Optical Diagnostics In The Advanced Test Accelerator (ATA) Environment

Y. P. Chong; J. P. Cornish; D. Donnelly

doi:10.1117/12.940688

6 October 1987 Optical Diagnostics In The Advanced Test Accelerator (ATA) Environment

Y. P. Chong, J. P. Cornish, D. Donnelly

Proceedings Volume 0787, Optical Techniques for Sensing and Measurement in Hostile Environments; (1987) https://doi.org/10.1117/12.940688
Event: 1987 Technical Symposium Southeast on Optics, Electro-Optics, and Sensors, 1987, Orlando, FL, United States

Abstract

The ATA is a 50-MeV, 10-kA, 70-ns pulsed electron beam accelerator that generates an extremely harsh environment for diagnostic measurements. Diagnostic targets placed in the beamline are subject to damage, frequently being destroyed by a single pulse. High radiation (x-ray, gamma, and neutron) and electromagnetic interference levels preclude placing components near the beamline that are susceptible to radiation damage. Examples of such components are integrated circuit elements, hydrocarbons such as Teflon insulation, and optical components that darken, resulting in transmission loss. Optical diagnostics play an important part in measuring experimental parameters such as the beam current density profile. A large number of optical lines of sight (LOS) are routinely deployed along the experimental beamlines that use the AlA beam. Gated TV cameras are located outside the accelerator tunnel, because the tunnel is inaccessible during operations. We will describe and discuss the difficulties, problems, and solutions encountered in making optical measurements in the ATA environment.

Citation Download Citation

Y. P. Chong, J. P. Cornish, and D. Donnelly "Optical Diagnostics In The Advanced Test Accelerator (ATA) Environment", Proc. SPIE 0787, Optical Techniques for Sensing and Measurement in Hostile Environments, (6 October 1987); https://doi.org/10.1117/12.940688

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