[PRad] HyCal work

[Steve Christo]

Pulled the beam pipe out and everything seems to be fine. Just try not 
to disturb the RTV too much while curing when you're working around the 
HyCal.
Steve

On 4/29/2016 9:22 AM, Steve Christo wrote:
> Yes, it's pretty tight but slides ok. The only problem is that there 
> is no support for the pipe inside the detector beyond the collimator 
> so it is not possible to direct the beam pipe through without going 
> off axis and possibly damaging the Tedlar joints. I'll look into it 
> when I go to hall in a few minutes.
> Steve
>
> On 4/29/2016 8:39 AM, Eugene Pasyuk wrote:
>> Thank you, Steve!
>> I've been to the hall, it looks good.
>> Since this is tight fit on the pipe we have to be careful when 
>> inserting the pipe into the tube.
>>
>> Guys, before we do anything els on the HyCal we need to check for the 
>> light leaks.
>>
>> -Eugene
>>
>> ------------------------------------------------------------------------
>>
>>     *From: *"Steve Christo" <christo at jlab.org>
>>     *To: *"Chao Peng" <pengc2010 at gmail.com>, "Eugene Pasyuk"
>>     <pasyuk at jlab.org>
>>     *Cc: *"Bob Miller" <rmiller at jlab.org>, "prad" <prad at jlab.org>
>>     *Sent: *Friday, April 29, 2016 6:27:41 AM
>>     *Subject: *Re: [PRad] HyCal work
>>
>>     Thank you. I've installed the Tedlar tube through HyCal but had
>>     to keep the beam pipe inside the tube while the RTV cures. It
>>     shouldn't prevent you from installing the GEM detector frame.
>>     I'll check it and remove the beam pipe later this morning.
>>     Steve
>>
>>     On 4/28/2016 8:12 PM, Chao Peng wrote:
>>
>>         Hi Eugene,
>>
>>         All power supplies are turned off.
>>         It is safe to access HyCal.
>>
>>         Best,
>>         Chao
>>
>>         On Thu, Apr 28, 2016 at 6:03 PM, Eugene Pasyuk
>>         <pasyuk at jlab.org> wrote:
>>
>>             Ok. Send us a note when it is OFF.
>>
>>             -Eugene
>>
>>             ------------------------------------------------------------------------
>>
>>                 *From: *"Chao Peng" <pengc2010 at gmail.com>
>>                 *To: *"Eugene Pasyuk" <pasyuk at jlab.org>
>>                 *Cc: *"prad" <prad at jlab.org>, "Steve Christo"
>>                 <christo at jlab.org>, "Bob Miller" <rmiller at jlab.org
>>                 <mailto:rmiller at jlab.org>>
>>                 *Sent: *Thursday, April 28, 2016 5:55:21 PM
>>                 *Subject: *Re: [PRad] HyCal work
>>
>>                 Hi Eugene,
>>                 I am taking some data right now, and I will turn the
>>                 HV off tonight.
>>
>>                 Best Regards,
>>                 Chao
>>
>>                 On Thu, Apr 28, 2016 at 2:17 PM, Eugene Pasyuk
>>                 <pasyuk at jlab.org> wrote:
>>
>>                     Tomorrow HyCal should be down and we can start
>>                     working on it. The first thing to do would be to
>>                     open beam holes upstream and downstream and
>>                     install Tedlar tube through the HyCal.
>>
>>                     If anyone is taking data with HyCal today make
>>                     sure to finish it and turn all HV off before
>>                     tomorrow morning. The chiller also should be
>>                     turned off.
>>
>>                     -Eugene
>>
>>                     _______________________________________________
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>>
>>
>>
>>
>>                 -- 
>>                 Chao Peng
>>                 Department of Physics
>>                 BOX 90305
>>                 Duke University
>>                 Durham, NC 27708
>>
>>
>>
>>
>>         -- 
>>         Chao Peng
>>         Department of Physics
>>         BOX 90305
>>         Duke University
>>         Durham, NC 27708
>>
>>
>>
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>

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