Zero‐Dimensional Cs 3 Cu 2 I 5 Perovskite Single Crystal as Sensitive X‐Ray and γ‐Ray Scintillator

2020 ◽  
Vol 14 (11) ◽  
pp. 2000374
Author(s):  
Shuangliang Cheng ◽  
Alena Beitlerova ◽  
Romana Kucerkova ◽  
Martin Nikl ◽  
Guohao Ren ◽  
...  
Keyword(s):  
Single Crystal ◽  
X Ray ◽  
Γ Ray

ELECTRON SPIN RESONANCE OF AN X-RAY IRRADIATED SINGLE CRYSTAL OF DIKETOPIPERAZINE

1963 ◽  
Vol 41 (1) ◽  
pp. 9-13 ◽  
Author(s):  
W. C. Lin ◽  
C. A. McDowell
Keyword(s):  
Magnetic Field ◽  
Electron Spin Resonance ◽  
Hydrogen Atom ◽  
Hyperfine Interaction ◽  
Single Crystal ◽  
Electron Spin ◽  
X Ray ◽  
Spin Resonance ◽  
Interaction Tensor ◽  
Γ Ray

The electron spin resonance of an X-ray irradiated single crystal of diketopiperazine has been measured at 9 Gc/sec for various orientations of the crystal in the static magnetic field. From an analysis of the hyperfine structure observed we have been able to calculate the components of the hyperfine interaction tensor for the radical produced by the irradiation. The principal values for the hyperfine interaction tensor are similar to those found for the radical produced by the X-ray or γ-ray irradiation of glycylglycine and N-acetylglycine and is therefore attributed to a radical with a C—H fragment. The fine details of the spectrum indicate that the radical responsible for the electron resonance observed probably has the structure [Formula: see text]which is formed from diketopiperazine by the loss of a hydrogen atom from one of the CH2 groups in that molecule.

ELECTRON SPIN RESONANCE OF X-RAY-IRRADIATED SINGLE CRYSTALS OF dl-ALANINE HYDROCHLORIDE

1962 ◽  
Vol 40 (6) ◽  
pp. 1060-1063 ◽  
Author(s):  
W. C. Lin ◽  
C. A. McDowell
Keyword(s):  
Electron Spin Resonance ◽  
Hyperfine Interaction ◽  
Single Crystal ◽  
Single Crystals ◽  
Electron Spin ◽  
X Ray ◽  
Spin Resonance ◽  
Interaction Tensor ◽  
Γ Ray

The electron spin resonance of an X-ray-irradiated single crystal of dl-alanine hydrochloride indicates that the radical formed is probably the same as that produced by X- and γ-ray irradiation of alanine. The components of the hyperfine interaction tensor for the radical have been evaluated.

High-flux micro-resonators for X-ray and γ-ray lasers

1978 ◽  
Vol 34 (6) ◽  
pp. 1028-1029 ◽  
Author(s):  
W. A. Denne
Keyword(s):  
Single Crystal ◽  
Flux Density ◽  
Radiative Flux ◽  
High Flux ◽  
X Ray ◽  
Wide Range ◽  
Γ Ray ◽  
Small Single Crystal

It is shown that a small single crystal may resonate at a wide range of X- and γ-ray frequencies. Such a resonator should produce roughly 1011 times greater radiative flux density per photon than previous designs.

Electron Microscopy of Shock Loaded Polycrystalline Beryllium

1974 ◽  
Vol 32 ◽  
pp. 506-507 ◽  
Author(s):  
J. M. Galbraith ◽  
L. E. Murr ◽  
A. L. Stevens
Keyword(s):  
Electron Microscopy ◽  
Wave Propagation ◽  
Structural Change ◽  
Single Crystal ◽  
Diffraction Pattern ◽  
Shock Loading ◽  
Slip Systems ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
X Ray

Uniaxial compression tests and hydrostatic tests at pressures up to 27 kbars have been performed to determine operating slip systems in single crystal and polycrystal1ine beryllium. A recent study has been made of wave propagation in single crystal beryllium by shock loading to selectively activate various slip systems, and this has been followed by a study of wave propagation and spallation in textured, polycrystal1ine beryllium. An alteration in the X-ray diffraction pattern has been noted after shock loading, but this alteration has not yet been correlated with any structural change occurring during shock loading of polycrystal1ine beryllium.This study is being conducted in an effort to characterize the effects of shock loading on textured, polycrystal1ine beryllium. Samples were fabricated from a billet of Kawecki-Berylco hot pressed HP-10 beryllium.

Crystal structure of an inclusion complex between chiral monoaza-15-crown-5 and S(–)-1-phenyl-ethyl ammonium percholorate

2003 ◽  
Vol 218 (5) ◽  
Author(s):  
Süheyla Özbey ◽  
F. B. Kaynak ◽  
M. Toğrul ◽  
N. Demirel ◽  
H. Hoşgören
Keyword(s):  
Crystal Structure ◽  
Inclusion Complex ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
New Type

AbstractA new type of inclusion complex, S(–)-1 phenyl ethyl ammonium percholorate complex of R-(–)-2-ethyl - N - benzyl - 4, 7, 10, 13 - tetraoxa -1- azacyclopentadecane, has been prepared and studied by NMR, IR and single crystal X-ray diffraction techniques. The compound crystallizes in space group

Single Crystal Growth of High-Pressure Phases of Ice and Salt Hydrate Far Below the Original Melting Point by Mixing Alcohol: Crystal Structure Determination of Magnesium Chloride Heptahydrate

2020 ◽  
Author(s):  
Keishiro Yamashita ◽  
Kazuki Komatsu ◽  
Hiroyuki Kagi
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
Crystal Growth ◽  
Single Crystal ◽  
Room Temperature ◽  
Growth Technique ◽  
Salt Hydrate ◽  
X Ray

An crystal-growth technique for single crystal x-ray structure analysis of high-pressure forms of hydrogen-bonded crystals is proposed. We used alcohol mixture (methanol: ethanol = 4:1 in volumetric ratio), which is a widely used pressure transmitting medium, inhibiting the nucleation and growth of unwanted crystals. In this paper, two kinds of single crystals which have not been obtained using a conventional experimental technique were obtained using this technique: ice VI at 1.99 GPa and MgCl<sub>2</sub>·7H<sub>2</sub>O at 2.50 GPa at room temperature. Here we first report the crystal structure of MgCl2·7H2O. This technique simultaneously meets the requirement of hydrostaticity for high-pressure experiments and has feasibility for further in-situ measurements.

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