Difference between revisions of "Beam Setup and Measurement - May 2018"
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(Created page with "== Energy Setup and Measurement == == Emittance Measurement == :Setup beam to FC2 :Use qsUtility configuration files to scan MQJ0L02 and/or MQJ0L02A and uses harp IHA0L03 :B...") |
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Line 7: | Line 7: | ||
:Be sure to enter the correct momentum in the configuration and/or analysis files | :Be sure to enter the correct momentum in the configuration and/or analysis files | ||
:Elegant optics lattice begins at MQJ0L02 (that is, use or propagate optics to that location) | :Elegant optics lattice begins at MQJ0L02 (that is, use or propagate optics to that location) | ||
+ | |||
== Energy Spread Measurement == | == Energy Spread Measurement == | ||
Line 13: | Line 14: | ||
:Upstream quads MQJ0L02 and MQJ0L02A can be any value but must be recorded | :Upstream quads MQJ0L02 and MQJ0L02A can be any value but must be recorded | ||
:Use HarpFitterTool to scan IHA2D00 to measure horizontal beam size | :Use HarpFitterTool to scan IHA2D00 to measure horizontal beam size | ||
− | : | + | :Use Elegant to calculate the horizontal beta (betax) and the horizontal dispersion (etax) at the harp location |
+ | ::Update lattice file ''/usr/opsdata/bubble/elegant/May2018/lattice.lte'' | ||
+ | :::K1 values for MQJ0L02/MQJ0L02A | ||
+ | ::Update energy spread elegant file | ||
+ | :::Go here ''/usr/opsdata/bubble/elegant/May2018/energy_spread'' | ||
+ | ::Edit energyspread.ele | ||
+ | :::Update p_central_mev | ||
+ | :::Update beta_x and beta_y with qsUtility values at MQJ0L02 | ||
+ | :::Update emit_nx and emit_ny with qsUtility values at MQJ0L02 | ||
+ | ::Run elegant | ||
+ | ::: Go here ''/usr/opsdata/bubble/elegant/May2018/energy_spread'' | ||
+ | |||
== Optics Setup == | == Optics Setup == | ||
− | :[https://wiki.jlab.org/ciswiki/index.php/Beamline,_Radiator_and_Dump#Model Chris Tennant's Elegant Model] from September 2015 installed for reference ''/usr/opsdata/bubble/elegant/Sep2015'' | + | :[https://wiki.jlab.org/ciswiki/index.php/Beamline,_Radiator_and_Dump#Model Chris Tennant's Elegant Model] from September 2015 installed for reference: |
+ | ::''/usr/opsdata/bubble/elegant/Sep2015'' | ||
+ | |||
+ | :Elegant Model files updated for May 2018: | ||
+ | ::''/usr/opsdata/bubble/elegant/May2018'' | ||
+ | |||
+ | :Lattice file definition of beam lines and defaults: | ||
+ | ::''/usr/opsdata/bubble/elegant/May2018/lattice'' |
Revision as of 10:42, 9 May 2018
Energy Setup and Measurement
Emittance Measurement
- Setup beam to FC2
- Use qsUtility configuration files to scan MQJ0L02 and/or MQJ0L02A and uses harp IHA0L03
- Be sure to enter the correct momentum in the configuration and/or analysis files
- Elegant optics lattice begins at MQJ0L02 (that is, use or propagate optics to that location)
Energy Spread Measurement
- Setup beam to 2D spectrometer dump
- Upstream quads MQJ0L02 and MQJ0L02A can be any value but must be recorded
- Use HarpFitterTool to scan IHA2D00 to measure horizontal beam size
- Use Elegant to calculate the horizontal beta (betax) and the horizontal dispersion (etax) at the harp location
- Update lattice file /usr/opsdata/bubble/elegant/May2018/lattice.lte
- K1 values for MQJ0L02/MQJ0L02A
- Update energy spread elegant file
- Go here /usr/opsdata/bubble/elegant/May2018/energy_spread
- Edit energyspread.ele
- Update p_central_mev
- Update beta_x and beta_y with qsUtility values at MQJ0L02
- Update emit_nx and emit_ny with qsUtility values at MQJ0L02
- Run elegant
- Go here /usr/opsdata/bubble/elegant/May2018/energy_spread
- Update lattice file /usr/opsdata/bubble/elegant/May2018/lattice.lte
Optics Setup
- Chris Tennant's Elegant Model from September 2015 installed for reference:
- /usr/opsdata/bubble/elegant/Sep2015
- Elegant Model files updated for May 2018:
- /usr/opsdata/bubble/elegant/May2018
- Lattice file definition of beam lines and defaults:
- /usr/opsdata/bubble/elegant/May2018/lattice