Analysis of Energy-Loss Data for 0.2-0.5 MeV/amup,α, andNin Se

1971 ◽  
Vol 3 (9) ◽  
pp. 2847-2851 ◽  
Author(s):  
Hiroshi Nakata
Keyword(s):  
2019 ◽  
Vol 50 (1) ◽  
Author(s):  
Jeong Eun Chae ◽  
Ji-Soo Kim ◽  
Sang-Yeol Nam ◽  
Min Su Kim ◽  
Jucheol Park

AbstractElectron energy loss spectroscopy (EELS) is an analytical technique that can provide the structural, physical and chemical information of materials. The EELS spectra can be obtained by combining with TEM at sub-nanometer spatial resolution. However, EELS spectral information can’t be obtained easily because in order to interpret EELS spectra, we need to refer to and/or compare many reference data with each other. And in addition to that, we should consider the different experimental variables used to produce each data. Therefore, reliable and easily interpretable EELS standard reference data are needed.Our Electron Energy Loss Data Center (EELDC) has been designated as National Standard Electron Energy Loss Data Center No. 34 to develop EELS standard reference (SR) data and to play a role in dissemination and diffusion of the SR data to users. EELDC has developed and collected EEL SR data for the materials required by major industries and has a total of 82 EEL SR data. Also, we have created an online platform that provides a one-stop-place to help users interpret quickly EELS spectra and get various spectral information. In this paper, we introduce EEL SR data, the homepage of EELDC and how to use them.


1971 ◽  
Vol 49 (11) ◽  
pp. 1437-1444 ◽  
Author(s):  
J. S. Bulger ◽  
J. M. Goodings

Electron energy loss data are presented for CO2, NO2, and SO2 at scattering angles of 0° and 60° and impact energies in the range 30–140 eV. Energy selectors of the 127° type have been used to detect energy losses in the range 0–20 eV. The energy loss data unify and supplement previous work involving a variety of techniques. They are discussed with reference to the Walsh correlation diagram, particularly with regard to the 6a1 molecular orbital with its unusually large variation of binding energy with bond angle. Below the ionization potential, the energy loss spectra are in good agreement with optical data and electron scavenging measurements at threshold; however, the Rydberg transitions have not reached their maximum relative intensities at the incident electron energies used. Excitation peaks corresponding to the ground state ion are observed in CO2 and SO2; for NO2[Formula: see text], a peak appearing at 9.7 eV is attributed to an excitation of the neutral molecule, however, since direct excitation of the ground state ion involves a large change in bond angle. Compared with CO2 and NO2, the SO2 molecule has an extra closed shell of 8 electrons such that the excitation of SO2+ appears to be dominated by autoionization at low incident electron energies. As the energy is increased to 138 eV, four peaks emerge which agree with previous photoelectron and Penning ionization data.


2017 ◽  
Vol 23 (S1) ◽  
pp. 106-107 ◽  
Author(s):  
Niklas Mevenkamp ◽  
Benjamin Berkels ◽  
Martial Duchamp

2012 ◽  
Vol 16 (5) ◽  
pp. 70-74
Author(s):  
L.N. Zamarenova ◽  
E.V. Kotel'nikova ◽  
M.I. Skipa

The power loss model when the signals propagating in the information network hydroacoustic channel on the shelf is considered. The experimental signal propagation power loss data are described by the trend approximated using the functions of the exponential and polynomial type. It is shown that in the case of the signal propagation in the bottom sound channel the trend is described by this approximating functions with the confidence no less than 0,9


1953 ◽  
Vol 6 (1) ◽  
pp. 60 ◽  
Author(s):  
AJ Dyer

The differential and integral range spectra of the hard component of cosmic rays in water have been measured down to a depth of 18�3 m. of water, and the integral results confirm the work of Ehmert (1937) and Wilson (1938) in this region. A lack of statistical accuracy in the differential measurements prevents the possible observation of an anomaly corresponding to 2�5 BeV./c. momentum. A comparison of the range and momentum spectra on the basis of the energy loss data of Halpern and Hall shows satisfactory agreement. The absolute value of the differential intensity is found to be 20 per cent. higher than that given by Rossi (1948) but agrees with the more recent result of York (1952).


1984 ◽  
Vol 106 (8) ◽  
pp. 371-373 ◽  
Author(s):  
H. Geissel ◽  
W.N. Lennard ◽  
H.R. Andrews ◽  
D. Ward ◽  
D. Phillips
Keyword(s):  

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