Accession Number : AD0750659

Title :   Direct Transition Features in Stripping Collisions of Heavy Neutral Atoms and Ions.

Descriptive Note : Topical research rept.,

Corporate Author : CORNELL UNIV ITHACA N Y LAB OF PLASMA STUDIES

Personal Author(s) : Fleischmann,Hans H. ; Dehmel,Rh. C. ; Lee,S. K.

Report Date : JUL 1971

Pagination or Media Count : 47

Abstract : Previously published experimental data on single-electrons tripping for over 100 different neutral-neutral and almost 100 ion-neutral collision pairs are compared with Firsov's statistical ionization model. Reasonable agreement is found for a number of reactions, in particular for collisions between some rare gas atoms. However, marked disagreement exists for many other collisions. From a model assuming a single-step transition of the ionized electron from the bound state into the continuum, a scaling law is developed semi-empirically which is found able to reduce a large majority of these published data to within a factor 2 of a general cross section curve. (Author)

Descriptors :   (*GAS IONIZATION, ATOMS), INTERACTIONS, THEORY, MATHEMATICAL ANALYSIS, DIFFERENTIAL CROSS SECTIONS

Subject Categories : Physical Chemistry
      Plasma Physics and Magnetohydrodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE