Difference between revisions of "UCSD-2019: Technical Working Group: SATs"
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Attempt at S4 SAT-specific “Goal” statement: | Attempt at S4 SAT-specific “Goal” statement: | ||
| − | “In order to meet CD-1 and 3a goals by Spring 2021, the SAT group is organizing inputs for a key decision followed by review in early 2020. We anticipate this will entail a downselect between single-tube and three tube SAT cryostat options, including a definition of the interface between cryocoolers and telescope mounts, mount geometry, and configuration. Our goal for this October session is to identify the inputs we need to make a good decision in early 2020, confirm the path to getting those and the earliest possible timeline.” | + | '''“In order to meet CD-1 and 3a goals by Spring 2021, the SAT group is organizing inputs for a key decision followed by review in early 2020. We anticipate this will entail a downselect between single-tube and three tube SAT cryostat options, including a definition of the interface between cryocoolers and telescope mounts, mount geometry, and configuration. Our goal for this October session is to identify the inputs we need to make a good decision in early 2020, confirm the path to getting those and the earliest possible timeline.”''' |
== Agenda == | == Agenda == | ||
| − | 15:45 (10m) - SAT Intro, design drivers and approach (John) | + | 15:45 (10m) - [https://docs.google.com/presentation/d/1q_fZuXpkJR0C5gv4TaqvBxs_-A0iVy4Jw4NWNCLiBu0/edit#slide=id.g634540291c_0_49 SAT Intro, design drivers and approach] (John) |
| − | 15:55 (10m) - Roadmap to CD-1/3a (Besuner/Norton, already drafted by Gil) | + | 15:55 (10m) - [https://docs.google.com/presentation/d/1RNrvvaZikO1yeXDH9ez6VbjQd8WDchry/edit#slide=id.p1 Roadmap to CD-1/3a] (Besuner/Norton, already drafted by Gil) |
| − | 16:05 (10m) - 3-tube vs 1-tube Matrix (Akito) | + | 16:05 (10m) - [https://docs.google.com/presentation/d/1yatZYk0wdt-3eKvjPzHK3zg2x5jbwOwduCtQCm-7cio/edit#slide=id.g61ab0e6bcc_0_5 3-tube vs 1-tube Matrix] (Akito) |
'''“Q: Specific budget for < 4K cryo loading, including optical loading on each < 4K stage, may be a key factor for PT/subK cooler configuration and consequently the 1-tube vs 3 tube downselect. Can we get reports of heritage S2/S3 designs, w/ loading numbers, from BK and SO, and evaluate how various choices map into cooling requirements? Nick(SO) + Jamie(BK)”''' | '''“Q: Specific budget for < 4K cryo loading, including optical loading on each < 4K stage, may be a key factor for PT/subK cooler configuration and consequently the 1-tube vs 3 tube downselect. Can we get reports of heritage S2/S3 designs, w/ loading numbers, from BK and SO, and evaluate how various choices map into cooling requirements? Nick(SO) + Jamie(BK)”''' | ||
| − | 16:15 (15m) SO SAT review (N. Galitzki) | + | 16:15 (15m) [https://docs.google.com/presentation/d/1Uq5yQDOOKO68AQeb0NtTHRWH4-cshntx0M_6Pl1P3nw/edit?usp=sharing SO SAT review] (N. Galitzki) |
| − | 16:30 (15m) BICEP/Keck cryogenic loading and IR filter experience (Jamie B) | + | 16:30 (15m) [https://docs.google.com/presentation/d/1kXFW30QA4NIOiB9h9Gkf9Gvu-QYgFzkOxP4cCve-VI4/edit#slide=id.p BICEP/Keck cryogenic loading and IR filter experience] (Jamie B) |
'''“Q: External Shielding may be a key factor for 1-tube vs 3-tube downselect. Do we have common agreement on design criteria for geometry trade study? Kirit K., Fred Matsuda”''' | '''“Q: External Shielding may be a key factor for 1-tube vs 3-tube downselect. Do we have common agreement on design criteria for geometry trade study? Kirit K., Fred Matsuda”''' | ||
| − | 16:45 (10m) SO SAT warm baffling and shielding design (Fred Matsuda) | + | 16:45 (10m) [https://docs.google.com/presentation/d/1eDKdVOGxKbxLeDFiJ9Kpc9mzu4vdR-ciP_h3IKw9ml8/edit#slide=id.p SO SAT warm baffling and shielding design] (Fred Matsuda) |
| − | 16:55 (10m) BICEP warm baffling/shielding (Karkare) | + | 16:55 (10m) [https://docs.google.com/presentation/d/15jZRHyMVZmBn682Ra-X8clvnB7X4xJnJTn8-TmIa_SM/edit#slide=id.p BICEP warm baffling/shielding] (Karkare) |
'''“Q: subK cooler compatibility with mount, site, and other constraints may be a key factor in cryostat configuration decision. Do we have a clear enough idea of compatibilities and risks?: Ben S. (+ Nick)”''' | '''“Q: subK cooler compatibility with mount, site, and other constraints may be a key factor in cryostat configuration decision. Do we have a clear enough idea of compatibilities and risks?: Ben S. (+ Nick)”''' | ||
| − | 17:05 (10m) S4 SAT Sub-4K Coolers and Mount Interface Implications (B. L. Schmitt) | + | 17:05 (10m) [https://docs.google.com/presentation/d/1X8XBsjo78OL37LRhiDQ15Is4ChUGrXkS/edit#slide=id.p1 S4 SAT Sub-4K Coolers and Mount Interface Implications] (B. L. Schmitt) |
'''“Q: Can we be confident that magnetic/RFI shielding will be equally possible for the 3-shooter and 1-shooter designs?”''' | '''“Q: Can we be confident that magnetic/RFI shielding will be equally possible for the 3-shooter and 1-shooter designs?”''' | ||
17:15 (10m total) | 17:15 (10m total) | ||
| − | * BICEP magnetic/RFI shielding experience (Moncelsi, help: Schillaci, Basu Thakur, Nguyen) | + | * [https://docs.google.com/presentation/d/1TOKQpaRDVkyYppbupZ4eHrP606cApz21/edit#slide=id.p1 BICEP magnetic/RFI shielding experience] (Moncelsi, help: Schillaci, Basu Thakur, Nguyen) |
| − | * SO SAT magnetic shielding design (Amir Ali) | + | * [https://docs.google.com/presentation/d/1_CmRtjB3fbgfx_x_9ecGMLF9X-wvbrD1supYbKaXJhc/edit#slide=id.p SO SAT magnetic shielding design] (Amir Ali) |
| − | 17:25-17:45 (20m) discussion | + | 17:25-17:45 (20m) [https://docs.google.com/document/d/1bzQzv20Ci_ftinW_9UppIrLJcNSqvGX0xLFNPYKEQcg/edit discussion] |
== Remote attendance == | == Remote attendance == | ||
| + | https://lbnl.zoom.us/j/532894630 | ||
| + | +1 669 900 6833 | ||
| + | or | ||
| + | +1 646 558 8656 | ||
| + | |||
| + | Meeting ID: 532 894 630 | ||
| + | |||
| + | |||
| + | The following nomianl one not working. Use the above alternative. | ||
[https://ucsd.zoom.us/j/739724358 Zoom link] | [https://ucsd.zoom.us/j/739724358 Zoom link] | ||
| − | |||
== Notes == | == Notes == | ||
Please take notes on this live [https://docs.google.com/document/d/1bzQzv20Ci_ftinW_9UppIrLJcNSqvGX0xLFNPYKEQcg/edit Google Doc] | Please take notes on this live [https://docs.google.com/document/d/1bzQzv20Ci_ftinW_9UppIrLJcNSqvGX0xLFNPYKEQcg/edit Google Doc] | ||
Latest revision as of 18:01, 17 October 2019
Contents
Charge
Generic L2 Parallel charge:
- Identify key decisions that must be made (and justified) prior to CD-1
- Make progress on (or actually make) those decisions,
- Lay out a timeline and process for making each decision, consistent with the post-decision work and internal reviews that will be needed to complete preparations for CD-1,
- Ensure that those timelines and processes are understood and supported by the collaboration, and that we (together) believe we can follow them.
Attempt at S4 SAT-specific “Goal” statement:
“In order to meet CD-1 and 3a goals by Spring 2021, the SAT group is organizing inputs for a key decision followed by review in early 2020. We anticipate this will entail a downselect between single-tube and three tube SAT cryostat options, including a definition of the interface between cryocoolers and telescope mounts, mount geometry, and configuration. Our goal for this October session is to identify the inputs we need to make a good decision in early 2020, confirm the path to getting those and the earliest possible timeline.”
Agenda
15:45 (10m) - SAT Intro, design drivers and approach (John)
15:55 (10m) - Roadmap to CD-1/3a (Besuner/Norton, already drafted by Gil)
16:05 (10m) - 3-tube vs 1-tube Matrix (Akito)
“Q: Specific budget for < 4K cryo loading, including optical loading on each < 4K stage, may be a key factor for PT/subK cooler configuration and consequently the 1-tube vs 3 tube downselect. Can we get reports of heritage S2/S3 designs, w/ loading numbers, from BK and SO, and evaluate how various choices map into cooling requirements? Nick(SO) + Jamie(BK)”
16:15 (15m) SO SAT review (N. Galitzki)
16:30 (15m) BICEP/Keck cryogenic loading and IR filter experience (Jamie B)
“Q: External Shielding may be a key factor for 1-tube vs 3-tube downselect. Do we have common agreement on design criteria for geometry trade study? Kirit K., Fred Matsuda”
16:45 (10m) SO SAT warm baffling and shielding design (Fred Matsuda)
16:55 (10m) BICEP warm baffling/shielding (Karkare)
“Q: subK cooler compatibility with mount, site, and other constraints may be a key factor in cryostat configuration decision. Do we have a clear enough idea of compatibilities and risks?: Ben S. (+ Nick)”
17:05 (10m) S4 SAT Sub-4K Coolers and Mount Interface Implications (B. L. Schmitt)
“Q: Can we be confident that magnetic/RFI shielding will be equally possible for the 3-shooter and 1-shooter designs?”
17:15 (10m total)
- BICEP magnetic/RFI shielding experience (Moncelsi, help: Schillaci, Basu Thakur, Nguyen)
- SO SAT magnetic shielding design (Amir Ali)
17:25-17:45 (20m) discussion
Remote attendance
https://lbnl.zoom.us/j/532894630
+1 669 900 6833 or +1 646 558 8656
Meeting ID: 532 894 630
The following nomianl one not working. Use the above alternative.
Zoom link
Notes
Please take notes on this live Google Doc
