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Title: APPARATUS FOR THE MASS ANALYSIS OF PLASMA ON A CONTINUOUS BASIS

Abstract

An apparatus for the mass analysis of plasmas on a continuous basis is described. The apparatus comprises a pair of parallel electrodes in a tubular member which serve as a velocity-selecting region for ions drawn by an accelerating potential through a tapered nose cone affixed to the tubular member. The magnetic force and electrostatic forces in the velocity-selecting region are made equal and opposite in direction to prevent the ionic species from striking either of the electrodes as they traverse the region. A pair of parallel plates is positioned within the tubular member and in alignment with the electrodes, but displaced slightly so as not to be seen by direct light coming through the entrance slit of the nose cone, and one of these plates serves as a collector plate. This collector plate is coupled to the vertical amplifier of an oscilloscope or other recorder to provide a continuous indication of the ionic coinposition of the plasma under analysis. ( DELTA EC)

Inventors:
Issue Date:
Research Org.:
Originating Research Org. not identified
OSTI Identifier:
4668506
Patent Number(s):
3096438
Assignee:
U.S. Atomic Energy Commission DTIE; NSA-17-031631
NSA Number:
NSA-17-031631
Resource Type:
Patent
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-63
Country of Publication:
United States
Language:
English
Subject:
PHYSICS; AMPLIFIERS; CONFIGURATION; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ELECTRODES; INSTRUMENTS; IONS; MAGNETIC FIELDS; MASS; MASS SPECTROMETERS; MEASURED VALUES; OSCILLOGRAPHS; PLANNING; PLASMA; PLATES; TUBES; VELOCITY

Citation Formats

Neidigh, R.V. APPARATUS FOR THE MASS ANALYSIS OF PLASMA ON A CONTINUOUS BASIS. United States: N. p., 1963. Web.
Neidigh, R.V. APPARATUS FOR THE MASS ANALYSIS OF PLASMA ON A CONTINUOUS BASIS. United States.
Neidigh, R.V. Mon . "APPARATUS FOR THE MASS ANALYSIS OF PLASMA ON A CONTINUOUS BASIS". United States.
@article{osti_4668506,
title = {APPARATUS FOR THE MASS ANALYSIS OF PLASMA ON A CONTINUOUS BASIS},
author = {Neidigh, R.V.},
abstractNote = {An apparatus for the mass analysis of plasmas on a continuous basis is described. The apparatus comprises a pair of parallel electrodes in a tubular member which serve as a velocity-selecting region for ions drawn by an accelerating potential through a tapered nose cone affixed to the tubular member. The magnetic force and electrostatic forces in the velocity-selecting region are made equal and opposite in direction to prevent the ionic species from striking either of the electrodes as they traverse the region. A pair of parallel plates is positioned within the tubular member and in alignment with the electrodes, but displaced slightly so as not to be seen by direct light coming through the entrance slit of the nose cone, and one of these plates serves as a collector plate. This collector plate is coupled to the vertical amplifier of an oscilloscope or other recorder to provide a continuous indication of the ionic coinposition of the plasma under analysis. ( DELTA EC)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1963},
month = {7}
}