Mass Spectrometers and Mass Spectrographs Corrected for Image Defects

Hintenberger, H.; Konig, Luca

doi:10.1016/b978-0-08-009210-2.50008-0

Cited by 26 publications

(6 citation statements)

References 14 publications

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“…1. to form an image within the ESA with a parallel beam after the electric field [8]; 2. to use two electrostatic analyzers with an image formed between the two electric sectors [9]; and 3. to use an electrostatic quadrupole lens. The exit focal point of the ESA coincides with the focal point of the quadrupole such that the ion beam is parallel after quadrupole element [10].…”

Section: Normal System Where the Ion Beam Is Parallel Before The Magnetmentioning

confidence: 99%

A new mass spectrograph

Matsuo

Ishihara

1993

J. Am. Soc. Mass Spectrom.

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The optical designs of two new types of mass spectrographs were studied. The first is a system that possesses a specially shaped magnet output boundary to satisfy the double-focusing condition for a wide mass range. The focal plane is usually curved. The second system is one in which a parallel ion beam is generated before the magnet, forming a straight double-focusing line. By introducing a quadrupole lens doublet such that the ion beam may be deflected in the same direction through the electric and magnetic fields, the overall image magnification can be arbitrarily controlled and stigmatic focusing achieved for the median ray.

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Section: Normal System Where the Ion Beam Is Parallel Before The Magnetmentioning

confidence: 99%

A new mass spectrograph

Matsuo

Ishihara

1993

J. Am. Soc. Mass Spectrom.

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“…Choosing a curved virtual boundary will allow some formulas to be simplified, if a suitable curvature radius p is taken. On the other hand, this results in no additional problems, for the focusing features of curved boundary homogeneous sector fields were fully investigated by Hintenberger and Konig (1959). The equations of motion of the charged particle in the ideal field are Hereafter crossed quantities will apply to the motion in the ideal field.…”

Section: The Equations Of Motionmentioning

confidence: 99%

The trajectories of charged particles in magnetic fringe fields

Bosi¹

1970

J. Phys. D: Appl. Phys.

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“…When an ion leaving the source has a certain angular divergence a, and at the same time differs from the mean velocity by a fraction /3, the deflection in the y direction after passing through the field is given by (Hintenberger and Konig 1959)…”

Section: Aberrationsmentioning

confidence: 99%

“…The ion optics of mass spectrometers have been studied by several workers, in particular Herzog (1934) and Hintenberger and Konig (1957). Ewald and Liebl(l955) have extended the study of the electrostatic field analyser to the toroidal field configuration, of which the cylindrical condenser used most often is a special case.…”

Section: Introductionmentioning

confidence: 99%

“…Certain loss of accuracy is inevitable with this form of presentation, but it is hoped that it will provide a clearer picture of what actually happens in a mass spectrometer. Recourse to the mathematical formulae or to worked-out design solutions (Hintenberger and Konig 1959) will obviously be necessary to obtain an accurate answer to the problem. The present paper is confined to the focusing properties and ion-optical behaviour of the cylindrical condenser.…”

Section: Introductionmentioning

confidence: 99%

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