A PICOSECOND ELECTRON-GUN FOR SURFACE-ANALYSIS

被引：42

作者：

AESCHLIMANN, M ^{[1
]}

HULL, E ^{[1
]}

CAO, J ^{[1
]}

SCHMUTTENMAER, CA ^{[1
]}

JAHN, LG ^{[1
]}

GAO, Y ^{[1
]}

ELSAYEDALI, HE ^{[1
]}

MANTELL, DA ^{[1
]}

SCHEINFEIN, MR ^{[1
]}

机构：

[1] UNIV ROCHESTER,CTR PHOTOINDUCED CHARGE TRANSFER,DEPT CHEM,ROCHESTER,NY 14627

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1995年 / 66卷 / 02期

关键词：

D O I：

10.1063/1.1146036

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Theoretical and experimental investigations for a new design of an ultrashort pulsed laser activated electron gun for time resolved surface analysis are described. In addition, a novel electron detection and image analysis system, as it applies specifically to time resolved reflection high-energy electron diffraction in the multiple-shot operation, are reviewed. Special attention is directed to minimize the photoelectron transit-time spread from the electron gun, in spite of an unusually long focal length and a small convergence angle of the pulsed electron beam. Both requirements are necessary to use the electron gun for diffraction techniques. The design value for the temporal resolution in the synchroscan operation is 1.3 ps. Based on a thorough theoretical investigation, a new electron gun has been designed, constructed, and tested. © 1995 American Institute of Physics.

引用

页码：1000 / 1009

页数：10

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