jlab overview cryomodule results · 2004-01-28 · \\fs1\proj_mgmnt\presentations 1-rode_04_1-21...
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SNS Linac 1\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
JLab Overview &
Cryomodule Results
C. H. RODEJLAB Senior Team Leader
January 21, 2004
SNS Linac 2\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
Outline
• JLab scope
• 1-Oct-03 Cryomodule Snapshot
• 15-Jan-04 Cryomodule Snapshot
• FY04 & 05 JLab High Level Plan
• J. Mammosser: MB Cavity qualification and string assembly sequence
SNS Linac 3\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
SNS Deliverables• 2 year R&D Program
• 11 Medium beta 3-cavity cryomodules
• 12 High beta 4-cavity cryomodules
– Feb-01 to Aug-03 high gradient development program (Epeak = 27.5 =>35.0 MV/m) for high beta cryomodules
• 120 g/sec Central Helium Liquefier
• Dual tee shaped transfer lines
• SRF 5 cryomodules/yr. facility – design only
90.8% complete (1-Jan-04)
SNS Linac 4\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
SNS Medium Beta Cryomodule
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FY03 MB Cavity Qualification Problems
1. 3 month poor cavity performance (Mar – May 03)2. High reject rate (Jan – Aug 03)
3. Component qualification and cryomodule testing delayed due to 1 MW RF system availability
4. Production interruptions due to equipment failures and Mother Nature
5. Very little correlation exists between CW VTA test and pulsed cryomodule test
6. $70K/month cost variance
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SNS Medium Beta CM & Vertical Dewar Testing Eacc @ Qo = 5*10**9
0
2
4
6
8
10
12
14
16
18
20
1-Nov-02
1-Dec-02
1-Jan-03
31-Jan-03
3-Mar-03
2-Apr-03
3-May-03
2-Jun-03
3-Jul-03 2-Aug-03
2-Sep-03
2-Oct-03
2-Nov-03
2-Dec-03
2-Jan-04
Eacc
EaccA. Spec.Min. S.Max. S.MB1MB2MB3MB4MB5MB6MB7MB8MB9MB10MB11RejectCM
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VTA Cavity Qualification
0
1
2
3
4
5
6
7
8
Nov-02
Dec-02
Jan-03
Feb-03
Mar-03
Apr-03
May-03
Jun-03
Jul-03
Aug-03
Sep-03
Oct-03
Nov-03
Dec-03
Jan-04
Feb-04
Mar-04
#
HB EP Pass
HB BCP Pass
MB Pass
Requirement
HPRFailure
Hurri-caneIsabel
Includes 3 Cavities that required retesting due to follow up
SNS Linac 8\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
MB Cavity Performance CM vs VTA
0
2
4
6
8
10
12
14
16
18
0 2 4 6 8 10 12 14 16 18
VTA MV/m
CM
MV/
m
INITIAL TEST
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1 MW RF System
• 1 MW RF fifth & sixth failure with this klystron
– Operating with solenoid ground fault – repair plan exists
– Operating with klystron water leak – pressure dependent
SNS Linac 10\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
FY04 Problems
• 17-Sep Hurricane Restart– 4 weeks to restart
• 15-Nov HPR pump failure– 2 weeks off
• 15-Jan HPR pump failure– 2 weeks off
SNS Linac 11\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
Cryomodule Production Status
M-1-6 CM – in tunnel position #2 thru #7
M-7 CM – vacuum leak
M-8 CM – assembled
M-9 CM – being assembled
M-10, 11 Cavities qualified
H1 Cavities qualified
H-2,3 Cavities being qualified
H-4,5,6 Cavities being prepped
H-7,8 Cavities being incoming inspected
SNS Linac 12\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
Cryomodules in SNS Tunnel
SNS Linac 13\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
Cryomodules M4, thru M8 & FEL3
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SNS M7 Cryomodule in Cave
SNS Linac 15\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
SNS Medium Beta CM Eacc @ Qo = 5*10**9
0
2
4
6
8
10
12
14
16
18
20
1-Nov-02
1-Dec-02
1-Jan-03
31-Jan-03
3-Mar-03
2-Apr-03
3-May-03
2-Jun-03
3-Jul-03
2-Aug-03
2-Sep-03
2-Oct-03
2-Nov-03
2-Dec-03
2-Jan-04
Eacc
A. Spec.
Min. S.
Max. S.
CM
VTA Qualifications Date
SNS Linac 16\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
Cryomodule M4, M5, M6 Test Results
109
1010
1011
0 5 10 15 20
MBspecHBspecM4-01M4-02M4-03M5-01M5-02M5-03M6-01M6-02M6-03
Eacc
SNS Linac 17\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
MB Cavity Performance CM vs VTA
0
2
4
6
8
10
12
14
16
18
0 2 4 6 8 10 12 14 16 18
VTA MV/m
CM
MV/
m
SNS Linac 18\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
JLab Superconducting Conclusions
• Cryomodule– Cavity qualification is currently >1 months ahead of plan
new procedure 86% success– MB cavity string assembly is currently at ~15 days/CM– Cryomodule assembly efficiency is steadily improving;
currently at ~35 days/CM (2 rails)
• Refrigeration– All hardware has been delivered to ORNL; installation
>99%– Check out and commissioning:
– Screw compressors: operational– 4.5K Cold box: purification Feb– 2.1K Cold box: cold compressors installed
SNS Linac 19\\Fs1\Proj_Mgmnt\Presentations 1-Rode_04_1-21 Berlin
CM Assembly
9
21
33
45
57
69
81
17-O
ct-03
31-O
ct-03
14-Nov-0
328
-Nov-03
12-D
ec-03
26-D
ec-03
9-Jan
-0423
-Jan-04
6-Feb-0
420
-Feb
-045-M
ar-04
19-M
ar-04
2-Apr-0
416
-Apr-0
430
-Apr-0
414
-May
-0428
-May
-0411
-Jun-04
25-Ju
n-049-J
ul-04
23-Ju
l-04
6-Aug-04
20-A
ug-04
3-Sep
-0417-S
ep-04
1-Oct-0
415
-Oct-
0429
-Oct-
0412
-Nov-0
426-N
ov-04
10-D
ec-04
24-D
ec-04
7-Jan
-0521
-Jan-05
Cav
ity #
5
8
11
14
17
20
23
Cavity PlanCavity ActualStrings Plan Strings ActualCM PlanCM ActualsMB CM #
NOW
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