Paper
21 September 2005 Fast and thermal neutron radiography
Author Affiliations +
Abstract
There is a need for high brightness neutron sources that are portable, relatively inexpensive, and capable of neutron radiography in short imaging times. Fast and thermal neutron radiography is as an excellent method to penetrate high-density, high-Z objects, thick objects and image its interior contents, especially hydrogen-based materials. In this paper we model the expected imaging performance characteristics and limitations of fast and thermal radiography systems employing a Rose Model based transfer analysis. For fast neutron detection plastic fiber array scintllators or liquid scintillator filled capillary arrays are employed for fast neutron detection, and 6Li doped ZnS(Cu) phosphors are employed for thermal neutron detection. These simulations can provide guidance in the design, construction, and testing of neutron imaging systems. In particular we determined for a range of slab thickness, the range of thicknesses of embedded cracks (air-filled or filled with material such as water) which can be detected and imaged.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jay Theodore Cremer, Melvin A. Piestrup, and Xizeng Wu "Fast and thermal neutron radiography", Proc. SPIE 5923, Penetrating Radiation Systems and Applications VII, 59230A (21 September 2005); https://doi.org/10.1117/12.624972
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CITATIONS
Cited by 2 scholarly publications.
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KEYWORDS
Sensors

Scintillators

Modulation transfer functions

Charge-coupled devices

Signal to noise ratio

CCD image sensors

Fiber optics

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