Secondary electron emission from thin carbon foils under hydrogen cluster impact
The yields of backward and forward electrons resulting from H n + cluster ( n=1–13) interactions with carbon foils in the 40–120 keV/proton energy range have been measured as a function of the cluster size and of the foil thickness. A strong reduction of both backward and forward yields per proton i...
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Published in: | Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms Beam interactions with materials and atoms, 1996-05, Vol.112 (1), p.79-82 |
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Main Authors: | , , , , , , , |
Format: | Article |
Language: | eng |
Online Access: | Get full text |
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Summary: | The yields of backward and forward electrons resulting from H
n
+ cluster (
n=1–13) interactions with carbon foils in the 40–120 keV/proton energy range have been measured as a function of the cluster size and of the foil thickness. A strong reduction of both backward and forward yields per proton is observed in comparison to free proton yields, with a saturation for
n ⋍ 9. Surprisingly the forward cluster effect persists for foils as thick as 3000 Å. |
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ISSN: | 0168-583X 1872-9584 |