JPH065656Y2 - Housing device for personal dosimeter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention is a film for measuring radiation dose of X-rays, γ-rays, etc. received from outside the body to an individual, which is shielded by a packaging material in a film badge. And a device for accommodating a holder accommodating a thermoluminescence element in a thermoluminescence dosimeter.

<Prior Art> In a facility that handles radiation, it is necessary to precisely understand how much radiation each person entering and exiting the radiation controlled area receives.

Conventionally, a film batch using a photosensitizer has been widely used, and by constantly wearing this film batch in a facility, the film inside the film is developed regularly, and the radiation received by each individual The amount was measured and the health of the personnel working in the facility was managed.

In addition, for example, a thermoluminescence dosimeter (THERMO LUMINESCENCE DOSIMETER) abbreviated name TLD that uses Ca ₂ SO ₄ or Li ₂ B ₄ O ₇ etc. and can be repeatedly used by regeneration processing was developed, and as a mainstream of future personal dosimeters , Its existence value is expected.

Although it is a thermoluminescence dosimeter that can measure more quickly and accurately than a film badge, this is also a user that must be worn by the user at all times as with a film badge. Accommodating,
It is necessary to wear the thermoluminescent dosimeter by the fixing means associated with the container. As shown in FIG. 3, a so-called TLD is used to achieve such an object.
There are badges.

In FIG. 3, H is a holder for holding the thermoluminescence element P, C is a casing in which the holder H is housed, and G is a clip hinged to the casing C.

The parts other than the thermoluminescent element P are made of synthetic resin or the like, and the casing C is made of a transparent material so that the holder H and the thermoluminescent element P inserted therein can be visually recognized from the outside. At the same time, one end of the casing C is always operated by the action of a spring (not shown).
A method has been adopted in which a thermoluminescent dosimeter is fixed to the body of each individual by holding a part of clothing or the like by a clip G pressed against the body.

The film used for the film badge is, similarly to the thermoluminescence element, accommodated in an appropriate accommodation device and then fixed to an appropriate place on the clothing of the user.
Both can be accommodated in accommodating devices of substantially the same size.

<Problems to be solved by the invention> Although the above-mentioned TLD badge can achieve the minimum purpose, the size of the holder H and the badge film shielded by the packaging material is about 49 × 17 × 6 (mm). Since the casing C is delicate, it is difficult to attach and detach the casing C to and from the holder H, and although the measurement can be accurately performed, there is a drawback that a preparatory work for the measurement requires a lot of time.

Moreover, since the minimum necessary design is only given, the usability is poor, and when the casing C is attached to the body, it catches on the clothing and falls off,
There were also drawbacks such as damage to the equipment and dissipation of the thermoluminescent element P.

<Means for Solving the Problems> In the present invention, the film or the holder H is housed between the main body and the lid body which are hinged to each other and can be opened and closed.

The lid is provided with an opening so that an internal film or holder H
The clip for personal identification attached to the label is made visible from the outside, and the clip is hinged so as to cover the opening on the outer surface of the lid. By forming this clip with a transparent material, the film or holder H housed inside can be visually recognized from the outside through the clip and the opening.

Further, at the opposite end of the hinged portion of the main body and the lid, an engaging projection is provided on the main body side, an engaging recess is provided on the lid side, and they are engaged with each other. Make sure that the main body and lid are kept closed.

<Operation> According to the present invention, the film or the holder H is securely accommodated in the cavity formed between both the main body and the lid, and the clip is attached to the lid to secure the device to the clothing. Fixed to the section.

<Embodiment> An embodiment of the present invention will be described with reference to FIGS. 1 and 2.

In the drawings, reference numeral 1 is a main body, and 2 is a lid body. Two are hinged to each other.

At the end opposite to the hinged end, the main body 1 is provided with an engagement projection 6 and the lid 2 is provided with an engagement recess 7, so that the main body 1 and the lid 2 are provided with a butterfly attachment projection 3. When the hinge structure formed by the butterfly-wearing recess 4 and the pin 5 is used for assembly, the engaging projection 6 fits into the engaging recess 7, and they are completely integrated as a mutual fixing means. It

A main body recess 1'and a cover recess 2'are abutted on the surface of the main body 1 facing the lid 2 and the surface of the main body 2 facing the main body 1, respectively. When they are integrated, a cavity is formed between them by the main body 1 and the lid body 2, and the holder H or the film badge, which contains a thermoluminescence element (not shown) in the cavity, is light-shielded and packaged. You can store the file.

An opening 8 is formed on the wall surface of the lid recess 2'of the lid 2 toward the outside so that the film or holder H housed inside can be visually recognized from the outside. it can.

A shaft-mounting protrusion 9 is provided on one end of the outer surface of the lid body 2 (see FIG. 2), and a clip 10 made of transparent synthetic resin is provided.
By fitting the shaft-mounting projections 9 between the shaft-mounting portions 11 installed at two positions, and inserting the shaft 12 through them,
The clip 10 is pivotally attached to the lid body 2. A spring 13 is wound around the shaft 12, and the ends of the spring 13 are brought into contact with the lid 2 and the clip 10, respectively, so that the clip 10 is urged clockwise about the shaft in FIG. 1
The tip portion 14 on the right side in FIG. 2 of 0 is pressed against the outer surface of the lid body 2.

A projecting ridge 15 is provided on a part of the lid body 2 with which the tip portion 14 is press-contacted, and the pointed portion 14 cooperates with this to form a part of the clothes inserted between the two (not shown). Sandwich).

In FIG. 2, a gap 17 is formed by the shaft-mounting projection 9 and a small wall 16 adjacent to the shaft-mounting projection 9 and projecting from the clip 10, which is necessary between the clip 10 and the lid 2. In this case, a supporting pin such as a safety pin (not shown) is supported.

Further, as is apparent from the drawings, the clip 10 is axially attached to the lid body 2 in a state of covering the opening 8 of the lid body 2.

In order to use the device of the present invention, a holder H incorporating a thermoluminescent element whose thermoluminescence value has been confirmed in advance or an unused light-shielding packaged film is used as a main body 1 developed as shown in FIG. Inserted between the lids 2, the main body 1 and the lid 2 are brought close to each other around the pin 5, the both are integrated, the engaging projection 6 is fitted into the engaging recess 7, and the holder H or the film is wrapped. , Pressing a part of the clip 10 to separate the tip 14 from the lid body 2, inserting the user's clothing between them, and then releasing the pressing to the clip 10 to fix the entire device to the clothing. Good.

Incidentally, by aligning the notch H'of one corner portion of the holder H shown in FIG. 1 with the oblique side portion 2 "installed at one corner portion of the lid recess 2'of the lid body 2, the holder It is possible to ensure proper directionality when H is housed in the device.

In order to take out the holder H or the film for dose measurement after use, the engaging state of the engaging recess 7 and the engaging projection 6 is released, and the main body 1 and the lid 2 are easily separated. The holder H or film can be taken out to the outside by gently swinging it out.

In addition, as a shape characteristic in the embodiment, the main body 1
All the outer peripheral edges of the lid body 2 and the clip 10 are formed by curved lines to enhance a smooth and comfortable feeling when the user wears the device on clothes.

<Advantages of the Invention> According to the present invention, it is possible to obtain an accommodating device for a personal dosimeter which can surely accommodate the holder H or the film and take it out easily, and can surely attach it to clothes. There is an effect that can be.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the device of the present invention, FIG. 2 is an exploded perspective view of the embodiment shown in FIG. 1, and FIG. 3 is a perspective view of a conventional product. 1 ... Main body, 1 '... Main body depression, 2 ... Lid body, 2' ...
Lid recess, 3 …… Butterfly wearing protrusion, 4 …… Butterfly wearing recess, 5…
… Pin, 6… Engagement protrusion, 7… Engagement recess, 8 ……
Aperture, 9 …… Spindle protrusion, 10 …… Clip, 11 ……
Shaft attachment part, 12 ... Shaft, 13 ... Spring, 14 ... Tip part, 15 ... Projection, 16 ... Small wall, 17 ... Void, H
...... Holder, P ... Thermoluminescence element.

Claims (1)

[Scope of utility model registration request] 1. A main body 1 having a main body recess 1'and a cover 2 having a lid recess 2 ', an opening 8 and a clip 10 are combined into a main body recess 1'and a cover recess 2'. Body 1 and lid 2
An apparatus for accommodating a personal dosimeter, comprising a main body 1 and a lid body 2 hinged so that a cavity is formed therebetween, and a fixing means for fixing the main body 1 and the lid body 2 to each other.