GB1409309A - Glow-tube suitable for use in x-ray spectrometry - Google Patents

Glow-tube suitable for use in x-ray spectrometry

Info

Publication number
GB1409309A
GB1409309A GB5978772A GB5978772A GB1409309A GB 1409309 A GB1409309 A GB 1409309A GB 5978772 A GB5978772 A GB 5978772A GB 5978772 A GB5978772 A GB 5978772A GB 1409309 A GB1409309 A GB 1409309A
Authority
GB
United Kingdom
Prior art keywords
tube
cathode
dec
gas
axis
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
GB5978772A
Other languages
English (en)
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.)
Societe Nationale des Petroles dAquitaine SA
Original Assignee
Societe Nationale des Petroles dAquitaine 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 Societe Nationale des Petroles dAquitaine SA filed Critical Societe Nationale des Petroles dAquitaine SA
Publication of GB1409309A publication Critical patent/GB1409309A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00Investigating 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
    • G01N23/22Investigating 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
    • G01N23/223Investigating 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J3/00Details of electron-optical or ion-optical arrangements or of ion traps common to two or more basic types of discharge tubes or lamps
    • H01J3/02Electron guns
    • H01J3/021Electron guns using a field emission, photo emission, or secondary emission electron source
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00X-ray tubes
    • H01J35/02Details
    • H01J35/20Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2223/00Investigating materials by wave or particle radiation
    • G01N2223/07Investigating materials by wave or particle radiation secondary emission
    • G01N2223/076X-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)
  • Lasers (AREA)
  • Luminescent Compositions (AREA)
GB5978772A 1971-12-29 1972-12-28 Glow-tube suitable for use in x-ray spectrometry Expired GB1409309A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1409309A true GB1409309A (en) 1975-10-08

Family

ID=9088303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5978772A Expired GB1409309A (en) 1971-12-29 1972-12-28 Glow-tube suitable for use in x-ray spectrometry

Country Status (23)

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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217104A (en) * 1988-04-08 1989-10-18 Tesla Kp Electron gun assembly, especially for an 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 (fr) * 1963-06-11 1964-08-14 Commissariat Energie Atomique Procédé et dispositif de déclenchement d'un détecteur à gaz permettant la localisation de particules nucléaires
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217104A (en) * 1988-04-08 1989-10-18 Tesla Kp Electron gun assembly, especially for an electron microscope

Also Published As

Publication number Publication date
NO139394C (no) 1979-02-28
JPS4881585A (enExample) 1973-10-31
ES410109A1 (es) 1975-12-16
IT972979B (it) 1974-05-31
ZA729131B (en) 1973-11-28
BR7209161D0 (pt) 1973-09-25
DE2264191A1 (de) 1973-07-05
NL7217759A (enExample) 1973-07-03
AT346434B (de) 1978-11-10
CA994480A (fr) 1976-08-03
US3857038A (en) 1974-12-24
NO139394B (no) 1978-11-20
FR2166539A5 (enExample) 1973-08-17
OA04232A (fr) 1979-12-31
CS174866B2 (enExample) 1977-04-29
AU467584B2 (en) 1974-07-04
DD102860A5 (enExample) 1973-12-20
CH569362A5 (enExample) 1975-11-14
IL41186A (en) 1976-04-30
HK14077A (en) 1977-04-01
AU5055772A (en) 1974-07-04
BE793443A (fr) 1973-04-16
AR193002A1 (es) 1973-03-21
LU66756A1 (enExample) 1973-02-27
ATA1116072A (de) 1978-03-15
IL41186A0 (en) 1973-02-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee