MICE RFCC Module Update MICE CM 28 in

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MICE RFCC Module Update MICE CM 28 in Sofia, Bulgaria October 5, 2010 Allan

MICE RFCC Module Update MICE CM 28 in Sofia, Bulgaria October 5, 2010 Allan De. Mello Lawrence Berkeley National Laboratory

MICE RFCC Module Update Overview • RFCC Module MICE RFCC Module Update – MICE

MICE RFCC Module Update Overview • RFCC Module MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 2

MICE RFCC Module Update Overview • RF Cavities • RF Cavity Frequency Tuners •

MICE RFCC Module Update Overview • RF Cavities • RF Cavity Frequency Tuners • Single Cavity Vacuum Vessel • RF Cavity Be Windows • Cavity RF Coupler • RFCC Schedule MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 3

RF Cavity Fabricator - Applied Fusion, Inc. • Applied Fusion has completed fabrication of

RF Cavity Fabricator - Applied Fusion, Inc. • Applied Fusion has completed fabrication of the second five cavities and they are ready to be delivered to LBNL MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 4

RF Cavity Physical Measurement • Second five cavities will be physically inspected at LBNL

RF Cavity Physical Measurement • Second five cavities will be physically inspected at LBNL MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 5

RF Cavity Frequency Measurement • RF frequency measurements for the second five cavities will

RF Cavity Frequency Measurement • RF frequency measurements for the second five cavities will begin soon MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 6

RF Cavity Frequency Adjustments Press from outside • Cavities must be “tuned” to each

RF Cavity Frequency Adjustments Press from outside • Cavities must be “tuned” to each other for best center frequency (10 cavities) by plastic deformation if necessary (will be done at LBNL) • A 12 ton press has been acquired for adjusting the frequency • Design for fixturing has been started Push from Inside MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 7

RF Cavity Electro-polish • The inside surface of each cavity needs to be electropolished

RF Cavity Electro-polish • The inside surface of each cavity needs to be electropolished 398 Railroad Ct. , Milpitas CA 95035 • Local (San Francisco Bay Area) electro-polishing company has been identified • Advanced Electropolishing has the test cavity and is working out the fixturing needed to electropolish the inside MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 8

RF Cavity Frequency Tuner Components • Dual – action actuator • Actuator is screwed

RF Cavity Frequency Tuner Components • Dual – action actuator • Actuator is screwed into the tuner arm • Tuner/actuators are thermally independent of the vacuum vessel • Flexure tuner arm • Fixed connection to cavity MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 9

6 Actuator Assemblies • 6 actuator mechanical components (except bellows) are being fabricated and

6 Actuator Assemblies • 6 actuator mechanical components (except bellows) are being fabricated and assembled at LBNL MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 10

RF Cavity Tuner Control System • Emerson ER 3000 electronic pressure controllers – one

RF Cavity Tuner Control System • Emerson ER 3000 electronic pressure controllers – one for each side of the actuator • Two pressure controllers for 6 actuators Actuator • Control system components have been assembled into a working system with one actuator and will be adapted for 6 actuators MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 11

RF Cavity and Frequency Tuner • Prototype tuner/actuator mounted on cavity MICE RFCC Module

RF Cavity and Frequency Tuner • Prototype tuner/actuator mounted on cavity MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 12

Design idea from past presentations • Rectangular steel tubing concept for supporting a single

Design idea from past presentations • Rectangular steel tubing concept for supporting a single cavity was presented at previous collaboration meetings • Testing of the cavity support hexapod strut arrangement • Testing 6 frequency tuners with real frequency measurements MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 13

Single RF Cavity Vacuum Vessel • Side section view • Complete single cavity assembly

Single RF Cavity Vacuum Vessel • Side section view • Complete single cavity assembly • Vessel front cover removed MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 14

Single RF Cavity Vacuum Vessel • Struts for suspending the cavities inside the vacuum

Single RF Cavity Vacuum Vessel • Struts for suspending the cavities inside the vacuum vessel are currently being fabricated at LBNL MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 15

Single RF Cavity Vacuum Vessel • Single RF cavity vacuum vessel will be used

Single RF Cavity Vacuum Vessel • Single RF cavity vacuum vessel will be used at Fermi. Lab • Analysis of vessel has begun with detail drawings to follow • This assembly will provide testing and validation of the assembly procedure MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 16

Single RF Cavity Vacuum Vessel • Single cavity vacuum vessel superimposed between the magnet

Single RF Cavity Vacuum Vessel • Single cavity vacuum vessel superimposed between the magnet coils 82 cm 79 cm • Single RF cavity vacuum vessel will potentially be used in a 3 T large bore magnet to perform RF breakdown test measurements in a magnetic field at CERN in support of the MTA at FNAL or in support of MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 17

RF Cavity Beryllium Windows • Cavity Be windows are being fabricated by Brush Wellman

RF Cavity Beryllium Windows • Cavity Be windows are being fabricated by Brush Wellman Inc. • LBNL has received nine finished windows MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 18

Cavity RF Coupler Section view of cavity RF coupler • Toshiba RF window MICE

Cavity RF Coupler Section view of cavity RF coupler • Toshiba RF window MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 19

Toshiba RF Window • 10 Toshiba windows have been ordered • All metric design

Toshiba RF Window • 10 Toshiba windows have been ordered • All metric design MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 20

Cavity RF Coupler Future Work • Myat RF couplers need to be purchased •

Cavity RF Coupler Future Work • Myat RF couplers need to be purchased • Prototype of the outer coax will be fabricated to verify assembly method • Vendor selection process will be started MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 21

Schedule Summary MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan

Schedule Summary MICE RFCC Module Update – MICE CM 28 in Sofia, Bulgaria Allan De. Mello - Lawrence Berkeley National Lab – October 5, 2010 Page 22

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