Differential ionization measurements for electron and positron impact on atoms

1999 ◽  
Vol 09 (PR6) ◽  
pp. Pr6-195-Pr6-198
Author(s):  
R. D. DuBois
Keyword(s):  
Positron Impact

Positron Impact Ionisation of Xe

2018 ◽  
Vol 8 (4) ◽  
pp. 21-24
Author(s):  
Sujeet Kumar ◽  
Brij Mohan Prasad Singh ◽  
S. K. Shrivastava
Keyword(s):  
Positron Impact ◽  
Impact Ionisation

scholarly journals Few Body Effects in the Electron and Positron Impact Ionization of Atoms

Atoms ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 33
Author(s):  
R.I. Campeanu ◽  
Colm T. Whelan
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Differential Cross ◽  
Impact Ionization ◽  
Inert Gas ◽  
Interference Effects ◽  
Positron Impact ◽  
Competing Interactions ◽  
Energy Sharing

Triple differential cross sections (TDCS) are presented for the electron and positron impact ionization of inert gas atoms in a range of energy sharing geometries where a number of significant few body effects compete to define the shape of the TDCS. Using both positrons and electrons as projectiles has opened up the possibility of performing complementary studies which could effectively isolate competing interactions that cannot be separately detected in an experiment with a single projectile. Results will be presented in kinematics where the electron impact ionization appears to be well understood and using the same kinematics positron cross sections will be presented. The kinematics are then varied in order to focus on the role of distortion, post collision interaction (pci), and interference effects.

Double ionization of helium by electron and positron impact

2006 ◽  
Vol 39 (4) ◽  
pp. 955-964 ◽  
Author(s):  
Ritu Dey ◽  
A C Roy ◽  
C Dal Cappello
Keyword(s):  
Double Ionization ◽  
Positron Impact

Multiple ionization of argon by positron impact

1996 ◽  
Vol 74 (7-8) ◽  
pp. 373-375 ◽  
Author(s):  
R. Hippler ◽  
S. Helms ◽  
U. Brinkmann ◽  
J. Deiwiks ◽  
H. Schneider ◽  
...  
Keyword(s):  
Electron Impact ◽  
Cross Sections ◽  
Experimental Results ◽  
Positronium Formation ◽  
Positron Impact ◽  
Single Ionization ◽  
Multiple Ionization

Recent experimental results for the multiple ionization of argon by positron impact have been reanalysed. Absolute cross sections for the double and triple ionization of argon were obtained from measured ratios of double-to-single and triple-to-single ionization, using known cross sections for single ionization and for positronium formation. Distinct differences compared to similar results for electron impact are noted.

Two-center approach to fully differential positron-impact ionization of hydrogen

2014 ◽  
Vol 89 (1) ◽  
Author(s):  
A. S. Kadyrov ◽  
J. J. Bailey ◽  
I. Bray ◽  
A. T. Stelbovics
Keyword(s):  
Impact Ionization ◽  
Positron Impact ◽  
Fully Differential

scholarly journals K-shell ionization of atoms by electron and positron impact

1993 ◽  
Vol 48 (2) ◽  
pp. 1209-1213 ◽  
Author(s):  
S. P. Khare ◽  
Vandana Saksena ◽  
J. M. Wadehra
Keyword(s):  
Positron Impact ◽  
Shell Ionization

Positron-impact ionization of helium in the distorted-wave polarized-orbital method

1989 ◽  
Vol 39 (4) ◽  
pp. 1756-1759 ◽  
Author(s):  
K. K. Mukherjee ◽  
P. S. Mazumdar ◽  
S. Brajamani
Keyword(s):  
Impact Ionization ◽  
Orbital Method ◽  
Distorted Wave ◽  
Positron Impact

Excitation of Helium by Positron Impact and a Comparison with Electron Data

1987 ◽  
pp. 419-420
Author(s):  
R. P. McEachran ◽  
L. A. Parcell ◽  
A. D. Stauffer ◽  
T. Zuo
Keyword(s):  
Positron Impact
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