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Calculation of cross sections for penning ionization: He*(21S,23S) + H(12S)

✍ Scribed by J.S. Cohen; N.F. Lane

Publisher
Elsevier Science
Year
1971
Tongue
English
Weight
305 KB
Volume
10
Category
Article
ISSN
0009-2614

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✦ Synopsis

Receivwt 10 July 1971

Cross sections for ionization of hydrogen atomi by metastabfe heli& atotis are caIcuIated using the best published values for the compIex potentiaL The present cross section for the singlet metaststabb'is quite different from . . previous determinations, The validity of the JWKB approximation has ken ~rified.

Recently several calculations of cross sections for Penning (an&associative) ionization of atomic hydrogen by

πŸ“œ SIMILAR VOLUMES

Measurements of the cross section for pe
Measurements of the cross section for penning ionization of H by He 23S metastables
✍ M.J. Shaw; R.C. Bolden; R.S. Hemsworth; N.D. Twiddy πŸ“‚ Article πŸ“… 1971 πŸ› Elsevier Science 🌐 English βš– 439 KB

A flowing &e&low apparatus has been used to measure the cross section for Penning ionization of hvdrogen atoms by helium ZZ3S metastable atoms at thermal energy. The result was found to be 22 I 6'~ lo-l6 cm2 at 300Β°K, and protons were identified as the major ion product. A novel method employing arg

Penning electron spectra from ionization
Penning electron spectra from ionization of hydrogen atoms by He(21S) and He(23S) metastables
✍ H. Hotop; E. Illenberger; H. Morgner; A. Niehaus πŸ“‚ Article πŸ“… 1971 πŸ› Elsevier Science 🌐 English βš– 483 KB

Separate Penning election spectra were measured resulting from the ionbation of H ator& by He(Z'S) and Hc(~~S) metastables in thermal collisions. From these results potential parameters of the dhtomics .&(2'S)-H('S) ('C) and He(23S)-H('S) (7 z) as well as the cross-section ratio uQinglet)/o(tripIet)

Total and ionization cross sections for
Total and ionization cross sections for He*(23S)-Ar and He*(21S)-Ar in the thermal energy range
✍ S. Burdenski; R. Feltgen; F. Lichterfeld; H. Pauly πŸ“‚ Article πŸ“… 1981 πŸ› Elsevier Science 🌐 English βš– 462 KB

lntegrai total and Integral iomzatlon cross sections of fle"(2 3S)-Ar and He\*(Z 'S)-Ar have been measured in the c-m. collision energy range 2-230 meV. The data are compared with optxal potentid ulculations givmz prelimmary fits which are discussed.

Substantial angular dependence of the el
Substantial angular dependence of the electron energy spectra for attractive penning ionization systems: He(23S, 21S)+Li(22S)
✍ A. Merz; M.W. MΓΌller; M.-W. Ruf; H. Hotop; W. Meyer; M. Movre πŸ“‚ Article πŸ“… 1989 πŸ› Elsevier Science 🌐 English βš– 768 KB

High-resolution, angular-dependent electron spectrometric studies and ab initio quantum mechanical calculations ofthe simple Penning lonlzation systems He(2 'S, 2 'S)+Li(l'S) are presented, demonstrating the Importance of electron angular distribution effects on the spectra of attractive Penning ion