Star-fst-l mailing list

["Ye, Zhenyu" <yezhenyu AT uic.edu>]

FYI.

Begin forwarded message:

From: "Ruan, Lijuan" <ruan AT bnl.gov>

Subject: FW: FXT program readiness

Date: December 20, 2022 at 5:04:29 AM CST

To: "staropsman-l AT lists.bnl.gov" <staropsman-l AT lists.bnl.gov>

Cc: Zhenyu Ye <yezhenyu2003 AT gmail.com>, cebra <cebra AT physics.ucdavis.edu>, "Videbaek, Flemming" <videbaek AT bnl.gov>

Dear OPS MGT and task force,

We are officially approved to install the new fixed targets at STAR. There might be a slight shift in terms of the exact starting date for the beam pipe related work due to key person’s schedule. Rahul will send out an updated schedule accordingly to the ops list. Thanks everyone who helped. Happy holidays!

 

Lijuan

 

From: Gao, Haiyan <hgao AT bnl.gov>
Date: Monday, December 19, 2022 at 10:55 PM
To: Ruan, Lijuan <ruan AT bnl.gov>
Cc: helen.caines AT yale.edu <helen.caines AT yale.edu>, Fischer, Wolfram <wfischer AT bnl.gov>, Dunlop, James C <dunlop AT bnl.gov>, Minty, Michiko <minty AT bnl.gov>, Michnoff, Robert J <michnoff AT bnl.gov>, Chan, David <dchan AT bnl.gov>
Subject: Re: FXT program readiness

Dear Lijuan and Helen:

 

Please proceed with the plan you outlined below.

 

Best, Haiyan

 

*****************************************************************

Haiyan Gao

Associate Laboratory Director, Nuclear and Particle Physics

Brookhaven National Laboratory

Building 510, 1-34

Email: hgao AT bnl.gov

Phone: 631-344-2431 (office), 631-461-2867 (cell)

 

*****************************************************************

 

From: Ruan, Lijuan <ruan AT bnl.gov>
Date: Friday, December 16, 2022 at 1:09 PM
To: Gao, Haiyan <hgao AT bnl.gov>
Cc: helen.caines AT yale.edu <helen.caines AT yale.edu>
Subject: FXT program readiness

Hi Haiyan,

  We made good progress since our meeting last week. We received target material early this week. Bill Struble, our mechanical technician machined all the targets, sent the carbon targets (1 mm and 2.5 mm thick) to CAD group (Dan Weiss) for the test.

Dan basically put the targets in the same environment as in the real FXT run for one hour, and sent them back to STAR for inspections. Rahul Sharma, JH Lee and myself all looked at those targets and concluded both 1 mm and 2.5 mm thick carbon targets are fine. STAR will go with 1 mm thick carbon target.

Attached is the picture showing the dummy target holder and targets.

 

Rahul Sharma had further discussion with Dan Weiss and STAR forward silicon group and they would like to get the beam pipe work done earlier if we can get official approval. They would like to start the work around Dec 27 rather than Jan 5. 

 

Is it possible to get an official approval before Dec 27?

 

Lijuan