Physics of nanosecond pulsed fast neutron analysis (PFNA) applications to non intrusive inspection - a paper in memory of Zdzislaw Piotr Sawa
- Science Applications International Corp., Santa Clara, CA (United States)
The PFNA was conceived by Z.P. Sawa, T. Gozani and P. Ryge, in late 1987 as a means to achieve the highest possible sensitivity for detecting small amounts of explosives concealed in luggage. This could be attained because (1) all the elements present in explosives, i.e., O, N, C (and H, indirectly) can be measured via the (n,n`{gamma}) process with fast neutrons, (2) using ns pulses of neutrons and the time of flight (TOF) technique, a full direct imaging of the elements and hence all present materials can be obtained, and (3) the TOF assures the best signal to background ratio, as the signal-stimulated {gamma}-rays are measured before the background--neutron interacting in the detector environment--arrives. The PFNA technology has made great strides since the autumn of 1987. It enables the detection of narcotics, explosives, hazardous materials and most dutiable goods carried in trucks and containers.
- OSTI ID:
- 199856
- Report Number(s):
- CONF-941129-; TRN: 95:005652-0358
- Resource Relation:
- Conference: 13. international conference on the application of accelerators in research and industry, Denton, TX (United States), 7-10 Nov 1994; Other Information: PBD: 1994; Related Information: Is Part Of Thirteenth international conference on the application of accelerators in research and industry; Duggan, J.L.; Morgan, I.L. [eds.]; PB: 201 p.
- Country of Publication:
- United States
- Language:
- English
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