# Presentation: 801598

## AGS RSVP Review

4-5 November 2004

RSVP Operations and D&D

Philip Pile
Collider-Accelerator Department
4 Nov 2004

- 4-5 November 2004
***RSVP Operations and D&D***
- Philip Pile
- Collider-Accelerator Department
- 4 Nov 2004

## Outline

- RSVP Operations
- Operations with RHIC
- Cost Basis
- RSVP D&D
- Final Comments

**RSVP Operations and D&D**

## 
Support for experiments and projects not related to RHIC

During RHIC Operations, RHIC Experiments have first priority for support

Work during maintenance periods (shutdowns) is scheduled in support of non-RHIC       activities consistent with available resources once commitments to RHIC experiments and the RHIC facility are satisfied.

AGS Fixed target experiments are presently not supported concurrent with RHIC operations since HEP base support has terminated (FY03). AGS fixed target experiments are still supported but are scheduled to operate outside RHIC operations and only if this can be done with minimal impact to RHIC activities. Full operations costs are recovered. Two AGS experiments ran in this mode in FY2004 – K0PI0 (RSVP Experiment) and a US Atlas test

The NASA Space Science Laboratory (off the Booster), commissioned in FY2003, came with full operations in FY 2004 with two stand-alone runs and one run concurrent with RHIC operations. NASA has provided funds for a 12 FTE base to support this work. 

***Support for experiments and projects not related to RHIC***
_***During RHIC Operations, RHIC Experiments have first priority for support***_
- Work during maintenance periods (shutdowns) is scheduled in support of non-RHIC       activities consistent with available resources once commitments to RHIC experiments and the RHIC facility are satisfied.
- AGS Fixed target experiments are presently not supported concurrent with RHIC operations since HEP base support has terminated (FY03). AGS fixed target experiments are still supported but are scheduled to operate outside RHIC operations and only if this can be done with minimal impact to RHIC activities. Full operations costs are recovered. Two AGS experiments ran in this mode in FY2004 – K0PI0 (RSVP Experiment) and a US Atlas test
- The NASA Space Science Laboratory (off the Booster), commissioned in FY2003, came with full operations in FY 2004 with two stand-alone runs and one run concurrent with RHIC operations. NASA has provided funds for a 12 FTE base to support this work.

**The Present Situation**

## RSVP Operations Plan

- AGS slow extracted beam (SEB) development for RSVP will run concurrent with RHIC collider operations when possible, however
- Running concurrent with RHIC operations will require base personnel (12 FTE’s plus 4-6 experiment specific FTE’s) support for the AGS fixed target operation
- Without base support short runs are costed on a per hour basis for personnel and materials and scheduled outside of RHIC operations
**Such runs are considered on a case-by-case basis and are carried out only if the impact on RHIC shutdown work is acceptable**
- During RHIC injection all other machine operations will cease, so as to allow full attention to this process.

**RSVP Operations Plan**

## Slide 5

## RSVP Operation with RHIC

-   AGS operation for RSVP only when RHIC is at store
-   RHIC at store: presently ~ 90 hrs/week (55%), goal: ~ 100 hrs/week (60%)
**  ****Au – Au:**
- Typical 4-hour store length determined by Intra-Beam-Scattering (IBS)
- With future luminosity upgrade (RHIC II) 4-hour store length determined by “burn-off”
- Minimum refilling time is 5 – 10 minutes, typically takes < 1 hour
- Fast injector switching between RSVP and RHIC mode beneficial
**  ****p – p:**
- Typical store length: 8 – 10 hours
- Slower injector switching possible and necessary to ramp super-conducting AGS Siberian snake

## RHIC Run-4 – one week of physics stores

**design****luminosity**

- Week 9 Feb to 17 Feb [66% of calendar time in store]

**enhanced****luminosity**

**60e9 Au****intensity**

**Beam experiments**

## Refill of RHIC

**Refill of RHIC**

- End of store

- Start of store

- 40 min.

## RHIC Run-4 – accelerator availability

- Possible improvements:- improve radiation   hardness of electronics
- - more reliable PS  [potential for 5-10h/wk]
- - more automation- closer injector integration

- Data by P. Ingrassia

## RHIC time in store

-  target

## Time to Restore SEB

**Time to Restore SEB**

## Total Accelerated Protons at the AGS

- Slow extracted beam (Kaon decay)
- Fast extracted beam (g-2)
- Note: Lower total accelerated protons in later years           due to much shorter running time

- With RHIC

## Operations Plan for RSVP, General Assumptions:

**Operations Plan for RSVP, General Assumptions:**
-  RHIC Cryo Operations assumes "Constant Effort" budget - 27 weeks per year
- AGS not available for RSVP during 1st 7 weeks of RHIC operations and for 4 weeks/additional beam during a given year
-   Last week of RHIC operations is considered running outside RHIC operations since this is cryo warm-up week (injectors not running)
-   AGS is available for RSVP the balance of the time
-   Additional running outside RHIC operations possible, reserving 15 weeks for shutdown work
- 40 TP/sec available for MECO at 7.5 GeV/c, 100 TP/5.3 sec available for K0PI0
-   80 full intensity hours/week are available for RSVP experiments during RHIC Operations
-  120 full intensity hours/week are available for RSVP experiments outside RHIC Operations
-   RSVP construction ends in FY2010 with an engineering run and accounting for integrated protons begins in first physics production year (FY2011)

## Example Operations Plan utilizing maximum available weeks/year

## RSVP D&D Costs(work in progress)

- The D&D plan for RSVP is to restore the AGS floor to the pre-RSVP condition within a reasonable number of years after the end of experiment operations
- It is recognized that the experiments will generate significant amount of beam activated components that will have to be disposed of and a 2-3 year “cool-down” period will be required before D&D can begin
- The slow beam transport will decommissioned starting at the point where it leaves the switchyard shielding to the RSVP targets
- All commonly reused valuable equipment such as magnets will be stored except for equipment specific to the RSVP experiments, these will be considered radioactive waste

## RSVP D&D Costs(work in progress)

- The cost of removing and disposing of the experiments will be included
- Shielding under 5mr will be left in building 912
- All concrete floor areas over 5mr will be removed and replaced, but no radioactive soil remediated
- Power and water modifications for RSVP will be removed except where considered an upgrade to existing utilities
- The AGS and Booster will remain operational for RHIC when RSVP is complete so the only D&D envisioned will be for those components added specifically for RSVP and not required for future operation
- It is anticipated that incremental D&D costs will be assessed yearly over the length of the planned operation of the RSVP project, by a panel appointed by the DOE and NSF, with funds placed in a suitable escrow account

## K0PI0 D&D Cost Estimate (work in progress)

**K0PI0 D&D Cost Estimate **_(work in progress)_

-  (K$’s)

**Labor                       disposal cost              Total**

**These cost estimates have NOT been reviewed **
**and are presented for general guidance only!**

## MECO D&D Cost Estimate (work in progress)

-  (K$’s)

**Labor                       disposal cost              Total**

**These cost estimates have NOT been reviewed **
**and are presented for general guidance only!**

## D&D Costs Roll-up

**RSVP D&D Cost Summary**
- The below costs are in millions of FY 2003 dollars, _***fully burdened***_
_**Experiment**_**	****	****	****	**_**Estimated D&D Cost**_
- K0PI0					$5.3
- MECO					$5.3
- Contingency				$2.7
**Total Estimated Cost****	****	****$13.3**

**These cost estimates have NOT been reviewed **
**and are presented for general guidance only!**

## Conclusion

**  ****RSVP operation is possible with minimal impact on RHIC running**
**  ****RSVP experiments will likely require over 8 years of operation to reach their goals**
- An aggressive approach to beam development must be taken
- RSVP operations should use all available weeks during a given year

## 

Supplemental Information

**Supplemental Information**

## Typical RHIC stores

- 4 hours

**Au -Au**

**p - p**

## AGS Peak Proton Intensities

- World record proton synchrotron intensity!

- 8  1013

- 6  1013

- 4  1013

- 2  1013

- 0

- Peak proton intensity

- With RHIC, no 2nd harmonic Booster cavity