Determination of the absolute intensity of the afterglow in flash photolysis of tellurium vapor

1982 ◽  
Vol 12 (10) ◽  
pp. 1364-1365
Author(s):  
A P Ubelis ◽  
A É Lezdin'
Keyword(s):  
Flash Photolysis ◽  
Absolute Intensity ◽  
The Absolute ◽  
Tellurium Vapor

Experimental Determination of Absolute A Coefficients for 'Forbidden' Atomic Oxygen Lines

1975 ◽  
Vol 53 (5) ◽  
pp. 455-458 ◽  
Author(s):  
J. A. Kernahan ◽  
P. H-L. Pang
Keyword(s):  
Experimental Determination ◽  
Atomic Oxygen ◽  
Transition Probabilities ◽  
Absolute Intensity ◽  
Inert Gas ◽  
The Absolute ◽  
Oxygen Discharge

We have obtained the transition probabilities of the 5577 Å, and 6300 Å lines of [OI] by simultaneously measuring the absolute intensity and the population of the upper state of each line in an inert gas–oxygen discharge. Further, we have obtained A values for the 2972 Å and 6364 Å lines by measuring relative intensities of lines from the 1S0 and 1D2 levels.

scholarly journals Remarks on the Efficiencies of Geiger, Proportional, and Cintillation Counters with Application to the Absolute Intensity of Characteristic X-Radiation

1964 ◽  
Vol 17 (2) ◽  
pp. 200
Author(s):  
V Metchnik
Keyword(s):  
Scintillation Counter ◽  
Absolute Intensity ◽  
Geiger Counter ◽  
Counting Efficiency ◽  
Side Window ◽  
Intensity Measurements ◽  
Quantum Counting ◽  
The Absolute ◽  
Good Agreement

The measurements of the absolute intensities of Ou Ka radiation, isolated by means of balanced nickel and iron filters,. necessitated the determination of the quantum counting efficiency of three types of detectors: an end� window argon-filled Geiger counter, a two side-window, xenon-filled proportional counter, and a scintillation counter with NaITI crystal. It is shown that, provided the necessary corrections are made, results of absolute intensity measurements obtained with these three detectors show good agreement.

Polarity Determination in Sphalerite and Wurtzite Structures

1990 ◽  
Vol 48 (2) ◽  
pp. 500-501
Author(s):  
Stuart McKernan ◽  
C. Barry Carter
Keyword(s):  
Opposite Polarity ◽  
Single Domain ◽  
Polar Material ◽  
Electron Microscopic ◽  
Dynamical Interaction ◽  
X Ray ◽  
Polarity Determination ◽  
The Absolute ◽  
Microscopic Techniques

The determination of the absolute polarity of a polar material is often crucial to the understanding of the defects which occur in such materials. Several methods exist by which this determination may be performed. In bulk, single-domain specimens, macroscopic techniques may be used, such as the different etching behavior, using the appropriate etchant, of surfaces with opposite polarity. X-ray measurements under conditions where Friedel’s law (which means that the intensity of reflections from planes of opposite polarity are indistinguishable) breaks down can also be used to determine the absolute polarity of bulk, single-domain specimens. On the microscopic scale, and particularly where antiphase boundaries (APBs), which separate regions of opposite polarity exist, electron microscopic techniques must be employed. Two techniques are commonly practised; the first [1], involves the dynamical interaction of hoLz lines which interfere constructively or destructively with the zero order reflection, depending on the crystal polarity. The crystal polarity can therefore be directly deduced from the relative intensity of these interactions.

A DORIS determination of the absolute velocities of the Sorsdal and Mellor glaciers in Antarctica

2010 ◽  
Vol 45 (12) ◽  
pp. 1523-1534 ◽  
Author(s):  
R. Govind ◽  
J.J. Valette ◽  
F.G. Lemoine
Keyword(s):  
The Absolute

scholarly journals Rapid Organocatalytic Chirality Analysis of Amines, Amino Acids, Alcohols, Amino Alcohols and Diols with Achiral Iso(thio)cyanate Probes

2021 ◽  
Author(s):  
Eryn Nelson ◽  
Jeffrey S. S. K. Formen ◽  
Christian Wolf
Keyword(s):  
Amino Acids ◽  
Absolute Configuration ◽  
Rapid Determination ◽  
Amino Alcohols ◽  
Enantioselective Synthesis ◽  
Widespread Occurrence ◽  
Chiral Compounds ◽  
New Methods ◽  
The Absolute

The widespread occurrence and significance of chiral compounds does not only require new methods for their enantioselective synthesis but also efficient tools that allow rapid determination of the absolute configuration,...

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