GB1052523A - - Google Patents

Info

Publication number
GB1052523A
GB1052523A GB1052523DA GB1052523A GB 1052523 A GB1052523 A GB 1052523A GB 1052523D A GB1052523D A GB 1052523DA GB 1052523 A GB1052523 A GB 1052523A
Authority
GB
United Kingdom
Prior art keywords
neutrons
fast
ionization chamber
chamber
fast neutron
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.)
Active
Application number
Publication of GB1052523A publication Critical patent/GB1052523A/en
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J47/00—Tubes for determining the presence, intensity, density or energy of radiation or particles
    • H01J47/12—Neutron detector tubes, e.g. BF3 tubes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/62—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode
    • G01N27/64—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
    • G01N27/66—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating the ionisation of gases, e.g. aerosols; by investigating electric discharges, e.g. emission of cathode using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber and measuring current or voltage

Abstract

1,052,523. Detecting neutrons. VAKUTRONIK VEB. Feb. 26, 1964, No. 7982/64. Heading G6P. In a humidity measuring device, fast neutrons are scattered by the moisture hydrogen atoms and the slow neutrons so produced generate a current from the reaction :- B<10>(n,alpha)Li<7>. The ionization chamber is mounted between the fast neutron source and the material under test. The fast neutron flux passes through the chamber into the material. Neutrons backscattered by the hydrogen in the test material return into the ionization chamber and react with boron located as a coating on electrodes.
GB1052523D Active GB1052523A (en)

Publications (1)

Publication Number Publication Date
GB1052523A true GB1052523A (en)

Family

ID=1757054

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1052523D Active GB1052523A (en)

Country Status (1)

Country Link
GB (1) GB1052523A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586918A2 (en) 2004-03-31 2005-10-19 Thermo Electron Corporation Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber
US8223913B2 (en) 2004-03-31 2012-07-17 Thermo Fisher Scientific Inc. Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1586918A2 (en) 2004-03-31 2005-10-19 Thermo Electron Corporation Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber
EP1586918A3 (en) * 2004-03-31 2006-04-12 Thermo Electron Corporation Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber
US7368726B2 (en) 2004-03-31 2008-05-06 Thermo Fisher Scientific Inc. Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber
US8223913B2 (en) 2004-03-31 2012-07-17 Thermo Fisher Scientific Inc. Method and apparatus for detecting high-energy radiation using a pulse mode ion chamber

Similar Documents

Publication Publication Date Title
Herman et al. A Crossed‐Beam Apparatus for Investigation of Ion‐Molecule Reactions
GB828121A (en) Apparatus responsive to the composition of a gaseous medium
Giles et al. Determination of fluorine by the spectrometry of prompt gamma-rays
CN102374999B (en) Neutron flux is increased by gamma shielding
GB1052523A (en)
Freeman et al. The accurate determination of some (p, n) thresholds in the proton energy range 5 to 10 MeV
US6717413B1 (en) Contact potential difference ionization detector
Lindstrom et al. Measuring hydrogen by cold-neutron prompt-gamma activation analysis
JPH01255146A (en) Ionizing method and device for high pressure mass analysis
Barber Specific ionization by high-energy electrons
Kasahara et al. Standard samples and calibration of PIXE analysis
Bohne et al. Beam-current measurement based on residual gas ionization
GB1116427A (en) Improvements in or relating to the measurement of the gas content of metals
US4146796A (en) Apparatus for radiation source depth determination in a material
US3160753A (en) Method and means for measuring hardness
US3688118A (en) Selective neutron sensor
Rauhala et al. An external beam method for ion backscattering
US3086116A (en) Apparatus for determining radioactive material ratios
Driver Tritium Survey Instruments
GB782534A (en) Improvements in and relating to a method and an instrument for measuring a vacuum
US3223840A (en) Method and apparatus for measuring the property of a magnetizable workpiece using nuclear radiation
CN208140054U (en) A kind of paper sheet thickness detection device
US3009096A (en) Method and apparatus for testing gases
US3076894A (en) Gamma ray thickness gauges
SU934346A1 (en) Method of determining molecular impurities in heavy noble gases