Détection optique de niveaux hautement excités du Ne produits par impact électronique

1976 ◽  
Vol 54 (12) ◽  
pp. 1208-1215 ◽  
Author(s):  
P. Veillette ◽  
P. Marchand
Keyword(s):  
Energy Range ◽  
Electron Impact ◽  
Electron Energy ◽  
Incident Electron ◽  
Negative Ion ◽  
Incident Electron Energy ◽  
Near Ultraviolet

The measurement of the intensity of the radiation emitted in the visible and near ultraviolet by Ne atoms excited by electron impact, as a function of the incident electron energy, shows many structures in the energy range 42 to 54 eV. They are attributed to excitation levels of the form 2s2p6nl, 2s22p4nln 'l' and to negative ion resonances.

Structures observées dans la courbe d'émission photonique de N2 entre 11.00 et 15.50 eV

1977 ◽  
Vol 55 (24) ◽  
pp. 2134-2141 ◽  
Author(s):  
Paul Veillette ◽  
Pierre Marchand
Keyword(s):  
Electron Impact ◽  
Electron Energy ◽  
Incident Electron ◽  
Ionization Threshold ◽  
Negative Ion ◽  
Incident Electron Energy ◽  
Photon Yield

The measurement of the broadband photon yield of N2 molecules excited by electron impact, as a function of the incident electron energy, shows many structures below the ionization threshold. Most of them are due to the formation of negative ion resonances N2−.

scholarly journals Measurements of electron emission under electron impact on BN sample for incident electron energy between 10 eV and 1000 eV

2019 ◽  
Vol 127 (2) ◽  
pp. 23001 ◽  
Author(s):  
M. Villemant ◽  
M. Belhaj ◽  
P. Sarrailh ◽  
S. Dadouch ◽  
L. Garrigues ◽  
...  
Keyword(s):  
Electron Impact ◽  
Electron Energy ◽  
Electron Emission ◽  
Incident Electron ◽  
Incident Electron Energy

The reaction 7Li(e, 3H)4He,e′ between 6 and 15 MeV

1977 ◽  
Vol 55 (3) ◽  
pp. 252-253 ◽  
Author(s):  
M. K. Leung ◽  
J. J. Murphy II ◽  
Y. M. Shin ◽  
D. M. Skopik
Keyword(s):  
Energy Range ◽  
Electron Energy ◽  
Cross Sections ◽  
Electric Dipole ◽  
Incident Electron ◽  
Incident Electron Energy ◽  
Sum Rule

Tritons resulting from the electrodisintegration of 7Li have been measured at 90° for an incident electron energy of 23.8 MeV over an energy range which ensured that only tritons emitted in the two-body channel were detected. The electrodisintegration cross sections were converted to equivalent photodisintegration data and compared to earlier results. Large discrepancies are observed. It is found that the (γ,3H) channel contributes appreciably to the electric dipole sum rule for 7Li.

Collisional Excitation of Ground State Hydrogenic Ions

1973 ◽  
Vol 51 (19) ◽  
pp. 2047-2053 ◽  
Author(s):  
John A. Tully
Keyword(s):  
Electron Impact ◽  
Electron Energy ◽  
Ground State ◽  
Born Approximation ◽  
Incident Electron ◽  
Impact Excitation ◽  
Incident Electron Energy ◽  
Electron Impact Excitation ◽  
Collisional Excitation ◽  
Hydrogenic Ions

The nonrelativistic Coulomb–Born approximation has been used to compute scaled collision strengths for electron impact excitation of the 1s → ns, np, nd transitions in hydrogenic ions. Results are given for n = 2, 3, 4, 5, 6, [Formula: see text] as a function of the incident electron energy in threshold units. Simple formulae for interpolating the tabulated results are also given.

THE FORMULAS FOR THE SECONDARY ELECTRON YIELD AT HIGH INCIDENT ELECTRON ENERGY FROM GOLD AND ALUMINUM

2009 ◽  
Vol 23 (19) ◽  
pp. 2331-2338 ◽  
Author(s):  
AI-GEN XIE ◽  
CHUAN-QI LI ◽  
TIE-BANG WANG ◽  
YUAN-JI PEI
Keyword(s):  
Energy Range ◽  
Electron Energy ◽  
Incident Energy ◽  
Secondary Electron ◽  
Primary Electron ◽  
Incident Electron ◽  
Experimental Results ◽  
Incident Electron Energy ◽  
Secondary Electron Yield ◽  
Electron Yield

Based on the main physical processes of secondary electron emission from metals, the relation that the product of the number of secondary electron released per primary electron at high incident electron energy and the (n-1)th power of incident energy of primary electron is equal to constant C was deduced, where n is the energy exponent, based on the relation between the number of secondary electron released per primary electron at high incident electron energy and secondary electron yield. The relation that the product of the secondary electron yield at high incident electron energy and the (n-1)th power of incident energy of primary electron is equal to constant D was deduced. The constant D and the energy exponent n of the primary electron in the energy range 10 to 100 keV hitting on gold and aluminum are computed with the ESTAR program and experimental results in scanning electron microscope (SEM), respectively, therefore, the formulas for the incident energy dependence of secondary electron yield in the energy range 10 to 100 keV from gold and aluminum were deduced. The formulas were proved to be true by experimental results in SEM. The results were discussed and a conclusion was drawn. The formulas from gold and aluminum were successfully deduced.

Dependence of charge buildup in the polyimide on the incident electron energy

2006 ◽  
Vol 100 (3) ◽  
pp. 034913 ◽  
Author(s):  
S. K. Mahapatra ◽  
S. D. Dhole ◽  
V. N. Bhoraskar ◽  
Gorur G. Raju
Keyword(s):  
Electron Energy ◽  
Incident Electron ◽  
Incident Electron Energy

scholarly journals Out-of-plane ( e,2e ) measurements and calculations on He autoionizing levels as a function of incident-electron energy

2018 ◽  
Vol 97 (5) ◽  
Author(s):  
N. L. S. Martin ◽  
C. M. Weaver ◽  
B. N. Kim ◽  
B. A. deHarak ◽  
O. Zatsarinny ◽  
...  
Keyword(s):  
Electron Energy ◽  
Incident Electron ◽  
Incident Electron Energy ◽  
Out Of Plane

Angular distributions of the 12C(e,p)e′ reaction at Ee = 200 MeV

1981 ◽  
Vol 59 (2) ◽  
pp. 271-274 ◽  
Author(s):  
G. J. Lolos ◽  
S. Hontzeas ◽  
R. M. Sealock
Keyword(s):  
Electron Energy ◽  
Cross Sections ◽  
Differential Cross ◽  
Proton Energy ◽  
Incident Electron ◽  
Incident Electron Energy ◽  
Angular Distributions ◽  
Differential Cross Sections ◽  
Good Agreement

Double differential cross sections at six angles ranging from 45° to 143° have been measured for the 12C(e,p)e′ reaction. The proton energy ranged from 15.6 to 17.2 MeV at an incident electron energy of 200 MeV. At the backward angles our results are in good agreement with data reported by Vysotskaya and Afanas'ev but for forward angles the results are lower.

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