FI864055A0 - Foerfarande och anordning foer maetandet av radon-halten i luften. - Google Patents

Foerfarande och anordning foer maetandet av radon-halten i luften.

Info

Publication number
FI864055A0
FI864055A0 FI864055A FI864055A FI864055A0 FI 864055 A0 FI864055 A0 FI 864055A0 FI 864055 A FI864055 A FI 864055A FI 864055 A FI864055 A FI 864055A FI 864055 A0 FI864055 A0 FI 864055A0
Authority
FI
Finland
Prior art keywords
luften
halten
radon
origination
maintenance
Prior art date
Application number
FI864055A
Other languages
English (en)
Other versions
FI864055A (fi
Inventor
Thor Gunnar Graeff
Veikko Ilmasti
Original Assignee
Ilmasti Oy
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8523274&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI864055(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Ilmasti Oy filed Critical Ilmasti Oy
Priority to FI864055A priority Critical patent/FI864055A/fi
Publication of FI864055A0 publication Critical patent/FI864055A0/fi
Priority to US07/066,545 priority patent/US4868386A/en
Priority to JP62251730A priority patent/JPS63148187A/ja
Publication of FI864055A publication Critical patent/FI864055A/fi
Priority to US07/388,944 priority patent/US4977318A/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/17—Circuit arrangements not adapted to a particular type of detector
    • G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S250/00—Radiant energy
    • Y10S250/02—Radon detection

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Measurement Of Radiation (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
FI864055A 1986-10-07 1986-10-07 Foerfarande och anordning foer maetandet av radon-halten i luften. FI864055A (fi)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FI864055A FI864055A (fi) 1986-10-07 1986-10-07 Foerfarande och anordning foer maetandet av radon-halten i luften.
US07/066,545 US4868386A (en) 1986-10-07 1987-06-26 Method and apparatus for measuring radon content in the air
JP62251730A JPS63148187A (ja) 1986-10-07 1987-10-07 空気中のラドン含有量を測定する方法と装置
US07/388,944 US4977318A (en) 1986-10-07 1989-08-03 Procedure and means for measuring radon content in the air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI864055A FI864055A (fi) 1986-10-07 1986-10-07 Foerfarande och anordning foer maetandet av radon-halten i luften.

Publications (2)

Publication Number Publication Date
FI864055A0 true FI864055A0 (fi) 1986-10-07
FI864055A FI864055A (fi) 1988-04-08

Family

ID=8523274

Family Applications (1)

Application Number Title Priority Date Filing Date
FI864055A FI864055A (fi) 1986-10-07 1986-10-07 Foerfarande och anordning foer maetandet av radon-halten i luften.

Country Status (3)

Country Link
US (2) US4868386A (fi)
JP (1) JPS63148187A (fi)
FI (1) FI864055A (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0528537Y2 (fi) * 1988-05-10 1993-07-22
FR2634561A1 (fr) * 1988-07-25 1990-01-26 Nukem Gmbh Procede et dispositif de mesure en continu de l'activite alpha portee par un gaz
FR2647910B1 (fr) * 1989-05-30 1991-08-30 Commissariat Energie Atomique Procede et dispositif de mesure de la concentration des differents isotopes du radon dans une atmosphere gazeuse
US5194737A (en) * 1991-10-08 1993-03-16 University Of California Patent, Trademark & Copyright Office Single and double grid long-range alpha detectors
US6018985A (en) * 1998-02-06 2000-02-01 Durridge Co. Method and apparatus for measuring unattached radon progeny
US20050132777A1 (en) * 2003-12-23 2005-06-23 Lane-Smith Derek R. Method of detecting and/or monitoring an increase in atmospheric radioactivity due to purposeful dispersion of radioactive material, such as in a terrorist attack
US8074487B2 (en) * 2009-03-05 2011-12-13 Durridge Company Inc. Method of calibrating an apparatus for measuring radon and/or its progeny in an air sample

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387181A (en) * 1963-11-05 1968-06-04 Deering Milliken Res Corp Apparatus for determining the differential ion count in an atmosphere and for controlling same
US4055762A (en) * 1976-03-25 1977-10-25 The United States Of America As Represented By The Secretary Of The Interior Radon daughter dosimeter
US4104523A (en) * 1976-10-06 1978-08-01 Martin Marietta Corporation Electronic alpha particle counter
US4262203A (en) * 1979-02-02 1981-04-14 Overhoff Mario W Alpha particle monitor
JPS56767A (en) * 1979-06-15 1981-01-07 Oki Electric Ind Co Ltd Exchange network using four wire type bidirectional branch line

Also Published As

Publication number Publication date
FI864055A (fi) 1988-04-08
JPS63148187A (ja) 1988-06-21
US4868386A (en) 1989-09-19
US4977318A (en) 1990-12-11

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: ILMASTI ELEKTRONIIKKA OY