Coincidence studies of electron emission statistics in ion surface interactions: a new experimental study

被引：2
|
作者：
Ding, L [1 ]
Woolsey, JM
Libiseller, G
McGrath, C
Shah, MB
McCullough, RW
Geddes, J
机构：
[1] Queens Univ Belfast, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim, North Ireland
[2] Univ Stirling, Dept Biol Sci Phys, Stirling FK9 4LA, Scotland
来源：
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 1999年 / 357卷 / 1755期
关键词：
ion beams; surfaces; collisions; electron emission; coincidences;
D O I：
10.1098/rsta.1999.0379
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Electron emission number statistics have been measured for 8 keV H+ ions in collisions with clean polycrystalline copper at 80 degrees and 67 degrees. Also, in a new development, electron number statistics have been recorded for reflected particles using coincidences between the reflected particles and the emitted electrons. The results of both coincidence and non-coincidence measurements fitted Polya distributions, with a higher mean emission value in the coincidence case. A model has been developed to interpret the difference between the coincidence and non-coincidence electron number statistics.
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页码：1381 / 1390
页数：10
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