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["Visser, Gerard" <gvisser AT indiana.edu>]

Thank you for putting it into context and it certainly sounds reasonable.  Anyway clearly a big step forward here... Sincerely,

     Gerard

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From: Zhenyu Ye <yezhenyu2003 AT gmail.com>
Sent: Tuesday, June 1, 2021 1:16 PM
To: Visser, Gerard <gvisser AT indiana.edu>
Cc: Hu, Yu <yuhu AT bnl.gov>; Xu Sun <sunxuhit AT gmail.com>; L Star-fst <star-fst-l AT lists.bnl.gov>
Subject: Re: [Star-fst-l] FST cooling tube leak : We might have a solution

 

In 2015, 0.7% per day

> On Jun 1, 2021, at 12:06 PM, Visser, Gerard <gvisser AT indiana.edu> wrote:
>
> hi Xu, Zhenyu,
>    So, the natural question is what was the historical leak rate per day for the installed IST during the runs?
>    Thanks, sincerely,
>
>      Gerard
>
>
> From: Star-fst-l <star-fst-l-bounces AT lists.bnl.gov> on behalf of Hu, Yu <yuhu AT bnl.gov>
> Sent: Tuesday, June 1, 2021 12:50 PM
> To: Xu Sun <sunxuhit AT gmail.com>
> Cc: L Star-fst <star-fst-l AT lists.bnl.gov>
> Subject: Re: [Star-fst-l] FST cooling tube leak : We might have a solution
> 
> Dear All,
>
> Please find our latest plot for the cooling system leaking test.
> We see a 2% drop yesterday. From the previous study, we know the readout level is always dropping with 2% steps.
> So now we know the leaking rate is <1% per day with the current setup, which is pretty good.
>
> We disassembled the current connection this morning and will move on to the next test today. The details we will update later.
>
> Thank you.
> Best,
> Yu
>