EP0151058A1 - Vorrichtung zum Einbringen einer radioaktiven Quelle in ein zylindrisches Gehäuse sowie Verfahren zum Transportieren dieser Quelle in einen Transportbehälter - Google Patents

Vorrichtung zum Einbringen einer radioaktiven Quelle in ein zylindrisches Gehäuse sowie Verfahren zum Transportieren dieser Quelle in einen Transportbehälter Download PDF

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Publication number
EP0151058A1
EP0151058A1 EP85400067A EP85400067A EP0151058A1 EP 0151058 A1 EP0151058 A1 EP 0151058A1 EP 85400067 A EP85400067 A EP 85400067A EP 85400067 A EP85400067 A EP 85400067A EP 0151058 A1 EP0151058 A1 EP 0151058A1
Authority
EP
European Patent Office
Prior art keywords
source
cylindrical housing
source holder
barrel
groove
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.)
Granted
Application number
EP85400067A
Other languages
English (en)
French (fr)
Other versions
EP0151058B1 (de
Inventor
Christian Bezer
André Olombel
Georges Viel
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.)
Oris Industrie SA
Original Assignee
Oris Industrie SA
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 Oris Industrie SA, Commissariat a lEnergie Atomique CEA filed Critical Oris Industrie SA
Priority to AT85400067T priority Critical patent/ATE38916T1/de
Publication of EP0151058A1 publication Critical patent/EP0151058A1/de
Application granted granted Critical
Publication of EP0151058B1 publication Critical patent/EP0151058B1/de
Expired legal-status Critical Current

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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
    • G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers

Definitions

  • the present invention relates to a device for the establishment of a radioactive source which aims to simplify the operations of placing and removing a radioactive source in irradiation apparatus.
  • the device, object of the invention was designed to be used in the head “of an apparatus" of cobaltherapy of the "ALCYON" type.
  • the present invention also relates to a device which allows troubleshooting in situ of cobaltherapy heads of the same type.
  • irradiation apparatuses using radioactive sources include the need for the placement of these sources and for their change when the radioactive decay has become too great, a few years for CO for example.
  • the extremely high activity which reigns in contact with the source and in its vicinity does not simplify this type of operation; in fact, these must be carried out either in shielded cells with remote clamps, or with appropriate transfer casks, shielded with lead.
  • Such devices comprise, in a known manner, a radioactive source, conforming to an approved model, which appears externally in the form of a cylinder which it is prohibited to modify before filling with the active material, in order to add devices for anchor or screw thread.
  • This type of source is introduced into a cylindrical housing in which it is then fixed by various means.
  • the source is mounted on a sliding drawer in a cobaltherapy installation and fixed in its housing
  • the source is mounted on a barrel in an "ALCYON" type irradiator and fixed in its housing by a clip clamp.
  • the present invention provides a device for the establishment of a radioactive source, which overcomes this type of drawback by providing in particular, a simplified installation (or extraction). Indeed, the source is introduced into a source holder constituted so as to block the latter in a very simple manner, without however hindering the exit of the radiation beam; this source holder is then itself introduced into an appropriate housing of the irradiator.
  • This device of the type comprising a radioactive source blocked inside a cylindrical source holder, itself mounted in a suitable cylindrical housing, is characterized in that said cylindrical housing surmounts a cylindrical housing of greater diameter in the walls which are partially implanted at least one rod and at least one lug, and in that the source holder comprises in its lower part a chamfered collar in its upper part, comprising an annular groove intended to receive the non-implanted part of the rod, and at least one groove inclined with respect to the axis of revolution of the source holder, of width at least equal to the diameter of said lug, opening onto the upper face of said flange; said groove ensuring the guide of the lug is such that the position of the lug in the bottom of the groove corresponds to that of the rod in the annular groove.
  • the device for the installation of a radioactive source in a cylindrical housing, is characterized in that the source holder comprises at its upper end foldable metal tabs, which ensure blocking the source in said source holder.
  • the device for the establishment of a radioactive source in a cylindrical housing, is characterized in that the source holder comprises at its base a groove intended to receive the ends of the fingers of a specially adapted tool, in particular in the form of two-finger pliers, by means of which the source holder is introduced into the appropriate cylindrical housing.
  • the device for the establishment of a radioactive source, in a cylindrical housing is characterized in that it comprises means for allowing the transfer of the source holder, containing the radioactive source , from its cylindrical housing towards a transfer castle, comprising in particular a storage corridor.
  • transfer castle is meant, throughout the rest of this text, an armored device used for temporary housing of the source during any intervention on the head of the irradiator requiring the removal of this source.
  • the source 1 is mounted in a housing 45, on a barrel 15, in the head 30 of an irradiator of the "ALCYON" type; it is fixed in said housing by a clip clamp 46.
  • the invention overcomes this type of drawback, in particular by eliminating any fixing means of the clip-on or screw type.
  • 1 designates the radioactive source which, according to an approved model, is externally in the form of a cylinder which it is prohibited to modify before filling with the active material, to add devices anchor or screw threads, etc ...
  • This radioactive source 1 is introduced into a metallic cylindrical envelope, the source holder 2, and blocked in said source holder 2, by means of the folding down of three metal tabs 10, situated in the upper part thereof; the source holder 2 is itself mounted on a barrel 15, of the type of those contained in an "ALCYON" irradiator head, inside a suitable cylindrical housing 3, which surmounts a second cylindrical housing of diameter higher 4.
  • Said housing 4 has partially implanted in its walls two rods 5, in piano wire, diametrically opposite, and two lugs 6, also diametrically opposite, arranged perpendicular to the rods 5.
  • the lower part of the source holder 2 comprises a bevelled collar 7 in its upper part 16, the cylindrical surface of revolution of which comprises an annular groove 8, in the form of a v, produced by two symmetrical chamfers (17a, b); it also includes two diametrically opposite grooves 9 opening out above said flange 7. These grooves 9 are inclined relative to the axis of revolution of the source holder 2 and their width equal at least the diameter of a lug 6.
  • the source holder 2 has at its base a circular groove 13, on which the ends of the two articulated "fingers" 12 controlled by the operating rod 11a of a tool in the form of pliers 11.
  • the positioning of the source holder 2 in its housing 3 is identical to that of the base of an electric bayonet bulb in the socket corresponding to this except that the bayonets (pins 6) are located on the housing 4 of the door -source 2 and the grooves 9 on the source holder 2.
  • the immobilization of the source holder 2 using the two rods 5 housed in the annular groove 8 allows permanent blocking in the housing 4 of the barrel 15.
  • a design of this type has the advantage of simplifying the manufacture of the device for the installation of a radioactive source, in an appropriate housing, according to the invention.
  • the device for placing (or extracting) a radioactive source in a housing suitable according to the invention allows, for example, in a simple manner, the transfer from the source 1 to a transfer castle 20.
  • FIGs. 5 and 6 show, seen in plan and in elevation section, the transfer castle 20 in its position associated with a radiator 21, of the Alcyon type, of which the body 30 and the barrel 15 containing the housing 3 of the source holder 2 are seen.
  • This transfer castle 20 itself comprises an external shielding zone 31 and a central barrel 32 provided with a transverse passage 33, which can come into alignment with the passages 34 of the shield 31 and 35 of the head of the irradiator 21. .
  • the tool in the form of pliers 11 is housed in the corridor 33 and has a groove 36 positioned to come opposite the control rod 37 of the barrel 32 (Fig. 6) when the source holder 2 is housed in the same barrel 32.
  • a command 38 makes it possible to act through the shielding 31 on the tool 11 for translating and locking in rotation the source holder 2 in its housing 3.
  • transmission means 39 for this command 38 are housed in the corridor 34 and are connected at 40 with the end of the tool 11 opposite the irradiator 21.
  • FIG. 5a The detail 'of this connection is visible in FIG. 5a where we see a blocking ball 41 held in its housing by an external jacket 42 which allows the joining 39 in translation and in rotation of the control 39 and of the tool 11.
  • the barrel 32 also comprises a radial cylindrical housing 43 able to come in rotation in alignment with the passage 34 and to receive the transmission rod 39 moved by the control 38 and intended to immobilize the barrel 32 in rotation.
  • Fig. 6 we see in particular the rod 37 for controlling the rotation of the barrel 32 which comprises a control head 44 which can be locked by a padlocking system 45 and a profiled end 46 to penetrate into the groove 36 of the tool 11 and immobilize the latter in translation.
  • This type of transfer has the advantage in the event of mechanical failure of the irradiator to allow difficult repairs, even impossible in the presence of the source, which until now required the return of the "ALCYON" head to the center. test, in an armored cell before any unloading.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiation-Therapy Devices (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Measurement Of Radiation (AREA)
EP85400067A 1984-01-20 1985-01-15 Vorrichtung zum Einbringen einer radioaktiven Quelle in ein zylindrisches Gehäuse sowie Verfahren zum Transportieren dieser Quelle in einen Transportbehälter Expired EP0151058B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85400067T ATE38916T1 (de) 1984-01-20 1985-01-15 Vorrichtung zum einbringen einer radioaktiven quelle in ein zylindrisches gehaeuse sowie verfahren zum transportieren dieser quelle in einen transportbehaelter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8400880A FR2558637B1 (fr) 1984-01-20 1984-01-20 Dispositif pour la mise en place d'une source radioactive dans un logement cylindrique et procede de transfert de cette source dans un chateau de transfert
FR8400880 1984-01-20

Publications (2)

Publication Number Publication Date
EP0151058A1 true EP0151058A1 (de) 1985-08-07
EP0151058B1 EP0151058B1 (de) 1988-11-23

Family

ID=9300317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85400067A Expired EP0151058B1 (de) 1984-01-20 1985-01-15 Vorrichtung zum Einbringen einer radioaktiven Quelle in ein zylindrisches Gehäuse sowie Verfahren zum Transportieren dieser Quelle in einen Transportbehälter

Country Status (8)

Country Link
US (1) US4634873A (de)
EP (1) EP0151058B1 (de)
JP (1) JPH0634089B2 (de)
AR (1) AR242460A1 (de)
AT (1) ATE38916T1 (de)
CA (1) CA1226978A (de)
DE (1) DE3566471D1 (de)
FR (1) FR2558637B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4893022A (en) * 1987-10-19 1990-01-09 Westinghouse Electric Corp. Closure for casks containing radioactive materials
JPH02296505A (ja) * 1989-05-09 1990-12-07 Tokyu Car Corp 走行装置ユニツト
US6366633B1 (en) * 1998-08-03 2002-04-02 Eurotope Entwicklungsgesellschaft für Isotopentechnologien mbh Storage and dispatch container for radioactive miniature radiation sources
US7425195B2 (en) 2004-08-13 2008-09-16 Core Oncology, Inc. Radiation shielding device
DE602006006329D1 (de) * 2005-08-12 2009-05-28 Mallinckrodt Inc Strahlungsabschirmungsbaugruppe mit container-haltevorrichtung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675487A (en) * 1947-07-10 1954-04-13 Paul O Schallert Exposure capsule handling device
US2999164A (en) * 1959-02-11 1961-09-05 Nuclear Chicago Corp Storage shield for radioactivity device
GB908134A (en) * 1960-08-03 1962-10-17 Mitchell Engineering Ltd Improvements in or relating to apparatus for use in handling radio-active materials
FR1449656A (fr) * 1965-04-21 1966-05-06 Saint Gobain Techn Nouvelles Perfectionnements aux irradiateurs
US3256441A (en) * 1962-11-26 1966-06-14 Abbott Lab Container system for radioactive material
DE2644473A1 (de) * 1975-10-03 1977-04-14 Commissariat Energie Atomique Behaelter fuer radioaktive objekte
FR2331127A1 (fr) * 1975-11-07 1977-06-03 Cgr Mev Dispositif d'irradiation utilisant des elements radioactifs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682352A (en) * 1947-05-09 1954-06-29 Atomic Energy Commission Shipping container for radioactive material
FR2443122A1 (fr) * 1978-11-14 1980-06-27 Commissariat Energie Atomique Dispositif de stockage d'une source de photons et d'irradiation d'un corps par le rayonnement de la source
US4406947A (en) * 1981-04-17 1983-09-27 The United States Of America As Represented By The Secretary Of The Navy Calibrating device for ionizing radiation dosimeters

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2675487A (en) * 1947-07-10 1954-04-13 Paul O Schallert Exposure capsule handling device
US2999164A (en) * 1959-02-11 1961-09-05 Nuclear Chicago Corp Storage shield for radioactivity device
GB908134A (en) * 1960-08-03 1962-10-17 Mitchell Engineering Ltd Improvements in or relating to apparatus for use in handling radio-active materials
US3256441A (en) * 1962-11-26 1966-06-14 Abbott Lab Container system for radioactive material
FR1449656A (fr) * 1965-04-21 1966-05-06 Saint Gobain Techn Nouvelles Perfectionnements aux irradiateurs
DE2644473A1 (de) * 1975-10-03 1977-04-14 Commissariat Energie Atomique Behaelter fuer radioaktive objekte
FR2331127A1 (fr) * 1975-11-07 1977-06-03 Cgr Mev Dispositif d'irradiation utilisant des elements radioactifs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ISOTOPES AND RADIATION TECHNOLOGY, vol. 9, no. 1, 1971, pages 23-30, Oak Ridge, US; K.V. GODFREY et al.: "Neutron activation and on-stream analysis in the mineral industries using SHERLOCK III" *

Also Published As

Publication number Publication date
DE3566471D1 (en) 1988-12-29
CA1226978A (en) 1987-09-15
EP0151058B1 (de) 1988-11-23
AR242460A1 (es) 1993-03-31
FR2558637A1 (fr) 1985-07-26
JPS60163000A (ja) 1985-08-24
US4634873A (en) 1987-01-06
FR2558637B1 (fr) 1986-05-02
JPH0634089B2 (ja) 1994-05-02
ATE38916T1 (de) 1988-12-15

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