Difference between revisions of "Heavy Gas Cherenkov"

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=== email list ===
 
=== email list ===
 
HGC emaillist,"solid_hgc at jlab.org", [https://mailman.jlab.org/mailman/listinfo/solid_hgc  registration and archive]
 
HGC emaillist,"solid_hgc at jlab.org", [https://mailman.jlab.org/mailman/listinfo/solid_hgc  registration and archive]
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=== conference system===
 
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Blue Jeans with meeting ID: 591770580
 
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Audio via phone (better than computer): dial +1-888-240-2560 (US or Canada only) or http://bluejeans.com/numbers for other countries,
 
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then enter the meeting ID.
 
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Desktop sharing and video via web: https://bluejeans.com/591770580
 
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Or video via a Video Conferencing System: dial 199.48.152.152, then enter the meeting ID.
 
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=== file sharing ===
 
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We use a dropbox folder. ask Zhiwen Zhao zwzhao@jlab.org with your dropbox account
 
  
 
== Integration into SoLID  ==  
 
== Integration into SoLID  ==  
  
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refer to SoLID_Engineering_Integration_and_CAD page
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refer to SoLID_Engineering_Integration_and_CAD page [[Engineering Integration and CAD]]
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[[Engineering Integration and CAD]]
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== prototyping and R&D ==
 
== prototyping and R&D ==
  
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=== window ===
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=== window and tank ===
  
 
* material
 
* material
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** [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=59 test 3: Small size test of double layer 5 mil Mylar/12 mil Kevlar window with epoxy coating. June 9, 2017.]
 
** [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=59 test 3: Small size test of double layer 5 mil Mylar/12 mil Kevlar window with epoxy coating. June 9, 2017.]
 
** [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=60 test 4: Small size tests of five different configurations of 5 mil Mylar/12 mil Kevlar window with epoxy coating. Aug 16, 2017.]
 
** [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=60 test 4: Small size tests of five different configurations of 5 mil Mylar/12 mil Kevlar window with epoxy coating. Aug 16, 2017.]
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** [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=407] [https://solid.jlab.org/cgi-bin/public/ShowDocument?docid=408] final prototype test in 2021
  
 
=== [https://solid.jlab.org/wiki/index.php/Cherenkov_readout readout] ===
 
=== [https://solid.jlab.org/wiki/index.php/Cherenkov_readout readout] ===
  
 
=== mirror ===
 
=== mirror ===
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==== base ====
 
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==== coating ====
 
  
 
HGC mirror drawing and SBU half mirror Al support structure at p12 of https://solid.jlab.org/DocDB/0002/000254/003/solid_hgc_zwzhao_20200608.pdf
 
HGC mirror drawing and SBU half mirror Al support structure at p12 of https://solid.jlab.org/DocDB/0002/000254/003/solid_hgc_zwzhao_20200608.pdf
  
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==== test ====
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*test stand info
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** SHMS mirror test stand info,  ch5 of https://misportal.jlab.org/ul/publications/downloadFile.cfm?pub_id=12091
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* SHMS mirror test stand info,  ch5 of https://misportal.jlab.org/ul/publications/downloadFile.cfm?pub_id=12091
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** CLAS12 RICH mirror test stand info
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*** https://clasweb.jlab.org/wiki/images/3/35/CMA_report.pdf, That refers to a mirror technology that was rejected (rohacell core, not stable enough) but explain part of the characterization we made.
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* CLAS12 RICH mirror test stand info
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*** additional information from the initial evaluation of the real mirrors: https://clasweb.jlab.org/wiki/images/4/4c/2016-05-20_SphericalMirrors.pdf, https://clasweb.jlab.org/wiki/images/2/2a/2016-07-01_SphericalMirrorsCMM.pdf, https://userweb.jlab.org/~tlemon/RICH/D0_Measurement_Results_2016-10-21.pdf
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** https://clasweb.jlab.org/wiki/images/3/35/CMA_report.pdf, That refers to a mirror technology that was rejected (rohacell core, not stable enough) but explain part of the characterization we made.
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*** This is the new jlab detector support group reflectivity test-station: https://userweb.jlab.org/~tlemon/RICH/New%20Reflectivity%20Test%20Station%202022-04-22.pdf
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** additional information from the initial evaluation of the real mirrors: https://clasweb.jlab.org/wiki/images/4/4c/2016-05-20_SphericalMirrors.pdf, https://clasweb.jlab.org/wiki/images/2/2a/2016-07-01_SphericalMirrorsCMM.pdf, https://userweb.jlab.org/~tlemon/RICH/D0_Measurement_Results_2016-10-21.pdf
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** This is the new jlab detector support group reflectivity test-station: https://userweb.jlab.org/~tlemon/RICH/New%20Reflectivity%20Test%20Station%202022-04-22.pdf
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Revision as of 15:14, 18 April 2023

info

email list

HGC emaillist,"solid_hgc at jlab.org", registration and archive

Integration into SoLID

refer to SoLID_Engineering_Integration_and_CAD page Engineering Integration and CAD

prototyping and R&D

window and tank

  • material
    • tedlar/mylar/tedlar from Madico
    • "We have used this type of material for spectrometer vacuum windows. It is made of high end sail cloth (actual sail material for boats). It is not the easiest material to work with but will most likely work for you. You may have to pretension the cloth depending on the manufacturer." from David Meekins of jlab target group, https://www.sailmakerssupply.com/product/racing-laminate-sailcloth-seconds/sailcloth, It's actually Kevlar/Mylar laminates
    • cheap kevlar, http://www.mcmaster.com/#kevlar/=14kwgqs , Its thickness 0.6mm is a bit bigger than 0.4mm used by BNL vacuum window, Not sure if it's because it's "cut resistant"
    • 2024 Al ~1mm thick

readout

mirror

HGC mirror drawing and SBU half mirror Al support structure at p12 of https://solid.jlab.org/DocDB/0002/000254/003/solid_hgc_zwzhao_20200608.pdf

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