Exotic sources of x-rays for iodine K-edge angiography
Digital Subtractive Angiography (DSA) has been performed to image human coronary arteries using wiggler radiation from electron storage rings. The significant medical promise of this procedure motivates the development of smaller and less costly x-ray sources. Several exotic sources are candidates for consideration, using effects such as Cherenkov, channeling, coherent bremsstrahlung, laser backscattering, microundulator, parametric, Smith-Purcell, and transition radiation. In this work we present an analysis of these effects as possible sources of intense x-rays at the iodine K-edge at 33.169 key. The criteria we use are energy, efficiency, flux, optical properties, and technical realizability. For each of the techniques, we find that they suffer either from low flux, a low energy cutoff, target materials heating, too high electron beam energy requirement, optical mismatch to angiography, or a combination of these. We conclude that the foreseeable state-of-the-art favors a compact storage ring design.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 10136564
- Report Number(s):
- SLAC-PUB-6341; SLAC/SSRL-0055; CONF-930824-32; ON: DE94009016; TRN: 94:006624
- Resource Relation:
- Conference: Synchrotron radiation instrumentation,Gaithersburg, MD (United States),23-26 Aug 1993; Other Information: PBD: Aug 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinematics of Compton backscattering x-ray source for angiography
Kinematics of Compton backscattering x-ray source for angiography