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[Xu Sun <sunxuhit AT gmail.com>]

Hi Yi,

The hard one is Tygon C-544-A I.B.. It seems a better one from your previous presentation, which mentioned C-544 is stable after 24 hours test while 3370 is stable after 8 hours test.

We did not try to use any tape in the past tests. Do you have a suggested tape we could try? A part number would be appreciated.

Best,

Xu

On Tue, May 25, 2021 at 11:19 PM Yi Yang <yiyang AT ncku.edu.tw> wrote:

Dear Xu,

Yes, it is indeed good news. Thank you very much. 

I remember that the "harder" soft tube is also a better one for the radiation test, right? 

I am wondering if you guys tried to use thread seal tape on the previous test (softer tube)? 

Anyway, thanks a lot to you, Rahul, and Bob for the hard work. 

Cheers,

Yi

+++++++++++++++++++++++++++++++++++++++++++++++++++
Yi Yang, Associate Professor
Department of Physics
National Cheng Kung University
Tainan, 701 Taiwan
E-Mail: yiyang AT ncku.edu.tw
Tel: +886-6-2757575 ext.65237
Fax: +886-6-2747995
Group Web: http://phys.ncku.edu.tw/~yiyang
+++++++++++++++++++++++++++++++++++++++++++++++++++

On Wed, May 26, 2021 at 6:35 AM videbaek <videbaek AT bnl.gov> wrote:

Hi Xu,

something is amiss with the list. I have only gotten Elks'd response.
Anyway its good news, even if we have to use the hardertube.

best Flemming


On 2021-05-25 18:29, Aschenauer Elke-Caroline wrote:
> Dear Xu,
>
> this is great news, I’m very very much looking forward to the result
> tomorrow morning.
>
> Thanks sharing
> elke
>
>> On May 25, 2021, at 18:24, Xu Sun <sunxuhit AT gmail.com> wrote:
>>
>> Hi All,
>>
>> Sorry if you get this email twice. I didn't see my previous email
>> from the list, so I send it again.
>>
>> An update from the cooling test.
>>
>> Rahul and Bob just found the leak point this afternoon.
>> Please check the video from the following link:
>>
> https://drive.google.com/drive/folders/1C6eSbNqVj1qaO5SXHc-sCi1dlO3qNIU1?usp=sharing
>> [1]
>> The return line shows more leakage than the supply line, and the
>> leakage is pretty serious.
>>
>> The good news is, after switching to the hard tube (which was
>> rejected originally since it is too hard to install), the leakage
>> seems to have stopped (the photo in the previous link).
>> Rahul and Bob are running the pressured air with the hard tube now,
>> and will let it run through the night to check if there is any
>> leakage.
>>
>> We will keep you posted.
>>
>> Best,
>>
>> Xu
>
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videbaek @ bnl.gov
Brookhaven National Lab
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