sPHENIX HCal discussion

[Stefan Bathe <bathe AT bnl.gov>]

Hello,

Here the requested outer HCal Assembly and Testing update:

- five sectors are fully assembled, tested, working, calibration runs taken, put away in storage ready for installation in sPHENIX.

- ten sectors are on the assembly tables; of those:

  - six are fully assembled (modulo thermistors, which only four of those have, see below) and are being tested

  - two are full assembled; they need electronics boxes, and then can be tested (also need thermistors)

  - two are missing signal cables and thermistors (see below)

- parts

  - signal cables and thermistors are coming in at a slower rate than anticipated

  - the rate for both is about one sector per week

  - this might sound OK since it matches the rate at which we need to assemble the sectors according to P6

  - but it actually limits the assembly speed; here’s how:

    - we are already three weeks behind due to delays in parts; at a rate of one per week, we will never be able to catch up

    - our labor resources are not steady; much of the work is done by visitors, which come in bursts; without a supply of parts in hand, we won’t be able to optimize the labor resources and will fall behind farther

Regards,

Stefan

— 

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Stefan Bathe

Professor of Physics
Baruch College, CUNY

Baruch:                                     BNL:
17 Lexington Ave                      Bldg. 510
office 940                                  office 2-229
phone 646-660-6272                phone 631-344-8490
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On Dec 21, 2020, at 11:31 AM, Lajoie, John G [PHYSA] <lajoie AT iastate.edu> wrote:

Dear HCAL’ers: 

 

Due to a conflict with the iHCAL, EMCal and TPC installation review, there will be NO HCAL meeting this Tuesday, December 22^nd.  I would ask Megan and Stefan to post brief updates to the HCAL list so everyone is up-to-date.

 

Our next HCAL meeting will be Tuesday, January 5^th.  Have a happy and safe holidays everyone!

 

Regards,

John Lajoie

 

John Lajoie

he, him, his

Professor of Physics

Iowa State University

 

(515) 294-6952

lajoie AT iastate.edu

 

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