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Optimizing Magnetic Shielding vs. Cryogenics

Optimizing Magnetic Shielding vs. Cryogenics. Configurations ILC (~ 16 000 cavités). Configurations ILC (~10 000 cavités). Configurations ILC (~10 000 cavités). Double Blindage. Double Blindage. Cryonomics.

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Optimizing Magnetic Shielding vs. Cryogenics

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  1. OptimizingMagneticShielding vs. Cryogenics

  2. Configurations ILC (~16 000 cavités)

  3. Configurations ILC (~10 000 cavités)

  4. Configurations ILC (~10 000 cavités)

  5. Double Blindage

  6. Double Blindage

  7. Cryonomics • If I am allowed to extrapolate the 75% increase of Q0 shown by E. Kako with a double magnetic shielding, to ILC cavities with Eacc = 31.5 MV/m • and with the assumptions: grid power = 0,15 € /kWh@300 K • CoP(2K) = 700 W/W • magnetic shield = 1000€ / cavity • cryogenics = 1 M€/100 W@2K Pdyn. = 5.5 kW@2K , 3.8 MW Pdyn. = 9.6 kW@2K , 6.7 MW @ 300 K € € Q0 = 8 1010(RDR ) Q0 = 1.4 1010 O. Napoly

  8. Magnetic Shielding Produced by MecaMagneticfromAperam/Cryophy 1mm sheets Magneticshields are qualified by the excellent dynamiccryogenic performance of XM-3

  9. 2. cw and lp operation; 3 experiments c. Dynamic heat load for Large Grain Cryomodule XM-3 cavities: vertical tests at 2K (7 Large Grain +1 Fine Grain cavity) Measured dynamic heat load J. Sekutowicz, Towards More Flexibility in Operation of the XFEL Linac, DESY, October 25th, 2013

  10. Conclusion Increasing Q0 of ILC cavities by whatevermeans, isGREEN Bettermagneticshieldingis one possible cost efficient way.

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