Difference between revisions of "ITk Endcap At Nikhef"

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(Add pressure, leak and alcohol tests)
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[[File:Manifolds_status_06-06-2023.jpg|alt=|none|thumb|500x500px|Manifolds production status on 06/06/2023]]
 
[[File:Manifolds_status_06-06-2023.jpg|alt=|none|thumb|500x500px|Manifolds production status on 06/06/2023]]
  
−
====== Working schedule of Pranati and Ali: ======
+
====== Summer 2023: Pressure tests + leak tests + alcohol flushing ======
−
- Thursday 15th: first pair of inlet manifolds, aka '''disk 2 inlet manifolds A and B'''. Then all EC1 disk 2 manifolds would be ready. And change to '''disk 1 inlet manifolds A and B'''.
+
Every manifold is tested at high pressure and a check for leaks is performed. Afterwards, every manifold is internally cleaned with alcohol.
  
−
- Friday 16th: move on to '''disk 1 ''outlet'' manifolds A and B'''. Then all EC1 disk 1 manifolds would be ready. And continue with '''disk 3 ''outlet'' manifolds A and B'''.
+
Test reports and status available here: [https://www.cernbox.cern.ch/files/spaces/eos/user/m/marcelv/ITK-map/Production/Results/Sub Assembly/Pressure test SA cernbox.cern.ch/files/spaces/eos/user/m/marcelv/ITK-map/Production/Results/Sub_Assembly/Pressure_test_SA]
−
 
+
{| class="wikitable mw-collapsible"
−
- Thursday 22nd: finish with disk 3: '''disk 3 inlet manifolds A and B'''. Then all EC1 disk 3 manifolds would be ready.
+
|+Status of the inlet and outlet manifolds for EC1 (A-B) and EC2 (C-D)
−
 
+
!Inlet
−
- Monday 26th: if previous days' objectives were not achieved, day to wrap things up (or do more A-B manifolds if they get ready by then). Also, Andrea García starts the '''pressure tests''' with disk 1 inlet manifolds.
+
manifold
 +
!Produced
 +
!Preassure
 +
tested
 +
!Leak
 +
tested
 +
!Alcohol
 +
flushed
 +
!Ready for
  
−
In July, Osama continues with the manifolds of EC2.
+
installation
−
{| class="wikitable"
 
−
|+Status of the inlet and outlet manifolds for EC1 (A-B) and EC2 (C-D)
 
−
!Outlet Manifold
 
−
!Fabricated
 
−
!Alcohol flushing cleaning
 
−
!Preassure test
 
 
!
 
!
−
!Inlet manifold
+
!Outlet
−
!Fabricated
+
manifold
−
!Alcohol flushing cleaning
+
!Produced
−
!Preassure test
+
!Preassure
 +
tested
 +
!Leak
 +
tested
 +
!Alcohol  
 +
flushed
 +
!Ready for
 +
installation
 
|-
 
|-
 
|Disk 0 - A
 
|Disk 0 - A
 +
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 +
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|Disk 0 - A
 
|Disk 0 - A
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|Disk 0 - B
 
|Disk 0 - B
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|Disk 0 - B
 
|Disk 0 - B
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|Disk 0 - C
 
|Disk 0 - C
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|Disk 0 - C
 
|Disk 0 - C
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|Disk 0 - D
 
|Disk 0 - D
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|Disk 0 - D
 
|Disk 0 - D
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 +
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|-
 
|-
 
|Disk 1 - A
 
|Disk 1 - A
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|YES
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|✓
 +
|
 +
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|
 
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|Disk 1 - A
 
|Disk 1 - A
−
|YES
+
|✓
 +
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 +
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|
 
|-
 
|-
 
|Disk 1 - B
 
|Disk 1 - B
 +
|✓
 +
|26/07/23
 +
|26/07/23
 +
|08/09/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|
 
|
 
|Disk 1 - B
 
|Disk 1 - B
 +
|✓
 +
|01/08/23
 +
|01/08/23
 +
|03/10/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 1 - C
 
|Disk 1 - C
 +
|✓
 +
|27/07/23
 +
|27/07/23
 +
|08/09/23
 
|YES
 
|YES
 
|
 
|
 +
|Disk 1 - C
 +
|✓
 
|
 
|
 
|
 
|
−
|Disk 1 - C
 
−
|YES
 
 
|
 
|
 
|
 
|
 
|-
 
|-
 
|Disk 1 - D
 
|Disk 1 - D
−
|YES
+
|✓
 +
|27/07/23
 +
|27/07/23
 
|
 
|
 
|
 
|
 
|
 
|
 
|Disk 1 - D
 
|Disk 1 - D
 +
|✓
 +
|02/08/23
 +
|02/08/23
 +
|03/10/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 2 - A
 
|Disk 2 - A
 +
|✓
 +
|12/07/23
 +
|13/07/23
 +
|11/08/23
 
|YES
 
|YES
−
|DONE - 25/05/2023
 
−
|
 
 
|
 
|
 
|Disk 2 - A
 
|Disk 2 - A
 +
|✓
 +
|28/07/23
 +
|28/07/23
 +
|14/09/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 2 - B
 
|Disk 2 - B
 +
|✓
 +
|11/07/23
 +
|11/07/23
 +
|11/08/23
 
|YES
 
|YES
−
|DONE - 25/05/2023
 
−
|
 
 
|
 
|
 
|Disk 2 - B
 
|Disk 2 - B
 +
|✓
 +
|28/07/23
 +
|28/07/23
 +
|14/09/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 2 - C
 
|Disk 2 - C
 +
|✓
 +
|13/07/23
 +
|13/07/23
 +
|11/08/23
 
|YES
 
|YES
−
|DONE - 31/05/2023
 
−
|
 
 
|
 
|
 
|Disk 2 - C
 
|Disk 2 - C
 +
|✓
 +
|31/07/23
 +
|31/07/23
 +
|20/09/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 2 - D
 
|Disk 2 - D
 +
|✓
 +
|18/07/23
 +
|19/07/23
 +
|11/08/23
 
|YES
 
|YES
−
|DONE - 31/05/2023
 
−
|
 
 
|
 
|
 
|Disk 2 - D
 
|Disk 2 - D
 +
|✓
 +
|31/07/23
 +
|31/07/23
 +
|20/09/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|-
 
|-
 
|Disk 3 - A
 
|Disk 3 - A
 +
|✓
 +
|20/07/23
 +
|20/07/23
 +
|31/08/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|
 
|
 
|Disk 3 - A
 
|Disk 3 - A
−
|YES
+
|✓
 +
|01/08/23
 +
|01/08/23
 
|
 
|
 
|
 
|
 
|-
 
|-
 
|Disk 3 - B
 
|Disk 3 - B
 +
|✓
 +
|24/07/23
 +
|24/07/23
 +
|31/08/23
 
|YES
 
|YES
−
|
 
−
|
 
 
|
 
|
 
|Disk 3 - B
 
|Disk 3 - B
−
|YES
+
|✓
 +
|02/08/23
 +
|02/08/23
 
|
 
|
 
|
 
|
 
|-
 
|-
 
|Disk 3 - C
 
|Disk 3 - C
 +
|
 +
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|
 
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|Disk 3 - C
 
|Disk 3 - C
 +
|✓
 +
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|-
 
|Disk 3 - D
 
|Disk 3 - D
 +
|
 +
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|Disk 3 - D
 
|Disk 3 - D
 +
|✓
 +
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|-
 
|-
 
|Disk 4 - A
 
|Disk 4 - A
 +
|✓
 +
|26/07/23
 +
|26/07/23
 
|
 
|
 
|
 
|
 +
|
 +
|Disk 4 - A
 
|
 
|
 
|
 
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−
|Disk 4 - A
 
 
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|-
 
|Disk 4 - B
 
|Disk 4 - B
 +
|✓
 +
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|Disk 4 - B
 
|Disk 4 - B
 +
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 +
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|-
 
|-
 
|Disk 4 - C
 
|Disk 4 - C
 +
|
 +
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|
 
|
 
|
 
|
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|
 
|
 
|Disk 4 - C
 
|Disk 4 - C
 +
|✓
 +
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|
 
|
 
|
 
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|-
 
|-
 
|Disk 4 - D
 
|Disk 4 - D
 +
|
 +
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|
 
|
 
|
 
|
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|
 
|
 
|Disk 4 - D
 
|Disk 4 - D
 +
|✓
 +
|
 
|
 
|
 
|
 
|
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|-
 
|-
 
|Disk 5 - A
 
|Disk 5 - A
 +
|
 +
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|
 
|
 
|
 
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|
 
|Disk 5 - A
 
|Disk 5 - A
 +
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 +
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|-
 
|-
 
|Disk 5 - B
 
|Disk 5 - B
 +
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 +
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|
 
|
 
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|Disk 5 - B
 
|Disk 5 - B
 +
|
 +
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|
 
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|-
 
|-
 
|Disk 5 - C
 
|Disk 5 - C
 +
|
 +
|
 
|
 
|
 
|
 
|
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|
 
|
 
|Disk 5 - C
 
|Disk 5 - C
 +
|✓
 +
|
 
|
 
|
 
|
 
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|-
 
|-
 
|Disk 5 - D
 
|Disk 5 - D
 +
|
 +
|
 
|
 
|
 
|
 
|
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|
 
|
 
|Disk 5 - D
 
|Disk 5 - D
 +
|✓
 +
|
 
|
 
|
 
|
 
|

Revision as of 15:01, 3 October 2023

Back to ITk Endcap Homepage

The construction of the ITk Strip End-caps is done at Nikhef. On this page, you will find the information related to that process.

EC1 structure on 25/05/2023

Author: Andrea García Alonso

Wheel production

Wheel conduction after assembly

Wheel Conduction

Wheel and Blade production documentation & characterisation

Wheel and Blade production documentation & characterisation

Wheel locking point measurements

Wheel locking point measurements

Wheel QA/QC

Wheel QA/QC

Inner ring measurements

Inner Ring measurements


End-cap structure

- Characterization of mechanical behaviour EC structure at cold temperatures

EC structure temperature studies

- Stiffener disk measurements

The stiffening disks of the End-caps, made of Ultem foam with a carbon-fiber face-sheet, were produced and tested at Nikhef. The stiffening disks provide structural stiffness to the EC and act as a thermal barrier. To certify that the three manufactured stiffening disks comply with the specifications, an ATLAS internal note was written to explain the thermal deformation tests carried out at Nikhef, at the end of 2021 and the beginning of 2022. Although it is quite difficult to measure small thermal deformations on such big structures, three tests were performed: temperature changes, local temperature gradients, and global temperature gradients. The results show that the deformations in two disks are consistent with the specifications. The remaining disk is chosen as spare since it deforms above expected, although still mechanically acceptable.

You can find the ATLAS internal note called "Temperature deformation tests of the ITk strip end-cap stiffening disks produced at Nikhef" here: https://cds.cern.ch/record/2824857. In case you don't have access, please contact Andrea García Alonso.

One of the thermal deformation tests on one of the stiffener disks. Picture of 21-01-2022

Stiffener Disk

- PP1 patch panel

PP1 Patch Panel

- Cooling manifolds

The ITk strip End-cap detector consists of 6 wheels that each accommodate 32 petals. The petals are cooled with a 2-phase CO2 system using cooling service modules that serve 16 petals, corresponding to half a wheel.

Cooling manifold
Status on 1st June 2023:

Disk 0 manifolds fabrication is not finished

All manifolds for disk 1 and disk 2 are fabricated, the As and Bs for disk 3 are fabricated as well. Disk 2, outlet manifolds A, B, C and D are cleaned by 31st May 2023.

Manifolds production status on 06/06/2023
Summer 2023: Pressure tests + leak tests + alcohol flushing

Every manifold is tested at high pressure and a check for leaks is performed. Afterwards, every manifold is internally cleaned with alcohol.

Test reports and status available here: cernbox.cern.ch/files/spaces/eos/user/m/marcelv/ITK-map/Production/Results/Sub_Assembly/Pressure_test_SA

Status of the inlet and outlet manifolds for EC1 (A-B) and EC2 (C-D)
Inlet

manifold

Produced Preassure

tested

Leak

tested

Alcohol

flushed

Ready for

installation

Outlet

manifold

Produced Preassure

tested

Leak

tested

Alcohol

flushed

Ready for

installation

Disk 0 - A Disk 0 - A
Disk 0 - B Disk 0 - B
Disk 0 - C Disk 0 - C
Disk 0 - D Disk 0 - D
Disk 1 - A ✓ Disk 1 - A ✓
Disk 1 - B ✓ 26/07/23 26/07/23 08/09/23 YES Disk 1 - B ✓ 01/08/23 01/08/23 03/10/23 YES
Disk 1 - C ✓ 27/07/23 27/07/23 08/09/23 YES Disk 1 - C ✓
Disk 1 - D ✓ 27/07/23 27/07/23 Disk 1 - D ✓ 02/08/23 02/08/23 03/10/23 YES
Disk 2 - A ✓ 12/07/23 13/07/23 11/08/23 YES Disk 2 - A ✓ 28/07/23 28/07/23 14/09/23 YES
Disk 2 - B ✓ 11/07/23 11/07/23 11/08/23 YES Disk 2 - B ✓ 28/07/23 28/07/23 14/09/23 YES
Disk 2 - C ✓ 13/07/23 13/07/23 11/08/23 YES Disk 2 - C ✓ 31/07/23 31/07/23 20/09/23 YES
Disk 2 - D ✓ 18/07/23 19/07/23 11/08/23 YES Disk 2 - D ✓ 31/07/23 31/07/23 20/09/23 YES
Disk 3 - A ✓ 20/07/23 20/07/23 31/08/23 YES Disk 3 - A ✓ 01/08/23 01/08/23
Disk 3 - B ✓ 24/07/23 24/07/23 31/08/23 YES Disk 3 - B ✓ 02/08/23 02/08/23
Disk 3 - C Disk 3 - C ✓
Disk 3 - D Disk 3 - D ✓
Disk 4 - A ✓ 26/07/23 26/07/23 Disk 4 - A
Disk 4 - B ✓ Disk 4 - B
Disk 4 - C Disk 4 - C ✓
Disk 4 - D Disk 4 - D ✓
Disk 5 - A Disk 5 - A
Disk 5 - B Disk 5 - B
Disk 5 - C Disk 5 - C ✓
Disk 5 - D Disk 5 - D ✓

Cleanroom at Nikhef

Cleanroom

Miscellaneous documents

Retrieved from "https://wiki.nikhef.nl/atlas/index.php?title=ITk_Endcap_At_Nikhef&oldid=5149"