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The Diffusion and Absorption of Neutrons in Paraffin Spheres

Yost, Don M. and Dickinson, Roscoe G. (1936) The Diffusion and Absorption of Neutrons in Paraffin Spheres. Physical Review, 50 (2). pp. 128-132. ISSN 0031-899X. http://resolver.caltech.edu/CaltechAUTHORS:YOSpr36

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Abstract

Measurements are described of the activities imparted to silver and to indium detectors placed in paraffin spheres of various sizes with a radon-beryllium source of neutrons located at the center. The results are discussed with the aid of diffusion theory. Reasonably good quantitative agreement is obtained at distances from the source greater than about 8 cm. Various independent estimates are made of the mean free path of the neutrons in paraffin, their specific absorption rate constant, and the ratio of the latter to the diffusion constant. The mean free path is found as 0.53 cm; the ratio of the specific absorption rate constant to the diffusion constant as 0.026 cm^-2.


Item Type:Article
Related URLs:
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http://dx.doi.org/10.1103/PhysRev.50.128DOIUNSPECIFIED
http://link.aps.org/abstract/PR/v50/p128PublisherUNSPECIFIED
Additional Information:©1936 The American Physical Society. Received 11 May 1936. The writers are indebted to Professor C.C. Lauritsen for helpful suggestions and the use of an electroscope, and to Mr. J.E. Walstrom for assistance in the preparation of the neutron sources. Gates Chemical Laboratory, Contribution No. 545.
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Gates Chemical Laboratory545
Record Number:CaltechAUTHORS:YOSpr36
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:YOSpr36
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11819
Collection:CaltechAUTHORS
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Deposited On:02 Oct 2008 05:34
Last Modified:26 Dec 2012 10:21

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