Polarization Measurements inElastic Scattering
- 15 June 1958
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 110 (6), 1398-1405
- https://doi.org/10.1103/physrev.110.1398
Abstract
The polarization of protons elastically scattered from alpha particles was observed by measuring the asymmetry obtained by doubly scattering protons in helium. Protons from the Brookhaven National Laboratory Van de Graaff generator entered a helium-filled double-scattering chamber through a 50-microinch nickel window. The first scattering was at either 104° 29′ (c.m.) or 73° 38′ (c.m.) and the second scattering was to left and right at 73° 38′ (c.m.). The doubly scattered protons were detected by 50-μ Ilford C-2 plates. The polarization product, , was calculated from the left-right ratio () using the formula , where and are the polarizations at the first and second scatterings, respectively. Three interdependent measurements, in which was equal to , , or , yielded values for , , and . The calculated polarizations are in the direction of the normal n (n=×k|×k|) to the scattering plane. The following results were obtained:
Keywords
This publication has 8 references indexed in Scilit:
- Cooling System for Gas Target Entrance WindowsReview of Scientific Instruments, 1957
- The polarization of 5·3 Mev protons elastically scattered from heliumThe European Physical Journal A, 1956
- Energy Levels of Light Nuclei. VReviews of Modern Physics, 1955
- The Production of Polarized Protons and the Inversion of Energy Levels of the Doublet inPhysical Review B, 1952
- Polarization of Neutrons and Protons by ScatteringPhysical Review B, 1950
- Phase Shifts in Proton-Alpha-ScatteringPhysical Review B, 1949
- Theory of Proposed Reactions Involving Polarized ProtonsPhysical Review B, 1949
- Angular Distribution of 1- to 3.5-Mev Protons Scattered byPhysical Review B, 1949