JP2011247856A - X-ray shielding panel, x-ray shielding wall, and method for constructing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray shielding panel which does not take much trouble to be a structure for X-ray shielding and has high workability, an X-ray shielding wall and a method for constructing the same.SOLUTION: The X-ray shielding panel 10 includes: a decorative steel plate 12; and an X-ray shielding concrete layer 13 which is formed by kneading cement equally and dispersedly including sedimentary barium sulfate and equally and dispersedly including reinforcement fibers with water and curing the cement, and is impregnated on the surface of the decorative steel plate in a layered state. The X-ray shielding wall is formed by filling a caulking material between side edge parts after intimately fixing the side edge parts of the adjacent X-ray shielding panel 10 to an X-ray shielding layer of a pole, and the method for constructing the X-ray shielding wall is provided.

Description

  The present invention relates to an X-ray shielding panel, an X-ray shielding wall, and a method for constructing the same, which are used for a wall of a room where X-ray shielding is required.

  In general, it is required to block X-ray radiation in an X-ray room or a hospital room of a hospital. In such X-ray rooms, hospital rooms, etc., for example, an X-ray shielding panel in which lead is covered with gypsum or plywood is used as a material for shielding X-rays. However, since lead is harmful, there are problems such as environmental pollution and the possibility of adverse effects on the human body.

  In order to solve this problem, for example, a lead-free board for X-ray shielding in which barium sulfate is mixed with gypsum and reinforced with glass fiber is known (for example, see Patent Document 1).

  In order to solve the above-mentioned problems, a plurality of glass fiber nonwoven fabrics impregnated with barium sulfate for shielding X-rays and a melamine resin are prepared, and the plurality of glass fiber nonwoven fabrics are laminated to form an X-ray. A decorative board having a structure in which an aluminum layer is formed on the surface of the X-ray shielding plate material while forming a shielding plate material is known (for example, see Patent Document 2).

JP-A-8-62387 JP 2009-262553 A

  However, since the above-mentioned lead-free board has a small X-ray shielding ability (X-ray protection ability), when this lead-free board is used to form an X-ray shielding wall such as an X-ray room or a hospital room, the X-ray shielding wall is made of The thick lead-free board was composed of an inner wall layer and an outer wall layer. In this way, the X-ray shielding wall has a two-layer structure composed of the inner wall layer and the outer wall layer, so that the X-ray shielding capability is enhanced. For this reason, it took a long time to make the X-ray shielding wall, and the workability was poor.

  In addition, since the decorative board described above has a structure in which an aluminum layer is formed on the surface after laminating a plurality of glass fiber nonwoven fabrics impregnated with barium sulfate in order to ensure X-ray shielding ability and strength, The structure is complicated and the manufacturing process is troublesome.

  Accordingly, an object of the present invention is to provide an X-ray shielding panel, an X-ray shielding wall, and a method for constructing the X-ray shielding wall that do not require time and effort to obtain a structure for shielding X-rays. .

  In order to achieve this object, an X-ray shielding panel according to the present invention is obtained by kneading a decorative steel plate and cement containing precipitated barium sulfate uniformly dispersed and reinforcing fibers uniformly dispersed with water. And an X-ray shielding concrete layer formed by hardening and attached to the surface of the decorative steel sheet in a layered manner.

  Further, in the X-ray shielding wall of the present invention, the side edge portion of the adjacent X-ray shielding panel is brought into close contact with the X-ray shielding layer formed on the X-ray equipment room side of the support column. A caulking material is filled between the side edges of the panel. Furthermore, the construction method of the X-ray shielding wall according to the present invention provides at least a surface on the X-ray equipment installation room space side between the X-ray equipment installation room space and the adjacent space of the X-ray equipment installation room space. A support column in which a support X-ray shielding layer is formed is provided, and side edges of a plurality of the X-ray shielding panels whose side edges are adjacent to each other are brought into close contact with the support column X-ray shielding layer. After fixing, a caulking material is filled between the side edges of the adjacent X-ray shielding panels.

  According to such a configuration and method, it is possible to manufacture an X-ray shielding panel that does not require time and effort to form a structure for X-ray shielding.

It is principal part sectional drawing of the X-ray shielding wall of the building provided with the X-ray shielding panel concerning this invention. It is principal part sectional drawing of the X-ray shielding wall of the other building which shows the comparative example with the X-ray shielding wall of FIG. It is an expansion explanatory view of the X-ray shielding panel of FIG. It is explanatory drawing of the vinylon fiber used for the X-ray shielding panel of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1, 1 is an X-ray equipment installation room provided in a building such as a hospital, 2 is a hallway of a building where an X-ray equipment installation room 1 is provided, and 3 is an X-ray equipment installation room 1 and a hallway 2. Is a wall (X-ray shielding wall). In FIG. 1, an operation room provided with X-ray equipment such as an X-ray treatment apparatus is taken as an example of the X-ray equipment installation room 1. However, the X-ray equipment installation room 1 is not limited to the operating room provided with the X-ray equipment. For example, an X-ray room provided with an X-ray imaging apparatus, an X-ray CT diagnostic apparatus, and the like are provided. It may be an X-ray radiographing room, or may be provided in an X-ray equipment room provided with X-ray equipment in a building such as a laboratory facility.

  The wall 3 includes a passage wall 4 on the corridor 2 side and an X-ray shielding wall 5 on the X-ray equipment installation room 1 side. A space 6 is provided between the passage wall 4 and the X-ray shielding wall 5. A passage-side column 7 having a C-shaped horizontal section is provided on the passage wall 4 side of the space 6, and a hollow column 8 having a rectangular horizontal section is provided on the X-ray equipment installation chamber 1 side of the space 6. ing. A passage wall 4 is fixed to the passage-side column 6. Moreover, the hollow support | pillar 8 has the attachment board board part 8a in the X-ray equipment installation chamber 1 side, and the lead tape 9 is adhere | attached and fixed to the outer surface of the indoor side of this attachment board board part 8a.

  The X-ray shielding wall 5 includes a plurality of X-ray shielding panels 10. Among the plurality of X-ray shielding panels 10, the opposing edge portions of the adjacent X-ray shielding panels 10 and 10 are brought into close contact with the lead tape 9, and fixing means such as bolts not shown in the mounting plate portion 8a. It is fixed with. A caulking material 11 is filled between the opposing edge portions of the X-ray shielding panels 10 and 10.

  The X-ray shielding panel (radiation shielding panel) 10 includes a decorative steel plate 12 and an X-ray shielding concrete layer (X-ray shielding lead-free board portion) 13 fixed integrally to one surface of the decorative steel plate 12. As shown in FIG. 2, the decorative steel plate 12 includes an indoor side panel portion 12 a along one surface of the X-ray shielding concrete layer 13, a side panel portion 12 b along the side surface of the X-ray shielding concrete layer 13, and a lead tape 9. And a flange portion 12c in close contact with the lead tape 9. In the X-ray shielding panel 10, the side edge portion of the X-ray shielding concrete layer 13 is in close contact with the lead tape 9.

  The X-ray shielding concrete layer 13 is made by kneading a cement in which precipitated barium sulfate is uniformly dispersed and cement in which reinforcing fibers having a diameter of several μ to several millimeters are uniformly dispersed and contained in water. Then, the kneaded mixed material (concrete material) is applied to the surface of the decorative steel plate 12 in a layered manner and cured, so that it is integrally attached and fixed (adhesive fixed) to the one surface of the decorative steel plate 12. .

  Here, as the reinforcing fiber, as shown in FIG. 3, a vinylon fiber 14 having a large number of vertically elongated irregularities 14 a formed on the entire surface in the circumferential direction is used as the fiber reinforcing fiber. For this reason, the cement is bonded and fixed to the unevenness 14 a on the surface of the vinylon fiber 14. The unevenness 14a enhances physical bonding (anchor effect) with cement (cement matrix), that is, an adhesive fixing effect. Note that ordinary porteland cement is used as the cement.

  Also, an acrylic resin emulsion-based water-based paint is preferably used in order to increase the bonding force between the cement and the precipitated barium sulfate and vinylon fibers 14. In this case, the decorative steel plate 12 is placed in a mold (not shown) so that the surface to be a decorative surface is down. On the other hand, a mixed material (concrete material) is manufactured by kneading an acrylic resin emulsion-based water-based paint with water together with cement, the precipitated barium sulfate, and the reinforcing fibers 14. And this mixed material is apply | coated to the back surface (upper surface in a shaping | molding die) of the decorative steel plate 12, and is hardened. At this time, the acrylic resin emulsion-based water-based paint firmly adheres and fixes the X-ray shielding concrete layer 13 to one surface (surface) of the decorative steel plate 12. Thereafter, by removing the X-ray shielding panel 10 including the X-ray shielding concrete layer 13 and the decorative steel plate 12 from the mold, the X-ray shielding panel 10 can be used as an X-ray shielding wall.

  Further, the reinforcing fibers such as the decorative steel plate 12 and the vinylon fiber 14 increase the strength of the X-ray shielding panel 10 and prevent peeling by impact load or the like. In addition, the decorative steel plate 12 improves cosmetic properties, cleanliness, and detergency, and enhances the radiation shielding effect.

  By the way, the case where the normal wall which divides an operating room and a passage wall is made into an X-ray shielding wall and the wall 3 (X-ray shielding wall) of FIG. 1 of this Example mentioned above are compared. FIG. 1A shows an example in which an X-ray shielding wall is formed using a normal wall. FIG. 1A shows an example in which an operating room of a hospital is an X-ray equipment installation room 1 and the operating room and corridor 2 are partitioned by a triple wall 15.

  In FIG. 1A, a wall 15 has a passage wall 4 made of a general wall material on the passage 2 side and a decorative wall 16 having no X-ray shielding ability on the X-ray equipment installation room 1 side. This decorative wall 16 is obtained by laminating a decorative panel 19 on a plate 18 having no X-ray shielding ability. 1A is provided with an X-ray shielding board 17 between the passage wall 4 and the decorative wall 16 in order to shield X-rays from the X-ray equipment installation room 1 to the corridor 2. As described above, the wall 15 in FIG. 1A has a triple structure from the passage wall 4, the decorative wall 16 and the X-ray shielding board 17.

  The X-ray shielding board 17 is disposed in the space 20 between the passage wall 4 and the decorative wall 16 in parallel with the passage wall 4 and the decorative wall 16 at a distance and in the approximate center of the space 20. At the same time, it is fixed to the passage-side column 7 by fixing means such as a bolt (not shown). Furthermore, the decorative panel 19 is fixed to the support column 21 on the X-ray equipment installation room 1 side.

  Comparing the wall 15 of FIG. 1A with the wall 3 of the present embodiment of FIG. 1, the wall 15 of FIG. 1A has a triple structure from the passage wall 4, the decorative wall 16 and the X-ray shielding board 17. On the other hand, the wall 3 of this embodiment shown in FIG. 1 has a double structure from the passage wall 4 and the X-ray shielding panel 10, and the wall 3 of this embodiment of FIG. The structure is one layer less than that. As described above, the wall 3 of this embodiment shown in FIG. 1 has a configuration in which an X-ray shielding material (X-ray shielding concrete layer 13) is integrated instead of the plate material 18 in FIG. The structure corresponds to “omitted structure”. And the X-ray shielding concrete layer 13 is formed using the lead-free concrete material which mixed barium and cement as the material of the integrated X-ray shielding material. This X-ray shielding concrete layer 13 has a performance of 2.1 pb (when the thickness is 21 mm). Even if only this X-ray shielding concrete layer 13 is seen, this X-ray shielding concrete layer 13 is a conventional lead-free board. Better than 0.75pb (when thickness is 12.5mm).

  Such a wall 3 according to this embodiment of FIG. 1 is a double-structured wall in which one layer is reduced from the triple-structured wall 15 of FIG. 1A, so that the wall 3 of FIG. Both cost and workability can be reduced.

  Moreover, since the decorative steel plate 12 faces the operating room side, it is possible to easily clean the surface dirt and the like.

Example 1
Table 1 shows the mixing ratio of the raw materials of the X-ray shielding concrete layer 13 used for the X-ray shielding panel (radiation shielding panel) 10.

(X-ray shielding concrete layer)
A sample of the X-ray shielding concrete layer 13 having the mixing ratio of raw materials as shown in Table 1 and a thickness of 21 mm was prepared, and an X-ray shielding test was performed on this sample. In this sample, a shielding performance corresponding to a lead equivalent of 2.1 pb was obtained. At this time, the specification of the decorative steel plate is
・ Decorated steel sheet iron plate SPCC1.0 makeup finish ・ Size W910 × H2000mm t = 22mm
It was.
(Example 2)
In Example 2, the materials shown in the following [A] are used as the materials (raw materials) used for the X-ray shielding concrete layer 13 used for the X-ray shielding panel 10, and the blending amount (blending ratio) of the following [B] The test was carried out on the ones as shown in FIG.
[A]. Materials used for X-ray shielding concrete layer 13
(1). Cement Ordinary Portland cement (JIS R5210)
(Manufactured by Taiheiyo Cement Co., Ltd.)

(2). Barium sulfate Precipitated barium sulfate 30
(Nippon Chemical Industry Co., Ltd.)

(3). Reinforcing fiber (fiber reinforcing fiber)
Powerron (registered trademark), (RSC 15 × 8)
(Kuraray vinylon fiber)

(4). Water-based paint cash register color (product name)
(Water-based paint manufactured by Shin-Etsu Sangyo Co., Ltd.)

[B]. Material content of X-ray shielding concrete layer 13
-Sample size of X-ray shielding concrete layer 13
100mm × 100mm × 21mm
[C] Test results
The material (A) used in [A] was kneaded with the material [B], filled into a mold, and cured at room temperature to produce a sample of the X-ray shielding concrete layer 13. In addition, as a sample of this X-ray shielding concrete layer 13, the thing of the following specifications of S1-S6 was manufactured.
c%: Precipitated barium sulfate content tmm: Thickness of the X-ray shielding concrete layer 13 And, using the measuring device (a), under the measurement condition (b), JIS Z4501 “Lead equivalent of crystal for X-ray protection According to the “Test method”, the transmitted X-ray dose of the sample of the X-ray shielding concrete layer 13 having the specifications of S1 to S6 was measured to obtain the lead equivalent.
(a) Measuring instrument Ionization chamber irradiation dose rate meter Toyo Medic RAMTEC-1000D type A-4 probe used
X Dosimetry unit Air collision kerma
X-ray beam Narrow beam
(b). Measurement conditions
X-ray device Philips MG-161 type (smooth circuit, focal length 3.0mm, Be window)
X-ray tube voltage and tube current MG161 type l00kV, 12.5mA Additional filter plate 0.25mmCu
X-ray tube focus-sample distance 1500 mm
Sample-measuring distance 100mm
By this test, the measurement results as shown in Table 7 were obtained.

The X-ray shielding performance of the X-ray shielding panel 10 of this example and the existing lead-free board as described in the conventional example were compared.

  In order to construct an X-ray shielding wall having an X-ray shielding performance equivalent to a lead equivalent of 1.5 pb using this existing lead-free board, two lead-free boards having a thickness of 12.5 mm are attached (two sheets). It was necessary to form a laminated lead-free board having a thickness of 25 mm.

  By the way, normally, an amount equivalent to 1.5 pb is required for X-ray protection. Therefore, since the conventional lead-free board is equivalent to 0.75 pb, two sheets are bonded to make an equivalent of 1.5 pb. Since the X-ray shielding panel 10 of the present embodiment has an equivalent amount of 2.1 pb at 21 mm, there is an advantage that it can cope with both cases of an equivalent amount of 1.5 pb and 2.0 pb. Thus, in the X-ray shielding panel 10 of the present embodiment, the X-ray shielding performance can be sufficiently ensured with only one sheet without stacking 21 mm double or triple.

  Conventionally, in order to ensure X-ray shielding performance equivalent to a lead equivalent of 2.0 pb, a lead-free board having a thickness of 12.5 mm is attached three times (three layers are laminated) and the thickness is 37.5 mm. An X-ray shielding wall having a thickness of 25.8 mm was formed by forming a laminated lead-free board or by sandwiching a 0.8 mm bond steel plate between two lead-free boards having a thickness of 12.5 mm. For this reason, in the construction method of constructing an X-ray shielding wall using a conventional lead-free board, the workability is not good.

  On the other hand, since the X-ray shielding panel 10 of this embodiment has a performance equivalent to 2.0 pb with a thickness of 21 mm, the lead equivalent is 2.0 pb using the 9 mm X-ray shielding panel 10. When constructing an X-ray shielding wall having a considerable amount of X-ray shielding performance, the X-ray shielding performance can be sufficiently ensured with only one X-ray shielding panel 10 without being laminated in two or three layers.

  Moreover, the X-ray shielding wall by the X-ray shielding panel 10 of the present embodiment can be made thinner than the thickness of the X-ray shielding wall using the conventional lead-free board, so that it is more than the conventional X-ray shielding wall using the lead-free board. Weight reduction can be achieved.

  Thus, when constructing an X-ray shielding wall with the X-ray shielding panel 10 of the present embodiment, a single X-ray shielding panel is used without double-plying and triple-plying (stacking) like conventional lead-free boards. Since the X-ray shielding performance can be sufficiently ensured only by providing 10, the X-ray shielding wall can be constructed at a low cost, and the workability is also excellent.

  As described above, the X-ray shielding panel 10 according to the embodiment of the present invention includes the decorative steel plate 12 and the cement in which the precipitated barium sulfate is uniformly dispersed and the reinforcing fibers are uniformly dispersed and contained. And an X-ray shielding concrete layer 13 which is formed by kneading with water and curing, and is attached to the surface of the decorative steel plate in layers.

  According to this configuration, the reinforcing fiber is mixed with the X-ray shielding concrete layer 13 attached and fixed to the decorative steel plate 12 so that the decorative steel plate 12 is reinforced with the X-ray shielding concrete layer 13. There is no need to provide a board or the like for supporting the steel plate 12 separately from the X-ray shielding member. Moreover, since the X-ray shielding concrete layer 13 is a single layer, the X-ray shielding concrete layer is compared with the case where a plurality of reinforcing fibers impregnated with barium for X-ray shielding are laminated to form an X-ray shielding board. 13 can be manufactured easily and quickly. As a result, since boards and panels used for the X-ray shielding wall can be reduced, it is possible to manufacture an X-ray shielding panel with good workability without taking time to construct a structure for X-ray shielding.

  In the X-ray shielding panel according to the embodiment of the present invention, the cement is adhered and fixed to the unevenness 14a on the surface of the vinylon fiber 14 by using the reinforcing fiber as the vinylon fiber 14 having the unevenness 14a formed on the surface. Has been.

  According to this configuration, the unevenness 14a on the surface of the vinylon fiber 14 increases the adhesive fixing force of cement, and the X-ray shielding concrete layer 13 can be prevented from cracking and peeling.

  Further, in the X-ray shielding panel according to the embodiment of the present invention, the acrylic resin emulsion-based water-based paint is kneaded with water together with the cement, the precipitated barium sulfate, and the reinforcing fiber, and cured, whereby the particles of the cement are obtained. In addition, the precipitated barium sulfate particles are bonded and fixed, and the X-ray shielding concrete layer 13 is bonded and fixed to the decorative steel plate 12 with the water-based paint.

  According to this configuration, when the X-ray shielding concrete layer 13 is hardened, the water-based paint firmly adheres and fixes cement particles and precipitated barium sulfate particles, and also attaches the X-ray shielding concrete layer 13 to the decorative steel plate 12. It will be firmly bonded and fixed to. As a result, the X-ray shielding concrete board is formed separately from the decorative steel plate 12, and then the X-ray shielding concrete board is fixed to the decorative steel plate 12 with an adhesive or the like to form an X-ray shielding panel. Thus, the X-ray shielding panel can be manufactured easily and quickly.

  The X-ray shielding wall 5 according to the embodiment of the present invention is adjacent to an X-ray equipment installation room space (X-ray equipment installation room 1) and the X-ray equipment installation room space (X-ray equipment installation room 1). The strut (hollow strut 8) planted and fixed between the space (corridor 2) and the surface of the strut (hollow strut 8) at least on the space for the X-ray equipment installation room (X-ray equipment installation room 1) The support X-ray shielding layer (lead tape 9) provided on the support column is fixed to the support column (hollow support column 8) with the side edges in close contact with the support X-ray shielding layer (lead tape 9). Further, a plurality of the X-ray shielding panels 10 whose side edges are adjacent to each other and a caulking material is filled between the side edges of the adjacent X-ray shielding panels 10.

  According to this configuration, X-ray shielding between a plurality of adjacent X-ray shielding panels 10 and 10 can be performed by the support X-ray shielding layer (lead tape 9). Even if the line shielding panels 10 and 10 are used, the X-ray shielding wall 5 can be easily and quickly constructed.

  Further, in the X-ray shielding wall 5 according to the embodiment of the present invention, the side edge portion of the X-ray shielding concrete layer 13 constituting the X-ray shielding panel 10 serves as the X-ray shielding layer for the column (hollow column 8). While being in close contact with each other, the decorative steel plate 12 of the X-ray shielding panel 10 faces the space for the X-ray equipment installation room (X-ray equipment installation room 1).

  According to this configuration, since the side edge portion of the X-ray shielding concrete layer 13 constituting the X-ray shielding panel 10 is in close contact with the support X-ray shielding layer (lead tape 9), a plurality of X-ray shielding panels are provided. X-ray shielding between 10 and 10 can be performed reliably. Moreover, since the decorative steel plate 12 is faced to the X-ray equipment installation room space (X-ray equipment installation room 1) side, dirt on the X-ray shielding wall 5 can be easily wiped off.

  Further, in the X-ray shielding wall 5 of the embodiment of the present invention, the X-ray shielding layer for the column is on the X-ray facility installation room space (X-ray facility installation chamber 1) side of the column (hollow column 8). This is an X-ray shielding material (lead tape 9) attached to the surface.

  According to this configuration, the X-ray shielding layer for the column can be easily formed by attaching the X-ray shielding material (lead tape 9) to the column (hollow column 8) at the site where the X-ray shielding wall 5 is constructed. The support X-ray shielding layer can be formed quickly, and the support X-ray shielding layer can be formed only on the part necessary for X-ray shielding of the support (hollow support 8), thus eliminating waste of materials. Can do.

  In the above-described embodiments, as the X-ray shielding material, an X-ray shielding tape, that is, a lead tape 9 formed of a material capable of shielding X-rays is used. However, the X-ray shielding material is not necessarily limited to this. For example, the X-ray shielding tape may be a resin tape mixed with fine particles of a material capable of shielding X-rays. Further, an X-ray shielding plate may be encountered as the X-ray shielding material. As this X-ray shielding plate, for example, a lead plate capable of shielding X-rays or a resin plate mixed with fine particles of a material capable of shielding X-rays may be used. In short, as long as it is formed in a tape shape or a plate shape from a material capable of shielding X-rays, other material may be used instead of the lead tape 9.

  In the construction method of the X-ray shielding wall 5 according to the embodiment of the present invention, the space for the X-ray equipment installation room (X-ray equipment installation room 1) and the space for the X-ray equipment installation room (X-ray equipment installation room 1) ) With an X-ray shielding layer (lead tape 9) formed on at least the surface on the X-ray equipment installation room space (X-ray equipment installation room 1) side between the adjacent space (corridor 2) ( Hollow struts 8) are provided, and the side edges of a plurality of the X-ray shielding panels 10 whose side edges are adjacent to each other are brought into close contact with the strut X-ray shielding layer (lead tape 9). After fixing to the column 8), the caulking material is filled between the side edges of the adjacent X-ray shielding panels 10.

  According to this method, X-ray shielding between a plurality of adjacent X-ray shielding panels 10 and 10 can be performed by the support X-ray shielding layer (lead tape 9). Even if the line shielding panels 10 and 10 are used, the X-ray shielding wall 5 can be easily and quickly constructed.

  Moreover, in the construction method of the X-ray shielding wall 5 according to the embodiment of the present invention, the side edge portion of the X-ray shielding concrete layer 13 constituting the X-ray shielding panel 10 is used as the X-ray shielding layer for lead (lead tape). 9), the decorative steel plate 12 of the X-ray shielding panel 10 is exposed to the X-ray equipment installation room space (X-ray equipment installation room 1) side by being fixed to the support column (hollow support column 8). I try to do it.

  According to this method, the X-ray shielding concrete layer 13 constituting the X-ray shielding panel 10 is brought into close contact with the support X-ray shielding layer (lead tape 9), whereby a plurality of X-ray shielding panels 10, X-ray shielding between 10 can be performed reliably. Moreover, since the decorative steel plate 12 is faced to the X-ray equipment installation room space (X-ray equipment installation room 1) side, dirt on the X-ray shielding wall 5 can be easily wiped off.

  Moreover, in the construction method of the X-ray shielding wall 5 according to the embodiment of the present invention, the column (X-ray equipment installation room 1 (X-ray equipment installation room 1)) and the adjacent space (corridor 2) between the columns ( After planting and fixing the hollow support column 8), an X-ray shielding material (lead tape 9) is attached to the surface of the support column (hollow support column 8) on the X-ray facility installation room space (X-ray facility installation room 1) side. And the said X-ray shielding layer for support | pillars is formed with the said X-ray shielding material (lead tape 9).

  According to this method, the support X-ray shielding layer can be easily formed by attaching the X-ray shielding material (lead tape 9) to the support (hollow support 8) at the site where the X-ray shielding wall 5 is constructed. The support X-ray shielding layer can be formed quickly, and the support X-ray shielding layer can be formed only on the part necessary for X-ray shielding of the support (hollow support 8), thus eliminating waste of materials. Can do.

10 ... X-ray shielding panel 10
12 ... decorative steel plate 13 ... X-ray shielding concrete layer 14 ... vinylon fiber (reinforcing fiber)
14a ... uneven

Claims (9)

With a decorative steel plate,
It is formed by kneading and hardening a cement containing precipitated barium sulfate uniformly dispersed and reinforcing fibers uniformly dispersed in water, and is layered on the surface of the decorative steel plate. An X-ray shielding panel comprising: an X-ray shielding concrete layer.   2. The X-ray shielding panel according to claim 1, wherein the cement is bonded and fixed to the unevenness of the surface of the vinylon fiber by using the reinforcing fiber as a vinylon fiber having an unevenness formed on the surface. X-ray shielding panel.   2. The X-ray shielding panel according to claim 1, wherein an acrylic resin emulsion-based water-based paint is kneaded with water together with the cement, the precipitated barium sulfate, and the reinforcing fiber to be hardened, whereby the cement particles and the settled particles are set. An X-ray shielding panel characterized in that particles of porous barium sulfate are bonded and fixed, and the X-ray shielding concrete layer is bonded and fixed to the decorative steel plate with the water-based paint.   A support column planted and fixed between the space for the X-ray equipment installation room and the space adjacent to the space for the X-ray equipment installation room, and provided on at least the surface of the space for the X-ray equipment installation room of the support column A support X-ray shielding layer, a plurality of the X-ray shielding panels fixed to the support and having side edges adjacent to each other in a state where a side edge portion is in close contact with the support X-ray shielding layer; An X-ray shielding wall, wherein a caulking material is filled between side edges of the adjacent X-ray shielding panels.   5. The X-ray shielding wall according to claim 4, wherein a side edge portion of the X-ray shielding concrete layer constituting the X-ray shielding panel is in close contact with the support X-ray shielding layer, and the X-ray shielding wall is provided. An X-ray shielding wall, wherein a decorative steel plate of the panel faces the space side for the X-ray equipment installation room.   6. The X-ray shielding wall according to claim 4 or 5, wherein the support X-ray shielding layer is an X-ray shielding material attached to a surface of the support on the X-ray equipment installation room space side. X-ray shielding wall.   A support column in which a support X-ray shielding layer is formed on at least the surface of the X-ray facility installation room space is provided between the X-ray facility installation room space and the space adjacent to the X-ray facility installation room space. The side edges of a plurality of the X-ray shielding panels whose side edges are adjacent to each other are fixed to the support in close contact with the support X-ray shielding layer, and then the side edges of the adjacent X-ray shielding panels A method for constructing an X-ray shielding wall, wherein a caulking material is filled between the parts.   8. The method for constructing an X-ray shielding wall according to claim 7, wherein a side edge portion of the X-ray shielding concrete layer constituting the X-ray shielding panel is brought into close contact with the support X-ray shielding layer and fixed to the support column. Accordingly, an X-ray shielding wall characterized in that the decorative steel plate of the X-ray shielding panel faces the space side for the X-ray equipment installation room.   9. The construction method of an X-ray shielding wall according to claim 7 or 8, wherein the support is installed and fixed between the space for the X-ray equipment installation room and the adjacent space, and then the X-ray equipment is installed on the support. A method for constructing an X-ray shielding wall, characterized in that an X-ray shielding material is attached to a surface on the room space side, and the support X-ray shielding layer is formed from the X-ray shielding material.