sphenix-l AT lists.bnl.gov
Subject: sPHENIX is a new detector at RHIC.
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- From: "Yip, Kin" <kinyip AT bnl.gov>
- To: "sphenix-run-l AT lists.bnl.gov" <sphenix-run-l AT lists.bnl.gov>, "sphenix-l AT lists.bnl.gov" <sphenix-l AT lists.bnl.gov>
- Cc: "Toldo, Frank A" <fatoldo AT bnl.gov>, "Mills, James A" <mills AT bnl.gov>
- Subject: [Sphenix-l] HSSD detector disabled in sPHENIX
- Date: Wed, 7 Jun 2023 21:39:44 +0000
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Hello, Thanks to John Haggerty and Joel Vasquez's idea, I requested disabling HSSD detector to Ray Fliller (head of ESSHQ in C-AD) for sPHENIX. And actually, he and Wolfram were just discussing it. Anyway, from the email below, you can see that they have approved disabling HSSD in sPHENIX. But somehow for STAR, HSSD system somehow was in STAR's ASE and they can't run without it. So, STAR is turning
of their detectors right now ... until the current "smoke problem" disappeared. I'm not sure any of us can take credit for not having HSSD written in the ASE (Accelerator Safety Envelope) for sPHENIX 😁 But it does happen conveniently. Kin -------- Forwarded Message --------
Mike, et.al.
The HSSD systems in the STAR detector building are credited controls. Provision 3.24.6 in the RHIC ASE requires one of the two HSSD systems to remain on. Therefore, after discussions with STAR we are asking them to turn off their detector. Once CAD has confirmed that the detector is off, and cannot be turned on, we will give approval to disable the STAR HSSD systems.
Our other HSSD systems are not credited controls. sPHENIX has requested disabling their HSSD system – we approve this request. Building 913 has given a supervisory alarm – and we approve the request to disable as well. We approve all requests to disable the HSSD systems, EXCEPT 1006 and STAR at this time.
I will send the approval to disable the HSSD system for the STAR detector once we ensure the detector electronics are disabled.
We do plan to run RHIC except for the STAR detector. sPHENIX will be running.
Should conditions deteriorate to the point that regular smoke detectors start alarms we will be turning off.
Ray
Raymond Fliller Associate Chair for ESSHQ Collider-Accelerator Department Brookhaven National Laboratory Building 911 P.O. Box 5000 Upton, NY 11973-5000 Phone: 631-344-2356 Cell: 631-960-2099
From: Kretschmann, Michael
I called back CAD and told them B913 HSSD system in supervisory alarm. They are still discussing what to do, I have also talked to BHSO (Seniuk) to keep him informed.
Michael
Michael Kretschmann PE MBA NYSCEO Brookhaven National Laboratory Fire Protection Engineering Manager Building 902, Rm U29 P.O. Box 5000, Upton, NY 11973 (631) 344-5274 P (631) 344-8769 F (631) 872-9146 C
From:
Kretschmann, Michael <kretschmann AT bnl.gov> I have spoken to CAD that I would approve the detection to be impaired in STAR CAD will make the determination if they will want them shut down after conferring if it is written in the ACE. They will call me on their decision.
From: Daniels, Thomas A <tdaniels AT bnl.gov>
I reiterate, do not impair STAR until this question is resolved.
Thomas Daniels Interim Deputy Director for Operations Brookhaven National Laboratory Upton NY, 11973 Office: 631-344-4752 Cell: 631-831-7662
From: Clancy, Michael F <clancy AT bnl.gov>
I think C-AD would have to do a USI.
Mike
From: Daniels, Thomas A <tdaniels AT bnl.gov>
How can the STAR be impaired if its part of the credited control?
Thomas Daniels Interim Deputy Director for Operations Brookhaven National Laboratory Upton NY, 11973 Office: 631-344-4752 Cell: 631-831-7662
From: Kretschmann, Michael <kretschmann AT bnl.gov>
The HSSD smoker detection systems in NSLS-II can be impaired since Bob Lee verified that The defection is not a accredited control. No fire watch is required.
The HSSD smoke detection at STAR can be impaired with my approval. No fire watch is required.
Michael
Michael Kretschmann PE MBA NYSCEO Brookhaven National Laboratory Fire Protection Engineering Manager Contractor Authority Having Jurisdiction for Fire Safety Building 902, Rm U29 P.O. Box 5000, Upton, NY 11973 (631) 344-5274 P (631) 344-8769 F (631) 872-9146 C
From:
Venegoni, Michael <mvenegoni AT bnl.gov> Mike K can you respond please.
From: Clancy, Michael F <clancy AT bnl.gov>
Ray Fliller said that the STAR detector smoke detectors are credited controls. Also, if the soke detectors are life safety equipment especially in areas that are remote in building do we then need a fire watch if we turn them off?
Mike
From: Daniels, Thomas A <tdaniels AT bnl.gov>
Do not bypass any until we have verified they are not part of the accredited controls for that facility.
Thomas Daniels Interim Deputy Director for Operations Brookhaven National Laboratory Upton NY, 11973 Office: 631-344-4752 Cell: 631-831-7662
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- [Sphenix-l] HSSD detector disabled in sPHENIX, Yip, Kin, 06/07/2023
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