FR2102930A5 - Impurities in solids - using a spark mass spectrometer - Google Patents

Impurities in solids - using a spark mass spectrometer

Info

Publication number
FR2102930A5
FR2102930A5 FR7031653A FR7031653A FR2102930A5 FR 2102930 A5 FR2102930 A5 FR 2102930A5 FR 7031653 A FR7031653 A FR 7031653A FR 7031653 A FR7031653 A FR 7031653A FR 2102930 A5 FR2102930 A5 FR 2102930A5
Authority
FR
France
Prior art keywords
electrodes
solids
impurities
spark
mass spectrometer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7031653A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thomson CSF SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thomson CSF SA filed Critical Thomson CSF SA
Priority to FR7031653A priority Critical patent/FR2102930A5/en
Application granted granted Critical
Publication of FR2102930A5 publication Critical patent/FR2102930A5/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/10—Ion sources; Ion guns
    • H01J49/18—Ion sources; Ion guns using spark ionisation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J49/00—Particle spectrometers or separator tubes
    • H01J49/02—Details
    • H01J49/022—Circuit arrangements, e.g. for generating deviation currents or voltages ; Components associated with high voltage supply

Abstract

In a spark, mass spectrometer for the analysis of impurities in solids, of the known type having two electrodes fabricated in the material to be analysed, mounted in an evacuated enclosure and connected to a high frequency electrical energy source, the distance between the electrodes being variable, the spark is stabilised by a circuit for detecting the voltage across the electrodes and a further circuit for detecting the current passing through the electrodes, the output of which in turn is connected to a device for adjusting the distance between the electrodes so as to maintain a constant ratio of applied voltage to current through the electrodes.
FR7031653A 1970-08-31 1970-08-31 Impurities in solids - using a spark mass spectrometer Expired FR2102930A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7031653A FR2102930A5 (en) 1970-08-31 1970-08-31 Impurities in solids - using a spark mass spectrometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7031653A FR2102930A5 (en) 1970-08-31 1970-08-31 Impurities in solids - using a spark mass spectrometer

Publications (1)

Publication Number Publication Date
FR2102930A5 true FR2102930A5 (en) 1972-04-07

Family

ID=9060728

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7031653A Expired FR2102930A5 (en) 1970-08-31 1970-08-31 Impurities in solids - using a spark mass spectrometer

Country Status (1)

Country Link
FR (1) FR2102930A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215485B2 (en) 2010-06-30 2019-02-26 Shell Oil Company Method of treating a hydrocarbon stream comprising methane, and an apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10215485B2 (en) 2010-06-30 2019-02-26 Shell Oil Company Method of treating a hydrocarbon stream comprising methane, and an apparatus therefor

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Legal Events

Date Code Title Description
ST Notification of lapse