JP2549434Y2 - Radioactive surface pollutant collection tool - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a radioactive surface contaminant collecting tool used for measuring the amount of contamination on a surface contaminated by radioactive material.

[0002]

2. Description of the Related Art Conventionally, in order to measure the amount of such surface contamination, a wipe-off type radioactive surface contamination measurement method (JIS-Z) is used.
−4504) is applied. In this method, as shown in FIG. 4, a wiper (11) A and a holder (1) are made of filter paper.
2) A tadpole-shaped sampling tool (1) A having A is used.

[0003]

[Problem to be Solved by the Invention] In the above-mentioned measuring method, using the sampling tool (1) A, the wiper surface of the wiper (11) A
(13) Wipe off the radioactive material using A and collect it.
(1) The amount of radioactive material collected by A is measured, but after collection, the wiper surface (13) A of the sampling tool (1) A is contaminated by the radioactive material, so the wiper surface (13) ) A
Has to be handled so that the radioactive material does not exfoliate from it, and has a drawback that handling is very troublesome.

[0004]

According to the present invention, as a means for solving the above-mentioned conventional problems, a wiper made of filter paper is used.
(11) A wiper part (11) of the sampling tool main body (1) having a holder part (12) and a wiper surface of the wiper part (11) at a root end of the main body.
The present invention provides a radioactive surface contaminant collecting tool (10) having a coating layer (2) for covering (13) pivotally attached thereto and provided with an adhesive layer (21) on the coating layer (2).

[0005]

[Action] The wiper surface of the wiper part (11) of the sampling tool body (1)
According to (13), surface contaminated by radioactive material (6)
Wipe the radioactive substance (6) from (7) and then apply the adhesive layer (2
The coating layer (2) is applied to the wipe surface (13) via 1).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to an embodiment shown in FIGS. 1 to 3. (1) is a main body of a sampling tool, the main body (1) is made of filter paper, a wiping part (11) and a holder part. (12). A coating layer (2), which is a transparent sheet made of a plastic such as polyethylene, polypropylene, or polyvinyl chloride, is coated on the root end of the wiper section (11) on the wiper surface (13) side.
A handle (23) is formed at the upper end of (2), and an adhesive layer (21) is further formed on the inner surface of the coating layer (2), and the adhesive layer (21) is releasable. It is covered and protected by a sheet (22).

Further, a backing layer (3) is pivotally attached to a root end of the wiper portion (11) of the body (1) opposite to the wiper surface (13) so as to face the coating layer (2). I have. The covering layer (2) and the backing layer (3) are made larger so as to protrude from the outer periphery of the wiper portion (11) of the main body (1).

[0008] As shown in FIG. 2, the sampling tool (10) having the above-mentioned structure holds the holder section (12) with fingers (4) and (5) and holds the radioactive substance (6).
The surface (7) contaminated by the wiping is wiped off by the wiping surface (13) of the wiping part (11), and the radioactive substance (6) is adhered to the wiping surface (13). Next, as shown in FIG. 3, the release sheet (22) of the coating layer (2) is peeled off, and the coating layer (2) is applied to the wiped surface (13) via the adhesive layer (21). The backing layer (3) covers the back surface of the wiper (11) with the backing layer (3).
And the coating layer (2) are adhered through an adhesive layer (21), and the handle portion (23) of the coating layer (2) is bent to adhere to the backing layer (3).

In this manner, the wiper portion (1) of the main body (1) is
1) is covered by the coating layer (2) and the backing layer (3),
Since the wipe surface (13) of the wipe part (11) is not exposed,
The radioactive material (6) adhering to the wipe surface (13) does not peel off, and the handling of the sampling tool (10) becomes extremely easy.

In the present invention, the release sheet (22) of the above embodiment is used.
The backing layer (3) is not essential and may be omitted.

[0011]

[Effects of the Invention] Therefore, in the present invention, since the wipe surface of the sampling tool which has been wiped with radioactive material is covered with the coating layer and is not exposed, the radioactive material adhering to the wipe surface is not exfoliated, and handling is not performed. It will be very easy.

[0012]

[Brief description of the drawings]

 1 to 3 show one embodiment of the present invention.

FIG. 1 is a perspective view

FIG. 2 is an explanatory view of a wipe state.

FIG. 3 is a perspective view after wiping.

FIG. 4 is a perspective view of a conventional example.

[Explanation of symbols]

 (1) ・ ・ ・ ・ ・ Sampling tool body (10) ・ ・ ・ ・ Sampling tool (11) ・ ・ ・ ・ Wipe part (12) ・ ・ ・ ・ Holder part (13) ・ ・ ・ ・ Wipe face (2) .... Coating layer (21) ... Adhesive layer

Claims (1)

(57) [Scope of request for utility model registration] 1. A wiper unit comprising a filter paper and having a wiper unit and a holder unit, a coating layer for covering a wiper surface of the wiper unit is pivotally attached to a root end of the wiper unit body, and an adhesive layer is provided on the coat layer. Radioactive surface contaminant collection tool characterized by having