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Reliability at Super FRS

Reliability at Super FRS. Eugen Momper, GSI Review on Cryogenics at FAIR 27. / 28. February 2012. Reliability at Super FRS. Accelerator HERA. Reliability at Super FRS. Chain of Magnets. Reliability at Super FRS. Chain of Magnets

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Reliability at Super FRS

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  1. Reliability at Super FRS Eugen Momper, GSI Review on Cryogenics at FAIR 27. / 28. February 2012

  2. Reliability at Super FRS Accelerator HERA

  3. Reliability at Super FRS • Chain of Magnets

  4. Reliability at Super FRS • Chain of Magnets • The Peripheral systems are almost more complex then the magnet itself.

  5. Reliability at Super FRS What means MTBF? 10 several pieces 1. Jear 1. Failure

  6. Reliability at Super FRS 10 several pieces 1. Jear 1. Failure 2. Jear 2. Failure replaced peace

  7. Reliability at Super FRS 10 several pieces 1. Jear 1. Failure 2. Jear 2. Failure 3. Jear 3. Failure 4. Jear 4. Failure replaced peace 10. Jear 10. Failure MTBF = 10 Y

  8. Reliability at Super FRS failure rate high averige failure rate low t estimated lifetime burn in time failure rate = 1/MTBF

  9. Reliability at Super FRS

  10. Reliability at Super FRS For knowing the failure rate at FAIR site we have to add the failure rates of parts using without irradiation and the failure rate measured by testing with the test dose. λFAIR =λManufacturer + λIrradiationTest or 1/MTBFFAIR = 1/MTBFManufacturer + 1/MTBFIrradiationTest

  11. Reliability at Super FRS Irradiation test

  12. Reliability at Super FRS Irradiation test Tested after irradiation • 1 failure per 10 pieces • Dose equivalent 20 Years of use • MTBFIrradiationTest = 200Y

  13. Reliability at Super FRS Creating a table to consider the reliability Effect of failure: Result of a failure will be a lower efficiency, more power consumption ore more maintenance effort; the result will never be an instability of the machine (0) Result of a failure will be a instability of the Machine; the run has to be stopped. (1)

  14. Reliability at Super FRS

  15. Reliability at Super FRS

  16. Reliability at Super FRS

  17. Reliability at Super FRS Construction requirements: • When ever practicable, an assembly has to be constructed replaceable • Cernox sensors for level indication or for regulations has to use in 3 or more redundant systems on different places for a high reliability Development requirements: • We need a more detailed simulation for the radiation in and near the magnets • For redundant regulation systems, we need a analyse of fail risk for the complete system • We need the irradiation tests to assure the reliability • We have to consider more detaills in the calculation

  18. Reliability at Super FRS Thank you for your attention

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