[Halld] Fw: [ATLis] COMMENT ON: CEBAF/Halls PSS Certification

[Keith Blackburn]

Looks like PSS would like to do some testing this afternoon.


Keith Blackburn
[cid:df1e1d0d-429f-487c-863f-319d457d918d]
757-269-6350 Hall D
757-269-7063 TED


________________________________
From: Daniel Moser <moser at jlab.org>
Sent: Monday, March 3, 2025 8:37 AM
To: Scot Spiegel <spiegel at jlab.org>; Timothy Whitlatch <whitey at jlab.org>; Keith Blackburn <keithb at jlab.org>
Cc: Jerry Kowal <jkowal at jlab.org>; Scott Bruhwel <sbruhwel at jlab.org>; Shawn Frierson <frierson at jlab.org>; Katheryne Price <kprice at jlab.org>
Subject: Fw: [ATLis] COMMENT ON: CEBAF/Halls PSS Certification

Scot, Tim, Keith,

This morning at the 8AM SSG relayed that they have a few more functional PSS Certification items related to Hall D and Hall D Tagger to complete. They're hoping to knock these out this afternoon, but would need exclusive access to the Hall and Tagger.

Would 1500 today work for SSG to have Hall and tagger?

Thanks,
Daniel

________________________________
From: moser at jlab.org <moser at jlab.org>
Sent: Monday, March 3, 2025 8:35 AM
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Subject: [ATLis] COMMENT ON: CEBAF/Halls PSS Certification

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View Task in Web Browser<https://tasklists.jlab.org/atlis/tasks/112021>
CEBAF/Halls PSS Certification
________________________________
Recent Comments

2025-03-03 08:35 COMMENT by moser

>From this morning's 8AM meeting: Desire to lock-up Hall D and Hall D Tagger this afternoon to complete some functional PSS Certification items missed last week. Does 1500 work for lock-ups of Hall D and Hall D Tagger?

BSY can be locked up whenever for LAM1C T/Sing by DC Power (will require PSS admin lock removal).

2025-02-26 20:47 COMMENT by sbruhwel

We finished the BCM tests from yesterday, tested the BSY 1C,2C,3C and LAM3C box supplies PSS interface and worked as designed. We where not able to test the LAM1C or TSB5C. DC power will work on these supplies and we will test them when operational. We also have one test that we needed the ILD to be unlocked to perform but couldn't unlock the dump because there are personnel locks on it and couldn't get them removed. We still need to perform the BCM/kicker tests and pockel cell tests that requires beam for the tests.

2025-02-26 11:55 COMMENT by frierson

UPDATE: I'm hearing that there are BCM tests that need xD to be closed up in order to complete. I have informed the hall about this and they will clear the hall by 1400 to allow lock ups.

________________________________
ePAS Permits

The ePAS documents linked to the task when this email was sent.

Document
Status
Title
JLab-PTW-3291<https://epas-rk95.prometheusgroup.app/Permit/General/Default.aspx?PermitID=3892>
Complete
CEBAF / Halls PSS Certification 2024
JLab-PTW-3291 rev 1<https://epas-rk95.prometheusgroup.app/Permit/General/Default.aspx?PermitID=7569>
Complete
CEBAF / Halls PSS Certification 2024
JLab-PTW-3291 rev 2<https://epas-rk95.prometheusgroup.app/Permit/General/Default.aspx?PermitID=8529>
Complete
CEBAF / Halls PSS Certification 2024
JLab-PTW-3291 rev 3<https://epas-rk95.prometheusgroup.app/Permit/General/Default.aspx?PermitID=8929>
OnIssue
CEBAF / Halls PSS Certification 2024
JLab-PR-3291<https://epas-rk95.prometheusgroup.app/Application/General/Default.aspx?ApplicationID=3042>
PermitIssued
CEBAF / Halls PSS Certification 2024
________________________________
Description of Task

PSS System and its components must be periodically tested to assure proper function and adequate personnel protection. SSG will perform PSS Certification tests of all segments of the CEBAF ring and all experimental halls. This task is initiated with the administrative LOTO of PSS interlocked. This first step will be performed at the beginning of SAD.

Impact Statement

Task requires locking up sections of the machine and halls each day per schedule (subject to change):

Day 1 - Halls A, B, C Day 2 - BSY, S. Linac + (Halls A, B, C backup) Day 3 - N. Linac, Hall D, Tagger + (S. Linac backup) Day 4 - N. Linac, INJ + (Hall D, Tagger backup) Day 5 - CARMS: All Segments + (reminder of Static Tests)

Day 6 - Repairs, retests as necessary (any segment) Day 7 - Functional: All Segments Day 8 - Functional: All Segments Day 9 - Functional: All Segments Day 10 - Backup

Any scheduling changes or additional dates will be communicated to affected parties ASAP.

Hardware. Software. Engineering. or Design Changes Required

N/A

Special Hazards/Safety Considerations

The PSS Static Certification Test procedures require that personnel are present in the beam enclosure while the CEBAF/Halls PSS is configured for operation of the PSS interlocked equipment generating hazards in the beam enclosure and the pre-mitigation risk code in this configuration is assessed at level 4. These hazards are mitigated to risk code 1 by LOTO of all PSS interlocked hazard generating equipment as described in the SSG Certification procedure, making it safe for personnel to be present in the beam enclosure during the PSS Static Certification Tests.

Oxygen Deficiency Hazards present in the beam enclosure are mitigated by installed and operational ODH Monitoring System and passive controls like lintels and vent stacks.

Special Checkout Instructions

SSG will use PSS Certification checklists to verify system's functionality.

Backout Procedure

N/A

Status


Tasklist:
ATLis
Task ID:
112021
Status:
OK
Time Estimate:
336 hours
Required PSS:
NA
Priority:
Next Shutdown
Scheduled:
2025-02-26
Created:
2024-05-13
Updated:
2025-02-26
Created By:
J_Kowal
Created For:
SSG
Responsible:
Jerry Kowal + SSG

© 2025 Laravel. All rights reserved.
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