Translator Disclaimer
19 July 1996 Cost-effective segmented scintillating converters for hard x rays
Author Affiliations +
Abstract
Thick segmented scintillating converters coupled to optical imaging detectors offer the advantage of large area, high stopping power sensors for high energy x-ray digital imaging. The recent advent of high resolution and solid state optical sensors such as amorphous silicon arrays and CCD optical imaging detectors makes it feasible to build large, cost effective imaging arrays. This technology, however, shifts the sensor cost burden to the segmented scintillators needed for imaging. The required labor intensive fabrication of high resolution, large area hard x- ray converters results in high cost and questionable manufacturability on a large scale. We report on recent research of a new segmented x-ray imaging converter. This converter is fabricated using vacuum injection and crystal growth methods to induce defect free, high density scintillating fibers into a collimator matrix. This method has the potential to fabricate large area, thick segmented scintillators. Spatial resolution calculations of these scintillator injected collimators show that the optical light spreading is significantly reduced compared to single crystalline scintillators and sub-millimeter resolution x- ray images acquired with the segmented converter coupled to a cooled CCD camera provided the resolution to characterize the converter efficiency and noise. The proposed concept overcomes the above mentioned limitations by producing a cost-effective technique of fabricating large area x-ray scintillator converters with high stopping power and high spatial resolution. This technology will readily benefit diverse fields such as particle physics, astronomy, medicine, as well as industrial nuclear and non-destructive testing.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefan A. Vasile, Jeffrey S. Gordon, Mikhail B. Klugerman, Vivek V. Nagarkar, Michael R. Squillante, Gerald Entine, Scott A. Watson, and Todd J. Kauppila "Cost-effective segmented scintillating converters for hard x rays", Proc. SPIE 2859, Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications, (19 July 1996); https://doi.org/10.1117/12.245127
PROCEEDINGS
8 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

A study of EM failure in a micro scale Pb...
Proceedings of SPIE (September 11 2014)
Focal spot deconvolution using convolutional neural networks
Proceedings of SPIE (February 28 2019)
PbI2 for high-resolution digital x-ray imaging
Proceedings of SPIE (October 05 1999)
Two-bent-crystal schemes for monochromatic x-ray imaging
Proceedings of SPIE (September 17 1995)
X-Ray tomography with micrometer spatial resolution
Proceedings of SPIE (October 23 1997)

Back to Top