New type of versatile neutron diffractometer with a double-crystal monochromator system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F15%3A00451717" target="_blank" >RIV/61389005:_____/15:00451717 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1017/S0885715614001201" target="_blank" >http://dx.doi.org/10.1017/S0885715614001201</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1017/S0885715614001201" target="_blank" >10.1017/S0885715614001201</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New type of versatile neutron diffractometer with a double-crystal monochromator system

Popis výsledku v původním jazyce

Properties of a special double-crystal (DC) monochromator employing bent-perfect crystals of Si in (1, 1) and (n, m) settings are presented. The first monochromator was the bent Si(111) crystal (4 mm thickness) and the second one was in the form of a sandwich consisting of two bent Si (111) and Si(220) slabs (2 and 1.3 mm thickness, respectively). It has been found that by a simple exchange of diffraction conditions on the second monochromator one can use either Si(111) + Si (111) bent crystals in (1, 1) setting providing good luminosity and worse diffractometer resolution or Si(111) + Si(220) bent crystals in quasi-dispersive (n, m) setting providing very good diffractometer resolution and correspondingly weaker luminosity. It has been found that besides an excellent focusing and reflectivity properties of the dispersive double-bent-crystal setting the obtained monochromatic neutron current is sufficiently high for diffraction experiments even at the mediumpower research reactor.

Název v anglickém jazyce

New type of versatile neutron diffractometer with a double-crystal monochromator system

Popis výsledku anglicky

Properties of a special double-crystal (DC) monochromator employing bent-perfect crystals of Si in (1, 1) and (n, m) settings are presented. The first monochromator was the bent Si(111) crystal (4 mm thickness) and the second one was in the form of a sandwich consisting of two bent Si (111) and Si(220) slabs (2 and 1.3 mm thickness, respectively). It has been found that by a simple exchange of diffraction conditions on the second monochromator one can use either Si(111) + Si (111) bent crystals in (1, 1) setting providing good luminosity and worse diffractometer resolution or Si(111) + Si(220) bent crystals in quasi-dispersive (n, m) setting providing very good diffractometer resolution and correspondingly weaker luminosity. It has been found that besides an excellent focusing and reflectivity properties of the dispersive double-bent-crystal setting the obtained monochromatic neutron current is sufficiently high for diffraction experiments even at the mediumpower research reactor.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Powder Diffraction

ISSN

0885-7156

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

S1

Stát vydavatele periodika

CA - Kanada

Počet stran výsledku

6

Strana od-do

41-46

Kód UT WoS článku

000370164300008

EID výsledku v databázi Scopus

2-s2.0-84929843609