From available mqtl cold data to fidel reference tables
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From available MQTL cold data to FIDEL reference tables PowerPoint PPT Presentation


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From available MQTL cold data to FIDEL reference tables. W. Venturini Delsolaro FIDEL meeting 22/2/2007. Available and missing cold data. All Q6 measured with Single Stretch Wire (integral TF of 6 MQTL in series) Single MQTL assemblies in SM18 SSS520, SSS532 (SSW)

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From available MQTL cold data to FIDEL reference tables

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From available mqtl cold data to fidel reference tables

From available MQTL cold data to FIDEL reference tables

W. Venturini Delsolaro

FIDEL meeting 22/2/2007


Available and missing cold data

Available and missing cold data

  • All Q6 measured with Single Stretch Wire (integral TF of 6 MQTL in series)

  • Single MQTL assemblies in SM18

    • SSS520, SSS532 (SSW)

    • SSS521, SSS525 with horizontal shaft; in total 8 modules that should be used for the w/c correlation of the TF

  • 13 MQTL modules and 2 twin apertures measured at cold in the vertical cryostats: shaft is slightly shorter than magnetic length, relative values match SM18 data after scaling

  • Geometric, Saturation and Magnetization contributions should come from the above, for TF and harmonics

  • Magnetization at low current, minor hysteresis loops: some data exist. More experimental and modeling work is necessary

    We expect no decay (was partially checked), but ramp effects needs to be measured, by the way…

    on current ramps, remember to take into account the parallel resistors, giving a

    (also true for other correctors)


Strategy

Strategy

TF: Warm data available for all magnets. Infer the geometric component from w/c correlation based on SSW data.

Use generic values for the magnetization and the saturation components, computed from Block 4 data

Same for the “ramp” component, data still to be collected

Harmonics: w/c correlations can be based on the whole set of data (Block 4 + SM18)


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