High-bandwidth multichannel fiber optic system for measuring gamma rays

Conference · Sun Jul 01 04:00:00 EDT 1984

OSTI ID:6891922

Roeske, F; Smith, D E; Pruett, B L; Reedy, R P

We describe an analog fiber optic gamma-ray diagnostic system that can transmit signals through fiber cables 600 to 700 m long with a system bandwidth exceeding 1 GHz and measure the relative timing between signals to within 0.3 ns. Gamma rays are converted to visible light via the Cerenkov process in a short length of a radiation-resistant optical fiber. A graded-index optical fiber transmits this pulse to a recording station where the broadened pulse is compensated for material dispersion and recorded using a streak camera. The streak camera can simultaneously record 20 to 30 data channels on a single piece of film. The system has been calibrated using electron linear accelerators and fielded on two experiments.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6891922
• Report Number(s): UCRL-90497; CONF-840872-6; ON: DE84014526
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CALIBRATION
CHERENKOV RADIATION
DETECTION
ELECTROMAGNETIC RADIATION
EXPLOSIONS
FIBER OPTICS
GAMMA DETECTION
NUCLEAR EXPLOSIONS
PERFORMANCE
PHOTOGRAPHY
RADIATION DETECTION
RADIATIONS
STREAK PHOTOGRAPHY