GB881007A - Devices for protection against ionising radiation and contamination by harmful dustsin apparatus for observing the interior of sealed chambers - Google Patents

Devices for protection against ionising radiation and contamination by harmful dustsin apparatus for observing the interior of sealed chambers

Info

Publication number
GB881007A
GB881007A GB35176/58A GB3517658A GB881007A GB 881007 A GB881007 A GB 881007A GB 35176/58 A GB35176/58 A GB 35176/58A GB 3517658 A GB3517658 A GB 3517658A GB 881007 A GB881007 A GB 881007A
Authority
GB
United Kingdom
Prior art keywords
interior
opening
chamber
envelope
screen
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
GB35176/58A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB881007A publication Critical patent/GB881007A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/24—Instruments or systems for viewing the inside of hollow bodies, e.g. fibrescopes
    • G02B23/2476—Non-optical details, e.g. housings, mountings, supports
    • G02B23/2492—Arrangements for use in a hostile environment, e.g. a very hot, cold or radioactive environment
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F7/00—Shielded cells or rooms
    • G21F7/02—Observation devices permitting vision but shielding the observer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Instruments For Viewing The Inside Of Hollow Bodies (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

881,007. Viewing equipment for radioactive environment. COMMISSARIAT A L'ENERGIE ATOMIQUE. Nov. 3, 1958 [Nov. 5, 1957], No. 35176/58. Class 39(4) [Also in Group XX] Optical apparatus of use for observing the interior of sealed chambers containing radio active elements includes a cylindrical envelope 1 accommodated in an opening 2 in the chamber and is characterised on the one hand in that this envelope 1 is surrounded by bellows 47 made from a material preventing contamination of the environment by radio active dust and sealing connected at one end to a part of the observation apparatus 48 outside the chamber, said bellows 47 being expandable to cover that portion of the apparatus which was located in the interior of the chamber and the other end of the bellows being adapted to be closed by a sealing means 61 when the observation apparatus is withdrawn from the chamber, and is characterised on the other hand in that there are provided in the interior of the cylindrical envelope at least two cylindrical screens, for example 5, 6 and 7 of lead or similar material absorbing the radiation, which have the same cross-section as the envelope 1, each including a longitudinal opening parallel to the axis of the apparatus and said opening in each screen being arranged in alignment with a solid portion of each adjacent screen, a prism, for example 26a and 26b. being interposed between each pair of successive screens so as to direct the light rays issuing from the opening in one screen towards the opening in the following screen. The apparatus may be constructed as a periscope, in which case a rod 12 is used to control the movement of an observation prism (not shown) situated in front of the objective (not shown) of the periscope, and the images are erected by an erecting prism 35. The apparatus is provided with a mask 58 and lifting handles 59 and 52.
GB35176/58A 1957-11-05 1958-11-03 Devices for protection against ionising radiation and contamination by harmful dustsin apparatus for observing the interior of sealed chambers Expired GB881007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1097173X 1957-11-05

Publications (1)

Publication Number Publication Date
GB881007A true GB881007A (en) 1961-11-01

Family

ID=9618509

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35176/58A Expired GB881007A (en) 1957-11-05 1958-11-03 Devices for protection against ionising radiation and contamination by harmful dustsin apparatus for observing the interior of sealed chambers

Country Status (6)

Country Link
BE (1) BE572595A (en)
DE (1) DE1097173B (en)
FR (1) FR1196918A (en)
GB (1) GB881007A (en)
LU (1) LU36558A1 (en)
NL (2) NL113386C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144898A (en) * 1983-08-11 1985-03-13 Westinghouse Electric Corp Nuclear power plant
WO2023103476A1 (en) * 2021-12-09 2023-06-15 湖南大学 Omni-directional observation apparatus for interior of hot cell

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2594970A (en) * 1946-12-31 1952-04-29 Atomic Energy Commission Viewing device for radioactive materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2144898A (en) * 1983-08-11 1985-03-13 Westinghouse Electric Corp Nuclear power plant
WO2023103476A1 (en) * 2021-12-09 2023-06-15 湖南大学 Omni-directional observation apparatus for interior of hot cell

Also Published As

Publication number Publication date
DE1097173B (en) 1961-01-12
NL113386C (en)
LU36558A1 (en)
BE572595A (en)
NL232941A (en)
FR1196918A (en) 1959-11-26

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