GB1057425A - Improvements in and relating to radiation detectors - Google Patents

Improvements in and relating to radiation detectors

Info

Publication number
GB1057425A
GB1057425A GB38690/64A GB3869064A GB1057425A GB 1057425 A GB1057425 A GB 1057425A GB 38690/64 A GB38690/64 A GB 38690/64A GB 3869064 A GB3869064 A GB 3869064A GB 1057425 A GB1057425 A GB 1057425A
Authority
GB
United Kingdom
Prior art keywords
dipole
tube
sept
oscillator
wave
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
GB38690/64A
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.)
Microtherm Ltd
Original Assignee
Microtherm Ltd
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 Microtherm Ltd filed Critical Microtherm Ltd
Publication of GB1057425A publication Critical patent/GB1057425A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0864—Measuring electromagnetic field characteristics characterised by constructional or functional features
    • G01R29/0871—Complete apparatus or systems; circuits, e.g. receivers or amplifiers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
    • G01R29/08—Measuring electromagnetic field characteristics
    • G01R29/0807—Measuring electromagnetic field characteristics characterised by the application
    • G01R29/0814—Field measurements related to measuring influence on or from apparatus, components or humans, e.g. in ESD, EMI, EMC, EMP testing, measuring radiation leakage; detecting presence of micro- or radiowave emitters; dosimetry; testing shielding; measurements related to lightning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/14—Magnetic means for controlling the discharge

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Measurement Of Radiation (AREA)

Abstract

1057425 Testing micro-wave equipment MICROTHERM Ltd 22 Sept 1964 [30 Sept 1963] 38690/64 Headings G1U U5T1B U5T2A U5T2C and U5P18 Apparatus for detecting when radiation from micro-wave equipment exceeds a predetermined safety level comprises a gas discharge tube 10 provided with conductors 18, 20 forming a half-wave dipole at the radiation frequency and coupled via a transformer 28 to a transistor audio-oscillator 44. The oscillator 44 effects a preliminary ionization of the tube 10 so that when the R.F. energy is coupled into the tube via the dipole the ionization is increased and shifts into the arc glow region which is characterized by a change in colour of the glow. To increase the forward pick-up of the dipole a reflector plate 29 may be provided.
GB38690/64A 1963-09-30 1964-09-22 Improvements in and relating to radiation detectors Expired GB1057425A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US31251363A 1963-09-30 1963-09-30

Publications (1)

Publication Number Publication Date
GB1057425A true GB1057425A (en) 1967-02-01

Family

ID=23211794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38690/64A Expired GB1057425A (en) 1963-09-30 1964-09-22 Improvements in and relating to radiation detectors

Country Status (2)

Country Link
US (1) US3423679A (en)
GB (1) GB1057425A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950996A1 (en) * 1979-12-18 1981-06-25 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen METHOD AND DEVICE FOR MEASURING THE INTENSITY OF ELECTROMAGNETIC RADIATION IN THE MICROWAVE AND INFRARED SPECTRAL RANGE
DE3115301A1 (en) * 1981-04-15 1982-11-04 Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Dielectric radiator
GB2124392A (en) * 1982-07-23 1984-02-15 English Electric Valve Co Ltd Apparatus for monitoring power
EP0248501A1 (en) * 1986-06-06 1987-12-09 Koninklijke KPN N.V. Detection system for detecting imperfections in a shielding against EM radiation
GB2277806A (en) * 1993-05-05 1994-11-09 Andrew Thomas Fox Improvements in and relating to apparatus for detecting the prescence of microwaves

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3919638A (en) * 1973-08-10 1975-11-11 Gen Electric Microwave detection instrument
FR2371691A1 (en) * 1976-11-19 1978-06-16 Anvar DEVICE FOR DETECTIONING OR MEASURING ELECTROMAGNETIC RADIATION AND PROCESS FOR IMPLEMENTATION
US4301406A (en) * 1979-04-23 1981-11-17 Walter Shriner Microwave warning device
US5430604A (en) * 1993-09-17 1995-07-04 Wong; Sam Q. Hand-held electrostatic discharge generator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123242A (en) * 1935-12-20 1938-07-12 Telefunken Gmbh Ultrashort wave receiver
US2395850A (en) * 1943-09-18 1946-03-05 Government Of The United Sates Means for indicating the presence of radio frequency fields
US2479964A (en) * 1947-09-11 1949-08-23 Gen Electric Glow-discharge lamp tuning indicator
US2788490A (en) * 1952-11-26 1957-04-09 Philips Corp Output power measurement of a pulsed magnetron oscillator
NL191136A (en) * 1953-10-01

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950996A1 (en) * 1979-12-18 1981-06-25 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen METHOD AND DEVICE FOR MEASURING THE INTENSITY OF ELECTROMAGNETIC RADIATION IN THE MICROWAVE AND INFRARED SPECTRAL RANGE
DE3115301A1 (en) * 1981-04-15 1982-11-04 Georg Dipl.-Ing. Dr.-Ing. 8152 Feldkirchen-Westerham Spinner Dielectric radiator
GB2124392A (en) * 1982-07-23 1984-02-15 English Electric Valve Co Ltd Apparatus for monitoring power
EP0248501A1 (en) * 1986-06-06 1987-12-09 Koninklijke KPN N.V. Detection system for detecting imperfections in a shielding against EM radiation
GB2277806A (en) * 1993-05-05 1994-11-09 Andrew Thomas Fox Improvements in and relating to apparatus for detecting the prescence of microwaves
GB2277806B (en) * 1993-05-05 1996-10-09 Andrew Thomas Fox Improvements in and relating to apparatus for monitoring microwaves within microwave ovens

Also Published As

Publication number Publication date
US3423679A (en) 1969-01-21

Similar Documents

Publication Publication Date Title
GB1057425A (en) Improvements in and relating to radiation detectors
GB1289455A (en)
GB1108636A (en) High tension spark ignition apparatus for burner installations
JPS5415542A (en) High frequency wave heating device
Large The application of a waveguide feed to a short backfire antenna
JPS5254900A (en) Ion source for microwave
JPS5364840A (en) Microwave heating apparatus
ES360710A1 (en) High-frequency control circuit
JPS5254479A (en) Electron cooling type radiant ray detecting device
JPS526062A (en) Protection device for high frequency electric power amplifier
JPS53124743A (en) High frequency heater
JPS5271124A (en) Protection device of television receiver
PODSTRIGACH et al. Dependence of proton flux intensity on the shape of radio burst frequency spectra
CA742479A (en) Apparatus for generating vapor from low heat content gas
JPS51151594A (en) Protective circuit for flame detection circuit
DOLGOPOLOV et al. Absorption of the energy of an electromagnetic field by a nonuniform plasma under conditions of ionic gyroresonance(Electromagnetic wave absorption in nonuniform plasma cylinder in presence of forced oscillations)
JPS5489196A (en) Ion source device
JPS5242671A (en) Discharge lamp lighting device
IL28648A (en) Delayed action power supply apparatus,more particularly used for circuit breaker supply
JPS5279344A (en) High frequency heating device
JPS51134948A (en) High-frequency heating device
JPS5380839A (en) Electric source device for microwave oven
FR2071176A5 (en) Plasma apparatus
JPS529365A (en) Magnetron
GB896356A (en) An ultra-violet irradiation apparatus