Difference between revisions of "General Meeting Summary 1/4/18"
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(Created page with "SUBSYSTEM UPDATES MAGNET (Bogdan) * Magnet main coil on the way from New Zealand - anticipated arrival at end of January * Magnet yoke on schedule for delivery end of Janua...") |
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* [https://wiki.jlab.org/cuawiki/images/9/93/TestLabScetch142018.png A sketch of the new test lab space for NPS] | * [https://wiki.jlab.org/cuawiki/images/9/93/TestLabScetch142018.png A sketch of the new test lab space for NPS] | ||
| − | ::* same dimensions, just in a different location | + | ::* same dimensions, just in a different location |
| + | |||
| + | |||
| + | HV DIVIDERS (Julie) | ||
| + | |||
| + | * Order was placed for 1200 dividers, anticipate 30 day delivery, assembly of a few hundred could be done by summer | ||
| + | * Need sockets for full assembly | ||
| + | ::* currently have ~200 PMTs and sockets at JLab (some have been machined from larger size, but all should be ok) | ||
| + | ::* option to procure all sockets this year to finalize full assemblies by next year fall | ||
| + | |||
| + | |||
| + | FRAME (Carlos) | ||
| + | |||
| + | * Planning to present design options at the collaboration meeting and to discuss possible optimizations. IPNO engineer/designer will also meet with Mike Fowler. | ||
| + | |||
| + | |||
| + | CRYSTALS (Carlos, Rong, Vladimir, TH) | ||
| + | |||
| + | * Granite table ready for dimension measurements at JLab | ||
| + | |||
| + | * IPNO setting up for crystal characterization measurements, carried out tests at Giessen U. for inter-laboratory comparison - data analysis ongoing | ||
| + | |||
| + | * Microscopy and chemical composition analysis were carried out for 12 crystals at CUA. | ||
| + | ::* chemical composition determined with XRF, statistical analysis suggests that both, stoichiometry and addition of other elements have an impact on optical properties, more detailed analysis ongoing | ||
| + | |||
| + | * Optical measurements continuing at CUA | ||
| + | |||
| + | |||
| + | PMTs (Vladimir, A. Somov) | ||
| + | |||
| + | * PMT characterization setup at JLab - fixed light leaks of dark box in the process | ||
| + | |||
| + | * 65 PMTs were tested, all with the same divider | ||
| + | ::* HV scan, measured amplitudes - looks good at first glance | ||
| + | ::* HV scan at fixed amplitude | ||
| + | |||
| + | * Planning to write report on all measurements and post in Wiki | ||
Revision as of 13:04, 5 January 2018
SUBSYSTEM UPDATES
MAGNET (Bogdan)
- Magnet main coil on the way from New Zealand - anticipated arrival at end of January
- Magnet yoke on schedule for delivery end of January or beginning of February
- Many parts are finished and will be going for painting. Still have to finish machine a few items, mostly the parts from the sawed plates. They are all ground and are not expected to take long to machine. A few of the rough machined items are out for heat treat. The painting is delayed because of the extreme cold right now.
- Pictures of the yoke parts: Pic1, Pic2, Pic3
- same dimensions, just in a different location
HV DIVIDERS (Julie)
- Order was placed for 1200 dividers, anticipate 30 day delivery, assembly of a few hundred could be done by summer
- Need sockets for full assembly
- currently have ~200 PMTs and sockets at JLab (some have been machined from larger size, but all should be ok)
- option to procure all sockets this year to finalize full assemblies by next year fall
FRAME (Carlos)
- Planning to present design options at the collaboration meeting and to discuss possible optimizations. IPNO engineer/designer will also meet with Mike Fowler.
CRYSTALS (Carlos, Rong, Vladimir, TH)
- Granite table ready for dimension measurements at JLab
- IPNO setting up for crystal characterization measurements, carried out tests at Giessen U. for inter-laboratory comparison - data analysis ongoing
- Microscopy and chemical composition analysis were carried out for 12 crystals at CUA.
- chemical composition determined with XRF, statistical analysis suggests that both, stoichiometry and addition of other elements have an impact on optical properties, more detailed analysis ongoing
- Optical measurements continuing at CUA
PMTs (Vladimir, A. Somov)
- PMT characterization setup at JLab - fixed light leaks of dark box in the process
- 65 PMTs were tested, all with the same divider
- HV scan, measured amplitudes - looks good at first glance
- HV scan at fixed amplitude
- Planning to write report on all measurements and post in Wiki