Choose timezone
Your profile timezone:
Far-Forward Engineering Meeting
→
US/Eastern
Description
https://bnl.zoomgov.com/j/1658386942?pwd=jfdBW1OFxwIy2RZtW5c7jcQLg87afY.1
----------
Meeting topics:
*Roman pots design discussion
--Impedance calculations (updates, if any)
--Cooling in vacuum
*AOB
Cooling Discussion
- Originally we were operating with the constraint of only "passive cooling" which drove the Peltier based cooling concept.
- We now know we can look at fluid-based (likely gas) options, and are investigating potential pros/cons in terms of cooling capacity, failure modes, and different risks.
- Karim showed a potential layout of such an option so we can assess spatial constraints, placement of readout boards, etc.
- Karim also showed a heat sink option which does not require plates on the front and rear side of the detector, which could provide better control over the RF shielding for both detector protection and impedance reduction, decoupled from the cooling itself.
- We do not need a final design by the December PDR, but we need to show the two concepts, a comparison of the various integration issues and risks, and a path to converge on the best option by the time of the FDR and have a design for it.
Detector access and maintenance
- Generally we assume access to the detector components in-vacuum is impossible during a run, but this creates an issue for a core EIC detector if a quadrant of the Roman pots fails (for example) during a run.
- How can we potentially deal with a saw quadrant-swap during a run - what would the consequences be to the machine? The detector? We are at the point now where we can ask questions and perform simulations to assess.
- We should pursue this course of action --> we need to understand how this can be done because we cannot operate without these detectors for a long period.
- How can we potentially deal with a saw quadrant-swap during a run - what would the consequences be to the machine? The detector? We are at the point now where we can ask questions and perform simulations to assess.
Preliminary design review is aimed at either Dec. 10th or Dec. 14th (pending reviewer availability). Will only be ONE day to better accommodate schedules.
There are minutes attached to this event.
Show them.