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Frequency - Scanning Particle size Spectrometer
| Content Provider | Semantic Scholar |
|---|---|
| Author | Makeyeva, V. F. Komolova, G. S. |
| Copyright Year | 2009 |
| Abstract | A commercial electron microsco pe with flat -plate upper pole piece configuration of the eb.)ective lens and tra p entry specimen introduction was modified to obtain 5*10 -`0 mbar pressure at the site of the specimen, while maintaining the convenience of a specimen a irl ock System that allows operation in the WOO mbar range within 15 minutes after specimen chan ge. Th y specimeh chamber contains three wire evaporation sources, b s pecimen heater, and facilities for oxygen or hydrogen Plasma treatment to clean as-introduced specimens, Evacustion is achieved by dual differential pum p ing, with fine entrance and exit aGerture_ for the electron bear, The microsco pe operating At 1?6 mbar,; the first differential pum p ing stage features a hi gh-speed cryopump operating at a stainless steel chamber that can be mildly baked and reaches 1*10 6 mbar, The second stage, containing the evaporation sources and a custom ionization gauge withih 10 cm from the specimen, is a ri gorously uncomp romised all-metal uhv-system that is bakable to above 2,H-'s C throuohout and is pum ped with an 8^-1 i ter ion pump, Design operating pressures and image quality (resolution of metal particles smaller than i hm in size) were achieved, |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820013777.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820012837.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820013581.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19860005853.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820016655.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800025810.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820002828.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19860019534.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800017801.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19810018924.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820011859.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800017263.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800015382.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800024888.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820017719.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19810009696.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19810004353.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19800010094.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820014754.pdf |
| Alternate Webpage(s) | https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19820003884.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Notice |
