Attendees:
Cavern Evaluation
| Topics | Notes |
|---|---|
| ConOps | ConOps Outstanding Questions Spreadsheet. OAP exchange frequency (and venting/alignment CONOPS) was identified as high priority at the last meeting. |
| OAP Inserter | Steven prepared an initial slide for discussion, documenting need for a motorized dedicated OAP inserter. Frequency of experiments using HE-LP only: Gilliss - back-to-back long pulse experiments. Long pulse experiments after short pulse would require retraction. To remove, TFM can be retracted into a chamber. OAP needs to be rotated and removed horizontally. Need some sort of rail. Can be removed without breaking vacuum.
|
| Chamber Venting | Corey: Will impact the equipment space needed. Current time is 8h roughing plus 1h high vacuum pumping based on Reynolds number of 1000. Eric would prefer something closer to ELI - 40 minutes. Need significant amount of roughing infrastructure if faster pumping is required. Do we invest in designing a fast pumping system? How to protect OAP? Pumping and venting system is far from optics. Early days of NIF, cleanliness was an issue. And NIF beam transport is not under vacuum. Cryo vacuums disrupt stability, but they will allow us to pump within 45 minutes (8 turbos and 2 cryos). Corey will assume Reynolds requirements will be ignored for fast pumping. Action Item: Corey will work with Kai and Kate to revise requirement. |
