Spectrometer Solenoid Procurement Update Steve VirostekWing Lau Mike GreenStephanie Yang Lawrence...
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Transcript of Spectrometer Solenoid Procurement Update Steve VirostekWing Lau Mike GreenStephanie Yang Lawrence...
Spectrometer
Solenoid Procurement
Update
Steve Virostek Wing LauMike Green Stephanie
YangLawrence Berkeley National Lab Oxford Physics
MICE Collaboration Meeting June 9, 2006
Spectrometer Solenoid Procurement Update
Page 2
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•Magnet specification completed and reviewed
•Change request for magnet design submitted
•Superconductor material accepted by LBNL
•Bid request package went out on April 10th
•Quotes requested from 7 vendors (3 US, 4 Europe)
•5 spectrometer solenoid bid packages received
•Bid review process is nearly complete
•Contract award expected before the end of June
Spectrometer Solenoid Update
Spectrometer Solenoid Procurement Update
Page 3
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Spectrometer Solenoid Procurement Update
Page 4
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Spectrometer Solenoid Procurement Update
Page 5
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•Spec completed, reviewed by collaboration and provided to LBNL procurement mid-March
•LBNL Purchasing reviewed and evaluated the specification and wrote the Request for Proposal
•Build-to-spec bid request package including the solenoid specification went out on April 10th
•Quotes requested from 7 qualified vendors
•Bid response requested 5 weeks from RFQ release
•5 bid packages received on May 15th (2 no bids)
Recent Progress (March – June)
Spectrometer Solenoid Procurement Update
Page 6
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•Several week evaluation period included analysis by LBNL (Eng. & Purch.) and questions for vendors
•Bid review process at LBNL is nearly complete
•Selected vendor’s bid package has been reviewed by an invited group at this collaboration meeting
•Contract award expected before the end of June
Other:
•Superconductor material arrived at LBNL May 5th
•Magnet design change request submitted May 9th
Recent Progress (continued)
Spectrometer Solenoid Procurement Update
Page 7
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•General system description•Applicable codes and standards•Detailed fabrication requirements•Inspection and acceptance requirements•Packing, shipping and handling requirements
•Notification Requirements•List of government furnished materials•Quality assurance requirements•Conceptual design drawings•Attachments (conductor spec, procedures, TRD)
Procurement Specification Content
Spectrometer Solenoid Procurement Update
Page 8
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•Material supplied by Outokumpu arrived on May 5th
•Length of the delivered conductor: 121.49 km
•Nominal dims of insulated conductor: 1.00 x 1.65 mm
•Nominal copper to superconductor ratio: 3.9 ± 0.4
•Number of filaments in the conductor matrix: ~222
•Nominal filament diameter: ~41 microns
•Nominal conductor twist pitch: 19 ± 3 mm
•Material cost for both solenoids: $168k
•Material to be shipped to vendor after contract award
Superconductor Details
Spectrometer Solenoid Procurement Update
Page 9
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Conductor Cross-section
1.00 mm
1.65 mm
41 mm Nb-Ti FilamentRRR = 70 Copper
Spectrometer Solenoid Procurement Update
Page 10
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Conductor Mechanical CharacteristicsBoth tests look for filament breakup
and defects in the filament bundle
The dimensions are acceptable
Spectrometer Solenoid Procurement Update
Page 11
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Conductor Electrical Characteristics
Specified conductor critical current: >760 @ 4.2 K and 5 T
Specified conductor n value: >35
Specified conductor copper to S/C ratio: 3.9 ± 0.4
RRR values for the conductor copper are acceptable
Spectrometer Solenoid Procurement Update
Page 12
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Typical OKAS Short Sample Test Plot
Spectrometer Solenoid Procurement Update
Page 13
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Critical Current vs. Magnetic Induction
Spectrometer Solenoid Procurement Update
Page 14
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Spooling of the Conductor
Spectrometer Solenoid Procurement Update
Page 15
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
LBNL Inspection of the Superconductor•3 crates received containing six
conductor spools •All spools of conductor were visually inspected and found to be in good condition w/no shifting
•A sample was cut from one of the smaller rolls (a small roll is more likely to have defects)
•The surface of the insulation from a 1 meter long section was visually inspected. The twist pitch was observed to be ~19 mm
•The conductor copper was removed using nitric acid to allow the Nb-Ti filaments to be inspected
Spectrometer Solenoid Procurement Update
Page 16
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
Exposed Conductor Filaments
The conductor twist pitch is within the specified range of values
~2.5 mm
Spectrometer Solenoid Procurement Update
Page 17
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
A Closer Look at the Filaments
No filament sausaging observed, suggesting a high n valueFilament surfaces appear to be acceptablejc likely to be uniform across the conductor section
Spectrometer Solenoid Procurement Update
Page 18
S. Virostek, M. Green (LBNL) --- W. Lau, S. Yang (Oxford)
•Superconductor material accepted by LBNL
•RFQ’s sent to 7 magnet vendors
•5 bid packages received by LBNL May 15th
•Final vendor selection nearly complete
•Procurement contract expected to be placed before the end of June
Summary