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Subject: Commissioning and running of sPHENIX

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[Sphenix-run-l] notes from the 9 o'clock meeting (6/12)

From: Stefan Bathe <stefan.bathe AT baruch.cuny.edu>
To: sphenix-run-l AT lists.bnl.gov
Subject: [Sphenix-run-l] notes from the 9 o'clock meeting (6/12)
Date: Mon, 12 Jun 2023 09:47:44 -0400

RHIC (see attached slides)

- possibly try un-cogging at end of this store to measure beam related, but non-collision related, backgrounds

- then controlled access for STAR and sPHENIX MVTX cooling

- next store 111x111 bunches to test RHIC

- then back to 56x56 with leveling for TPC GEM conditioning

- APEX Wednesday

- July 19 EBIS (baking out right now)

STAR

- vertex appears to be shifted since Saturday 5-10 cm towards 7 o’clock

- magnet: currently running with half field, couldn’t hold full field, turn on chiller first thing tomorrow morning

sPHENIX (see linked slides)

- another magnet trip

- first collision data with MVTX

sdcc.bnl.gov

---------------------------------------------------------------------------------
Stefan Bathe

Professor of Physics
Baruch College, CUNY
and RIKEN Visiting Scientist

Baruch: BNL:
17 Lexington Ave Bldg. 510
office 940 office 2-229
phone 646-660-6272 phone 631-344-8490
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[Sphenix-run-l] notes from the 9 o'clock meeting (6/12), Stefan Bathe, 06/12/2023