An absolute intensity-calibration method for vacuum ultraviolet spectrometry based on electron impact excitation

Physica ◽  
1973 ◽  
Vol 65 (3) ◽  
pp. 566-578 ◽  
Author(s):  
A.F.J. Van Raan
1972 ◽  
Vol 50 (18) ◽  
pp. 2211-2216 ◽  
Author(s):  
J. W. McConkey ◽  
F. G. Donaldson

'Polarization-free' measurements are presented of the electron impact excitation of Lyman α by electron impact on H2 in the energy range 20–2000 eV. Cross sections are made absolute by normalizing to the data of Mumma and Zipf at 100 eV. A broad maximum in the function occurs around 60 eV, some 20 eV lower than was found by some previous workers. Reasons for this discrepancy are discussed. The high energy behavior of the cross section is analyzed in terms of the Bethe approximation and a value of 0.11 is obtained for the square of the dipole matrix element of the transitions involved.


1989 ◽  
Vol 94 (A7) ◽  
pp. 9093 ◽  
Author(s):  
J. M. Ajello ◽  
K. D. Pang ◽  
B. O. Franklin ◽  
S. K. Howell ◽  
N. J. Bowring

2001 ◽  
Vol 11 (PR2) ◽  
pp. Pr2-309-Pr2-312
Author(s):  
K. M. Aggarwal ◽  
F. P. Keenan ◽  
S. J. Rose

1989 ◽  
Vol 50 (C1) ◽  
pp. C1-405-C1-409
Author(s):  
L. D. GARDNER ◽  
J. L. KOHL ◽  
D. W. SAVIN ◽  
A. R. YOUNG

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