Difference between revisions of "20170616-JleicIonIntegration"
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(New page: __NOTOC__ = Jun 16 2017 JLEIC Ion Integration Meeting = == JLEIC Documentation Discussion == * Todd, Mike, Yuhong, Walt Akers, and Rik Yoshida had a [[2...) |
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** Linac/Booster optimal Pb charge state (67+?) (see [https://casa.jlab.org/wiki/index.php/20170421-JleicIonIntegration previous meeting]) | ** Linac/Booster optimal Pb charge state (67+?) (see [https://casa.jlab.org/wiki/index.php/20170421-JleicIonIntegration previous meeting]) | ||
− | + | == Booster Ramping == | |
* Todd has started a tech note on the Booster ramp parameters | * Todd has started a tech note on the Booster ramp parameters | ||
− | + | == Linac/Booster Pb Charge State == | |
* ANL has mostly been simulating/optimizing the low energy linac (c.f. HB'16 talk/paper by Ostroumov) | * ANL has mostly been simulating/optimizing the low energy linac (c.f. HB'16 talk/paper by Ostroumov) | ||
** This affects charge state and stripping optimization, but does not affect latest optimizations to handle RFQ heavy ion losses | ** This affects charge state and stripping optimization, but does not affect latest optimizations to handle RFQ heavy ion losses |
Revision as of 09:44, 16 June 2017
Jun 16 2017 JLEIC Ion Integration Meeting
JLEIC Documentation Discussion
- Todd, Mike, Yuhong, Walt Akers, and Rik Yoshida had a JLEIC documentation meeting earlier this morning
- Discussion items included
- Some inconsistencies observed in recent high-level tables in JLEIC DocDB
- Plans for JLEIC tech note consolidation in JLEIC DocDB, philosophy of use
- Update on JLEIC subversion repository
- JLEIC parameter documentation, review/release guidance
Collider Ring Harmonic Numbers (Jiquan)
- Jiquan has produced a draft tech note Variation of JLEIC RF Parameters due to Synchronization Requirements
- Contains narrative and top-level RF parameters for collider rings at ion KE=100 GeV
- Can be used as a live document/reference, with parameters updated as collider ring circumferences are updated
- Suggest that it be reviewed and go into JLEIC DocDB for version 1 as is, and linked from CASA parameter wiki pages
- Then distribute to relevant parties (Andrew Hutton/Andrew Dotson, Todd/Randy, Vasiliy/Fanglei, ...).
Polarized Source / ANL (Amy)
- Amy/Zack (ANL): First telecon held Wed Jun 14 15:00
- Amy, Fulvia, Ed, Yuhong, Slava, Todd, James Maxwell (JLab); Zack/Brahim (ANL); Vadim Dudnikov (Muons, listened in)
- ANL looking for technical feedback on ABPIS (resonant charge exchange ionizer) -- is this appropriate technology?
- ANL have Cesium sources available, some modest funds in near-term for design/costing of APBIS as input to their EBIS, and polarimetry
- Polarized light ion source needs are common for JLab/BNL proposals
- Amy suggested an SBIR with ANL/Muons/JLab as a path forward
- ANL visit (Todd, Tue Jul 11)
- Coordinating visit, meeting plan with Brahim/Zack
- Brahim: summer student extending linac to high energy
- Linac lattice baseline/parameter area to be shared via Dropbox, reflected in JLEIC Baseline Parameters wiki
- Linac/Booster optimal Pb charge state (67+?) (see previous meeting)
Booster Ramping
- Todd has started a tech note on the Booster ramp parameters
Linac/Booster Pb Charge State
- ANL has mostly been simulating/optimizing the low energy linac (c.f. HB'16 talk/paper by Ostroumov)
- This affects charge state and stripping optimization, but does not affect latest optimizations to handle RFQ heavy ion losses
- Heavy ion source expected to have 1-2 pi mm-mrad normalized emittance; which is it?
- Brahim has noted that 67+ may not be the optimal charge state for the baseline high energy linac
- Brahim and Todd are continuing to discuss
- Tradeoff of space charge vs stripping efficiency/pulse intensity
- Todd's initial feeling is that this is a relatively flat optimization