F-band absorption and thermoluminescence in X-ray irradiated Nal single crystals

1981 ◽  
Vol 16 (2) ◽  
pp. 564-567 ◽  
Author(s):  
A. K. Gupta ◽  
K. V. Rao
Keyword(s):  
Single Crystals ◽  
X Ray ◽  
Band Absorption

Effect of laser excitation on F-band absorption and thermoluminescence of X-ray irradiated KBr single crystals

1986 ◽  
Vol 21 (12) ◽  
pp. 4315-4317 ◽  
Author(s):  
G. Prasad ◽  
B. K. Roul ◽  
R. N. P. Chaudhary ◽  
K. V. Rao
Keyword(s):  
Single Crystals ◽  
Laser Excitation ◽  
X Ray ◽  
Band Absorption

F-Band Absorption and Thermoluminescence of KBr Single Crystals X-Ray Irradiated under High AC Fields

1983 ◽  
Vol 120 (2) ◽  
pp. K107-K110 ◽  
Author(s):  
P. K. Chakraborty ◽  
K. V. Rao
Keyword(s):  
Single Crystals ◽  
X Ray ◽  
Band Absorption ◽  
Ac Fields

F-band absorption and thermoluminescence of KCl single crystals under DC field and X-ray irradiation

1979 ◽  
Vol 52 (2) ◽  
pp. K147-K150 ◽  
Author(s):  
A. Subrahmanyam ◽  
K. V. Rao
Keyword(s):  
Single Crystals ◽  
X Ray ◽  
Band Absorption

Zone-axis ALCHEMI for the rapid assessment of site occupancies in garnets

1986 ◽  
Vol 44 ◽  
pp. 706-707
Author(s):  
M.T. Otten ◽  
P.R. Buseck
Keyword(s):  
Single Crystals ◽  
Rapid Assessment ◽  
Site Occupancy ◽  
Zone Axis ◽  
Synthetic Compounds ◽  
X Ray ◽  
Large Group ◽  
Crystallographic Planes

ALCHEMI (Atom Location by CHannelling-Enhanced Microanalysis) is a TEM technique for determining site occupancies in single crystals. The method uses the channelling of incident electrons along specific crystallographic planes. This channelling results in enhanced x-ray emission from the atoms on those planes, thereby providing the required site-occupancy information. ALCHEMI has been applied with success to spinel, olivine and feldspar. For the garnets, which form a large group of important minerals and synthetic compounds, the channelling effect is weaker, and significant results are more difficult to obtain. It was found, however, that the channelling effect is pronounced for low-index zone-axis orientations, yielding a method for assessing site occupancies that is rapid and easy to perform.

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