1. |
Physics Building Fund |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 261-262
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PDF (134KB)
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ISSN:0034-6748
DOI:10.1063/1.1770182
出版商:AIP
年代:1943
数据来源: AIP
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2. |
A Sensitive Cathode‐Ray Voltmeter |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 263-265
Zaboj V. Harvalik,
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PDF (182KB)
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ISSN:0034-6748
DOI:10.1063/1.1770183
出版商:AIP
年代:1943
数据来源: AIP
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3. |
A Hydrostatically Supported Cloud Chamber of New Design for Operation at High Pressures |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 265-271
T. H. Johnson,
S. DeBenedetti,
R. P. Shutt,
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PDF (512KB)
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摘要:
A medium‐sized cloud chamber for high pressures is described in which the pressure is sustained by the walls of an oil‐filled steel container rather than by the glass parts of the chamber itself. The chamber is 30 cm in diameter and 9 cm deep, and it was designed to operate at pressures up to 200 atmospheres. When filled at this pressure with argon the gas in the chamber has a stopping power for cosmic rays traversing the diameter equivalent to 80 meters of the atmosphere, 10 cm of water or nearly 1 cm of lead. Because of its high stopping power and a long period of sensitivity this chamber, at the maximum pressure, is approximately one thousand times more effective per expansion for studying rare cosmic‐ray phenomena than the largest chambers which have been operated at normal pressure. Details of the cloud chamber and its auxiliary devices are described.
ISSN:0034-6748
DOI:10.1063/1.1770184
出版商:AIP
年代:1943
数据来源: AIP
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4. |
Zinc Oxide Smoke as a Reference Standard in Electron Wave‐Length Calibration |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 271-273
Chia‐Si Lu,
Earl W. Malmberg,
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PDF (201KB)
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摘要:
Zinc oxide smoke and thinned gold foil were studied with x‐rays and electrons. Our x‐ray values for the lattice constants of zinc oxide and electron diffraction value for its axial ratio agree satisfactorily with Bunn's x‐ray values. Our investigation also reveals no variation in these lattice constants with the age of the sample. With regard to the relative values for the lattice constants of zinc oxide and gold, both methods give consistent results. Our work indicates that the wave‐length calibrations obtainable with zinc oxide smoke and with gold foil are in satisfactory agreement, contrary to the finding of Finch and Wilman.
ISSN:0034-6748
DOI:10.1063/1.1770185
出版商:AIP
年代:1943
数据来源: AIP
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5. |
An Inexpensive Stroboscope for High Speed Photography |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 273-275
Shirleigh Silverman,
Wm. H. Warhus,
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PDF (189KB)
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摘要:
A relatively inexpensive stroboscope of the Edgerton type for high speed photography has been built. A simple lamp of high light efficiency has been developed. Power requirements are of the order of 1 kva, and the parts are of the type found in most laboratories. Satisfactory photographs have been taken at rates up to 300 per second.
ISSN:0034-6748
DOI:10.1063/1.1770186
出版商:AIP
年代:1943
数据来源: AIP
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6. |
A Bridge Controlled Relay Circuit |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 276-277
Howard L. Andrews,
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PDF (61KB)
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ISSN:0034-6748
DOI:10.1063/1.1770187
出版商:AIP
年代:1943
数据来源: AIP
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7. |
A Camera for Stereoscopic Microradiography |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 277-278
G. L. Clark,
R. W. Eyler,
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PDF (183KB)
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ISSN:0034-6748
DOI:10.1063/1.1770188
出版商:AIP
年代:1943
数据来源: AIP
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8. |
New Instruments |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 278-280
W. A. Wildhack,
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ISSN:0034-6748
DOI:10.1063/1.1770190
出版商:AIP
年代:1943
数据来源: AIP
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9. |
New Materials |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 280-280
Forest K. Harris,
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PDF (75KB)
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ISSN:0034-6748
DOI:10.1063/1.1770191
出版商:AIP
年代:1943
数据来源: AIP
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10. |
Regulations and Releases |
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Review of Scientific Instruments,
Volume 14,
Issue 9,
1943,
Page 281-283
George H. Burnham,
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PDF (228KB)
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ISSN:0034-6748
DOI:10.1063/1.1770192
出版商:AIP
年代:1943
数据来源: AIP
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