Difference between revisions of "Tracking Meeting Mar 2 2023 1:00PM ET"
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| − | # (Rakitha) | + | # (Rakitha) GEANT 4 simulation with 7 parallel WLS fibres, ground (diffuse) scintillator surface, with 99% reflecting Mylar wrap (air gap, doesn't whet scint surface) shows >99.9% efficiency (for > 3 PEs within 10 ns) over entire scintillator. Discovered that original bench studies (rectangular scint, 2 fibres only) used 90% reflectivity mylar; results markedly improved when 99% reflectivity mylar was used instead. Next prototype will try using carbide powder to make surface diffuse. Carl suggest trying a diffuse reflector such as Tyvek (he has a roll in his office) and leaving optically flat scintillator surface. Suggested that Rakitha order two trapeziodal prototypes next. # (Rakitha) Scintillator frame has only been slightly modified from earlier version which used light guide readout; will send latest CAD to Chandika to incorporate in Rotator design. |
| + | # (Rakitha) Probably will use SHV connectors (as opposed to MHV or HV-lemo). | ||
| + | # (Bhasith) Will show updates on GEM design (gas connections) next week, after first talking with Nilanga. | ||
Revision as of 19:49, 2 March 2023
Back to Main Page >> Tracking system
Zoom link: https://cwm.zoom.us/j/9655149233?pwd=b2I1cXZUakN0Q2tFK0w0QVdmajkzZz09
Meeting ID: 965 514 9233
Passcode: 1693
Agenda
- (Rakitha) Trigger Scintillator Status [1]
- (Bhasitha) GEM design tweaks
Attendance
David A, Bhasitha D, Klaus D, Chandika A, Rakitha B, Ryan B, Nilanga L, Vladimir B, Carl Z
Minutes
- (Rakitha) GEANT 4 simulation with 7 parallel WLS fibres, ground (diffuse) scintillator surface, with 99% reflecting Mylar wrap (air gap, doesn't whet scint surface) shows >99.9% efficiency (for > 3 PEs within 10 ns) over entire scintillator. Discovered that original bench studies (rectangular scint, 2 fibres only) used 90% reflectivity mylar; results markedly improved when 99% reflectivity mylar was used instead. Next prototype will try using carbide powder to make surface diffuse. Carl suggest trying a diffuse reflector such as Tyvek (he has a roll in his office) and leaving optically flat scintillator surface. Suggested that Rakitha order two trapeziodal prototypes next. # (Rakitha) Scintillator frame has only been slightly modified from earlier version which used light guide readout; will send latest CAD to Chandika to incorporate in Rotator design.
- (Rakitha) Probably will use SHV connectors (as opposed to MHV or HV-lemo).
- (Bhasith) Will show updates on GEM design (gas connections) next week, after first talking with Nilanga.
