[Dsg-halla_gas] [EXTERNAL] Re: SBS/BB plan view

[Jack Segal]

The two racks are in EEL room 125. See the attached picture.

George, will these work for you?



On 9/3/2020 10:48 AM, Marc Mcmullen wrote:
> Thanks Jack
> ------------------------------------------------------------------------------------------------------------------------------------
> *From:* Jack Segal <segal at jlab.org>
> *Sent:* Thursday, September 3, 2020 10:48 AM
> *To:* Marc Mcmullen <mcmullen at jlab.org>
> *Cc:* Brad Sawatzky <brads at jlab.org>
> *Subject:* Re: [EXTERNAL] Re: SBS/BB plan view
> Yes. Similar in both cases. 40 to 50 feet.
> 
> Sent from my iPhone
> 
>> On Sep 3, 2020, at 10:41 AM, Marc Mcmullen <mcmullen at jlab.org> wrote:
>>
>> 
>> Are the runs rather straight, and how long would you say Jack?
>> ------------------------------------------------------------------------------------------------------------------------------------
>> *From:* Jack Segal <segal at jlab.org>
>> *Sent:* Thursday, September 3, 2020 10:38 AM
>> *To:* Marc Mcmullen <mcmullen at jlab.org>
>> *Cc:* Brad Sawatzky <brads at jlab.org>
>> *Subject:* Re: [EXTERNAL] Re: SBS/BB plan view
>> Yes, two locations.
>>
>> Sent from my iPhone
>>
>>> On Sep 3, 2020, at 10:36 AM, Marc Mcmullen <mcmullen at jlab.org> wrote:
>>>
>>> 
>>> While we're working on this mornings questions. I just went through one of the ERRs and it looks like there may be two huts?
>>>
>>> I didn't get this from the meetings, but are we locating the gas panels in more than one location?
>>> ------------------------------------------------------------------------------------------------------------------------------------
>>> *From:* Marc Mcmullen <mcmullen at jlab.org>
>>> *Sent:* Thursday, September 3, 2020 7:28 AM
>>> *To:* Brad Sawatzky <brads at jlab.org>; Jack Segal <segal at jlab.org>
>>> *Subject:* Re: [EXTERNAL] Re: SBS/BB plan view
>>> Hi Brad and Jack,
>>>
>>> We were having a discussion on the location of the gas panel racks in the hall. The last location we talked about was behind the 
>>> hut. Could you confirm the location of the hut in these screenshots and the approximate lengths of the cable/gas line runs from 
>>> the hut to each of the spectrometers and describe the path of the run.
>>>
>>> Thanks,
>>> Marc
>>>
>>> ------------------------------------------------------------------------------------------------------------------------------------
>>> *From:* Brad Sawatzky <brads at jlab.org>
>>> *Sent:* Thursday, July 23, 2020 12:05 PM
>>> *To:* Marc Mcmullen <mcmullen at jlab.org>
>>> *Subject:* [EXTERNAL] Re: SBS/BB plan view
>>> Hi Marc,
>>>
>>> I'm attaching some figures that might be more useful.  The SBS is on
>>> beam-left (bottom right), and BigBite is on beam-right (bottom left) of
>>> these snapshots.
>>>
>>> The angles should be: SBS is at 24.7deg; BB is at 41.9 deg; but I have
>>> not verified if that is correct in this particular model.  It looks
>>> pretty close though.
>>>
>>> Note that both arms will be moved over a range of angles over the course
>>> of the experiment however.  SBS ranges between 13--30deg.  BB ranges
>>> between 30--60deg.
>>>
>>> BB will always have its full complement of GEMs, but the SBS will only
>>> use its GEMs while it is at the 24.7deg setting.
>>>
>>> The units on the top-down figure with the grid are feet.
>>>
>>> -- Brad
>>>
>>> On Thu, 23 Jul 2020, Marc Mcmullen wrote:
>>>
>>> > Hi Brad,
>>> > I found this diagram while hunting around the Hall A wiki. The BigBite is
>>> > labeled, I am assuming the Super BigBite is the setup at 24.7 degrees. Am I
>>> > right?
>>> > Thanks,
>>> > Marc
>>>
>>>
>>>
>>> -- 
>>> Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
>>> Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
>>> The most exciting phrase to hear in science, the one that heralds new
>>>   discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov

-- 
John(Jack) Segal
Halls A and C Spectrometer Support Manager
Thomas Jefferson National Accelerator Facility
12000 Jefferson Avenue
Suite 12
Newport News, VA 23606-4486
Phone: (757) 269-7242
Cell: (757) 320-9977
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