Adjustable tuner HENRY PRZYBILSKI PIERREALAIN LEROY SUMMARY 1

Adjustable tuner HENRY PRZYBILSKI / PIERRE-ALAIN LEROY

SUMMARY 1. IPHI - feedback 2. Adjustable tuner 1. Mechanical studies 1. Design 2. Positioning range 2. Thermal studies 3. Problems 3. R&D 1. Welding / brazing 2. Fatigue 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 2

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law RF Tuning procedure 1. Measure the depth of the « tuner » in the cavity 2. Measure the length of the « final » tuner 3. Machining the setting shim 4. Assembly 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 3

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law IPHI - RF Tuning procedure 1. Measure the depth of the « tuner » in the cavity 2. Measure the length of the « final » tuner 3. Machining the setting shim 4. Assembly Test tuner Final tuner 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY Setting shim Assembly | PAGE 4

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law IPHI - RF Tuning procedure 1. Measure the depth of the « tuner » in the cavity 2. Measure the length of the « final » tuner 3. Machining the setting shim 4. Assembly Test tuner Final tuner 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY Setting shim Assembly | PAGE 5

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law IPHI - RF Tuning procedure 1. Measure the depth of the « tuner » in the cavity 2. Measure the length of the « final » tuner 3. Machining the setting shim 4. Assembly Test tuner Final tuner 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY Setting shim Assembly | PAGE 6

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law IPHI - RF Tuning procedure 1. Measure the depth of the « test » tuner in the cavity 2. Measure the length of the « final » tuner 3. Machining the setting shim 4. Assembly Test tuner Final tuner 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY Setting shim Assembly | PAGE 7

IPHI - FEEDBACK Main purpose of the tuner: Ideal voltage law IPHI - RF Tuning procedure Disadvantages: 1. Using of 2 different tools 2. Machining of the setting shim 3. Measurement reading error + machining tolerance Ø Lower risks / time saving 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 8

ADJUSTABLE TUNER MECHANICAL STUDIES Design Hydraulic connections Nut Cooling system Slide Welding process (TIG / EB / LASER ? ) Brazing Copper/Stainless Steel Brazing Copper / Copper Guide Flange Bellows baseplate RF joint Tuner body 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 9

ADJUSTABLE TUNER MECHANICAL STUDIES Design Hydraulic connections Nut Cooling system Slide Welding process (TIG / EB / LASER ? ) Brazing Copper/Stainless Steel Brazing Copper / Copper Guide Flange Bellows baseplate RF joint Tuner body 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 10

ADJUSTABLE TUNER MECHANICAL STUDIES Design Hydraulic connections Nut Cooling system Guide Slide Welding process (TIG / EB / LASER) Flange Pa Brazing Copper/Stainless Steel Brazing Copper / Copper Bellows baseplate Vacuum RF joint Tuner body 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 11

ADJUSTABLE TUNER MECHANICAL STUDIES Design Hydraulic connections Nut Cooling system Slide Welding process (TIG / EB / LASER? ) Brazing Copper/Stainless Steel Brazing Copper / Copper Guide Flange Bellows baseplate RF joint Tuner body 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 12

ADJUSTABLE TUNER MECHANICAL STUDIES Positioning Range Maximum range = 60 mm IN OUT 38 22 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 13

ADJUSTABLE TUNER THERMAL STUDIES The mechanical design includes thermal studies to reduce the pressure drop and to ease the flow circulation. d Shape 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 14

ADJUSTABLE TUNER PROBLEMS Bellows supplier has no experience in putting a bellows in a brazing oven. The thermal treatment will reduce the life-cycle by a factor 2. It means 5. 000 cycles instead of 10. 000. There are 2 kinds of bellows: Stainless Steel Inconel Price Cheap Expensive Heat resistance No Yes Brazing process Known* Unknown* Welding process Stainless Steel – Known* Stainless Steel – Unknown* Inconel – Known* 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY *Known / Unknown by the CEA | PAGE 15

R&D BRAZING AND WELDING TESTS Tests on both type of bellows • Brazing Inconel / Copper • Welding Stainless Steel / Inconel • TIG welding process • Electron Beam welding process • Laser welding process 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 16

R&D FATIGUE TESTS Tests on both type of bellows Fatigue tests after brazing process • 100 cycles • Leak detection ~100 cycles • Deformation Inconel Welding test Stainless Steel 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 17

CONCLUSION New design We need to qualify: • Material • Welding procedure Ø R&D Thank you for your attention. 8/9 -Dec-15 CDR 2 - Mechanical integration - H. PRZYBILSKI / P-A. LEROY | PAGE 18