A dual-energy linac cargo inspection system

Zavadtsev, A.; Zavadtsev, D.; Krasnov, A.; Sobenin, N.; Kutsaev, S.; Churanov, D.; Urbant, M.
March 2011
Instruments & Experimental Techniques;Mar2011, Vol. 54 Issue 2, p241
Academic Journal
X-ray inspection systems for cargo containers, capable of performing Z analysis, are an actively evolving type of equipment for cargo inspections [1-3]. A linear electron accelerator with fast energy tuning, operating in the mode of interlacing low- and high-energy electron pulses, has been developed for use in such a system. The output electron energy in this accelerator can vary in the range of 3-15 MeV under software control. An X-ray radiographic image of a container is obtained in a monoenergetic mode with a beam energy of 9 MeV. Pulses with energies of 4 and 9 MeV are used to recognize materials inside a container (i.e., perform Z analysis). The standing-wave linear electron accelerator operates at a frequency of 2856 MHz, its pulse repetition frequency with different energies is 240 Hz, the pulse duration is 10 μs, and the beam energy in each pulse is >10 J.


Related Articles

  • Dispersive XAFS Image Radiograph by Parametric X-ray Radiation. Mori, Akira; Hayakawa, Yasushi; Sato, Isamu; Tanaka, Toshinari; Hayakawa, Ken; Kuwada, Takao; Kobayashi, Koji; Ohshima, Hisashi // AIP Conference Proceedings;2007, Vol. 879 Issue 1, p1841 

    The parametric X-ray (PXR) generator system at Laboratory for Electron Beam Research and Application (LEBRA) in Nihon University is a variable-wavelength and quasi-monochromatic X-ray source, which was developed as one of the advance applications of the 125-MeV electron linear accelerator. Since...

  • Intense Photoneutron Sources For Nuclear Material Detection. Gozani, Tsahi; Shaw, Timothy; King, Michael // AIP Conference Proceedings;6/1/2011, Vol. 1336 Issue 1, p696 

    Intense neutron sources are essential for cargo inspection for a broad range of threats from explosives, to contraband, to nuclear materials and especially SNM (Special Nuclear Materials). To be effective over a wide range of cargo materials, in particular for hydrogenous cargo such as food, and...

  • A whole-system approach to x-ray spectroscopy in cargo inspection systems. Langeveld, Willem G. J.; Gozani, Tsahi; Ryge, Peter; Sinha, Shrabani; Shaw, Tim; Strellis, Dan // AIP Conference Proceedings;Apr2013, Vol. 1525 Issue 1, p690 

    The bremsstrahlung x-ray spectrum used in high-energy, high-intensity x-ray cargo inspection systems is attenuated and modified by the materials in the cargo in a Z-dependent way. Therefore, spectroscopy of the detected x rays yields information about the Z of the x-rayed cargo material. It has...

  • Intensity-Modulated Advanced X-ray Source (IMAXS) for Homeland Security Applications. Langeveld, Willem G. J.; Johnson, William A.; Owen, Roger D.; Schonberg, Russell G. // AIP Conference Proceedings;3/15/2009, Vol. 1099 Issue 1, p628 

    X-ray cargo inspection systems for the detection and verification of threats and contraband require high x-ray energy and high x-ray intensity to penetrate dense cargo. On the other hand, low intensity is desirable to minimize the radiation footprint. A collaboration between HESCO/PTSE Inc.,...

  • Database of High-Z Signatures in Cargo. Bentley, Ron // Homeland Security Affairs;May2012 Supplement, Vol. 8, p26 

    Results from comprehensive testing of two prototype dual-energy (6 and 9 MeV) cargo inspection systems provide large databases of signature information of various high atomic number objects (active interrogation benchmarks) hidden in representative cargos. Test objects were fabricated from lead,...

  • Emerging X-ray Applications. Reed, William A. // Quality;Aug2008, Vol. 47 Issue 8, Special section p18 

    The article discusses the emerging X-ray applications and trends in high-energy X-ray nondestructive testing. It states that nondestructive and inspection using high-energy X-ray technology, also known as high-energy radiography, has begun in the 1950s with the first commercially linear...

  • X-ray Optics Research for Linac Coherent Light Source: Interaction of Ultra-short X-ray Pulses with Matter. Kuba, Jaroslav; Wootton, Alan; Bionta, Richard M.; Shepherd, Ronnie; Fill, Ernst E.; Dunn, James; Smith, Raymond F.; Ditmire, Todd; Dyer, Gilliss; London, Richard A.; Shlyaptsev, Vyacheslav N.; Bajt, Sasa; Feit, Michael D.; Levesque, Rick; McKernan, Mark; Conant, Ronald H. // AIP Conference Proceedings;2002, Vol. 641 Issue 1, p596 

    Free electron lasers operating in the 0.1 to 1.5 nm wavelength range have been proposed for the Stanford Linear Accelerator Center (USA) and DESY (Germany). The unprecedented brightness and associated fluence predicted for pulses <300 fs pose new challenges for optical components. A criterion...

  • X-ray generation from slanting laser-Compton scattering for future energy-tunable Shanghai Laser Electron Gamma Source. Luo, W.; Xu, W.; Pan, Q.; Cai, X.; Chen, Y.; Fan, G.; Li, Y.; Liu, W.; Lin, G.; Ma, Y.; Shen, W.; Shi, X.; Xu, B.; Xu, J.; Xu, Y.; Zhang, H.; Yan, Z.; Yang, L.; Zhao, M. // Applied Physics B: Lasers & Optics;Dec2010, Vol. 101 Issue 4, p761 

    There is great interest in the generation of energy-tunable, bright, short-pulse X/ γ-ray sources, which are required in various research fields. Laser-Compton scattering (LCS) is considered to be one of the most promising methods to implement this kind of X/ γ-ray source. At the 100-MeV...

  • BreastSimulator: A software platform for breast x-ray imaging research. Bliznakova, Kristina; Sechopoulos, Ioannis; Buliev, Ivan; Pallikarakis, Nicolas // Journal of Biomedical Graphics & Computing;Jun2012, Vol. 2 Issue 1, p1 

    Objective: It is well established that computer based models of x-ray imaging systems are basic and very important tools for developing and evaluating new emerging x-ray imaging techniques, optimizing technical parameters, and performing feasibility studies prior to implementation in clinical...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics