography and computed tomography10.1063/1.5126927 ↗
9. A powerful pulsed “point-like” neutron source based on the high-current ECR ion source10.1063/1.5128639 ↗
10. Sample container for high-resolution neutron imaging of spent nuclear fuel cladding sections10.1063/1.5143226 ↗
11. Improvement in the spatial resolution for imaging with fast neutrons10.1016/j.nima.2020.164809 ↗
12. Quantifying spatial resolution in a fast neutron radiography system10.1016/j.nima.2022.166331 ↗
13. Fast neutron radiography and tomography at a 10 MW research reactor beamline10.1016/j.apradiso.2016.10.012 ↗
14. Fast neutron resonance radiography in a pulsed neutron beam
15. Conceptual design for a neutron imaging system for thick target analysis operating in the 10–15 MeV energy range10.1063/1.52470 ↗
16. An accelerator system for neutron radiography10.1063/1.1395498 ↗
17. Combined gamma-ray and energy-selective neutron radiography at CSNS10.1016/j.nima.2019.163200 ↗
18. A study on the feasibility of fast neutron imaging using the D-D fusion neutrons of the KSTAR tokamak10.1016/j.nima.2019.162579 ↗
19. Development of high-energy neutron imaging for use in NDE applications10.1063/1.1302076 ↗
20. High-energy neutron imaging development at LLNL
21. Recent results in the development of fast neutron imaging techniques10.1063/1.1395500 ↗
22. First polar direct-drive exploding-pusher target experiments on the Shenguang laser facility10.1088/1674-1056/ab37f4 ↗
23. High yield polar direct drive fusion neutron sources at the National Ignition Facility10.1088/1741-4326/abe4e6 ↗
24. Fusion energy output greater than the kinetic energy of an imploding shell at the National Ignition Facility10.1103/physrevlett.120.245003 ↗
25. Fast neutron radiography with DT neutron generator
26. Simulation and design of a fast neutron radiography detector based on MCP10.1088/1748-0221/13/05/p05034 ↗
27. High-frame rate imaging of two-phase flow in a thin rectangular channel using fast neutrons10.1016/j.apradiso.2014.03.023 ↗
28. Comparison of the performance of different converters for neutron radiography and tomography using fission neutrons10.1016/j.nima.2009.01.129 ↗
29. Fast neutron resonance radiography for elemental imaging: Theory and applications10.1109/tns.2002.801696 ↗
30. Detector concept for neutron tomography in the 10-15 MeV energy range