THE THEORY OF SMALL-ANGLE MULTIPLE SCATTERING OF FAST CHARGED PARTICLES
Journal Article
·
· Reviews of Modern Physics (U.S.)
A systematic unified review is given of the basic statistical theory of the multiple scattering of fast charged particles in the small-angle range. The approximation considered is that of the Snyder-Scott-Moliere theory, and only slight attention is given to the less accurate Gaussian approximation. The single-scattering formulas of Moliere are derived, along with the modifications of them given by Nigam, Sundaresan, and Wu. Moliere's multiple-scattering calculation is presented by an improvement of Bethe's method, and the work of Nigam is given by the same method with newly computed tables. Snyder's calculations are outlined, and previously unpublished work on spatial-angle scattering is reported with tables. Calculations by Keil, Zeitler, and Zinn for very thin films are given, as well as a detailed discussion following Lenz on scattering at very small angles. The work of Muhlschlegel and Koppe on the multiple scattering of polarized electrons is included, with the important correction that no depolarization appears in the approximation to which they worked. The distributions of lateral deflections and other characteristics are considered, but the details of applications to emulsions, cloud and bubble chambers, etc, are not entered into, nor are the electron-penetration and pathlength problems handled. Asymptotic formulas for relatively large angles are treated, as are various types of mean values. (auth)
- Research Organization:
- Univ. of Nevada, Reno
- NSA Number:
- NSA-17-040249
- OSTI ID:
- 4625174
- Journal Information:
- Reviews of Modern Physics (U.S.), Journal Name: Reviews of Modern Physics (U.S.) Vol. Vol: 35; ISSN RMPHA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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