MASS SPECTROGRAPH WITH CORRECTED IMAGE ERRORS

Journal Article · Mon Sep 01 04:00:00 EDT 1958 · Nuclear Instr.

DOI:https://doi.org/10.1016/0369-643X(58)90016-1· OSTI ID:4300692

Konig, L A; Hintenberger, H

The general expressions for second-order angle aberration, angle- velocity aberration, and velocity aberration of mass spectrometers consisting of a radial electric field and a homogeneous magnetic sector field in series, are developed for the special case of mass spectrographs with double focusing of the first order for all masses along a straight image curve. The possibilities for correcting these image defects are investigated. Tables are presented of solutions for apparatus types in which at one point of the image curve all three or two of the image defects simultaneously vanish. Almost each apparatus wlth simultaneous correction of the three image defects possesses a large radial field. On the other hand there are useful solutions according to which either the two image defects depending on aperture or the two depending on velocity vanish. The numerical calculations were carried out by means of an IBM-magnetic-drum- computer, type 650. The computation procedure is outlined briefiy. (auth)

• Research Organization: Max-Planck-Institut fur Chemie, Mainz
• NSA Number: NSA-12-017579
• OSTI ID: 4300692
• Journal Information: Nuclear Instr., Journal Name: Nuclear Instr. Journal Issue: 3 Vol. Vol: 3; ISSN 0369-643X
• Country of Publication: Country unknown/Code not available
• Language: German

Related Subjects

ANGULAR DISTRIBUTION
COMPUTERS
DOUBLE FOCUSING
ELECTRIC FIELDS
ERRORS
IMAGES
LENSES
MAGNETIC FIELDS
MASS SPECTROMETERS
NUMERICALS
PHYSICS
VELOCITY