Observation of Pendell\"{o}sung Fringes by Using Pulsed Neutrons
Shigeyasu Itoh, Masaya Nakaji, Yuya Uchida, Masaaki Kitaguchi, and, Hirohiko M. Shimizu
TL;DR
This paper demonstrates the observation of Pendell"osung interference fringes in a silicon crystal using pulsed cold neutrons, enabling precise measurement of nuclear scattering length through time-of-flight analysis.
Contribution
It introduces a novel method of observing Pendell"osung fringes with pulsed neutrons and accurately determining the nuclear scattering length of silicon.
Findings
Nuclear scattering length of silicon measured as 4.159 fm.
Successful application of pulsed neutron beams for Pendell"osung fringe observation.
Validation of time-of-flight analysis for fringe observation.
Abstract
Pendell\"{o}sung interference fringes of a single silicon crystal were observed by using pulsed cold neutrons. The nuclear scattering length of silicon was obtained as (4.159\pm0.003(stat.)\pm0.028(syst.)) fm using the observed Pendell\"{o}sung fringes. This indicates the applicability of pulsed neutron beam to observe the Pendell\"{o}sung fringes by using the time-of-flight analysis.
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Taxonomy
TopicsCrystallography and Radiation Phenomena · Nuclear Physics and Applications · Electromagnetic Effects on Materials