[Halld] PSS testing

[Timothy Whitlatch]

Hi Sasha,

The hall is still in power permit. I have no definite time when PSS will be done.
As far as I know, no one has calibrated the light sensors. We will investigate tomorrow.

Cheers,

Tim

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________________________________
From: Alexander Somov <somov at jlab.org>
Sent: Tuesday, February 25, 2025 4:07:41 PM
To: halld at jlab.org <halld at jlab.org>; Timothy Whitlatch <whitey at jlab.org>
Subject: Re: PSS testing

Hi Tim,

Will the Hall will be reopening today ?
Also, could you confirm if the light sensors inside the dark room were recalibrated? The readings are currently between 0.45 and 0.49, whereas they were around 0.25 yesterday. I’m hoping there isn’t any light in the dark room.

Thanks,
                Sasha

________________________________
From: Halld <halld-bounces at jlab.org> on behalf of Timothy Whitlatch via Halld <halld at jlab.org>
Sent: Tuesday, February 25, 2025 3:12 PM
To: halld at jlab.org <halld at jlab.org>
Subject: [Halld] PSS testing

We just found out that the hall is closing now for PSS testing for a few hours.

Sorry for the late notice


Timothy Whitlatch, PE State of Virginia
Hall D Chief Engineer
Jefferson Lab
757-876-1766
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