Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B....
-
date post
15-Jan-2016 -
Category
Documents
-
view
215 -
download
0
Transcript of Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B....
![Page 1: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/1.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 1
MICE Cryostat Status
1. Prototype cryostatA. Status & Plans
B. Parts
C. Operating data (supplemental)
2. Four final cryostatsA. Status & Parts left to acquire
B. Assembly area & pictures
C. Schedule
![Page 2: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/2.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 2
Prototype Cryostat Status
Status: Cold, loaded with new cassette #112 in slot 2.
Temperatures and heat loads up slightly from previous operation, but within operating margin (at 60 Hz) cryocooler power.
The trouble may be with cassette #112 construction, but won’t be able to confirm until we warm up and can look at it.
Plans: Staying cold until characterization of #112 is completed.
![Page 3: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/3.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 3
Nomenclature/Parts – stripped down
Invar Envelopes
Clamping bars
Cryocooler with upper and lower cooling stages
Lower Thermal Links
Upper Thermal Links
![Page 4: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/4.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 4
Nomenclature/Parts
Lid
Upper intercept
Lower intercept
Cryocooler
Lower Thermal Links
Upper Thermal Link
G10 stiffener panels
(Copper radiation shield & MLI not installed)
![Page 5: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/5.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 5
Prototype – Recent operating info.
*Heat loads up a bit.Upper CryoCooler temperature 49 K versus 47 KLower CryoCooler temperature 5.9 K versus 5.3 KFrom load map; 58 W & 4.5 W versus 55 W & 4.0 W
*Heat flow across the links up. Q= (K*A/L) ΔTUpper link ΔT = 8.5 K versus 7 KLower link ΔT = 0.21 K versus 0.13 K
*Cassette Temperatures up. (9.0 K req) 105: 7.8 K versus 7.5 K#112: 8.2 K versus #111: 7.1 K
ΔT
![Page 6: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/6.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 6
Prototype – Recent operating info.
*Cassette 112 upper bulkhead 3 F colder – implies higher heat load down the upper part of cassette.
#112: 69 F#105: 72 FLid temp = 70 F
I suspect foam is missing from upper. I think foam in lower is there.
![Page 7: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/7.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 7
Four final Cryostats: Status
All parts here except:Invar envelopes: Promised by Oct. 20th
Cryo-Coolers: Have 2. Other 2 still at RAL, H2 R&D
Cassettes: Have four. #105, #111, #112 & #107 (just negotiated).
Eventually need eight.
BackPlane structure: Need to re-order base plate, misc. parts
![Page 8: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/8.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 8
Four final Cryostats: Assembly Area
“Area 51”:
D-Zero ExperimentHighbay
Fermilab
![Page 9: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/9.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 9
Four final Cryostats: Assembly Areas
“Solder station”:
Thermal link work
![Page 10: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/10.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 10
Four final Cryostats: Assembly Area
Work done/being done:G-10 stiffener panels MLI taped.Working on lid plumbingTinning OFHC flexible strips for thermal links
Next: lid heaters, cryocooler mounting, instrumentation feed thru’s, Thermal link assembly
![Page 11: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/11.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 11
Four final Cryostats: Draft Schedule?
October 2006– Thermal link assembly, lid work, delivery of invar envelopes.
November/December 2006 - First production cryostat completed, use Cassette 111 & 107. Cool down, evaluate. Warm up.
January 2007 – Second production cryostat done. Load with 105 & 112? Cool down, evaluate.
February - April 2007 – Third and Fourth cryostats done, tested.
Note: Cassettes cannot be pulled/changed without unbolting lid, undoing MLI and loosening the clamping bars at the intercepts. So cryostats really aren’t final until loaded with final cassettes and tested.
![Page 12: Russ Rucinski, FNAL, Oct. 8, 20061 MICE Cryostat Status 1.Prototype cryostat A. Status & Plans B. Parts C. Operating data (supplemental) 2.Four final cryostats.](https://reader035.fdocuments.in/reader035/viewer/2022062423/56649d425503460f94a1d8ae/html5/thumbnails/12.jpg)
Russ Rucinski, FNAL, Oct. 8, 2006 12
Closing Remarks
Prototype: Successfully commissioned. Minimal risk of not being able to obtain operating temperature control. Use for station 5, UK or KEK – Nov/Dec.06*
Four Final Cryostats: Will be ready ahead of schedule.
November, 2007 – 4 cryostats, 8 cassettes (4 more need to be liberated from D-Zero with negotiation).*
*revision based on input at CM16