GB1103787A - Transit flask for radioactive objects - Google Patents

Transit flask for radioactive objects

Info

Publication number
GB1103787A
GB1103787A GB1986266A GB1986266A GB1103787A GB 1103787 A GB1103787 A GB 1103787A GB 1986266 A GB1986266 A GB 1986266A GB 1986266 A GB1986266 A GB 1986266A GB 1103787 A GB1103787 A GB 1103787A
Authority
GB
United Kingdom
Prior art keywords
plug
tube
hot cell
cradle
aperture
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
GB1986266A
Inventor
Michel Brisac
Guy Lefort
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 GB1103787A publication Critical patent/GB1103787A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/005—Containers for solid radioactive wastes, e.g. for ultimate disposal
    • G21F5/008—Containers for fuel elements
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
    • 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
    • G21F5/00—Transportable or portable shielded containers
    • G21F5/06—Details of, or accessories to, the containers
    • G21F5/12—Closures for containers; Sealing arrangements

Abstract

1,103,787. Shielded containers for radioactive material. COMMISSARIAT A L'ENERGIE ATOMIQUE. 5 May, 1966 [21 May, 1965], No. 19862/66. Heading B4Q. A flask for transporting an irradiated fuel element to a hot cell and having means whereby it may be sealed to an aperture in a vertical wall of the cell (Fig. 4, not shown) to permit transfer of the element through the aperture, comprises a lead-filled casing 10 provided with a removable dome 14. The flask is used horizontally with a shielding plug 30 facing upwards so that when the dome 14 is removed a frusto-conical nose 12 may be engaged with a similar-shaped surface surrounding the aperture in the hot cell wall. A stepped passageway 18 on the axis of the casing 10 normally sealed at the rear end by a plug 26 receives a tube 34 containing a cradle (36) (Fig. 2, not shown), the cradle carrying the fuel element. The front end of the passageway 18 is sealed by a screwthreaded plug 22 and by a plug 24, the latter plug being removed at the same time as the dome 14. The front ends of the tube 34 and cradle (36) are normally locked together by interengaging lugs (44, 48) and may be disengaged by relative rotation through 30 degrees. In use, after mating of the nose 12 with the hot cell aperture, the plug 26 is removed and a push-rod (52) (Fig. 3, not shown) is coupled to the rear end of the tube 34. The plug 30 is removed and the plug 22 raised by a screwing motion whereupon the tube 34 is advanced by the rod (52) until the front end of the cradle (36) constituted by a stopper (38) engages a stopper (38<SP>1</SP>) locked by interengaging lugs (44<SP>1</SP>, 48<SP>1</SP>) in an opening formed in a collar (68) defining an entry in a liner (66) of the hot cell (Fig. 4, not shown). The tube 34 is rotated through 30 degrees by the rod (52) to lock together the stoppers (38, 38<SP>1</SP>) by interengaging lugs (74, 74<SP>1</SP>) and also to lock the tube 34 with the collar (68) by interengaging lugs (42, 42<SP>1</SP>). A manipulator (not shown) in the hot cell now rotates the stoppers (38, 38<SP>1</SP>) as a unit to disengage the lugs (48, 48<SP>1</SP>) and permit withdrawal of the stoppers together with the cradle (36) into the hot cell.
GB1986266A 1965-05-21 1966-05-05 Transit flask for radioactive objects Expired GB1103787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR17957A FR1444253A (en) 1965-05-21 1965-05-21 Radioactive object transport castle

Publications (1)

Publication Number Publication Date
GB1103787A true GB1103787A (en) 1968-02-21

Family

ID=8579459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1986266A Expired GB1103787A (en) 1965-05-21 1966-05-05 Transit flask for radioactive objects

Country Status (8)

Country Link
BE (1) BE680101A (en)
CH (1) CH458558A (en)
DE (1) DE1539775B2 (en)
ES (1) ES326954A1 (en)
FR (1) FR1444253A (en)
GB (1) GB1103787A (en)
LU (1) LU51146A1 (en)
NL (1) NL6606780A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP1978530B1 (en) * 2007-04-02 2011-01-26 Evonik Energy Services GmbH Container system for receiving radioactive waste

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2116900A (en) * 1982-02-18 1983-10-05 Nat Nuclear Corp Ltd Dry storage of irradiated nuclear fuel
EP1978530B1 (en) * 2007-04-02 2011-01-26 Evonik Energy Services GmbH Container system for receiving radioactive waste

Also Published As

Publication number Publication date
DE1539775B2 (en) 1971-06-09
DE1539775A1 (en) 1970-12-03
NL6606780A (en) 1966-11-22
FR1444253A (en) 1966-07-01
ES326954A1 (en) 1969-08-16
BE680101A (en) 1966-10-03
LU51146A1 (en) 1966-07-18
CH458558A (en) 1968-06-30

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