[Dsg-halla_ecal] ECAL heater controls testing

Jack Segal segal at jlab.org
Fri Feb 10 11:09:41 EST 2023


Nice write up! One small detail, the insulation in the Hall A testing and in the final assembly is foamglas:
https://www.owenscorning.com/en-us/insulation/foamglas?adobe_mc=MCMID%3D48067265118284394592079833562541064423%7CMCORGID%3D3AED27E253DB1E4C0A490D4E%2540AdobeOrg%7CTS%3D1676045275

On 2/10/2023 10:12 AM, Marc Mcmullen via Dsg-halla_ecal wrote:
> Hi,
> 
> The ECAL insulated heater test talk link has a new update.
> 
> ECAL Insulated Heater Test <https://www.jlab.org/sites/default/files/dsg/talks/hall-a/ECAL%20Insulated%20Heater%20Test_020823_post_0.pdf>
> 
> 
> Marc
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
> *From:* Dsg-halla_ecal <dsg-halla_ecal-bounces at jlab.org> on behalf of Marc Mcmullen via Dsg-halla_ecal <dsg-halla_ecal at jlab.org>
> *Sent:* Friday, February 10, 2023 9:51 AM
> *To:* dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
> *Subject:* [Dsg-halla_ecal] ECAL heater controls testing
> Hi,
> 
> DSG has completed testing to determine that  92W is more adequate power to achieve 250 degrees Celsius at the_front flange_ of the supermodule. The testing process can be reviewed at the link below.
> 
> ECAL Insulated Heater Test <https://www.jlab.org/sites/default/files/dsg/talks/hall-a/ECAL%20Insulated%20Heater%20Test_020823_post.pdf>
> 
> Next week we will organize a meeting to review the segmentation of a controls system to power 188 supermodules and discuss changes to the prototype heater design to accommodate the segmentation, as well as power supplies.
> 
> We will also discuss controls and monitoring for the front flange heaters of the 6 supermodule test stand being assembled by Hall A. Per Albert, this test stand is scheduled to run in March.
> 
> Regards,
> Marc
> 
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-- 
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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