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T2.4 Performance

T2.4 Performance. Test Running in R78. Timeline. T2.4 installed in R76 09-11-2010 First inspection on 16-11-2010 after 200k pulses Little or no wear/dust seen Target restarted and run for another 400k 2 nd inspection 23-11-2010 Total pulses at inspection 615k.

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T2.4 Performance

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  1. T2.4 Performance Test Running in R78

  2. Timeline • T2.4 installed in R76 09-11-2010 • First inspection on 16-11-2010 after 200k pulses • Little or no wear/dust seen • Target restarted and run for another 400k • 2nd inspection 23-11-2010 • Total pulses at inspection 615k

  3. 1stinspection – Top Bearing

  4. 1st inspection – Top Shaft

  5. 1st inspection bottom of shaft Dust Catcher No material visible in this region

  6. T2.4 2ndInspection – Top Bearing

  7. Top Bearing close up Small amount of Material on side of flat

  8. Top Shaft wear surface Smudge of material on wear area of shaft

  9. Bottom Shaft Dust Catcher No material visible in this region

  10. Odd deposit on top of Stator?

  11. Run 2 Minimum Position Some changes seen Min BCD has drifted upwards over time. Pulse to pulse Variability approx. 0.8mm still well within what is acceptable for MICE Thanks to Ed for new DAQ plots

  12. Run 2 Acceleration Acceleration is flat. Variability acceptable. Note that we think we understand difference between old and new DAQ acceleration values.

  13. Comments • No significant wear/dust after 600k pulses • No new wear seen on 2nd inspection • Was wear seen on 16th “bedding in” ? • Next inspection on 31-11-2010 • Should be over 1 million pulses on clock

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