Effects of proton beam quality on the production of gamma rays for nuclear resonance absorption in nitrogen

Richard E. Morgado; C. C. Cappiello; M. P. Dugan; C. A. Goulding; Samual Dean Gardner; Charles L. Hollas; Barry Louis Berman; Robert W. Hamm; K. R. Crandall; J. M. Potter; Ronald A. Krauss

doi:10.1117/12.171268

28 March 1994 Effects of proton beam quality on the production of gamma rays for nuclear resonance absorption in nitrogen

Richard E. Morgado, C. C. Cappiello, M. P. Dugan, C. A. Goulding, Samual Dean Gardner, Charles L. Hollas, Barry Louis Berman, Robert W. Hamm, K. R. Crandall, J. M. Potter, Ronald A. Krauss

Author Affiliations +

Proceedings Volume 2092, Substance Detection Systems; (1994) https://doi.org/10.1117/12.171268
Event: Substance Identification Technologies, 1993, Innsbruck, Austria

Abstract

We describe a method for performing nuclear resonance absorption with the proton beam from a radio frequency quadrupole (RFQ) linear accelerator. The objective was to assess the suitability of the pulsed beam from an RFQ to image nitrogen relative to that of electrostatic accelerators. This choice of accelerator results in tradeoffs in performance and complexity, in return for the prospect of higher average current. In spite of a reduced resonance attenuation coefficient in nitrogen, we successfully produced 3D tomographic images of real explosives in luggage the first time the unoptimized system was operated. The results and assessments of our initial laboratory measurements are reported.

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Richard E. Morgado, C. C. Cappiello, M. P. Dugan, C. A. Goulding, Samual Dean Gardner, Charles L. Hollas, Barry Louis Berman, Robert W. Hamm, K. R. Crandall, J. M. Potter, and Ronald A. Krauss "Effects of proton beam quality on the production of gamma rays for nuclear resonance absorption in nitrogen", Proc. SPIE 2092, Substance Detection Systems, (28 March 1994); https://doi.org/10.1117/12.171268

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