A NEW-REGIME WILEY-MCLAREN TIME-OF-FLIGHT MASS-SPECTROMETER

被引：58

作者：

CHANDEZON, F

HUBER, B

RISTORI, C

机构：

[1] CEA, Département de Recherche Fondamentale sur la Matière Condensée, F-38054 Grenoble Cedex 9, 17, rue des Martyrs

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 11期

关键词：

D O I：

10.1063/1.1144571

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A modified version of the classic Wiley-McLaren time-of-flight mass spectrometer (TOFMS) is presented here. Owing to a second-order compensation of the initial position effect, a mass resolution m/δm higher than 2000 is obtained with large ion volumes, of the order of 0.2 cm3 for Na +55 (1265 a.m.u.). Sodium clusters Na+ n with n up to 530 (≃12200 a.m.u.) are separated. The spectrometer can be used for the analysis of ionized clusters in a mass range from 1 to about 20000 a.m.u. as well as for the measurement of the kinetic energy of molecular fragments after a Coulomb explosion of a molecule. The performance of this spectrometer is demonstrated with sodium clusters and molecules.

引用

页码：3344 / 3353

页数：10

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