22 January 1982 Preparation, Installation, And Calibration Of A 152 Fiber Imaging Experiment At The Nevada Test Site
Author Affiliations +
Proceedings Volume 0296, Fiber Optics in Adverse Environments I; (1982); doi: 10.1117/12.932447
Event: 25th Annual Technical Symposium, 1981, San Diego, United States
Abstract
Fiber-optic transmission lines are being used with increasing frequency in the demanding environment of nuclear device diagnostic tests at the Nevada Test Site. Previous reports have described diagnostic experiments that utilize properties of fiber-optic cables to provide capabilities that are extremely difficult to obtain with coaxial cable systems.1 This paper describes an imaging experiment conducted during the last quarter of 1980 at the Nevada Test Site involving 152 -0.6-km long GI fibers in 18 cables. An imager cell sensitive to neutron and gamma radiation was located at -8 m from the source. Individual elements of the fluor were coupled by -10 m PCS fibers (for radiation damage resistance) to the GI fibers used for the uphole and surface lines to the detector station. Light from the imager cell in a 9-nm band, centered at 540 nm, was detected by photomultipliers and the electrical signals then recorded on oscilloscopes. Overall system bandwidth, including the fluor, was -80 MHz. Due to the complexity of the experiment and the conditions associated with field testing, the PCS and GI fibers were cut and terminated under laboratory shop conditions prior to installation at the field site. Procedures used for quality assurance of the fiber assemblies as well as procedures used in checking fiber throughput during installation are described. The application of a large star coupler (5 input x 200 output fibers) used for system time and amplitude calibration and an attempt to "shutter" fibers with neutrons for a multiplexing application are also discussed.
© (1982) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
D. R. Thayer, P. B. Lyons, L. D. Looney, J. P. Manning, R. M. Malone, "Preparation, Installation, And Calibration Of A 152 Fiber Imaging Experiment At The Nevada Test Site", Proc. SPIE 0296, Fiber Optics in Adverse Environments I, (22 January 1982); doi: 10.1117/12.932447; https://doi.org/10.1117/12.932447
PROCEEDINGS
4 PAGES


SHARE
KEYWORDS
Imaging systems

Calibration

Camera shutters

Fiber optics

Graded index fibers

Stars

Fiber optics tests

RELATED CONTENT

A 100 Mhz Fiber Optic Single Transient Gamma Ray Detection...
Proceedings of SPIE (December 26 1984)
Calibration system for sub-100-ps relative timing
Proceedings of SPIE (March 11 1987)
Developments Of Optical Fast-Gated Imaging Systems
Proceedings of SPIE (February 01 1985)
Gated SIT Vidicon Streak Tube
Proceedings of SPIE (January 14 1986)

Back to Top