US3644737A - Demountable cells for shielding radioactive elements - Google Patents

Demountable cells for shielding radioactive elements Download PDF

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Publication number
US3644737A
US3644737A US787323A US3644737DA US3644737A US 3644737 A US3644737 A US 3644737A US 787323 A US787323 A US 787323A US 3644737D A US3644737D A US 3644737DA US 3644737 A US3644737 A US 3644737A
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elements
cell
rectangular
accordance
square
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US787323A
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English (en)
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Letto Fedi
Charles Glachet
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    • 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
    • G21F7/04—Shielded glove-boxes
    • G21F7/045—Transportable glove-boxes

Definitions

  • ABSTRACT A shielded cell for the safe manipulation of objects or materials which present hazards arising from radioactive radiation or other causes and which are to be isolated from the environment.
  • the construction of the cell entails the use of a small number of different types of standard reversible elements of maximum size which are designed for reuse and are provided in particular with penetrations located in accordance with operating requirements.
  • the elements to be interassembled by known means for ensuring compliance with shielding requirements are essentially endowed with shapes related to a square unit of which one side is a suitable multiple of the common thickness of said elements, to rectangular elements each having a length corresponding to one side of said square unit of a width corresponding to simple submultiples thereof, a comerpost provided with means for assembly and fastening at right angles, and rectangular elements adapted to carry overlap slabs for covering said cells.
  • the present invention relates to shielded cells for the safe manipulation of objects and especially objects which present hazards arising from radioactive radiation or other causes or any objects or materials which are to be isolated from the environment.
  • the invention is more especially concerned with all demountable cells for handling radioactive products.
  • cells of this type must have wall openings for such components as handling tongs and manipulators, viewing openings for windows, ports and periscopes, transfer openings for doors, lock chambers, transport flasks and conveyors, and for ancillary systems such as ducts, electric supply cables, ventilation.
  • the primary objective of the present invention is to make said cells such that they conform to the various practical shapes and volumes of the cells, the thicknesses of the shielding material and the selected opening locations with a structural design which makes it possible without entailing any special study to conform to the essential requirements of relative arrangements of openings on the one. hand with respect to each other, e.g., windows in relation to manipulators, ports in relation to handling tongs and the like and, on the other hand, with respect to the working areas in the cells.
  • the invention consists in employing for the construction of said cells a minimum number of different types of standard reversible elements of maximum size which are designed for reuse and are provided in particular with openings exactly in accordance with operating requirements, said elements being interassembled by any known means for ensuring compliance with shielding requirements. It is a main object of the invention to provide said elements with shapes related to a square unit one side of which is a suitable multiple of the common thickness of said elements, to rectangular elements each having a length corresponding to the length of one side of said square unit and a width corresponding to a simple submultiple thereof, a cornerpost provided with means for assembly and fastening of the elements at right angles thereto, and rectangular elements adapted to carry overlap slabs for covering said cells.
  • the invention consists in certain additional arrangements which are preferably employed at the same time and are to be considered either separately or in any technically feasible combinations, in particular:
  • the widths of said rectangular elements correspond to onehalf.
  • one-third, one-sixth and one-twelfth and the thicknesses of said elements correspond to one-twelfth or one twenty-fourth of the length of the side of said square unit,
  • the widths of said rectangular elements correspond to onehalf, one-fifth and one-tenth and the thicknesses of said elements correspond to one-tenth or one-twentieth of the length ofthe side ofsaid square unit,
  • said square unit includes a window
  • said square unit includes a window and two manipulator penetrations
  • said rectangular element is provided with a port
  • said rectangular element is provided with one opening for a door and/or transport flask
  • said rectangular element is provided with two openings for universal-joint handling tongs,
  • said assembly means for said elements includes edges in which are formed complementary stepped recesses which may be reversible,
  • said stepped recesses have a herringbone profile
  • said fastening means are plates provided with at least four holes spaced in two perpendicular directions at distances which are simple submultiples of the length of the side of said square unit, said elements being also provided with blind end bores which are aligned both internally and externally at a distance from the edges thereof which is equal to one-half the submultiple chosen along one of the directions of said plates and located at a distance from each other which corresponds to the submultiple chosen for the other direction, said blind end bores being normally sealed in the usual manner,
  • said plates are of several different types, the number of holes formed in these different types being in simple ratios.
  • FIG. 1 is a view in isometric perspective showing a first type of cell as constructed in accordance with the invention
  • FIG. 2 is a view in isometric perspective showing a second type of cell as constructed in accordance with the invention
  • FlG. 3 is a horizontal sectional view of a third type of cell as constructed in accordance with the invention.
  • FIG. 1 A cell having two workstations constructed with standard elements in' accordance with the invention is illustrated in FIG. 1.
  • This figure shows most of the standard elements which are necessary for the construction of any cell in which the widths of the rectangular components correspond to one-half, one-third, one-sixth and one-twelfth and the thicknesses of said components correspond to one-twelfth of the length of the side of the basic square unit.
  • the elements are made of suitable material depending upon the type of shielding to be provided and may be made oflead, steel, plastic materials and the like and combinations thereof as would be obvious to one skilled in the art.
  • a square unit or element the dimensions of which must be suitably chosen and which can be provided (at 1) with three openings, namely two openings such as 3 for manipulators such as Sand one opening such as 7 for a window such as 9, or alternatively which can have (at 11) similar dimensions but no openings.
  • a rectangular element which (as shown at 13) can be equal in length to the side of the square element and equal in width to one-half the length of said side, said rectangular element being provided with one opening for a port 15, or alternatively which (as shown at 17) has the same dimensions but no openings.
  • a rectangular element which (as shown at 19) can be equal in length to the side of the square element and equal in width to one-third of the length of said side, said rectangular element being provided with two openings for handling tongs such as 21 having universal joints such as 23, or alternatively which (as shown at 25) has the same dimensions but no openings.
  • a rectangular element such as 27 having a length which is equal to or double the length of the side of the square element and having a width corresponding to onesixth of the length of said side.
  • a cornerpost such as 29 which is equal in length to or double the length of the side of the square element and having a width in both perpendicular directions which is equal to onetwelfth of the length of said side.
  • the mode of assembly which is illustrated in FIG, 1 is a particular example of only one such combination. All the elements are provided with holes which are spaced at a distance corresponding to one-sixth of the length of the side of the square element and aligned along straight lines at a distance from their two vertical edges of one twenty-fourth of the length of the side of the square element.
  • Plates such as the plate 31 each provided with four holes located vertically at a distance corresponding to one-sixth and horizontally at a distance corresponding to one-twelfth of the length of the side of the square element.
  • Plates such as the plate 33 each provided with eight holes and double the size of the plates 31, the holes being located at the same distances from each other.
  • the complete cell unit is supported on a base plate 37 and is surmounted by a roof which is also constructed from standar elements in the following manner:
  • L-section members such as the member 39 are screwed internally into the holes of the top cell elements and rectangular elements such as the element 41 rest at uniform intervals on the L-section members 39.
  • Members such as 43 which have the same thickness as the cornerposts 29 are placed around the entire periphery of the cell on the top of the cell walls and are adapted to cooperate with the rectangular elements such as 41 which support overlap slabs such as the slab 45.
  • the assembly arrangement which is chosen in all the figures in order to maintain requisite standards of protection against radiation is the so-called herringbone" arrangement which is shown, for example, at 47 in FIG. 1.
  • This arrangement has the advantage of being compatible with many existing cell elements but any other construction which complies with radiation shielding requirements is within the scope of this invention.
  • FIG. 2 illustrates a cell of smaller size which is mounted on a square baseplate 49, said baseplate being in turn placed on a table 51.
  • the rectangular element 13 with its port 15, the rectangular element 19 with its handling tongs 21 and universal joints 23, the rectangular element 27, the cornerpost 29, the elements 43 and the slabs 45, the other covering elements not being seen in this figure.
  • FIG. 3 is a horizontal cross section of another embodiment providing double protection. It has proved sufficient for this purpose to superpose or tojuxtapose the standard elements already defined and the construction of a cell of this type is made possible by virtue of the dimensions which are chosen for the elements under consideration. The fact that these elements are reversible has made it possible, for example, either to superpose or to juxtapose two square elements such as the element 1 (components 1a and lb), two square elements such as 11 (components 11a and 11b), two rectangular elements such as 27 (components 27a and 27b) which could also be rectangular elements such as 53 (shown in FIG. 3) and cornerposts such as the post 29 (components 29a and 29b).
  • the element 1 components 1a and lb
  • 11 components 11a and 11b
  • 27 components 27a and 27b
  • cornerposts such as the post 29 (components 29a and 29b).
  • this arrangement calls for the use of rectangular elements such as either the element 53 which have the same width as the cornerposts 29 or the members 43 but are provided with stepped or herringbone" recesses on two opposite faces. Said elements 53 can also coincide with the cornerposts 29 which are in that case provided with additional herringbone faces.
  • a shielded cell for objects to be isolated from the environment having connected walls comprising a minimum number of standard reversible reusable elements, opening in said elements for operating requirements, means for connecting said elements for shielding, the dimensions of said elements being based on the dimensions ofa square unit, one side of said unit being a multiple of the common thickness of said elements, said elements including square elements having dimensions equal to the square unit, rectangular elements each having a length corresponding to the length to one side of said square unit and a width corresponding toa simple submultiple thereof, said elements including a cornerpost and means for fastening said square elements and said rectangular elements to said cornerpost, said fastening means including plates having at least four holes spaced in two perpendicular directions at distances which are simple submultiples of the length of the side of said square unit, said elements having blind end bores aligned internally and externally at a distance from the edges thereof equal to one-half the submultiple along one of the directions of said plates and at a distance from each other which corresponds to the submultiple for
  • a cell in accordance with claim 1 the widths of said rectangular elements corresponding to one-half, onethird, one-sixth, and one-twelfth and the thicknesses of said rectangular elements corresponding to one-twelfth and one twentyfourth of the side of said square unit.
  • a cell in accordance with claim 1 the widths of said rectangular elements corresponding to one-half, one-fifth and one-tenth and the thicknesses of said rectangular elements corresponding to one-tenth and one-twentieth of the length of the side of said square unit.
  • a cell in accordance with claim 1 said square element having a window and two manipulator openings.
  • said rectangular element includes a port.
  • said rectangular element includes a door for a transport flask.
  • said means for connecting said elements for shielding including complementary stepped edges on said elements.
  • said stepped edges have a herringbone profile.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Toys (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Assembled Shelves (AREA)
US787323A 1967-12-28 1968-12-27 Demountable cells for shielding radioactive elements Expired - Lifetime US3644737A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR134171 1967-12-28

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US3644737A true US3644737A (en) 1972-02-22

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US787323A Expired - Lifetime US3644737A (en) 1967-12-28 1968-12-27 Demountable cells for shielding radioactive elements

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US (1) US3644737A (fr)
JP (1) JPS5011560B1 (fr)
BE (1) BE726073A (fr)
CH (1) CH505445A (fr)
DE (2) DE1817218A1 (fr)
ES (1) ES361952A1 (fr)
FR (1) FR1566204A (fr)
GB (1) GB1223630A (fr)
LU (1) LU57661A1 (fr)
NL (1) NL6818797A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010095079A3 (fr) * 2009-02-20 2010-11-11 The South African Nuclear Energy Corporation Limited Manipulation de matériaux radioactifs

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2074780B1 (fr) * 1970-01-28 1974-06-14 Commissariat Energie Atomique
JPS52171965U (fr) * 1976-06-18 1977-12-27
DE10321434A1 (de) * 2003-05-12 2004-12-30 Ge Inspection Technologies Ahrensburg Gmbh & Co. Kg Gehäuse für Röntgenstrahlenkontrolleinrichtungen
DE202015106871U1 (de) 2015-12-16 2017-03-17 Kuka Industries Gmbh Bearbeitungseinrichtung
RU207670U1 (ru) * 2021-05-17 2021-11-10 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" Исследовательская защитная камера для выполнения работ с длинномерными облученными изделиями

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010095079A3 (fr) * 2009-02-20 2010-11-11 The South African Nuclear Energy Corporation Limited Manipulation de matériaux radioactifs
US20110301400A1 (en) * 2009-02-20 2011-12-08 Johannes Samuel Frederik Botha Handling Of Radioactive Materials
CN102326209A (zh) * 2009-02-20 2012-01-18 南非核能源有限公司 放射性材料的处理
US8754387B2 (en) * 2009-02-20 2014-06-17 The South African Nuclear Energy Corporation Limited Handling of radioactive materials

Also Published As

Publication number Publication date
JPS5011560B1 (fr) 1975-05-02
ES361952A1 (es) 1972-01-01
GB1223630A (en) 1971-03-03
LU57661A1 (fr) 1969-04-15
DE1817218B2 (fr) 1971-01-07
BE726073A (fr) 1969-05-29
CH505445A (fr) 1971-03-31
NL6818797A (fr) 1969-07-01
DE1817218A1 (de) 1969-08-14
DE6813348U (de) 1972-09-21
FR1566204A (fr) 1969-05-09

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