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Nov 1934

Volume 5, Issue 11, pp. 383-410

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Transmutation and Radioactivity Produced by Neutron‐Bombardment

Karl K. Darrow

Rev. Sci. Instrum. 5, 383 (1934); http://dx.doi.org/10.1063/1.1751755 (4 pages)

Online Publication Date: 27 December 2004

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Science in the Public Press

H. A. B.

Rev. Sci. Instrum. 5, 386 (1934); http://dx.doi.org/10.1063/1.1751756 (1 page)

Online Publication Date: 27 December 2004

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Amplifier Systems for the Measurement of Ionization by Single Particles

John R. Dunning

Rev. Sci. Instrum. 5, 387 (1934); http://dx.doi.org/10.1063/1.1751757 (8 pages) | Cited 35 times

Online Publication Date: 27 December 2004

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Practicality of Etched Quartz Crystals for X‐Ray Spectrometers

Lyman G. Parratt

Rev. Sci. Instrum. 5, 395 (1934); http://dx.doi.org/10.1063/1.1751758 (6 pages) | Cited 11 times

Online Publication Date: 27 December 2004

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With a vacuum two‐crystal spectrometer the (1, −1) curves of etched quartz, etched calcite and relatively poor calcite cleavage surfaces have been studied throughout the wave‐length range 0.5 to 5 Angstroms. The widths of the curves at half maximum intensity, the percent reflection, and the coefficient of reflection have been measured. The shapes of the (1, −1) curves vary with wavelength but vary oppositely with quartz and with calcite. The study is primarily concerned with the possibilities of etched quartz as spectrometer crystals. The resolving power of x‐ray spectrometers can be increased by a factor of 2 to 4 by using quartz instead of calcite but the diminution of intensity necessarily associated with such an increase in resolving power may be impractical except for studying relatively strong characteristic radiation.

The Production of Large Single Crystals of Ice

John Mead Adams and William Lewis

Rev. Sci. Instrum. 5, 400 (1934); http://dx.doi.org/10.1063/1.1751759 (3 pages) | Cited 3 times

Online Publication Date: 27 December 2004

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A convenient method for locating the crystalline axes in ice, and therefore for determining the extent of any single crystal of ice in a block, has been developed. Single crystals of ice, satisfying this test, of dimensions limited only by the size of the apparatus, have been prepared.

A Timing Method for Cathode‐Ray Oscillographs

E. V. Sundt and G. H. Fett

Rev. Sci. Instrum. 5, 402 (1934); http://dx.doi.org/10.1063/1.1751760 (3 pages)

Online Publication Date: 27 December 2004

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An Instrument for Continuous Record of Sunshine

L. F. Miller

Rev. Sci. Instrum. 5, 405 (1934); http://dx.doi.org/10.1063/1.1751761 (3 pages) | Cited 1 time

Online Publication Date: 27 December 2004

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A Steady Mercury Lamp for Use in Research

A. L. Johnsrud

Rev. Sci. Instrum. 5, 408 (1934); http://dx.doi.org/10.1063/1.1751762 (1 page)

Online Publication Date: 27 December 2004

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PHYSICS NEWS

Rev. Sci. Instrum. 5, 410 (1934); http://dx.doi.org/10.1063/1.1751763 (1 page)

Online Publication Date: 27 December 2004

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