X-ray Compton scattering experiments for fluid alkali metals at high temperatures and pressures

2015 ◽  
Author(s):  
K. Matsuda ◽  
T. Fukumaru ◽  
K. Kimura ◽  
K. Tamura ◽  
M. Katoh ◽  
...  
Keyword(s):  
Compton Scattering ◽  
High Temperatures ◽  
Alkali Metals ◽  
X Ray

scholarly journals Molybdenum cell for x-ray diffraction measurements of fluid alkali metals at high temperatures and high pressures

2004 ◽  
Vol 75 (3) ◽  
pp. 709-712 ◽  
Author(s):  
Kazuhiro Matsuda ◽  
Kozaburo Tamura ◽  
Masahiro Katoh ◽  
Masanori Inui
Keyword(s):  
High Temperatures ◽  
Alkali Metals ◽  
High Pressures ◽  
X Ray Diffraction ◽  
X Ray

scholarly journals The impact of point defects in n-type GaN layers on thermal decomposition of InGaN/GaN QWs

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Mikolaj Grabowski ◽  
Ewa Grzanka ◽  
Szymon Grzanka ◽  
Artur Lachowski ◽  
Julita Smalc-Koziorowska ◽  
...  
Keyword(s):  
Quantum Wells ◽  
High Temperatures ◽  
Point Defects ◽  
X Ray Diffraction ◽  
Helium Ions ◽  
X Ray ◽  
Sapphire Substrates ◽  
Transmission Electron ◽  
The Impact ◽  
Ingan Quantum Wells

AbstractThe aim of this paper is to give an experimental evidence that point defects (most probably gallium vacancies) induce decomposition of InGaN quantum wells (QWs) at high temperatures. In the experiment performed, we implanted GaN:Si/sapphire substrates with helium ions in order to introduce a high density of point defects. Then, we grew InGaN QWs on such substrates at temperature of 730 °C, what caused elimination of most (but not all) of the implantation-induced point defects expanding the crystal lattice. The InGaN QWs were almost identical to those grown on unimplanted GaN substrates. In the next step of the experiment, we annealed samples grown on unimplanted and implanted GaN at temperatures of 900 °C, 920 °C and 940 °C for half an hour. The samples were examined using Photoluminescence, X-ray Diffraction and Transmission Electron Microscopy. We found out that the decomposition of InGaN QWs started at lower temperatures for the samples grown on the implanted GaN substrates what provides a strong experimental support that point defects play important role in InGaN decomposition at high temperatures.

scholarly journals Effect on Compton Scattering Spectra by Hermite–Gaussian Light

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 650
Author(s):  
Akane Agui ◽  
Hiroshi Sakurai ◽  
Naruki Tsuji ◽  
Haruka Ito ◽  
Kiyofumi Nitta
Keyword(s):  
Compton Scattering ◽  
X Rays ◽  
Harmonic Order ◽  
X Ray ◽  
Scattering Spectra

In this study, we measured the Compton scattering spectra of Al, Ag and Au metals changing the harmonic order of X-rays from an undulator. The width of the Compton scattered X-ray spectrum changed depending on the harmonic order of X-rays. This indicates that Compton scattering spectra shape reflects a momentum perpendicular to the traveling direction in Hermite–Gaussian (HG) light.

SUMMARY OF WORKING GROUP 4: APPLICATIONS OF HIGH BRIGHTNESS BEAMS TO ADVANCED ACCELERATORS AND LIGHTS SOURCES

2007 ◽  
Vol 22 (23) ◽  
pp. 4265-4269
Author(s):  
MITSURU UESAKA ◽  
ANDREA ROSSI
Keyword(s):  
Compton Scattering ◽  
Working Group ◽  
High Brightness ◽  
X Ray ◽  
Group 4 ◽  
Wakefield Acceleration ◽  
Plasma Wakefield

We categorized 16 contributions into the three sub-fields. Those are 1. Compton scattering X-ray sources, 2. FEL and RF photoinjectors and 3. Plasma wakefield acceleration/innovative acceleration schemes. We performed a half day working group for each sub-field. The titles and summaries of the contributions appear in the article.

X-Ray Photoelectron Spectroscopic Study of Oxidation of InP II: Thermal Oxides Grown at High Temperatures

1993 ◽  
Vol 32 (Part 1, No. 3A) ◽  
pp. 1197-1200 ◽  
Author(s):  
Noboru Shibata ◽  
Hideaki Ikoma
Keyword(s):  
Spectroscopic Study ◽  
High Temperatures ◽  
X Ray

An x‐ray spectrometer for Compton scattering

1992 ◽  
Vol 63 (1) ◽  
pp. 1190-1193 ◽  
Author(s):  
Y. Sakurai ◽  
M. Ito ◽  
T. Urai ◽  
Y. Tanaka ◽  
N. Sakai ◽  
...  
Keyword(s):  
Compton Scattering ◽  
X Ray

Detection and sizing by X-ray Compton scattering of near-surface cracks under weld deposited cladding

1991 ◽  
Vol 24 (5) ◽  
pp. 247-251 ◽  
Author(s):  
D. Babot ◽  
G. Berodias ◽  
G. Peix
Keyword(s):  
Compton Scattering ◽  
Surface Cracks ◽  
Near Surface ◽  
X Ray

The Study of the Interaction of the Components of Imitator-Glasses of Glassified Radioactive Wastes With Various Surrounding Rocks

1981 ◽  
Vol 6 ◽  
Author(s):  
V. I. Spitsyn ◽  
A. A. Minaev ◽  
L. I. Barsova ◽  
P. Ya. Glazunov ◽  
V. N. Vetchkanov
Keyword(s):  
Gamma Irradiation ◽  
High Temperatures ◽  
Phosphate Glass ◽  
Phosphate Glasses ◽  
Radioactive Wastes ◽  
X Ray ◽  
Enhanced Diffusion ◽  
Radiation Enhanced Diffusion

ABSTRACTThis work is one of the first attempts to work out a proper technique for the determination of the diffusion of the phosphate glass components into various rocks by using X-ray microanalysis. Under study was thermal and radiationenhanced diffusion of phosphorus, chromium from phosphate glasses into the samples of basalt, metagabbro, metadunite and quartz at high temperatures (to 600°) during gamma irradiation. Radiation enhanced diffusion of ions into rocks.

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