scholarly journals Intensive evaluation of radiation stability of phlogopite single crystals under high doses of γ-ray irradiation

RSC Advances ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 6199-6210 ◽  
Author(s):  
Honglong Wang ◽  
Yaping Sun ◽  
Jian Chu ◽  
Xu Wang ◽  
Ming Zhang
Keyword(s):  
Single Crystals ◽  
Radiation Stability ◽  
Lattice Plane ◽  
Radiolysis Products ◽  
Γ Ray ◽  
High Doses

Upon irradiation, the framework underwent breakage, H2O underwent radiolysis, and the radiolysis products reacted with the framework, expanding the lattice plane.

Lattice-constant and stress measurement in single crystals: a new method

2005 ◽  
Vol 38 (4) ◽  
pp. 678-684 ◽  
Author(s):  
Balder Ortner
Keyword(s):  
Single Crystal ◽  
Single Crystals ◽  
Lattice Constant ◽  
Stress Measurement ◽  
New Method ◽  
Lattice Plane ◽  
X Ray ◽  
Advantages And Disadvantages

A method for the X-ray determination of lattice-plane distances is given. Similar to Bond's method, it is based on the measurement of rocking curves, with some advantages and disadvantages compared with the former method. The new method is especially designed for single-crystal stress measurement. Its usefulness is demonstrated in two examples of lattice-constant and stress measurement.

scholarly journals A γ-ray diffraction study of extinction in annealed silicon single crystals

1987 ◽  
Vol 43 (a1) ◽  
pp. C210-C210
Author(s):  
J. R. Schneider ◽  
O. Gonçalves ◽  
H. A. Graf ◽  
W. Zulehner
Keyword(s):  
Diffraction Study ◽  
Single Crystals ◽  
Γ Ray

Detoxification of Deoxynivalenol by 60Co γ-ray Irradiation and Toxicity Analyses of Radiolysis Products

2019 ◽  
Vol 102 (6) ◽  
pp. 1749-1755
Author(s):  
Mengmeng Li ◽  
Erqi Guan ◽  
Ke Bian
Keyword(s):  
Body Weight Gain ◽  
Pure Water ◽  
Farm Animals ◽  
Feed Consumption ◽  
Control Group ◽  
Ultra Pure Water ◽  
Radiolysis Products ◽  
Significant Toxicity ◽  
Γ Ray ◽  
Degradation Effect

Background: Deoxynivalenol (DON) is a type B trichothecene that occurs predominantly in grains such as wheat, maize, and barley and has been implicated in incidents of mycotoxicoses in both humans and farm animals. Objective: In the present study, we chose 60Co γ-ray irradiation to degrade DON. Methods: First, the degradation effect of irradiation on DON was analyzed. Second, the toxicity analyses of radiolysis products were studied by oral gavage. Results: The results indicated that 60Co γ-ray irradiation had significant degradation effect on pure DON: when 20 kGy γ-ray irradiation was used for 2 μg/mL DON in acetonitrile–water, the degradation efficiency of DON was 83%, and 2 μg/mL DON in ultra-pure water was completely degraded after 5 kGy γ-ray irradiation. The concentration of 200 μg/mL DON in ultra-pure water had significant toxicity to mice: decreased body weight gain and feed consumption as well as pathological changes in liver and kidney were observed compared with the control group. Conclusions: No significant toxicity was observed in mice that were given these degraded solutions treated by γ-ray irradiation, which indicated that the toxicity of radiolysis products in ultra-pure water had significantly decreased after treatment by γ-ray irradiation. Highlights: This research offered some reference to detoxify DON in cereal grains.

A new design for a γ -ray Compton scattering spectrometer

1985 ◽  
Vol 398 (1815) ◽  
pp. 405-414 ◽  
Keyword(s):  
Single Crystals ◽  
Compton Scattering ◽  
Small Samples ◽  
Compton Profile ◽  
Accurate Data ◽  
Annular Geometry ◽  
Γ Rays ◽  
Γ Ray

A new design for a γ-ray Compton scattering spectrometer is presented. The spectrometer uses an annular geometry that is the inversion of the annular geometry used in earlier experiments with americium γ-rays. A small source is placed directly in front of the detector so that it is the detector and not the source that provides the annulus. Measurements of the Compton profile of aluminium are used to evaluate the new design. For small samples it is possible to increase the intensity by a factor of up to 10 4 while maintaining the resolution. This should make it possible to obtain accurate data for many compounds that could not previously be studied because of the difficulties associated with obtaining large single crystals.

Special features of conductivity of semi-intrinsic CdTe and CdZnTe single crystals used in X- and γ-ray detectors

2010 ◽  
Author(s):  
L. A. Kosyachenko ◽  
E. Diequez ◽  
T. Aoki ◽  
C. P. Lambropoulos ◽  
V. A. Gnatyuk ◽  
...  
Keyword(s):  
Single Crystals ◽  
Γ Ray

Dispersion of the parasitic birefringence induced by lattice plane defects in ZnSe single crystals

1976 ◽  
Vol 37 (2) ◽  
pp. 521-527 ◽  
Author(s):  
J. Daunay ◽  
J. Baillou ◽  
M. Lemercier ◽  
Jac. Daunay ◽  
P. Bugnet ◽  
...  
Keyword(s):  
Single Crystals ◽  
Lattice Plane

NUCLEAR ORIENTATION IN ANTIFERROMAGNETIC SINGLE CRYSTALS

1961 ◽  
Vol 39 (1) ◽  
pp. 53-64 ◽  
Author(s):  
J. M. Daniels ◽  
J. C. Giles ◽  
M. A. R. LeBlanc
Keyword(s):  
Single Crystals ◽  
Nuclear Orientation ◽  
Γ Rays ◽  
Γ Ray

Mn54 and Co60 have been successfully oriented in five antiferromagnetic single crystals (MnCl2∙4H2O, MnBr2∙4H2O, CoCl2∙6H2O, Co(NH4)2(SO4)2∙ 6H2O, and MnSiF6∙6H2O) and the orientation was detected by the anisotropy of the emitted γ rays. Only in the case of Co60 in MnBr2∙4H2O was no γ-ray anisotropy seen. It is concluded that antiferromagnetism can be used as a means of producing nuclear orientation. Attempts to orient Br82 and 1131 in the manganese halides by superexchange were unsuccessful.

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