f

Shot Engineering

Accelerator Advisory CommitteeElvin Harms

Fermilab Beams Division

13 May 2002

13 May 02AAC

E. Harms2

fShot Engineering

• Introduction

• Planning & Scheduling

• Statistics

• Shot Set Up

• Analysis/SDA

• Summary

13 May 02AAC

E. Harms3

fIntroduction

• 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%

Luminosity Per Week Since 06/04/01

0.00

500.00

1000.00

1500.00

2000.00

2500.00

3000.00

3500.00

06/04

/01

06/25

/01

07/16

/01

08/06

/01

08/27

/01

09/17

/01

10/08

/01

10/29

/01

11/19

/01

12/10

/01

12/31

/01

01/21

/02

02/11

/02

03/04

/02

03/25

/02

04/15

/02

We

ek

ly In

teg

rate

d L

um

ino

sit

y (

nb

-1)

0.00

5.00

10.00

15.00

20.00

25.00

30.00

35.00

40.00

45.00

50.00

Ru

n In

teg

rate

d L

um

ino

sit

y (

pb

-1)

Weekly Luminosity Run Luminosity

13 May 02AAC

E. Harms4

fPlanning & 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

13 May 02AAC

E. Harms5

fOperations – Scheduling

Typical Schedule

13 May 02AAC

E. Harms6

fOperations - 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

13 May 02AAC

E. Harms7

fStatistics

• Store time

• Downtime

• Set-up time

• Compiled since last meeting– 12 December 01 through 10 May 02

13 May 02AAC

E. Harms8

fStatistics – Store time

• On average, 71 hours in store per week, 42.5% of week

• Peak is 110 hours

Store Hours Per Week Since 11/05/01

0.00 0.00 0.00

36.40

90.64

67.25

54.27

110.25

93.24

45.48

97.87

54.65

92.91

86.07

70.67

47.08

80.61

33.48

97.36

87.58

70.4766.10

45.11

35.39

83.8379.91

0.00

20.00

40.00

60.00

80.00

100.00

120.00

11/05/0111/19/0112/03/01 12/17/0112/31/01 01/14/0201/28/0202/11/02 02/25/0203/11/0203/25/02 04/08/0204/22/02

Inte

gra

ted S

tore

Hou

rs

13 May 02AAC

E. Harms9

fStatistics - 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

Weekly Downtime Since 11/05/01

168.00168.00

79.00

13.753.75 2.00

8.50 8.00 3.50

37.75

0.00 5.5011.75

20.00

3.25

30.75

4.50

26.00

3.50 5.50 0.0012.50 16.50

85.50

11.25 8.75

0.00 0.00

28.00

12.25

5.50

31.5012.50 14.00

17.25

0.50

3.00

31.50

0.00

12.50

4.25

6.00

11.75

18.00

2.75 2.50 13.00

22.25

38.25

15.00

29.50

12.25

0.00 0.00

61.00

81.50

13.00

19.50

21.25

4.50 6.75

16.25

22.25

23.25

19.00

7.50

10.50

24.50

8.25

24.75

17.252.75

14.25

6.75

7.50

10.50

14.50

11.75

0.00

20.00

40.00

60.00

80.00

100.00

120.00

140.00

160.00

180.00

11/05/01 11/19/01 12/03/01 12/17/01 12/31/01 01/14/02 01/28/02 02/11/02 02/25/02 03/11/02 03/25/02 04/08/02 04/22/02

Dow

ntim

e (H

ours

)

Shutdown Component Failure Miscellaneous

13 May 02AAC

E. Harms10

fStatistics – 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

Store Set Up Time Since 12/03/01

1285

1287

1288

1280

1260

1258

1224

1217

1216

1182

1203

1207

1226

1229

1240

1242 12

4312

5312

57

11

7611

7411

7211

6911

541152

1150

1144

1142

1140

1137

1128

1126

1124

1122

1120

1116

1113

1095

1093

1091

1089

1084

1082

1080

107410

7210

7010

6610

6310

4810

4710

4510

4310

4010

381036

1023

101810

0210

2010

1310

0099

899

699

499

299

0

965

973

97196

996

7955

953950

948

942

940

934

933

93192

992

791

991

791

691

491

391

290

5903

900

88988

588

487

587

487

287

086

986

786

186

085

885

785

584

384

083

483

282

881

881

681

481

181

080

880

0

0.00

2.00

4.00

6.00

8.00

10.00

12.00

Store #

Set U

p Ti

me

(Hou

rs)

1178

13 May 02AAC

E. Harms11

fShot Set-Up

• Description

• Tools

• Recent Progress and Improvements

13 May 02AAC

E. Harms12

fShot Set-Up – Description

Tevatron

Proton source

Main InjectorRecycler

Antiproton source

13 May 02AAC

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fShot Set-Up – Description

Tevatron Main Injector Pbar sourceTerminate store &Return to 150 GeV

Check/correct closed orbit Cool 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 protons Provide protons for tuneup of beam lines

Orient Accumulator for unstacking

13 May 02AAC

E. Harms14

fShot Set-Up – Description

Tevatron

Proton source

Main InjectorRecycler

Antiproton sourceAP3

P2

P1

AP1

A1

MI-8

13 May 02AAC

E. Harms15

fShot 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

13 May 02AAC

E. Harms16

fShot 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

13 May 02AAC

E. Harms17

fShot 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

13 May 02AAC

E. Harms18

fShot Analysis/SDA

• Introduction

• Data

• Status

13 May 02AAC

E. Harms19

fShot 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.

13 May 02AAC

E. Harms20

fShot 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

13 May 02AAC

E. Harms21

fShot Analysis/SDA – Scalar Data

Sample Scalar data view for Pbars

13 May 02AAC

E. Harms22

fShot Analysis/SDA – Summary Report

ProtonIntensity E9

StepEfficiency%

CumulativeEfficiency%

PbarIntensityE9

StepEfficiency%

CumulativeEfficiency%

Accumulator 1026.00AP3 1016.56 99.08 99.08AP1 998.49 98.22 97.32P2 951.02 95.25 92.69P1 1022.25 107.49 99.63MI Inj 1123.51 109.91 109.50MI 8Gev 971.32 86.45 94.67MI 150Gev 1004.96 103.46 97.95Coalescing 9583.99 770.70 76.69 75.12Inject Protons 7823.90 77.84 77.84Pbar Injection porch 7713.03 98.58 80.48Inject Pbars 6605.13 85.64 68.92 688.10 89.28 67.07Before Ramp 6609.61 100.07 68.97 575.15 83.59 56.06Flattop 6345.75 96.01 66.21 513.86 89.34 50.08Squeeze 6211.13 97.88 64.81 498.35 96.98 48.57Initiate Collisions 6201.11 99.84 64.70 498.59 100.05 48.60Remove Halo 6070.53 97.89 63.34 487.87 97.85 47.55HEP 6095.33 100.41 63.60 484.70 99.35 47.24Initial Luminosity 20.24 CDF 18.61 DZeroShot Setup Time 135.22 min

13 May 02AAC

E. Harms23

fShot Analysis/SDA – Plots

Protons – 10 recent stores Pbars – 10 recent stores

13 May 02AAC

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fShot 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

13 May 02AAC

E. Harms25

fShot 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