Caltech Optical Observatories Cahill Reference TWiki
Cahill Center for Astronomy and Astrophysics
- Cahill Building Wiki: with links to general building information, email lists, maps, etc.
- Conference Room Schedule
General Instrumentation Meetings and Workshops
- 100930 Applications of GPU's for Astronomy
- 140914 Ground-layer AO (GLAO) Workshop
- 150728 EMCCD Spectroscopy Workshop
COO Lunch Time talks
- 2017-06-29 ZTF Grounding and Shielding Steve Kaye
- 2017-07-05 Flat Field Forensics Timothee Greffe
N.B: Shifted to 12:30pm Wednesdays
| July 5 | Timothee Greffe | Flat Field Forensics | Bizarre dips observed in variance curves for many e2v CCDs are explained by Tim for the first time. The Downing Dip and the Bilgi Bump each flagged different subtle charge transport problems which could have severely impacted ZTF. |
|---|---|---|---|
| July 12 | Justin Belicki | Using inductance to measure holding force of Electro-Permanent Magnets | Inductors are complicated and permananet magnets doubly so. Justin reports on a clever method to encode a magnetic latch with no additional parts. |
| July 19 | Peter Mao | Optmizing the ZTF pixel timing | Peter will present experimental methods that are allowing us to squeeze every last bit of “overhead” out of the pixel time to maximize noise averaging at 1 MHz pixel rate, or to go even faster. |
| July 26 | Pavan Bilgi | Concurrent Clocking | Pavan shows off a magic trick that makes most of the parallel transfer overhead disappear and reveals his next trick which will be to make charge traps disappear. |
| Aug 2 | Michael Feeney | JT Cooler Survival Guide | Michael tells how we escape from the grips of Polycold, an unreliable and expensive supplier, by developing in-house capability to diagnose and fix Cryotiger problems, find alternate sources, and refurbish used parts. |
| Aug 9 | Roger Smith | Vacuum Advice | What's important? What's not? How much to pump and how seldom. Initial cleaning and baking. Use a leak detector as your pumping station, but don't do stupid stuff. Cold traps. Underlying physics. Vital roles of getters and desiccants. Gauge types and ion pumps. How your cooling system affects all this. |
Universities Space Research Association
- USRA Home Page - R. Dekany, USRA Representative
Topic revision: r40 - 2017-06-30 - RogerSmith
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