IT972979B - Tubo a gas di emissione di elet troni per spettrometria a raggi x per eccitazione diretta - Google Patents

Tubo a gas di emissione di elet troni per spettrometria a raggi x per eccitazione diretta

Info

Publication number
IT972979B
IT972979B IT33655/72A IT3365572A IT972979B IT 972979 B IT972979 B IT 972979B IT 33655/72 A IT33655/72 A IT 33655/72A IT 3365572 A IT3365572 A IT 3365572A IT 972979 B IT972979 B IT 972979B
Authority
IT
Italy
Prior art keywords
thron
elet
emission
gas tube
direct excitation
Prior art date
Application number
IT33655/72A
Other languages
English (en)
Italian (it)
Inventor
J 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
Application granted granted Critical
Publication of IT972979B publication Critical patent/IT972979B/it

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 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

  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Pathology (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Lasers (AREA)
  • Luminescent Compositions (AREA)
  • X-Ray Techniques (AREA)
IT33655/72A 1971-12-29 1972-12-28 Tubo a gas di emissione di elet troni per spettrometria a raggi x per eccitazione diretta IT972979B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT972979B true IT972979B (it) 1974-05-31

Family

ID=9088303

Family Applications (1)

Application Number Title Priority Date Filing Date
IT33655/72A IT972979B (it) 1971-12-29 1972-12-28 Tubo a gas di emissione di elet troni per spettrometria a raggi x per eccitazione diretta

Country Status (23)

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

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 (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

Also Published As

Publication number Publication date
OA04232A (fr) 1979-12-31
IL41186A0 (en) 1973-02-28
JPS4881585A (fr) 1973-10-31
HK14077A (en) 1977-04-01
AR193002A1 (es) 1973-03-21
NO139394B (no) 1978-11-20
GB1409309A (en) 1975-10-08
DE2264191A1 (de) 1973-07-05
AT346434B (de) 1978-11-10
FR2166539A5 (fr) 1973-08-17
NL7217759A (fr) 1973-07-03
CH569362A5 (fr) 1975-11-14
ATA1116072A (de) 1978-03-15
CS174866B2 (fr) 1977-04-29
BE793443A (fr) 1973-04-16
NO139394C (no) 1979-02-28
LU66756A1 (fr) 1973-02-27
US3857038A (en) 1974-12-24
ZA729131B (en) 1973-11-28
AU5055772A (en) 1974-07-04
IL41186A (en) 1976-04-30
DD102860A5 (fr) 1973-12-20
AU467584B2 (en) 1974-07-04
CA994480A (fr) 1976-08-03
BR7209161D0 (pt) 1973-09-25
ES410109A1 (es) 1975-12-16

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