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

Autor: K. R. Crandall, C. C. Cappiello, Ronald A. Krauss, Samual Dean Gardner, M. P. Dugan, James M. Potter, C.L. Hollas, R.E. Morgado, R.W. Hamm, C.A. Goulding, B. L. Berman
Rok vydání: 1994
Předmět:
Zdroj: Substance Detection Systems.
ISSN: 0277-786X
DOI: 10.1117/12.171268
Popis: 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.© (1994) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze: OpenAIRE