| 21. |
Mechanically Sealed Beryllium Windows for Permanently Evacuated X‐Ray Tubes |
| |
Review of Scientific Instruments,
Volume 27,
Issue 9,
1956,
Page 759-762
John T. Perry,
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PDF (281KB)
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摘要:
A new type of permanently evacuated x‐ray tube with a mechanically sealed low absorption beryllium window has been developed. The construction and low‐voltage x‐ray output measurements of this tube are presented and discussed.
ISSN:0034-6748
DOI:10.1063/1.1715690
出版商:AIP
年代:1956
数据来源: AIP
|
| 22. |
Recording, Photometric Particle‐Size Analyzer |
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Review of Scientific Instruments,
Volume 27,
Issue 9,
1956,
Page 763-767
N. A. Talvitie,
H. J. Paulus,
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PDF (412KB)
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摘要:
A recording, photometric particle‐size analyzer has been developed which is useful in comparing the particle‐size distributions of dusts in the subsieve range. The instrument follows the progress of the sedimentation of a suspension by means of a collimated beam. Provision for continuously varying the sedimentation depth allows analysis of the entire range within 1 hr. The optical system and temperature control were designed to increase the accuracy of analysis of the finer particles. A simplified system is given for calibrating the sedimentation curves in terms of particle size.
ISSN:0034-6748
DOI:10.1063/1.1715691
出版商:AIP
年代:1956
数据来源: AIP
|
| 23. |
Refractive Index Measurements in the Near Infrared |
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Review of Scientific Instruments,
Volume 27,
Issue 9,
1956,
Page 772-773
A. J. Carlan,
F. W. Paul,
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ISSN:0034-6748
DOI:10.1063/1.1715693
出版商:AIP
年代:1956
数据来源: AIP
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| 24. |
FM Circuit for Magnetically Suspended Ultracentrifuge |
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Review of Scientific Instruments,
Volume 27,
Issue 9,
1956,
Page 773-775
R. C. Williams,
F. H. Schmidt,
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ISSN:0034-6748
DOI:10.1063/1.1715695
出版商:AIP
年代:1956
数据来源: AIP
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