# Presentation: 682280

## Week in Review: 06/23/03 –06/30/03

**  ****Keith Gollwitzer – FNAL**

- Stores and Operations Summary
- Standard Plots
- New Beam Studies Criteria

- All Experimenters' Mtg - 30 Jun 03

## Stores Summary

| Store | Initial
Lum.
(E30) | Deliv’d
Lum. (nb-1) | Termination | Time
(hr) | Stack
Size
(mA) | Comments |
| --- | --- | --- | --- | --- | --- | --- |
| 2715 | 37.2 | 1361 | Intentional | 20.6 | 158 | Continued from previous week |
| 2718 | 39.4 | 1612 | Intentional | 19.8 | 180 |  |
| 2720 | - | 0 | Quench | - | 126 | High Losses during Squeeze |
| 2723 | 30.6 | 1107 | Intentional | 17.4 | 118 |  |
| 2725 | 33.8 | 1297 | Intentional | 19.2 | 144 | 1st pbar transfer had no 53MHz |
| 2727 | 36.2 | 1422 | Intentional | 19.2 | 159 | Orbit smooth done at End of Store |
| 2728 | 35.8 | 670 | Abort | 7.0 | 164 | Lightning |
| 2734 | 30.7 | 1132 | Intentional | 18.0 | 127 | Orbit smooth done at End of Store |
| 2736 | 32.8 | - | On Going | - | 136 | All of store counts for next week |

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## 2nd best week

**Integrated Luminosity for the Week**

- Experiment Access

- Beam Maintenance

- Quench during Squeeze

- Lightning causes Abort

- Beam Studies

- 2nd best week

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## Operations Summary

- Lost Stores
- High losses during squeeze caused quench
- Had been lower chromoticities; reverted back
- Still have high losses in same step in the squeeze
- Lightning; looked like Dzero pulled abort (false signal)
- Other Problems
- Wrong RF curve loaded for unstacking
- BRF9 many trips as well as PA replacement.
- ORBMP flow switch now fully open
- Short batch kicker MKS08 tube had to be replaced
- Compensation with other kickers did not work
- Continual tuning of proton source; many trips by Booster loss monitors

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## Slide 5

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## Slide 6

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## New Beam Studies Criteria

***Goal*** to reach 225pb-1 prior to Aug 25
- From today, need to average 6.05pb-1/week.
- Operations History
- From mid-Feb to mid-Jun: averaged 4.7pb-1/week.
- Accelerator complex runs less than optimal during Jul & Aug (heat, humidity, lightning, power glitches....)
- More focus on the ***Goal***
- Dedicated studies and/or non maintenance accesses
- Criteria: the integration rate to reach the ***Goal*** be < 4.7pb-1/week
- Semi-parasitic studies (take away stacking cycles)
- Last ~6hrs of stacking period during normal store (~18-20hr)
- Stack fast @ lower stacks; studies can have 10-20% effect on stack rate
- Prioritized studies list: Run 2, Run 2 upgrades, NUMI, SY120
- Beam Maintenance (& EoS) studies as needed or via opportunity

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03

## Brief Summary

- The week
- 2nd best integrated week with all initial luminosities between 30-40e30cm-2s-1
- Two aborted stores
- 2 periods of TeV beam studies after store losses
- 117hrs of stores (a record?)
- FY03 total is 176.7pb-1; 8 weeks to shutdown
- Goal for this week
- Stack and Store

- K. Gollwitzer - FNAL

- All Experimenters' Mtg - 30 Jun 03