f Shot Engineering Accelerator Advisory Committee Elvin Harms Fermilab Beams Division 13 May 2002

f 13 May 02 AAC E. Harms 2 Shot Engineering Introduction Planning & Scheduling Statistics Shot Set Up Analysis/SDA Summary

f 13 May 02 AAC E. Harms 3 Introduction Integrated Luminosity –31pb -1 since last meeting Peak Luminosity –Dec 01: 7.6 E30 –Now: 19.6 E30 Store Reliability –114 stores since 12/12/01 –93 terminated intentionally: 81%

f 13 May 02 AAC E. Harms 4 Planning & Scheduling Collider Operation is our priority Up to 5 shifts per week for Collider studies –Dedicated Tevatron –Dedicated Pbar source –Studies pbars to Tevatron –Other machines as conditions permit Parasitic studies during remainder of week Recycler commissioning –Protons and Pbars MiniBooNe beam commissioning Shutdowns as jobs accumulate or component failure

f 13 May 02 AAC E. Harms 5 Operations – Scheduling Typical Schedule

f 13 May 02 AAC E. Harms 6 Operations - Planning 0900 meetings Monday, Wednesday, Friday –Review of performance –Set short-term schedule Department meetings –Topics of interest –Studies de-briefing –Studies planning Monday 1030 Studies Planning meeting –Input from systems departments –Integrate dedicated and parasitic studies –Prepare schedule for next week Thursday meeting –Run IIa topic –Shot analysis

f 13 May 02 AAC E. Harms 7 Statistics Store time Downtime Set-up time Compiled since last meeting –12 December 01 through 10 May 02

f 13 May 02 AAC E. Harms 8 Statistics – Store time On average, 71 hours in store per week, 42.5% of week Peak is 110 hours

f 13 May 02 AAC E. Harms 9 Statistics - Downtime On average, 45 hours, 26% of time each week, is accrued as downtime –On average, 8% of each week is downtime due to a failure –On average, 8% of each week is downtime identified as a scheduled shutdown –Experimenter-requested accesses are not considered shutdowns, usually ‘miscellaneous’ Convening a reliability group

f 13 May 02 AAC E. Harms 10 Statistics – Set-Up time Three hour shot set- ups are the average Two-hour set-ups recently 1-1/2 hours has been achieved and should be routine Identifying ‘slow’ steps Refining set-up technique Identify a realistic short-term goal

f 13 May 02 AAC E. Harms 11 Shot Set-Up Description Tools Recent Progress and Improvements

f 13 May 02 AAC E. Harms 12 Shot Set-Up – Description Tevatron Proton source Main Injector Recycler Antiproton source

f 13 May 02 AAC E. Harms 13 Shot Set-Up – Description TevatronMain InjectorPbar source Terminate store & Return to 150 GeV Check/correct closed orbitCool Pbars into core & maintain stability Verify/correct A150 line tune Set tunes & chromaticities Check/correct extraction positions Optimize protons Accept reverse protons, maximize transmission from MI, minimize injection oscillations Load protonsProvide protons for tuneup of beam lines Orient Accumulator for unstacking

f 13 May 02 AAC E. Harms 14 Shot Set-Up – Description Tevatron Proton source Main Injector Recycler Antiproton source AP3 P2 P1 AP1 A1 MI-8

f 13 May 02 AAC E. Harms 15 Shot Set-Up – Tools Manpower –MCR crews are fully integrated –Cross-training continues –Machine experts present much of the time for dedicated tasks and monitoring Software –Sequencers –State devices –Specialized applications

f 13 May 02 AAC E. Harms 16 Shot Set-Up – Recent Progress Improved Accumulator to MI beam lines lattice match Revised Unstacking Scheme Pbar transfers to both Tevatron and Recycler in same shot set-up Tevatron tunes and chromaticity setting at 150 GeV MI coalescing improvements

f 13 May 02 AAC E. Harms 17 Shot Set-Up – Improvements Decrease turn-around time –Track length of setup steps –Identify steps of concern –Apply fixes –Ongoing exercise Beam line tuning reproducibility Tevatron octupole tune-up Proton pulse to pulse stability Pbars requested vs. unstacked Optimization of input parameters –MCR specification sheet Close the loop –Use previous stores to improve on future ones –SDA

f 13 May 02 AAC E. Harms 18 Shot Analysis/SDA Introduction Data Status

f 13 May 02 AAC E. Harms 19 Shot Analysis/SDA - Introduction SDA – The Shot Data Analysis (SDA) products are a set of complementary tools and application libraries intended for off-line studies of the Tevatron complex performance during RunII. Beam Physicists and Engineers can access the shot data from their workstations, using either a collection of Java-Based or Web based applications to plot and export flat data table (ASCII text) to other packages for further studies. We believe that this remote access and analysis of the beam data will be essential optimize and fine-tune our accelerators for RunII. This can only be accomplished via extensive studies of post-mortem dumps of the data, trending over significant periods, selection of particularly successful stores and so forth.

f 13 May 02 AAC E. Harms 20 Shot Analysis/SDA - Introduction SDA Main Tools –SDA Editor to add, edit, delete input devices Devices can be sampled over time to generate time plot data Devices can be sampled on single ‘event’ to generate scalar data –SDA Viewer to view scalar data information Given most attention to date –Plot Viewer to view plottable data Needs more attention Off-line Analysis tools –data saved into ‘Shots’ and Tevatron electronic log books –true off-line tools under development

f 13 May 02 AAC E. Harms 21 Shot Analysis/SDA – Scalar Data Sample Scalar data view for Pbars

f 13 May 02 AAC E. Harms 22 Shot Analysis/SDA – Summary Report Shot Summary, store 1303, Wed May 08 21:22:02 CDT 2002, Initial Stack Size = E10 Proton Intensity E9 Step Efficiency % Cumulative Efficiency % Pbar Intensity E9 Step Efficiency % Cumulative Efficiency % Accumulator AP AP P P MI Inj MI 8Gev MI 150Gev Coalescing Inject Protons Pbar Injection porch Inject Pbars Before Ramp Flattop Squeeze Initiate Collisions Remove Halo HEP Initial Luminosity20.24CDF18.61DZero Shot Setup Time135.22min

f 13 May 02 AAC E. Harms 23 Shot Analysis/SDA – Plots Shot Summary, store 1303, Wed May 08 21:22:02 CDT 2002, Initial Stack Size = E10 Protons – 10 recent storesPbars – 10 recent stores

f 13 May 02 AAC E. Harms 24 Shot Analysis/SDA - Status Recent influx of manpower Bi-weekly infrastructure meetings/action list Generating useful data, but not complete Software platform stabilizing Hardware fairly stable Analysis in progress/just beginning Instrumentation needs work in some areas Need to build a larger user base

f 13 May 02 AAC E. Harms 25 Shot Engineering - Summary Luminosity performance is improving Planning/scheduling –Mature –Flexibility is needed Reliability –Good –Needs proactive attention Shot Set-Up –Technique is mature –Evolving as necessary –Needs to go faster Shot analysis –Toddler stage –Tools maturing –Getting serious about analysis