Electron and positron pair emission by low energy positron impact on surfaces

2021 ◽  
pp. 100629
Author(s):  
F.O. Schumann ◽  
I.S. Brandt ◽  
Z. Wei ◽  
J. Kirschner ◽  
F. Giebels ◽  
...  
Keyword(s):  
Low Energy ◽  
Positron Impact

Preliminary Measurement of the K-Shell Ionization Cross Sections of Ti by Positron Impact in the Low Energy Region

2012 ◽  
Vol 14 (5) ◽  
pp. 434-437 ◽  
Author(s):  
Lixia Tian ◽  
Mantian Liu ◽  
Jingjun Zhu ◽  
Zhu An ◽  
Baoyi Wang ◽  
...  
Keyword(s):  
Cross Sections ◽  
Energy Region ◽  
Low Energy ◽  
Positron Impact ◽  
Ionization Cross ◽  
Preliminary Measurement ◽  
Ionization Cross Sections ◽  
Shell Ionization

Measurement of Cu K and Ag, In and Sn L X-ray production cross sections by low-energy positron impact

2007 ◽  
Vol 76 (3) ◽  
pp. 465-468 ◽  
Author(s):  
Yasuyuki Nagashima ◽  
Wataru Shigeta ◽  
Toshio Hyodo ◽  
Masaya Iwaki
Keyword(s):  
Cross Sections ◽  
Production Cross ◽  
Low Energy ◽  
Positron Impact ◽  
X Ray

Ion Desorption from TiO2(110) by Low Energy Positron Impact

2017 ◽  
Vol 373 ◽  
pp. 324-327 ◽  
Author(s):  
Takayuki Tachibana ◽  
Luca Chiari ◽  
Masaru Nagira ◽  
Takato Hirayama ◽  
Yasuyuki Nagashima
Keyword(s):  
Positron Annihilation ◽  
Electron Impact ◽  
Impact Ionization ◽  
Low Energy ◽  
Surface Ionization ◽  
Positron Impact ◽  
Ion Desorption ◽  
Incident Positron

We have observed positron-stimulated ion desorption from a TiO2(110) surface. H+ and O+ ions were desorbed at incident positron energies above the desorption thresholds for electron impact. However, only O+ ions were detected at energies below those thresholds. These results suggest that by surface ionization positron annihilation as well as by positron impact leads to the O+ ion desorption. By contrast, it is likely that the H+ ions are not desorbed by positron annihilation, but rather by impact ionization.

Ratio of inner-shell ionization by low energy electron and positron impact

1989 ◽  
Vol 140 (3) ◽  
pp. 114-116 ◽  
Author(s):  
F. Ebel ◽  
W. Faust ◽  
C. Hahn ◽  
M. Rückert ◽  
H. Schneider ◽  
...  
Keyword(s):  
Low Energy ◽  
Energy Electron ◽  
Positron Impact ◽  
Low Energy Electron ◽  
Inner Shell Ionization ◽  
Shell Ionization

STUDY OF INNER-SHELL IONIZATION BY LOW-ENERGY POSITRON IMPACT

2006 ◽  
Author(s):  
Y. NAGASHIMA ◽  
W. SHIGETA ◽  
T. HYODO ◽  
F. SAITO ◽  
Y. ITOH ◽  
...  
Keyword(s):  
Low Energy ◽  
Positron Impact ◽  
Inner Shell Ionization ◽  
Shell Ionization

Measurement of CuK-Shell and AgL-Shell Ionization Cross Sections by Low-Energy Positron Impact

2004 ◽  
Vol 92 (22) ◽  
Author(s):  
Yasuyuki Nagashima ◽  
Fuminori Saito ◽  
Yoshiko Itoh ◽  
Akira Goto ◽  
Toshio Hyodo
Keyword(s):  
Cross Sections ◽  
Low Energy ◽  
Positron Impact ◽  
Ionization Cross ◽  
Ionization Cross Sections ◽  
Shell Ionization
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