# Presentation: 826860

## RICH SCHEDULE

- Staged RICH detector construction plan

- Marina Artuso

## Introduction

- The construction and installation schedule of the BTeV Ring Imaging Cherenkov detector has been revised to enhance the safety factors that will insure that its completion will be achieved within the proposed timeline.
- The strategy adopted is:
- Advancing the front end electronics schedule and thus reducing the floats associated with the gas radiator implementation.
- Staging the installation of the liquid radiator system, required to be fully implemented in a later date, thus enabling to meet simultaneously the constraints posed by the funding profile and the early availability of key components to insure that the schedule meets the “baseline” requirements.

## Description of project flow  WBS 1.3 (staged installation)

## WBS 1.3 total  construction cost

##                      Funding Profile Matching

| 673
 | 4551
 | 6256
 | 4154 | 845
 |
| --- | --- | --- | --- | --- |
| 719 | 4463
 | 5761 | 4300 | 1197
 |

**needed**

- expected

## M&S Obligation Profile

## Labor profile

##                   RICH  Labor Resources               WBS1.3

- Look at the total resources needed
- Physicists (incl. Postdocs, gs, ug)   	50 FTEs
- Engineering Support (mostly mech)     6 FTEs
- Technician, SR tech, Shop                  17  FTEs
- TOTAL					73 FTEs
- Contingency +28% [cost]
- No off-project labor; everybody on project included
- Syracuse group +FNAL ME and technician/shop labor during assembly work provides adequate manpower.

- Timeline constraints WBS 1.3

| RICH (1.3) | Ready by: | Needed by: |
| --- | --- | --- |
| RICH Tank ready to be installed | 10/9/07 | 9/1/08 |
| West MaPMT ready | 5/13/08 | 9/21/09 |
| East MaPMT ready | 6/8//08 | 11/2/09 |
| Bottom PMT ready | 12/22/08  | 7/15/10 |
| West PMT ready | 3/31/09  | 7/15/10 |
| East PMT ready | 7/12/09  | 7/15/10 |
| Gas purification system ready | 8/5/08 | 10/19/09 |
| Liquid radiator circ. system ready | 9/29/09 | 7/15/10 |

## Installation

- Stage I:
- Tank parts arrive at assembly hall to be welded
- Liquid radiator is mounted on the super-vessel
- Front window is mounted on the super-vessel
- Mirror is mounted inside the super-vessel
- Beam pipe is installed in the super-vessel and beam pipe to window seal is made
- Top PMT is installed
- Mirror tile is aligned
- Stage II:
- MaPMT array installation:
- W ready 13 May 08 and needed by 21 Sep 09
- E ready 23 Jun 08 and needed by 2 Nov 09
- Stage III
- Remaining PMT arrays installed
- Last PMT array ready 12 Jul 09 and needed 15 July 2010

## Responses to CD1 recommendations

- Recommendations:
- Test prototype detectors in C0 asap to gain experience in a hadron collider
- Measure neutron flux in various locations in C0
- Response:
- We are considering the possibility of taking some data in C0 with the LR prototype that will be used in the beam test of FY05.
- We are planning to investigate neutron and other particle backgrounds with more extensive simulations, taking advantage of complementary studies (CDF).

## Summary and Conclusions

- The schedule and installation plans of WBS 1.3 (RICH detector) have been refined and reorganized into a staged plan that insures reliable timeline in detector installation and commissioning.
- This very solid timeline is achieved within the constraints posed by the present funding profile and manpower available.