Conceptual design of a new high-resolution powder diffractometer at Jordan Research and Training Reactor

2018 ◽  
Vol 551 ◽  
pp. 390-394
Author(s):  
Saed Almomani ◽  
Baek-Seok Seong
Keyword(s):  
High Resolution ◽  
Conceptual Design ◽  
Powder Diffractometer ◽  
And Training

A conceptual design for a Cassegrain-mounted high-resolution optical spectrograph for large-aperture telescopes

2013 ◽  
Author(s):  
Cynthia S. Froning ◽  
Steven Osterman ◽  
Eric Burgh ◽  
Matthew Beasley ◽  
Paul Scowen ◽  
...  
Keyword(s):  
High Resolution ◽  
Conceptual Design ◽  
Large Aperture

Russian-French High Resolution Multi-Section Neutron Powder Diffractometer

2000 ◽  
Vol 321-324 ◽  
pp. 308-313 ◽  
Author(s):  
A.I. Kurbakov ◽  
V.A. Trounov ◽  
T.K. Baranova ◽  
A.P. Bulkin ◽  
R.P. Dmitriev ◽  
...  
Keyword(s):  
High Resolution ◽  
Powder Diffractometer ◽  
Neutron Powder Diffractometer

Conceptual design of the high resolution neutron spectrometer for ITER

2019 ◽  
Vol 59 (6) ◽  
pp. 065001 ◽  
Author(s):  
Marek Scholz ◽  
Anders Hjalmarsson ◽  
Leszek Hajduk ◽  
Göran Ericsson ◽  
Jerzy Kotula ◽  
...  
Keyword(s):  
High Resolution ◽  
Conceptual Design ◽  
Neutron Spectrometer

Echidna—the new high-resolution powder diffractometer being built at OPAL

2006 ◽  
Vol 385-386 ◽  
pp. 1010-1012 ◽  
Author(s):  
Klaus-Dieter Liss ◽  
Brett Hunter ◽  
Mark Hagen ◽  
Terrence Noakes ◽  
Shane Kennedy
Keyword(s):  
High Resolution ◽  
Powder Diffractometer

scholarly journals Super High Resolution Powder Diffractometer at J-PARC

2011 ◽  
Vol 80 (Suppl.B) ◽  
pp. SB020 ◽  
Author(s):  
Shuki Torii ◽  
Masao Yonemura ◽  
Teguh Yulius Surya Panca Putra ◽  
Junrong Zhang ◽  
Ping Miao ◽  
...  
Keyword(s):  
High Resolution ◽  
Powder Diffractometer

The New Neutron Powder Diffractometer with a Multi-Detector System for High-Efficiency and High-Resolution Measurements

1998 ◽  
Vol 37 (Part 1, No. 6A) ◽  
pp. 3319-3326 ◽  
Author(s):  
Kenji Ohoyama ◽  
Tomonori Kanouchi ◽  
Keiji Nemoto ◽  
Masayoshi Ohashi ◽  
Tsuyoshi Kajitani ◽  
...  
Keyword(s):  
High Resolution ◽  
High Efficiency ◽  
Detector System ◽  
Powder Diffractometer ◽  
Neutron Powder Diffractometer

High-resolution powder diffractometer HRPT for thermal neutrons at SINQ

2000 ◽  
Vol 276-278 ◽  
pp. 146-147 ◽  
Author(s):  
P Fischer ◽  
G Frey ◽  
M Koch ◽  
M Könnecke ◽  
V Pomjakushin ◽  
...  
Keyword(s):  
High Resolution ◽  
Thermal Neutrons ◽  
Powder Diffractometer

Symmetrization of diffraction peak profiles measured with a high-resolution synchrotron X-ray powder diffractometer

2006 ◽  
Vol 39 (1) ◽  
pp. 90-100 ◽  
Author(s):  
T. Ida ◽  
H. Hibino
Keyword(s):  
High Resolution ◽  
A Priori ◽  
Diffraction Peak ◽  
Structure Parameters ◽  
Instrumental Function ◽  
Deconvolution Method ◽  
X Ray ◽  
Powder Diffractometer ◽  
Profile Fitting ◽  
The Asymmetry

The asymmetry of diffraction peak profiles observed with a high-resolution synchrotron powder X-ray diffractometer has been successfully removed by a double deconvolution method. In the first step, the asymmetry caused by the axial divergence aberration of the diffractometer is removed by a whole-pattern deconvolution method based on ana prioritheoretical model for the aberration. In the second step, the residual asymmetry, the origin of which can be ascribed to the aberrations of the beamline optics, is also removed by a whole-pattern deconvolution method, based on an empirical model derived from the analysis of experimental diffraction peak profiles of a standard Si powder (NIST SRM640b). The beamline aberration has been modelled by the convolution of a pseudo-Voigt or Voigt function with an exponential distribution function. It has been found that the angular dependence of the asymmetry parameter in the exponential function is almost proportional to tanθ, which supports the idea that the residual asymmetry should be ascribed mainly to the intrinsic asymmetry in the spectroscopic distribution of the source X-ray supplied by the beamline optics of the synchrotron facility. Recently developed procedures of whole-pattern deconvolution have been improved to treat the singularity of the instrumental function in the measured angular range. Formulae for the whole-pattern deconvolution based on the Williamson–Hall-type dependence of the width parameter of the instrumental function have also been developed. The method was applied to the diffraction intensity data of a standard ZnO powder sample (NIST SRM674) measured with a high-resolution powder diffractometer on beamline BL4B2at the Photon Factory. The structure parameters of ZnO were refined from the integrated peak intensities, which were extracted by an individual profile fitting method applying symmetric profile models. The refined structure parameters coincide fairly well with those obtained from single-crystal data.

Conceptual design of a high resolution Ge array with tracking and imaging capabilities for the DESPEC (FAIR) experiment

2015 ◽  
Vol 10 (06) ◽  
pp. P06010-P06010 ◽  
Author(s):  
M. Doncel ◽  
B. Cederwall ◽  
S. Martín ◽  
B. Quintana ◽  
A. Gadea ◽  
...  
Keyword(s):  
High Resolution ◽  
Conceptual Design
Sign in / Sign up

Export Citation Format

Share Document