| 21. |
Nonproportionality in Bayard‐Alpert Ionization Gauge and the Ultimate Vacuum Determination of Diffusion Pumps |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1037-1041
Y. Mizushima,
Z. Oda,
Preview
|
PDF (361KB)
|
|
摘要:
The nonproportionality between the ion current and the electron current in a Bayard‐Alpert ionization gauge is systematically examined and theoretically treated. The effective pumping speed is so modified as to include the effect of back diffusion of oil vapor from the diffusion pump and the contribution of ionization pumping. The theory is experimentally verified in some respects to deduce a new criterion for the maximum attainable vacuum with the diffusion pump. Oil and mercury diffusion pumps are compared to deduce the superiority of mercury pumps for obtaining ``ultra‐high'' vacuum. The best vacuum (in normal working conditions) is 10−9∼10−8mm Hg with oil and 10−11mm Hg with mercury.
ISSN:0034-6748
DOI:10.1063/1.1716414
出版商:AIP
年代:1959
数据来源: AIP
|
| 22. |
High‐Speed Turbine‐Driven Rotating Mirrors: Notes on Design, Construction, and Performance |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1041-1048
Berlyn Brixner,
Preview
|
PDF (647KB)
|
|
摘要:
Described in detail are the main features of design and fabrication which contribute to the production of the reliable long‐lived drives of several styles of high‐speed turbine‐driven rotating mirrors. The subjects analyzed are steel mirror fabrication, which includes heat treatment; mirror balancing and surface finishing techniques; important bearing design features; construction of the turbine; and performance of selected models.
ISSN:0034-6748
DOI:10.1063/1.1716415
出版商:AIP
年代:1959
数据来源: AIP
|
| 23. |
10−9Sec Resolving Time Coincidence Circuit Based on New Current Limiting Effect in Electron Tubes |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1049-1050
F. Lepri,
Preview
|
|
ISSN:0034-6748
DOI:10.1063/1.1716417
出版商:AIP
年代:1959
数据来源: AIP
|
| 24. |
Illumination Source for Manometers |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1050-1051
C. A. Reynolds,
G. Pearson,
F. Burchbuckler,
J. Burnham,
Preview
|
PDF (148KB)
|
|
ISSN:0034-6748
DOI:10.1063/1.1716418
出版商:AIP
年代:1959
数据来源: AIP
|
| 25. |
Use of Cesium Chloride for Transmitting High Pressures at High Temperatures |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1051-1052
H. W. Schamp,
Preview
|
PDF (141KB)
|
|
ISSN:0034-6748
DOI:10.1063/1.1716419
出版商:AIP
年代:1959
数据来源: AIP
|
| 26. |
Transistor Phase Detector for Phase‐Lock Stabilization of a 30 000‐Mc Klystron |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1052-1053
Robert W. Zimmerer,
Preview
|
PDF (155KB)
|
|
ISSN:0034-6748
DOI:10.1063/1.1716420
出版商:AIP
年代:1959
数据来源: AIP
|
| 27. |
O‐Ring Seals for Glass Apparatus |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1053-1054
W. R. Doty,
Preview
|
|
ISSN:0034-6748
DOI:10.1063/1.1716422
出版商:AIP
年代:1959
数据来源: AIP
|
| 28. |
Liquid Helium Trap for High Pumping Speed at Low Pressures |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1054-1055
Hollis L. Caswell,
Preview
|
PDF (152KB)
|
|
ISSN:0034-6748
DOI:10.1063/1.1716423
出版商:AIP
年代:1959
数据来源: AIP
|
| 29. |
Maze Counters with Borosilicate Shells |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1055-1056
Robert W. Kiser,
Preview
|
|
ISSN:0034-6748
DOI:10.1063/1.1716425
出版商:AIP
年代:1959
数据来源: AIP
|
| 30. |
Christiansen‐Type Transparent Porous Media for Flow Studies |
| |
Review of Scientific Instruments,
Volume 30,
Issue 11,
1959,
Page 1056-1057
John P. Heller,
Preview
|
PDF (213KB)
|
|
ISSN:0034-6748
DOI:10.1063/1.1716426
出版商:AIP
年代:1959
数据来源: AIP
|
首页
