XFELX-Ray Free-Electron Laseri

Activité de R&D: vers une cavité RF équipée 'made in France'

Construire une cavité ILC Eacc = 40 MV/m

Q0 = 2e10équipée et testée en cryostat vertical

XFELX-Ray Free-Electron LaseriConfigurations ILC (~16 000 cavités)

XFELX-Ray Free-Electron LaseriConfigurations ILC (~10 000 cavités)

XFELX-Ray Free-Electron LaseriConfigurations ILC (~10 000 cavités)

XFELX-Ray Free-Electron LaseriDouble Blindage

XFELX-Ray Free-Electron LaseriDouble Blindage

Cryonomics

05/12/2011 O. Napoly 7

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 KCoP(2K) = 700 W/Wmagnetic shield = 1000€ / cavitycryogenics = 1 M€/100 W@2K

Q0 = 8 1010 (RDR )

€

Pdyn. = 9.6 kW@2K Pdyn. = 5.5 kW@2K

Q0 = 1.4 1010

€

XFELX-Ray Free-Electron LaseriMagnetic Shielding

28 Novembre 2013

8O. Napoly, Journées ILC, Saclay

Magnetic shields are qualified by the excellent dynamic cryogenic performance of XM-3

Produced by MecaMagnetic from Aperam/Cryophy 1mm sheets

0 4,000,000 8,000,000 12,000,000 16,000,0001E+10

2E+10

3E+10

4E+10

AC114 AC156 AC146 AC154AC157 AC158 AC151 AC152

Eacc [MV/m]

Qo

9J. Sekutowicz, Towards More Flexibility in Operation of the XFEL Linac, DESY, October 25th, 2013

XM-3 cavities: vertical tests at 2K (7 Large Grain +1 Fine Grain cavity)

2. cw and lp operation; 3 experiments c. Dynamic heat load for Large Grain Cryomodule

Measured dynamic heat load

XFELX-Ray Free-Electron Laseri2 K Blankets by Jehier

28 Novembre 2013

O. Napoly, Journées ILC, Saclay 10

XFELX-Ray Free-Electron LaseriProposition de R&D Saclay

Construire une cavité prototype pour l’ILC (et LUNEX5-CW)- cavité 9 cellule 1.3 GHz (SDMS ?) courte pour l’ILC

(collaboration ILC-HiGrade, ou KEK, ou FNAL)- électropolissage vertical (banc Saclay)- nouveau système d’accord CEA-DESY adapté

(collaboration KEK, CERN)- coupleur de puissance (LAL-Orsay)- blindage interne au tank Hélium

(collaboration KEK)- blindage externe (type DESY-XFEL)

Mesurer ses performances dans un cryostat horizontal (CryHoLab) non-blindé:

- à haut gradient 40 MV/m, 1% CU quel Q0, quelle Pcryo ?

- à gradient modéré 15 MV/m, 100 % CU Q0, Pcryo ?