View source for Friday, August 24, 2018 10:00am ET

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== Agenda ==
# Overview of Spectrometer System Status [https://moller.jlab.org/wiki/images/Spectrometer_Status_Overview.pdf pdf]
## What has had considerable work
### Hybrid torus
### Vacuum can
### upstream water-cooled collimator
## Needs work
### other collimators (supports, fine adjustments)
### septant blockers (motion controls)
### upstream torus (supports, vacuum can)
## Simulations 
### sensitivity study for upstream
### beam steering study
### drift region medium (vacuum+air vs. He)
### radiation doses/backgrounds
# Prioritization for engineering work
## Prototype testing
## Hall C – shortening the coil
## Helium port concept
# Next two meetings times/proposed agendas
## meeting time change to Thursday 11am ET?
## status of simulations
## prototype testing report


== Minutes ==
Attendance:  Ruben, Probir, Sandesh, David, Juliette, Jason, Sakib, KK, Kent, Ernie <br>

# Overview of Spectrometer System Status [https://moller.jlab.org/wiki/images/Spectrometer_Status_Overview.pdf pdf]
## Needs work (see pdf)
### JLAB - saftey interlocks, EPICs integration (MIT familiar with what's needed)
### prioritization has been on generic high flux R&D activities
## What has had considerable work (see pdf)
### primary acceptance defining collimator 
#### collimator #2 - W with Cu backing
### "cigar" collimator
#### Cu cooling jacket, W inner layer
#### high water velocities
#### lots of connections
#### detailed summary at future meeting
#### Note: He would necessitate a smaller beampipe through hybrid
#### this would mean necking down this collimator and increasing heat load
#### may not be feasible
#### motion controls for fine adjustment of beam "cigar" collimator
#### fins see the target - needs 1-bounce photon studies
### vacuum can
#### this presentation is summarizing the type of work that needs to be done
### hybrid torus
#### keep-out zones defined by particle envelopes
#### moller envelopes are "absolute"
#### others could be trimmed by adding/modifying collimators if needed (not trivial)
#### we should try to standardize the software used (ANSYS?)
#### cooling system sketch took into account the Hall A infrastructure
#### this might be a good thing for MIT to design 
## <span style="color:red">Simulations - not discussed</span>
# <span style="color:red">Prioritization for engineering work - not discussed</span>
# Next two meetings times/proposed agendas
## regular meeting time change to '''bi-weekly on Thursday at 11am ET'''
## next meeting on '''Tuesday, September 4th at 2:30pm ET'''
## Proposed agendas
### Tuesday, September 4 - prototype testing report (Ernie, Sandesh)
#### MIT testing results
#### Everson Tesla testing results
#### test plan
### Thursday, September 20 - collimator 1 preliminary design summary (Jason)
### Thursday, October 4 - status of simulations (Juliette, KK)


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