FACILITY FOR THE DEVELOPMENT OF THE MULTILAYER NEUTRON MIRROR AT KUR

Authors
TASAKI S EBISAWA T AKIYOSHI T KAWAI T OKAMOTO S
Citation
S. Tasaki et al., FACILITY FOR THE DEVELOPMENT OF THE MULTILAYER NEUTRON MIRROR AT KUR, Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment, 355(2-3), 1995, pp. 501-505
Citations number
19
Categorie Soggetti
Nuclear Sciences & Tecnology","Physics, Particles & Fields","Instument & Instrumentation",Spectroscopy
Journal title
Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment → ACNP
ISSN journal
01689002
Volume
355
Issue
2-3
Year of publication
1995
Pages
501 - 505
Database
ISI
SICI code
0168-9002(1995)355:2-3<501:FFTDOT>2.0.ZU;2-7
Abstract
The facility for the development of the multilayer mirror as a device for handling slow neutrons is described. The facility consists of a va cuum evaporation system, a neutron reflectometer and a reflectivity ca lculation program. The properties of the evaporation are discussed. Th e neutron reflectometer makes use of the time-of-flight method and can measure the reflectivity down to 10(-4). In the reflectivity calculat ion program, we adopt a neutron optical method with a modified optical potential, in which the contrast between layers is reduced, and the p otential around the layer boundary is smoothed. It is shown that with a suitable choice of calculation parameters, experimental reflectivity of a supermirror is well reproduced by the calculation.