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Proceedings Article

Construction of a ultrananocrystalline diamond-based cold cathode arrays for a flat-panel x-ray source

[+] Author Affiliations
E. J. Grant, C. M. Posada, A. Avachat, C. H. Castano, H. K. Lee

Missouri Univ. of Science and Technology (United States)

R. Divan, A. V. Sumant, D. Rosenmann, L. Stan

Argonne National Lab. (United States)

Proc. SPIE 8709, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII, 87090U (June 7, 2013); doi:10.1117/12.2015846
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From Conference Volume 8709

  • Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII
  • J. Thomas Broach; Jason C. Isaacs
  • Baltimore, Maryland, USA | April 29, 2013

abstract

A novel cold cathode field emission array (FEA) X-ray source based on ultra-nanocrystalline diamond (UNCD) field emitters is being constructed as an alternative for detection of obscured objects and material. Depending on the geometry of the given situation the flat-panel X-ray source could be used in tomography, radiography, or tomosynthesis. Furthermore, the unit could be used as a portable X-ray scanner or an integral part of an existing detection system. UNCD field emitters show great field emission output and can be deposited over large areas as the case with carbon nanotube “forest” (CNT) cathodes. Furthermore, UNCDs have better mechanical and thermal properties as compared to CNT tips which further extend the lifetime of UNCD based FEA. This work includes the first generation of the UNCD based FEA prototype which is being manufactured at the Center for Nanoscale Materials within Argonne National Laboratory with standard microfabrication techniques. The prototype is a 3x3 pixel FEA, with a pixel pitch of 500 μm, where each pixel is individually controllable. © (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

E. J. Grant ; C. M. Posada ; R. Divan ; A. V. Sumant ; D. Rosenmann, et al.
" Construction of a ultrananocrystalline diamond-based cold cathode arrays for a flat-panel x-ray source ", Proc. SPIE 8709, Detection and Sensing of Mines, Explosive Objects, and Obscured Targets XVIII, 87090U (June 7, 2013); doi:10.1117/12.2015846; http://dx.doi.org/10.1117/12.2015846


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