MEASUREMENT OF SPIN POLARIZATION OF ELECTRON BEAMS
Thesis/Dissertation
·
OSTI ID:4705597
A polarization detector using Mott scattering is described. This detector was calibrited with a doublescattering experiment. The detector can be used for the determination of very small polarization degrees of the order of 4 x 10/sup -3/. For an accurate measurement of polarization in several minutes a primary current of 10/sup -10/ amp is needed. The spin polarization of unpolarized electrons after transmission through thin magnetized iron foils is studied. The results indicate that the polarization cross section for 60 kev electrons is smaller than 10 cm/sup 2/. The polarization cross section is the sum of the spin exchange cross section and the spin-dependent fraction of the total scattering cross section. The last fraction was calculated using the theory of Moller scattering. The theoretical value is smaller than the upper limit of the polarization cross section by more than one order of magnitude. (Gmelin Inst.)
- Research Organization:
- Originating Research Org. not identified
- NSA Number:
- NSA-17-026244
- OSTI ID:
- 4705597
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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