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| | = Jun 16 2017 [[JLEIC-Ion-Integration-Meetings|JLEIC Ion Integration Meeting]] = | | = Jun 16 2017 [[JLEIC-Ion-Integration-Meetings|JLEIC Ion Integration Meeting]] = |
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| − | == JLEIC Documentation Discussion ==
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| − | * Todd, Mike, Yuhong, Walt Akers, and Rik Yoshida had a [[20170616-JleicParamDoc|JLEIC documentation meeting]] earlier this morning
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| − | * Discussion items included
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| − | ** Some inconsistencies observed in recent high-level tables in [https://jleic-docdb.jlab.org/cgi-bin/private/DocumentDatabase JLEIC DocDB]
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| − | ** Plans for JLEIC tech note consolidation in JLEIC DocDB, philosophy of use
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| − | ** Update on JLEIC subversion repository
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| − | ** JLEIC parameter documentation, review/release guidance
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| − | == Collider Ring Harmonic Numbers (Jiquan) ==
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| − | * Jiquan has produced a draft tech note [[Media:20170616-JLEIC_RF_Parameters_due_to_Synch_Req_Jiquan_Guo_Draft.pdf|''Variation of JLEIC RF Parameters due to Synchronization Requirements'']]
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| − | * Contains narrative and top-level RF parameters for collider rings at ion KE=100 GeV
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| − | * Can be used as a live document/reference, with parameters updated as collider ring circumferences are updated
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| − | * Suggest that it be reviewed and go into JLEIC DocDB for version 1 as is, and linked from CASA parameter wiki pages
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| − | * Then distribute to relevant parties (Andrew Hutton/Andrew Dotson, Todd/Randy, Vasiliy/Fanglei, ...).
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| − | == Polarized Source / ANL (Amy) ==
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| − | * Amy/Zack (ANL): First telecon held Wed Jun 14 15:00
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| − | ** Amy, Fulvia, Ed, Yuhong, Slava, Todd, James Maxwell (JLab); Zack/Brahim (ANL); Vadim Dudnikov (Muons, listened in)
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| − | ** ANL looking for technical feedback on ABPIS (resonant charge exchange ionizer) -- is this appropriate technology?
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| − | ** ANL have Cesium sources available, some modest funds in near-term for design/costing of APBIS as input to their EBIS, and polarimetry
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| − | ** Polarized light ion source needs are common for JLab/BNL proposals
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| − | ** Amy suggested an [[Media:IonSourceDiscussion_06142017.pptx|SBIR]] with ANL/Muons/JLab as a path forward
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| − | * ANL visit (Todd, Tue Jul 11)
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| − | ** Coordinating visit, meeting plan with Brahim/Zack
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| − | ** Brahim: summer student extending linac to high energy
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| − | ** Linac lattice baseline/parameter area to be shared via Dropbox, reflected in JLEIC Baseline Parameters wiki
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| − | ** Linac/Booster optimal Pb charge state (67+?) (see [https://casa.jlab.org/wiki/index.php/20170421-JleicIonIntegration previous meeting])
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| − | == Booster Ramping ==
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| − | * Todd has started a [[Media:2017-06-16-BoosterRampDraft.pdf|tech note on the Booster ramp parameters]]
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| − | == Linac/Booster Pb Charge State ==
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| − | * ANL has mostly been simulating/optimizing the low energy linac (c.f. HB'16 talk/paper by Ostroumov)
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| − | ** This affects charge state and stripping optimization, but does not affect latest optimizations to handle RFQ heavy ion losses
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| − | ** Heavy ion source expected to have 1-2 pi mm-mrad normalized emittance; which is it?
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| − | * Brahim has noted that 67+ may not be the optimal charge state for the baseline high energy linac
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| − | * Brahim and Todd are continuing to discuss
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| − | ** Tradeoff of space charge vs stripping efficiency/pulse intensity
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| − | ** Todd's initial feeling is that this is a relatively flat optimization
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