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A quadratic-field reflectron time-of-flight mass spectrometer incorporating intermediate temporal focusing

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UNSPECIFIED (2000) A quadratic-field reflectron time-of-flight mass spectrometer incorporating intermediate temporal focusing. EUROPEAN JOURNAL OF MASS SPECTROMETRY, 6 (6). pp. 523-530. ISSN 1469-0667.

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Abstract

A time-of-flight mass spectrometer, using a two-electrode cone-plus-hyperboloid geometry to produce a quadratic reflecting field, has been designed, constructed and tested. The included angle of the cone was 90 degrees, Matrix-assisted laser desorption/ionisation and direct laser desorption/ionisation were the methods used to produce ions. Physical constraints imposed by the geometry of the ion mirror were overcome by the use of ion-bunching to form an intermediate temporal focus. Experimental and ion-optical simulation results are presented, showing the large energy-bandwidth of the quadratic-field reflectron and the effectiveness of ion-bunching as a method of producing a temporal focus at the entrance to the ion mirror.

Item Type: Journal Article
Subjects: Q Science > QC Physics
Journal or Publication Title: EUROPEAN JOURNAL OF MASS SPECTROMETRY
Publisher: IM PUBLICATIONS
ISSN: 1469-0667
Official Date: 2000
Dates:
DateEvent
2000UNSPECIFIED
Volume: 6
Number: 6
Number of Pages: 8
Page Range: pp. 523-530
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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