Current Status of cerl Injector Cryomodule

Transcription

1 Current Status of cerl Injector Cryomodule E. Kako, Y. Kondo, S. Noguchi, T. Shishido, K. Watanabe, Y. Yamamoto (KEK, Japan) 1

2 Outline Overview of Injector Cryomodule 2-cell Cavities HOM RF Feedthroughs CW Input Couplers Injector Cryomodule Schedule Summary 2

3 Injector Cryomodule for cerl 5K Panel 5K Duct Vacuum Vessel 5K Panel 80K Shield 2K He Jacket 2K Gas Return Pipe 3 Input Coupler 5K Support 80K Base-plate e - 2-cell Cavity HOM Coupler & RF Feedthrough

4 Key Components for Injector Cryomodule Three 2-cell Cavities Six CW Input Couplers 4 Fifteen HOM Couplers Fifteen RF Feedthroughs

5 Main Specification for Injector Cryomodule (Q L /coupler, P rf /coupler, I beam = 10 ma, E beam = 5 MeV) Cavity - I Cavity - II Cavity - III Cavity #3 cavity #4 cavity #5 cavity 5 Input coupler Operational gradient Loaded Q (Q L ) Required RF Power #3 & #4 couplers 6.5 MV/m (1.5 MV) #5 & #6 couplers 11 MV/m (2.5 MV) #7 & #8 coupler 11 MV/m (2.5 MV) 10 x x x kw 20 kw 20 kw (#1 cavity, #2 cavity, #1 & #2 couplers : Prototype)

6 Cavity Vertical Tests Results (Final) 6

7 RF Feedthroughs with HOM pick-up antenna Type-0 (i.c: Kovar, o.c: Kovar) Type-I (i.c: Mo, o.c: Kovar) 7 Type-II (i.c: Mo, o.c: Cu) Type-II m (i.c: Mo, o.c: Cu) male pin

8 RF Conditioning of CW Input Couplers Prototype (#1&#2) Couplers 8

9 Collaboration on CW Input Couplers between HZB/TRIUMF/KEK 9 Oliver Kugeler (HZB) Amiya Mitra (TRIUMF) Takako Miura (KEK-RF) April, 10 th ~ 13 th, 2012 : (4 days)

10 Conditioning Results of CW Input Couplers (1) #7 & #8 Couplers Day 1 Day 2 5 Hz 10 µs 30 µs 5 Hz 100 µs 0.5 ms 2 ms Day 3 5 Hz 2 Hz 1 Hz Day 4 Total conditioning time 10 ms 50 ms 200 ms CW = 18 hours 10

11 Conditioning Results of CW Input Couplers (2) #7 & #8 Couplers Day 3 Day 4 5 Hz 2 Hz 1 Hz CW 40 kw 10 ms 50 ms 200 ms Duty = 5 % 10 % 20 % CW 11

12 Conditioning Results of CW Input Couplers (3) #3 & #4 Couplers #5 & #6 Couplers 5 Hz 2 Hz 1 Hz 10 ms 50 ms 200 ms CW 30 kw CW 35 kw CW CW 12

13 Further Improvement for efficient cooling Inner conductor Outer conductor Water cooling channel Water cooling jacket Thermal Calculation by ANSYS 13

14 High Pressure Gas Inspection by KHK December 21 st, 2011 January 25 th, MPa x 4.0 = 0.52 MPa (water) He Panel : 0.13 MPa x 1.50 = 0.2 MPa (water) 2-cell Cavity : 0.13 MPa x 1.25 = 0.17 MPa (He gas)

15 Assembly Check at Factory, MHI-Kobe March 23 rd,

16 Assembly of cerl-injector Cryomodule (1) April 3 rd, two-cell cavities with He jacket Base-plate for cavity support April 12 th,

17 Assembly of cerl-injector Cryomodule (2) Okada (K-Vac) Watanabe (KEK) Hitomi (MHI) Imada (NAT) April 19 th, Type-II m

18 Assembly of cerl-injector Cryomodule (3) April 23 rd, Beam tubes 2 Bellows 18

19 Assembly of cerl-injector Cryomodule (4) April 25 th, Input couplers 19

20 Temperature Measurement System Total : 96 Sensors 48 Cernox 12 Pt-Co 36 CC 20

21 Schedule of cerl-injector Cryomodule (1) KEK 納入 Replace of Couplers Coupler processing (#7 & #8, long) A. Mitra (TRIUMF) & O. Kugeler (HZB) April, 2012 Dismount of couplers Cleaning of vac. parts Exchange of HOM feedthroughs Attachment of Beam pipes, Pumping, LT 30 G.W. Holidays Attachment of 6 couplers Pumping, Leak check, Ar slow leak CR 内作業完了 21

22 Schedule of cerl-injector Cryomodule (2) May, /29 4/30 G.W. Holidays Tuner assembly, HOM filter meas. Alignment of 3 Cavities 21 5K パネル設置 真空容器 KEK 納入 Connection of 2K pipe line, LT Attachment of HOM anchors Connection of 5K pipe line, LT Temperature sensors, Heaters, RF cables Connection of 80K pipe line, LT Attachment of thermal anchors, RF & monitor cables 22

23 Schedule of cerl-injector Cryomodule (3) June, 2012 真空容器内への空洞挿入作業完了 Alignment of 3 Cavities & Vacuum Vessel Connection of 2K, 5K, 80K pipe line, Leak tests Temperature sensors, Heaters, RF & Monitor cables Thermal shields & anchors SI, Close of port flanges Pumping of Vacuum Vessel, Leak tests & Pressure test Attachment of Endplates, Pumping system, Gate Valves 29 入射部への移動 設置完了 23

24 SUMMARY Tests of key components (cavities, RFfeedthroughs, input couplers) had successfully finished. Assembly of injector cryomodule was just started. Completed injector cryomodule will be installed in the beam line in the end of June,

25 END Thank you for your attentions.. 25