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3X3 stores in the Tevatron

This document outlines the key updates and modifications to the 3X3 stores in the Tevatron as of August 2011. Changes include the addition of a line to select the 3X3 store, disabling various scripts related to tuning and logging, and modifications to the synchronization specifications. Additionally, new commands have been injected that depend on the state of the 3X3 device. Significant operational procedures such as the removal of the Halo aggregate and adjustments to the collimator sequence map are also detailed. This summary aims to inform operators and relevant personnel about the current state of affairs.

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3X3 stores in the Tevatron

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  1. 3X3 stores in the Tevatron August 2011

  2. List of Sequencer changes • Add line to select 3X3 store • Disable PBJ script (Done inside script) • Disable Adjust LB_tune (Done inside script) • Disable Adjust tunes script (Done inside script) • Change synch lite spec from 4 to 5 (prepare to ramp cmd 4) • Disable synch lite spec 0 (Rem Halo cmd 34 and 41) • Modified Remove Halo aggregate with a special instruct • Modified collimator sequence map • Inject commands driven on V:3X3 state device. • Disable Web log chapter (Decelerate cmd 59)???

  3. Command to Select 3X3 Has to be enabled at start of week. Will execute only If TEVMOD is HEP mode

  4. Inject Final Proton Command Used by TLG to select number of batches. (Normally set by Coalescing Command.) Will skip if V:3X3 is not 2 Will skip if V:3X3 is 2

  5. Inject Pbar Command Will skip if V:3X3 is not 2 Will skip if V:3X3 is 2

  6. Remove Halo Aggregate New tevcol command Will tell operator to jump to new point in sequence Will only execute if V:3X3 is 2 Truncate command will stop sequence so operator can jump to retract section

  7. Tev col 8 setup

  8. Sequence map for tev col 8 (normally all zeros)

  9. Extra slides below Not Relevant

  10. Topics of concern • Single bunch Injection • Protons just set G:NBTEV to 1 (this is buried in a coalesce command) • Pbars: RR guys make it happen • Qualifier setup • Set T:NBATCH • Inject command • TEL setup? • Longitudinal Damper (OK as is) • Scraping • No Collimators in at flattop (Done inside script) • Change $DB or $CF setup? • Energy Scan stores in 2.5 weeks (this will be hard – need everyone)

  11. Existing Remove Halo Command Already executes only if V:TEMOD is 1 (HEP)

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