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Injector Status. Timur Shaftan, Injector Group Leader 9 th ASAC meeting for NSLS-II Project February 1-2, 2012. Outline. Introduction Project baseline dates P reparation for linac commissioning Status of the booster system Status of the transport lines
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Injector Status Timur Shaftan, Injector Group Leader 9th ASAC meeting for NSLS-II Project February 1-2, 2012
Outline Introduction Project baseline dates Preparation for linac commissioning Status of the booster system Status of the transport lines Status of SR injection straight section Conclusions
Injector Layout BST Phase One SR Injection Straight BST Phase Two Linac Booster LTB Phase Two LTB Phase One
Introduction • Linac: finishing installation; commissioning is coming in March-April 2012 • Booster: in the middle of production; first container is delivered, second is on the way (total 13) • LtB transport line: 1st part is installed; unit testing is ongoing; integrated testing is in middle of Feb 2012 • LtB TL part 2 and BST TL part 1: design is finished; procurements are ongoing • BST transport line part 2: design is concluded • Injection straight section: septum contract is awarded (Danfysik) in late Aug 2012; kickers we are building in-house
Injector Complex Status Linac BST-TL (Phase One) Booster Injection straight section LBT-TL (Phase One) B. Wahl
Injector Timeline B. Wahl
Linac Front End Performance – Single Bunch Mode • Tests of gun and SHPB performance • Test stand at SDL is developed • Linac Front-End is delivered prior to linac delivery for experiments • 3 pulsers were tested • Beam envelopes along the set-up are measured • Measurement data was taken and now being analyzed and compared with model Measured: Bunch Charge:230pC Bunch Length: 437 ps Emittance: 20 mm-mrad R. Fliller and X. Yang
Booster Assembly, Delivery and Installation(Budker Institute of Nuclear Physics) Integration Production Shipments: Packaging (Pedestals) • A total 13 Containers will be shipped to BNL • All Pedestals received 1/4/12 • First Container w/ Girders due 2/20/12 • Containers arrive at BNL every two weeks • Last Container due to arrive June 2012 Transportation Prepare for Shipment Magnetic Measurements Installation: • Installation of Pedestals 1/24 – 2/29 • All Girders will be tested in the Experimental Hall • First Girder will be installed at the end of March • 5 - 7 Girders are installed per week • Last Girder is Installed at the end of August 2012 • Girder Integration complete – September 2012 Receipt at BNL Packaging (Girders) Assembly
Booster dipoles dK1/K1 dK2/K2 tolerance 170 MeV 3 GeV 3 GeV 170 MeV • Dipole production is in progress • Magnetic measurements (above) show that field components are within tolerances • Magnetic measurement system includes array of 16 Hall probes and laser-tracker for controlling position of the sensors inside dipole • 8BF/ 8BD are ready: magnet storage area at BINP (right photo)
Booster Power Supplies Corrector/Sextupole PS (BINP) BD PS (Danfysik) • Booster PS: • 2 BD and 1 BF circuits: produced by Danfysik. • 3 Quadrupole circuits • 16 Sextupole circuits produced by BINP • 36 corrector circuits • All PS are under testing now; delivery to BNL in April • Integration with controls was tested at BINP • Final tests with NSLS-II controls and on full load after delivery
Booster vacuum and diagnostics • Booster arc chambers are complete • Chambers were installed in magnets and vacuum-tested • 12 ceramic chambers have been delivered from Friatec; will be installed into a kicker to measure waveform quality • First septum chamber is being assembled at BINP • BPM buttons delivered to BINP, installed, BPM response measured • Striplines are ready Booster arc chambers Kicker ceramic chamber (Friatec) Complete BPM assembly
Booster pulsed magnets • Include: • 6 booster kickers • 2 septa • Slow bump • Injection kicker (below) is developed and tested; performance is within spec • Extraction kicker will be available for testing in February • Septum magnet will be assembled in February, PS is ready • Bump magnets and their PS are ready and in testing • After delivery all booster pulsed magnets will be assembled and tested in NSLS-II Pulsed Magnet Lab. Septum PS Injection kicker waveform Injection kicker test-stand at BINP
Transport Line Magnet Status(Stangenes Industries) • LBT Status • Small Correctors – Received in Full • Large Correctors – Received in Full • (7 of 18) “Normal Quads” Received • “Large Quads” - Received in Full • (2 of 5) Dipoles Received • ***** Balance of Magnets expected May 2012***** LBT 48mm Dipole (2 of 4 received) LBT 100/45mm Correctors (received in full) BST 90mm Dipole (work in progress – May 2012) LBT 52mm Quad (7 of 17 received) • BST Status • (18) “Long” Quads Expected May 2012 • (4) Dipoles Expected May 2012 • **** LBT & BST “Spares” Expected June 2012***** BST 52mm Quad (work in progress – May 2012) LBT 134mm Quad (received in full) B. Wahl
LBT - Phase One Installation/Testing LTB-TL (Downstream) LTB-TL (Upstream) Current Status: • Magnets, Diagnostics and Vacuum installed • DI Water and CA connections complete by 2/14 • Electrical Utilities complete by 2/7 • Vacuum complete by 2/16 • Interlock complete by 2/15 • Shielding complete by 2/17 • Final survey scheduled for the week of 2/6/12 • Integrated Testing scheduled between 2/13 – 2/24 • IRR Committee conducts review between 2/13 – 2/17 • ARR takes place between 2/27 – 2/19 Shielding Magnets Survey & Alignment Diagnostics B. Wahl
Injector Control Room * Control room: top view As of Jan 20th
Status of BSR transport line • BST transport line design is complete • BSR TL Final design review took place in Sept 2011 • Delivery of all TL magnets are expected from Stangenes until June 2012 • Detailed design of vacuum chambers is on the way • Most diagnostics components are the same as in LtB TL • Software applications for booster commissioning using BST TL diagnostics line have been tested Booster extraction straight BSR transport line
SR kicker development • Aug 2011 -- decision to build 5 kickers in house • Ceramic chambers are on order • Testing IGBTs and Behlke switches • Pulser prototype is tested at half of the nominal voltage (stability of I/I<3E-5 is achieved) • Kicker field measurement system is developed Kicker pulser prototype Ceramic kicker chamber Kicker field measurement system E. Blum, P. Zuhoski, R. Heese, S. Kowalski, B. Singh
SR injection straight section • DC preseptum is identical to the booster extraction septum • Compact design with low fringe field • Septum PS by NSLS-II Electrical group • Tender for the SR pulsed magnets was concluded in July 2011 • Danfysik received the septum contract • “Usual” out-of-vacuum design such as at Diamond or ASP • Danfysik will deliver the magnet, chamber, PS (PPT), controls • Septum PDR is on February 9th • SR injection straight section: we are designing the interface chambers between pulsed magnets • These transitions contain 2 flags and 4 BPMs DC preseptum SR pulsed septum E. Blum, P. Zuhoski, R. Heese, S. Kowalski, B. Singh
Conclusions • We are at the start of injector commissioning • Linac ARR is scheduled for Feb 29; commissioning is in mid March • Booster delivery and installation throughout summer and early fall • Close interaction with all injector vendors: RI, BINP, FRIATEC, Danfysik, PPT
NSLS-II team working on injector G. Wang, B. Wahl, R. Fliller, E. Blum, J. Rose, R. Heese, S. Kowalski, B. Dalesio, B. Parker, F. Willeke, S. Ozaki, E. Johnson, E. Weihreter, Y. Li, I. Pinayev, M. Ferreira, S. Klare, M. Johanson, B. Singh, P. Zuhoski, G. Fries, A. Blednykh, S. Sharma, G. Shen, K. Shroff, T. Mennona, B. Kosciuk, D. Hseuh, G. Ganetis, T. Shaftan, O. Singh, J. Skaritka, C. Spataro, E. Golnar, P.K. Job, B. Casey, G. Woods, X. Yang, L. Yang, A. Ackerman