[Dsg-rich] RICH survey data

Marco Mirazita Marco.Mirazita at lnf.infn.it
Tue May 22 11:07:14 EDT 2018


That's perfect.
Where is the conference room?
Marco


Il 2018-05-22 16:21 Kelly Tremblay ha scritto:
> Hi Marco,
> Sure - I have booked a confrence room near my office for 2:30 pm
> today. Does that time work?
> Kelly
> 
> ----- On May 22, 2018, at 8:48 AM, Marco Mirazita
> Marco.Mirazita at lnf.infn.it wrote:
> 
> Hell Kelly,
> would be ok for you to meet this afternoon?
> Thanks,
> Marco
> 
> 
> 
> Il 2018-05-16 16:43 Kelly Tremblay ha scritto:
>> Hello Marco,
>> Thanks for clearing this up. I'm back on accelerator business this
>> morning but may have time this afternoon to get something out to you.
>> The picture helps. Did the crew actually have the coordinates for the
>> pointing device to the mirrors given to them. There is a coordinate
>> frame listed in the file as being the rich detector. It is 10
>> millimeters from the 'Bottom' fiducial point. Is this the reference
>> you wish everything to be made to. I've got the 3 fiducial coordinates
>> in an 'as-found' operating coordinate system, relative to the 12GeV
>> target. That is how I was going to report the points and also the
>> mirror points. I can also transform the mirror geometry to the
>> 'as-found' angles.
>> I also have all the graphic / cad data from our surveys.
>> It would be good to meet up next week if you have the time. I've got
>> interviews next week but should be able to make time. Let me know.
>> All the best,
>> Kelly
>> 
>> ----- On May 16, 2018, at 10:08 AM, Marco Mirazita
>> Marco.Mirazita at lnf.infn.it wrote:
>> 
>> Dear Kelly,
>> for the survey made in the Hall B after the installation, we need the
>> coordinates of the surveyed points on the RICH in the CLAS12 reference
>> frame.
>> 
>> Then there is the survey made in the clean room. From this, we need
>> again the coordinates of the points on the RICH and of the points
>> measured on the mirrors. The reference frame of these measurements was
>> located on a point in front of the RICH as shown in the attached
>> figure,
>> but it would be very helpful if you could translate these coordinates
>> in
>> the CLAS12 reference frame.
>> I remember that your software extracted also the tilt angles of the
>> mirrors, this would be another useful information to have.
>> 
>> Any data format would be fine for us, text, excel, or similar, but if
>> possible we would like to have also the CAD files of the measurements.
>> 
>> Please let me know if you need any other information. I would be at
>> JLab
>> next week, so if necessary we could meet shortly.
>> 
>> Best regards,
>> Marco
>> 
>> 
>> 
>> Il 2018-05-15 22:00 Tyler Lemon ha scritto:
>>> Hello Marco Mirazita,
>>> 
>>> Kelly Tremblay of Survey Group (he is cc'd) has been working on the
>>> RICH survey data and has questions on what is needed in the survey
>>> report. His email is below in blue.
>>> 
>>> He needs to know whether you all require the points or the plane
>>> rotational data from the survey in the hall relative to the 12GeV
>>> target center.
>>> 
>>> Best regards,
>>> 
>>> Tyler
>>> 
>>> FROM: "Kelly Tremblay" <tremblay at jlab.org>
>>> TO: "Tyler Lemon" <tlemon at jlab.org>
>>> SENT: Tuesday, May 15, 2018 3:40:46 PM
>>> SUBJECT: Re: RICH survey data
>>> 
>>> Hi Tyler,
>>> I need some clarification about what you are looking for in a report.
>>> The alignment crew located the planes with the detector. I've
>>> translated these mirrors to the as located in the hall, relative to
>>> the 12GeV Hall B target center. I can either give you the points or
>>> the plane rotational data. Not sure what the INFN folks require.
>>> Thanks,
>>> Kelly
>>> 
>>> 
>>> _______________________________________________
>>> Dsg-rich mailing list
>>> Dsg-rich at jlab.org
>>> https://mailman.jlab.org/mailman/listinfo/dsg-rich



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