Cost-effective segmented scintillating converters for hard x rays

Stefan A. Vasile; Jeffrey S. Gordon; Mikhail B. Klugerman; Vivek V. Nagarkar; Michael R. Squillante; Gerald Entine; Scott A. Watson; Todd J. Kauppila

doi:10.1117/12.245127

19 July 1996 Cost-effective segmented scintillating converters for hard x rays

Stefan A. Vasile, Jeffrey S. Gordon, Mikhail B. Klugerman, Vivek V. Nagarkar, Michael R. Squillante, Gerald Entine, Scott A. Watson, Todd J. Kauppila

Author Affiliations +

Proceedings Volume 2859, Hard X-Ray/Gamma-Ray and Neutron Optics, Sensors, and Applications; (1996) https://doi.org/10.1117/12.245127
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

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

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available