[Dsg-halla_ecal] Supermodule inventory

Marc Mcmullen mcmullen at jlab.org
Wed Feb 9 17:00:07 EST 2022


Hi Albert,

I completed the inventory of all the supermodules on 02/08/2022. I have also counted the lead-glass assemblies and the frames. These numbers will let you know what will be needed to complete 192 supermodules.

I counted a total 153 supermodules on all the shelves in EEL 126 and in the test stand in the Test Lab. This includes the 20 DSG has assembled this year. There is a balance of 39 supermodules to reach 192. The types of modules are not even, there are 81 short module and 72 long modules. In addition there are only 334 lead-glass assemblies which are already wrapped with film and copper in EEL 122 and 126. Lastly, I counted all the pre-assembled frames. There are only 32 total frames. We have enough short frames, but more of the longer frames are needed. I have written in comments on the parts which have shortages which need to be addressed in order to complete the project. The "Need" column does not account for any spares of any parts or supermodules.

I will be at the lab tomorrow to look at the leftover frame parts we found in EEL 122, at best these parts might make 3 long frames. I will not add them to the count until they are pre-assembled and checked.

Regards,
Marc





Parts

Need

On-hand

Balance

Comment

39 Supermodules

Lead-glass assembly

351

334

-17

Lead-glass assemblies are being wrapped and copper clad in EEL 122.

When will be ready for assembly?

Springs

351

0

-351

600 springs have been ordered, delivery expected in March per Albert

Short frames

15

17

2

Long frames

24

15

-9

Parts to make frames need fabricated.

Can these be ordered?

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