The effects of proton-beam quality on the production of gamma rays for nuclear resonance absorption in nitrogen

Technical Report · Sun May 01 00:00:00 EDT 1994

DOI:https://doi.org/10.2172/10150162· OSTI ID:10150162

Graybill, R ^[1]; Morgado, R E; Cappiello, C C ^[2]

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1. ed.
2. and others

The authors 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 compared to electrostatic accelerators. This choice of accelerator results in trade-offs in performance and complexity, in return for the prospect of higher average current. In spite of a reduced resonance attenuation coefficient in nitrogen, they successfully produced three-dimensional tomographic images of real explosives in luggage the first time the unoptimized system was operated. The results and assessments of the initial laboratory measurements are reported.

• Research Organization: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: Federal Aviation Administration, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 10150162
• Report Number(s): LA-12777-MS; ON: DE94011609; TRN: AHC29411%%70
• Resource Relation: Other Information: PBD: May 1994
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AIRPORTS
SECURITY
CHEMICAL EXPLOSIVES
DETECTION
NITROGEN
RADIATION ABSORPTION ANALYSIS
LINEAR ACCELERATORS
DESIGN
PERFORMANCE
COMPARATIVE EVALUATIONS
GAMMA RADIATION
SPECIFICATIONS
RF SYSTEMS
430100
400101
570000
DESIGN, DEVELOPMENT, AND OPERATION
ACTIVATION, NUCLEAR REACTION, RADIOMETRIC, AND RADIOCHEMICAL PROCEDURES
HEALTH AND SAFETY