Feasibility Study of Time-of-Flight Compton Scatter Imaging Using Picosecond Length X-Ray Pulses
By measuring the time of flight of scattered X-ray photons, the point of interaction, assuming a single scatter, can be determined, providing 3-D information about an object under inspection. This paper describes experimental ToF Compton scatter measurements conducted at the versatile electron linea...
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| Veröffentlicht in: | IEEE transactions on nuclear science 2014-12, Vol.61 (6), p.3701-3710 |
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| container_title | IEEE transactions on nuclear science |
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| creator | Calvert, Nick Betcke, Marta M. Deacon, Alick N. Gleeson, Anthony J. Hill, Clive McIntosh, Peter A. Mitchell, Lawrence O. Morton, Edward J. Ollier, James Procter, Mark G. Speller, Robert D. |
| description | By measuring the time of flight of scattered X-ray photons, the point of interaction, assuming a single scatter, can be determined, providing 3-D information about an object under inspection. This paper describes experimental ToF Compton scatter measurements conducted at the versatile electron linear accelerator (VELA), a picosecond pulsewidth electron source situated in Daresbury, U.K. The ToF of scattered X-ray photons was measured using a CeBr3 detector, and a full width at half maximum (FWHM) of between 29 and 36 cm was achieved with a 5-cm-thick plastic test object. By implementing a low-energy cutoff, the FWHM was reduced to between 12 and 26 cm. Two test objects placed in series with a 50-cm space between were separable in the data after applying the low energy cutoff. |
| doi_str_mv | 10.1109/TNS.2014.2367239 |
| format | Article |
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This paper describes experimental ToF Compton scatter measurements conducted at the versatile electron linear accelerator (VELA), a picosecond pulsewidth electron source situated in Daresbury, U.K. The ToF of scattered X-ray photons was measured using a CeBr3 detector, and a full width at half maximum (FWHM) of between 29 and 36 cm was achieved with a 5-cm-thick plastic test object. By implementing a low-energy cutoff, the FWHM was reduced to between 12 and 26 cm. 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This paper describes experimental ToF Compton scatter measurements conducted at the versatile electron linear accelerator (VELA), a picosecond pulsewidth electron source situated in Daresbury, U.K. The ToF of scattered X-ray photons was measured using a CeBr3 detector, and a full width at half maximum (FWHM) of between 29 and 36 cm was achieved with a 5-cm-thick plastic test object. By implementing a low-energy cutoff, the FWHM was reduced to between 12 and 26 cm. 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| subjects | Cargo security Deconvolution Elastic scattering Electron sources Image analysis Inspection Low energy Photons Scatter Spatial resolution Three dimensional time of flight (ToF) X-ray imaging X-ray scattering X-rays |
| title | Feasibility Study of Time-of-Flight Compton Scatter Imaging Using Picosecond Length X-Ray Pulses |
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