OA04232A - Electron emission gas tube for X-ray spectrometry by direct excitation. - Google Patents

Electron emission gas tube for X-ray spectrometry by direct excitation.

Info

Publication number
OA04232A
OA04232A OA54779A OA54779A OA04232A OA 04232 A OA04232 A OA 04232A OA 54779 A OA54779 A OA 54779A OA 54779 A OA54779 A OA 54779A OA 04232 A OA04232 A OA 04232A
Authority
OA
OAPI
Prior art keywords
electron emission
gas tube
emission gas
direct excitation
ray spectrometry
Prior art date
Application number
OA54779A
Other languages
French (fr)
Inventor
Jean Sahores
Original Assignee
Aquitaine Petrole
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 Aquitaine Petrole filed Critical Aquitaine Petrole
Publication of OA04232A publication Critical patent/OA04232A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
    • G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00—Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02—Electron guns
    • H01J3/021—Electron guns using a field emission, photo emission, or secondary emission electron source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/20—Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00—Investigating materials by wave or particle radiation
    • G01N2223/07—Investigating materials by wave or particle radiation secondary emission
    • G01N2223/076—X-ray fluorescence

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • X-Ray Techniques (AREA)
  • Luminescent Compositions (AREA)
  • Lasers (AREA)
OA54779A 1971-12-29 1972-12-13 Electron emission gas tube for X-ray spectrometry by direct excitation. OA04232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7147290A FR2166539A5 (en) 1971-12-29 1971-12-29

Publications (1)

Publication Number Publication Date
OA04232A true OA04232A (en) 1979-12-31

Family

ID=9088303

Family Applications (1)

Application Number Title Priority Date Filing Date
OA54779A OA04232A (en) 1971-12-29 1972-12-13 Electron emission gas tube for X-ray spectrometry by direct excitation.

Country Status (23)

Country Link
US (1) US3857038A (en)
JP (1) JPS4881585A (en)
AR (1) AR193002A1 (en)
AT (1) AT346434B (en)
AU (1) AU467584B2 (en)
BE (1) BE793443A (en)
BR (1) BR7209161D0 (en)
CA (1) CA994480A (en)
CH (1) CH569362A5 (en)
CS (1) CS174866B2 (en)
DD (1) DD102860A5 (en)
DE (1) DE2264191A1 (en)
ES (1) ES410109A1 (en)
FR (1) FR2166539A5 (en)
GB (1) GB1409309A (en)
HK (1) HK14077A (en)
IL (1) IL41186A (en)
IT (1) IT972979B (en)
LU (1) LU66756A1 (en)
NL (1) NL7217759A (en)
NO (1) NO139394C (en)
OA (1) OA04232A (en)
ZA (1) ZA729131B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CS268377B1 (en) * 1988-04-08 1990-03-14 Emil Ing Vratnicek Electron gun for electron microscope

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2521656A (en) * 1945-12-13 1950-09-05 Emilio G Segre Ionization chamber
US3118064A (en) * 1961-08-30 1964-01-14 Frank H Attix New type of free air ionization chamber
FR1369414A (en) * 1963-06-11 1964-08-14 Commissariat Energie Atomique Method and device for triggering a gas detector for locating nuclear particles
US3601612A (en) * 1969-08-22 1971-08-24 Atomic Energy Commission Wire spark chamber with magnetostrictive readout
US3681600A (en) * 1969-10-24 1972-08-01 Perkin Elmer Corp Retarding field electron spectrometer

Also Published As

Publication number Publication date
CA994480A (en) 1976-08-03
AT346434B (en) 1978-11-10
BR7209161D0 (en) 1973-09-25
AU467584B2 (en) 1974-07-04
IL41186A0 (en) 1973-02-28
NL7217759A (en) 1973-07-03
DE2264191A1 (en) 1973-07-05
US3857038A (en) 1974-12-24
JPS4881585A (en) 1973-10-31
ES410109A1 (en) 1975-12-16
CH569362A5 (en) 1975-11-14
AU5055772A (en) 1974-07-04
CS174866B2 (en) 1977-04-29
DD102860A5 (en) 1973-12-20
NO139394B (en) 1978-11-20
LU66756A1 (en) 1973-02-27
ZA729131B (en) 1973-11-28
GB1409309A (en) 1975-10-08
FR2166539A5 (en) 1973-08-17
ATA1116072A (en) 1978-03-15
HK14077A (en) 1977-04-01
AR193002A1 (en) 1973-03-21
IL41186A (en) 1976-04-30
BE793443A (en) 1973-04-16
IT972979B (en) 1974-05-31
NO139394C (en) 1979-02-28

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