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Title: On radiation by electrons in a betatron

Abstract

Julian Schwinger produced this paper in preprint form in 1945 and, apparently, distributed it only to a few selected colleagues at the time. He later presented the results as a 15-minute invited paper in 1946, at an American Physical Society meeting, under the title "Electron Radiation in High Energy Accelerators" (the abstract is published in Phys. Rev. 70, 798 (1946)). Although he published this work four years later in revised form ("On the Classical Radiation of Accelerated Electrons," Phys. Rev. 75, 1912 (1949)), this original version seems fresher and, in some respects, superior to the published one, hence my motivation to make it widely available. For example, the discussion of coherent radiation (shielded and unshielded) included in this version was wholly omitted in the published paper. In addition, this version exhibits many explicit calculations that are of pedagogical value even today for students of synchrotron radiation. But perhaps the most interesting aspect of this paper is that it shows so well the author's superb dexterity in manipulating mathematical expressions to obtain physical conclusions with clarity and efficiency.

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1195620
Report Number(s):
LBNL-39088
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Technical Report
Resource Relation:
Related Information: Transcribed by Miguel A Furman
Country of Publication:
United States
Language:
English

Citation Formats

Schwinger, J. On radiation by electrons in a betatron. United States: N. p., 1996. Web. doi:10.2172/1195620.
Schwinger, J. On radiation by electrons in a betatron. United States. doi:10.2172/1195620.
Schwinger, J. Wed . "On radiation by electrons in a betatron". United States. doi:10.2172/1195620. https://www.osti.gov/servlets/purl/1195620.
@article{osti_1195620,
title = {On radiation by electrons in a betatron},
author = {Schwinger, J.},
abstractNote = {Julian Schwinger produced this paper in preprint form in 1945 and, apparently, distributed it only to a few selected colleagues at the time. He later presented the results as a 15-minute invited paper in 1946, at an American Physical Society meeting, under the title "Electron Radiation in High Energy Accelerators" (the abstract is published in Phys. Rev. 70, 798 (1946)). Although he published this work four years later in revised form ("On the Classical Radiation of Accelerated Electrons," Phys. Rev. 75, 1912 (1949)), this original version seems fresher and, in some respects, superior to the published one, hence my motivation to make it widely available. For example, the discussion of coherent radiation (shielded and unshielded) included in this version was wholly omitted in the published paper. In addition, this version exhibits many explicit calculations that are of pedagogical value even today for students of synchrotron radiation. But perhaps the most interesting aspect of this paper is that it shows so well the author's superb dexterity in manipulating mathematical expressions to obtain physical conclusions with clarity and efficiency.},
doi = {10.2172/1195620},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 31 00:00:00 EDT 1996},
month = {Wed Jul 31 00:00:00 EDT 1996}
}

Technical Report:

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