Title :
Fiber optics in the BNL booster radiation environment
Author_Institution :
Brookhaven Nat. Lab., Upton, NY, USA
Abstract :
The booster instrumentation uses analog and digital fiber-optic links, designed to withstand at least 50 krads without performance degradation. The links use inexpensive and commercially available components that operate at a center wavelength of 820 nm. The analog link operates at 30 MHz over a 200-m fiber and can provide insertion gain. The digital link provides 60-ns timing pulses without the dispersive effects of coaxial cables. The optical fiber is a step-index hard clad silica type with a 200- mu m core. Component selection criteria, link design, installation, testing and performance for the optical links in the Booster instrumentation systems are presented.<>
Keywords :
optical links; particle beam diagnostics; proton accelerators; synchrotrons; 200 m; 30 MHz; 820 nm; BNL booster radiation environment; Booster instrumentation systems; analog fibre-optic links; analog link; booster instrumentation; coaxial cables; digital fiber-optic links; insertion gain; installation; link design; performance degradation; step-index hard clad silica; testing; timing pulses; Coaxial cables; Degradation; Dispersion; Instruments; Optical fiber cables; Optical fiber testing; Optical fibers; Optical pulses; Silicon compounds; Timing;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164680
