RSI Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

Sep 1942

Volume 13, Issue 9, pp. 379-412


Selective Service Policies. Part II. Dependency Classification

Rev. Sci. Instrum. 13, 379 (1942); http://dx.doi.org/10.1063/1.1770068 (5 pages)

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Abstract Unavailable

Ross Filter Foils by Evaporation

J. C. Clark and R. H. Esling

Rev. Sci. Instrum. 13, 383 (1942); http://dx.doi.org/10.1063/1.1770069 (4 pages)

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Show Abstract
A method is described wherein metallic foils of those elements not available in rolled foil form may be prepared for use as absorbing foils in Ross balanced filters for x‐ray analysis. Powdered antimony was evaporated in vacuum from a heated crucible to form a deposit 0.0015 cm thick on Cellophane backing, and the foil thus prepared was balanced with a rolled tin foil. A curve is given which shows the relationship between the amount of metal evaporated and the corresponding thickness of deposit. This method increases the applicability of the Ross balanced filters to x‐ray measurements by adding several essentially monochromatic pass bands to those previously available.

A 20‐Million Electron‐Volt Betatron or Induction Accelerator

D. W. Kerst

Rev. Sci. Instrum. 13, 387 (1942); http://dx.doi.org/10.1063/1.1770070 (8 pages) | Cited 26 times

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Show Abstract
The details of construction of an improved induction accelerator which gives electrons 20‐million electron‐volts energy are described. The accelerator has a 19‐inch diameter pole face and weighs approximately 3.5 tons. The x‐ray output as measured in a thick wall ionization chamber is 16 r.p.m. at one meter. The most important improvement incorporated in this accelerator is the electromagnetic expansion of the equilibrium orbit which can be timed to send the electrons against the target at any desired energy up to 20 million electron volts. The accelerator is now in use at the University of Illinois.

A Non‐Fouling Hydrogen Liquefier

E. R. Blanchard and H. W. Bittner

Rev. Sci. Instrum. 13, 394 (1942); http://dx.doi.org/10.1063/1.1770071 (12 pages) | Cited 2 times

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Show Abstract
A description is given of: (a) the construction and operation of a complete throttle expansion hydrogen liquefaction cycle employing the Kapitza circuit for operation with ordinary commercial gas without fouling of the heat exchangers by low freezing impurities; (b) a simple scheme for employing ``dry ice'' as a supplementary precooling agent which effects a considerable saving in the amount of liquid nitrogen used by the liquefier; (c) a satisfactory method of soldering together a Kapitza side‐by‐side multiple tube interchanger; (d) an efficient and easily built combination heat exchanger and trap for freezing out water and oil vapor from large, rapid streams of compressed gas.
back to top
RSS Feeds

Note on ``Direct Pen Recording of Galvanometer Deflections''

D. J. Pompeo and C. J. Penther

Rev. Sci. Instrum. 13, 405 (1942); http://dx.doi.org/10.1063/1.1770072 (1 page)

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Abstract Unavailable

A Range Switch for Ballistic Galvanometers

Eugene F. Coleman

Rev. Sci. Instrum. 13, 405 (1942); http://dx.doi.org/10.1063/1.1770073 (2 pages)

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Abstract Unavailable
back to top
RSS Feeds
back to top New Instruments

New Instruments

Wm. F. Roeser

Rev. Sci. Instrum. 13, 406 (1942); http://dx.doi.org/10.1063/1.1770074 (3 pages)

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Abstract Unavailable
back to top Regulations and Releases

Regulations and Releases

George H. Burnham

Rev. Sci. Instrum. 13, 408 (1942); http://dx.doi.org/10.1063/1.1770075 (5 pages) | Cited 2 times

Online Publication Date: 27 December 2004

Full Text: | Download PDF

Abstract Unavailable
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close