Availability Analysis of the Superhilac Accelerator.

Abstract

Records of 26 months of operating, repairing, and maintaining the nuclear accelerator Superhilac at the Lawrence Berkeley Laboratory (LBL) are analyzed with respect to system availability and reliability. A major portion of the report is devoted to building a suitable model for the availability analysis. Some specific recommendations for improvement are also given. The current availabilities for operating the machine in modes 1, 2, and 3 are 64.8%, 76.9%, and 80% respectively. The Adam injector is most responsible for causing the current low availability level of Mode 1. An increase of 15 hours on top of the current MTBF of 22.74 hours for the Adam injector (or, a decrease of about 2 hours from its current MTTR of 5.15 hours) would result in an overall boost of 5.6% for Mode 1 availability. Either way, this would translate into about 6 more usable hours every 4 days of operations for Mode 1. Also included are system reliability and miscellaneous findings from Time Series Analysis and Total Time on Test Plots.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1977
Accession Number
ADA047742

Entities

People

  • Richard E. Barlow
  • Tom Y. Liang

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Computer Programs
  • Computers
  • Data Analysis
  • Downtime
  • Fault Tree Analysis
  • Frequency
  • Instrumentation
  • Maintenance
  • Operations Research
  • Optimization
  • Probability
  • Radio Frequency
  • Random Variables
  • Reliability
  • Statistical Analysis
  • Time Series Analysis
  • United States

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