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A dual-motion mössbauer absorber system with extra-wide black region and its applications for precisionf-measurements

Authors
Journal
Nuclear Instruments and Methods
0029-554X
Publisher
Elsevier
Publication Date
Volume
94
Issue
2
Identifiers
DOI: 10.1016/0029-554x(71)90570-2

Abstract

Abstract A system is described in which the width of the black region of a 57Fe black absorber is tripled by moving two absorbers with opposite velocities while keeping a third absorber stationary. In this way, recoilless fractions of quadrupole split sources can be measured. Other applications of the system are discussed. An accurate correction is obtained for the residual transmission of black absorbers.

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