Difference between revisions of "20170310-JleicIonIntegration"
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(New page: __NOTOC__ ==Mar 10 2017 JLEIC Ion Integration Meeting ''(and Notes)'' == ==== Agenda being developed ==== ==== Beam Parameter Spreadsheet ==== * Todd h...) |
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==Mar 10 2017 [[JLEIC-Ion-Integration-Meetings|JLEIC Ion Integration Meeting]] ''(and Notes)'' == | ==Mar 10 2017 [[JLEIC-Ion-Integration-Meetings|JLEIC Ion Integration Meeting]] ''(and Notes)'' == | ||
| − | ==== | + | ==== Bunch Formation Progress ==== |
| + | * Todd has started evaluating bunch formation proposals from Jiquan | ||
| + | * Spreadsheet and simulation (esme) progress | ||
| + | * Involved cross-check between spreadsheet and esme | ||
| + | * [http://www.toddsatogata.net/JLEIC/2017-03-10-JleicBunchFormation.pptx slides are here] | ||
| + | * Will set up meeting to discuss RF constraints with Jiquan/Shaoheng | ||
==== Beam Parameter Spreadsheet ==== | ==== Beam Parameter Spreadsheet ==== | ||
| − | * Todd | + | * Todd continues to develop a [http://www.toddsatogata.net/JLEIC/JLEICBeamParameters.xlsx draft beam parameters spreadsheet] ([http://www.toddsatogata.net/JLEIC/JLEICBeamParameters.pdf pdf]), including input parameters and derived parameters |
| − | * Note that these are explicitly '''beam''' parameters, (mostly) not accelerator hardware parameters (e.g. lattices, instrumentation, etc) | + | ** Have added rough start at some instability thresholds, verified longitudinal parameter calculations vs esme |
| − | ** | + | ** Some items (particularly space charge calculation) need to be revisited to agree with Jiquan's calculations |
| + | ** Note that these are explicitly '''beam''' parameters, (mostly) not accelerator hardware parameters (e.g. lattices, instrumentation, etc) | ||
| + | ** Will move forward with reorganizing beam/lattice parameters area in coming weeks | ||
* Three goals: | * Three goals: | ||
** Ensure consistency of design beam parameters at matchpoints between JLEIC machines | ** Ensure consistency of design beam parameters at matchpoints between JLEIC machines | ||
| Line 15: | Line 22: | ||
==== R&D Items: Ion Integration ==== | ==== R&D Items: Ion Integration ==== | ||
* Bunch formation (Jiquan, Todd, Randy; Ed, Vasiliy) | * Bunch formation (Jiquan, Todd, Randy; Ed, Vasiliy) | ||
| − | ** | + | ** See above update |
| − | ** | + | ** Randy is assisting Todd with esme calculations; will cross-validate with BLonD (CERN python longitudinal code) |
| − | + | * Booster injection (Ed) | |
| − | ** | + | ** Ed has reviewed literature, is resurrecting Synergia work |
| − | ** | + | ** Update in two weeks? |
| − | * | + | * Linac (Brahim; Todd, Ed, Amy) |
| − | ** | + | ** Brahim is evaluating tradeoffs of H+ vs H- beam transport |
| − | ** | + | ** Reported at Mar 2 R&D meeting; further report at collaboration meeting |
| − | ** | + | ** Existing modeling is good enough to use for beam parameters for Booster injection |
* Booster extraction (Ed/Todd?) / Booster to Collider (Todd, Yves?) / Collider injection (Vasiliy?) | * Booster extraction (Ed/Todd?) / Booster to Collider (Todd, Yves?) / Collider injection (Vasiliy?) | ||
** Bucket to bucket synchro/cogging? | ** Bucket to bucket synchro/cogging? | ||
| Line 34: | Line 41: | ||
== Reference Materials == | == Reference Materials == | ||
* [https://www.jlab.org/indico/event/179/ JLEIC Fall 2016 Collaboration Meeting] (Oct 5-7 2016, InDiCo) | * [https://www.jlab.org/indico/event/179/ JLEIC Fall 2016 Collaboration Meeting] (Oct 5-7 2016, InDiCo) | ||
| + | * [https://www.jlab.org/conferences/jleic-spring17/ JLEIC Spring 2017 Collaboration Meeting] (Apr 3-5 2017, website) | ||
* [https://jlabsvn.jlab.org/svnroot/jleic/ JLEIC svn repository] | * [https://jlabsvn.jlab.org/svnroot/jleic/ JLEIC svn repository] | ||
| − | * [[ | + | * [[20170210-JleicIonIntegration | Last meeting (Feb 10 2017)]] |
== Attendance == | == Attendance == | ||
* ''TBD'' | * ''TBD'' | ||
Latest revision as of 14:23, 10 March 2017
Mar 10 2017 JLEIC Ion Integration Meeting (and Notes)
Bunch Formation Progress
- Todd has started evaluating bunch formation proposals from Jiquan
- Spreadsheet and simulation (esme) progress
- Involved cross-check between spreadsheet and esme
- slides are here
- Will set up meeting to discuss RF constraints with Jiquan/Shaoheng
Beam Parameter Spreadsheet
- Todd continues to develop a draft beam parameters spreadsheet (pdf), including input parameters and derived parameters
- Have added rough start at some instability thresholds, verified longitudinal parameter calculations vs esme
- Some items (particularly space charge calculation) need to be revisited to agree with Jiquan's calculations
- Note that these are explicitly beam parameters, (mostly) not accelerator hardware parameters (e.g. lattices, instrumentation, etc)
- Will move forward with reorganizing beam/lattice parameters area in coming weeks
- Three goals:
- Ensure consistency of design beam parameters at matchpoints between JLEIC machines
- Provide input to impedance and instability calculations, and broader beam simulation effort
- Serve as a machine-by-machine beam parameter reference for the eventual CDR
R&D Items: Ion Integration
- Bunch formation (Jiquan, Todd, Randy; Ed, Vasiliy)
- See above update
- Randy is assisting Todd with esme calculations; will cross-validate with BLonD (CERN python longitudinal code)
- Booster injection (Ed)
- Ed has reviewed literature, is resurrecting Synergia work
- Update in two weeks?
- Linac (Brahim; Todd, Ed, Amy)
- Brahim is evaluating tradeoffs of H+ vs H- beam transport
- Reported at Mar 2 R&D meeting; further report at collaboration meeting
- Existing modeling is good enough to use for beam parameters for Booster injection
- Booster extraction (Ed/Todd?) / Booster to Collider (Todd, Yves?) / Collider injection (Vasiliy?)
- Bucket to bucket synchro/cogging?
- Final beam stripping
- Polarization (AGS to RHIC transfer spin design chapter)
- Coordination with other groups
- Beam cooling (Steve Benson et al.: Booster DC, Collider)
- Instability/impedance (Rui Li et al.)
Reference Materials
- JLEIC Fall 2016 Collaboration Meeting (Oct 5-7 2016, InDiCo)
- JLEIC Spring 2017 Collaboration Meeting (Apr 3-5 2017, website)
- JLEIC svn repository
- Last meeting (Feb 10 2017)
Attendance
- TBD
