SEM: Difference between revisions
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(Marked bellows complete) |
(Added Repair Notes section - Chris Murphy) |
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* lives in the "science ghetto" on the west end of the south wall at 2169. | * lives in the "science ghetto" on the west end of the south wall at 2169. | ||
* is tended by Mike Kan and the rest of the [https://www.noisebridge.net/mailman/listinfo/sem SEM mailing list] | * is tended by Mike Kan and the rest of the [https://www.noisebridge.net/mailman/listinfo/sem SEM mailing list] | ||
=== Warnings === | === Warnings === | ||
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# (long term) build digital capture stage to replace CRT mechanism (2010-06-15) | # (long term) build digital capture stage to replace CRT mechanism (2010-06-15) | ||
# build sputter coater for specimen preparation (2010-06-15) | # build sputter coater for specimen preparation (2010-06-15) | ||
=== Repair and Enhancement === | |||
* schematics framed behind SEM are to a similar, potentially slightly more modern model | |||
* poorly designed wire harness may cause linear op amp and transistor on the J1 board of the CRT module to fail | |||
* camera mounting stage and bellows hood for slow-scan exposure. Proposed (2010-06-15), Completed by Mike, Miloh, and Chris (2010-11-06) |
Revision as of 18:08, 9 November 2010
The Scanning Electron Microscope at Noisebridge.
- "TV Mini-SEM (R)" by ISI (International Scientific Instruments)
- lives in the "science ghetto" on the west end of the south wall at 2169.
- is tended by Mike Kan and the rest of the SEM mailing list
Warnings
- If you release the vacuum without venting the pump hose, pump oil will flood the chamber and contaminate the entire mechanism, requiring 10 hours of cleanup.
- If you vent air into the column without powering down the filament, you'll probably destroy the filament ($100).
- If you
Startup procedures
- get the power cord from Mike.
- (to be continued)
Todo list
- column liner needs to be replaced. Larry may be able to provide a clean liner. (2010-06-15)
- (long term) build digital capture stage to replace CRT mechanism (2010-06-15)
- build sputter coater for specimen preparation (2010-06-15)
Repair and Enhancement
- schematics framed behind SEM are to a similar, potentially slightly more modern model
- poorly designed wire harness may cause linear op amp and transistor on the J1 board of the CRT module to fail
- camera mounting stage and bellows hood for slow-scan exposure. Proposed (2010-06-15), Completed by Mike, Miloh, and Chris (2010-11-06)