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Title: Gaseous leak detector

Abstract

In a short path length mass-spectrometer type of helium leak detector wherein the helium trace gas is ionized, accelerated and deflected onto a particle counter, an arrangement is provided for converting the detector to neon leak detection. The magnetic field of the deflection system is lowered so as to bring the non linear fringe area of the magnetic field across the ion path, thereby increasing the amount of deflection of the heavier neon ions.

Inventors:
 [1]
  1. (Aurora, IL)
Issue Date:
Research Org.:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
OSTI Identifier:
866664
Patent Number(s):
4761553
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01M - TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES
DOE Contract Number:  
AC02-76CH03000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gaseous; leak; detector; path; length; mass-spectrometer; type; helium; trace; gas; ionized; accelerated; deflected; particle; counter; arrangement; provided; converting; neon; detection; magnetic; field; deflection; lowered; bring; linear; fringe; increasing; amount; heavier; leak detection; path length; magnetic field; leak detector; helium leak; trace gas; /250/

Citation Formats

Juravic, Jr., Frank E.. Gaseous leak detector. United States: N. p., 1988. Web.
Juravic, Jr., Frank E.. Gaseous leak detector. United States.
Juravic, Jr., Frank E.. Fri . "Gaseous leak detector". United States. https://www.osti.gov/servlets/purl/866664.
@article{osti_866664,
title = {Gaseous leak detector},
author = {Juravic, Jr., Frank E.},
abstractNote = {In a short path length mass-spectrometer type of helium leak detector wherein the helium trace gas is ionized, accelerated and deflected onto a particle counter, an arrangement is provided for converting the detector to neon leak detection. The magnetic field of the deflection system is lowered so as to bring the non linear fringe area of the magnetic field across the ion path, thereby increasing the amount of deflection of the heavier neon ions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {1}
}

Patent:

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