Three-electron Auger process from beam-foil excited multiply charged ions

被引:16
作者
De Filippo, Enrico [2 ]
Lanzano, Gaetano [2 ]
Rothard, Hermann [1 ]
Volant, Claude [3 ]
机构
[1] Univ Caen Basse Normandie, CEA CNRS UMR 6252 ENSICAEN, Ctr Rech Ions Mat & Photon, CIMAP CIRIP GANIL, F-14070 Caen 05, France
[2] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy
[3] CEA Saclay, DAPNIA SPhN, F-91191 Gif Sur Yvette, France
关键词
D O I
10.1103/PhysRevLett.100.233202
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Electron emission from collisions of C(3+) ions (22.7 A MeV) with carbon foils (21, 49 and 90 mu g/cm(2)) was studied by the time-of-flight method. Two prominent emission patterns can be readily identified as "binary encounter" electrons and "cusp" electrons. With the thinnest target only, a third structure is visible at slightly lower time-of-flight (thus slightly higher energy) than the cusp electrons. The energy of these electrons would correspond to 647(-104)(+116) eV if they were emitted from the projectile frame of reference. A possible explanation is a rare three-electron-Auger K(2)L(2)L(1) process.
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