JP4810274B2 - Body surface monitor and manufacturing method thereof - Google Patents

Description

  The present invention relates to a body surface monitor for measuring radioactive contamination on the surface of a human body used in nuclear facilities and the like, and a method for manufacturing the same.

  Nuclear power plants and related facilities are becoming larger in scale, and there is an increasing need for many workers to measure whole body radioactive contamination in a short time. For this reason, the whole body radioactive contamination of an operator can be measured automatically.

In the measurement of the whole body radioactive contamination of the worker (measured person), the measured person enters the body surface monitor at the first stage, performs the measurement at the second stage, and the measurer leaves the body surface monitor at the third stage. , And can be divided into three stages. In the measurement at the second stage, the radiation measuring device needs to be arranged around the body of the measurement subject (front surface, back surface, left and right side surfaces, top surface of head, bottom surface of left and right feet). For this reason, in the body surface monitor, the radiation detectors for the left and right side surfaces are usually housed in the entrance door and the exit door of the box-type main body. Further, the entrance door and the exit door are opened and closed by rotating around the rotation axis, so that the person to be measured can enter and exit the surface monitor (for example, Patent Document 1 and Patent). Reference 2).
Japanese Utility Model Publication No. 60-95567 JP-A-4-216488

  The detector located on the top surface of the subject's head rises / falls according to the height of the subject, so in order for the subject to leave, it is necessary to wait until the top surface detector rises, Waste time occurs in the processing time. Depending on the elevation position of the upper part of the head, the temporal contamination may not be measured sufficiently. In addition, the temporal region is far away from the actual body surface, and contamination is difficult to measure.

  Accordingly, an object of the present invention is to provide a body surface monitor that shortens the time required for radiation measurement and a method for manufacturing the same.

To achieve the above object, the present invention provides a body surface monitor for measuring the radiation emitted from the subject, and feet surface with a radiation detector, greater than the distance the front Symbol the subject can be positioned A ceiling surface portion disposed away from the foot lower surface portion and facing above the foot lower surface portion, a supporting means for supporting the ceiling surface portion at a predetermined position, and disposed between the foot lower surface portion and the ceiling surface portion. A radiation detector disposed between the front surface portion provided with a radiation detector and the front surface portion and the foot lower surface portion and the ceiling surface portion so as to face each other so as to be separated from the front surface portion by a distance larger than a space at which the subject can be positioned Provided with a back surface and radiation detector, a part of the space surrounded by the foot bottom surface, the ceiling surface , the front surface and the back surface can be rotated around the entrance door rotation axis to open and close Entrance door and radiological examination Comprises a vessel, the feet surface, the ceiling surface, the front portion, the space surrounded by the inlet door, openable exit door rotates around the outlet door rotation axis in a state where the rear portion and a closed And an entrance temporal top surface portion provided with a radiation detector, which is disposed at a position above the entrance door and lower than the ceiling surface portion and is rotatable about the entrance door rotation axis, and the exit door And an outlet temporal upper surface portion provided with a radiation detector, which is disposed at a position lower than the ceiling surface portion and is rotatable about the outlet door rotation axis.

Further, the present invention provides a method for manufacturing a body surface monitor for measuring radiation emitted from a measurement subject, a foot lower surface portion, a ceiling surface portion , a front surface portion, a rear surface portion, an entrance door, an exit door, each provided with a radiation detector, a step of manufacturing the inlet side overhead surface and the outlet side overhead surface, the ceiling surface, before Symbol measured person is away from large the feet face than the distance that can be positioned and arranged to face upwardly of the feet face A step, a step of disposing the front surface portion between the foot lower surface portion and the ceiling surface portion, and a back surface portion between the foot lower surface portion and the head upper surface portion than an interval at which the subject can be positioned. The step of disposing the door largely away from the front portion, and the entrance door pivoting around the entrance door rotation axis in a space surrounded by the foot lower surface portion, the ceiling surface portion , the front surface portion and the back surface portion And the entrance door A step of assembling as open as possible, the exit door, the feet surface, the ceiling surface, the front portion, turn the space surrounded by the inlet door of a state where the rear portion and a closed around the outlet door rotation axis A step of moving and assembling it so that it can be opened and closed by the exit door, and rotating the entrance temporal top surface portion above the entrance door and lower than the ceiling surface portion around the entrance door rotation axis. And a step of assembling the outlet side temporal upper surface portion so as to be rotatable about the outlet door rotation shaft at a position above the outlet door and lower than the ceiling surface portion. It is characterized by having.

  According to the present invention, the time required for radiation measurement can be shortened.

  An embodiment of a body surface monitor according to the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same or similar structure, and the overlapping description is abbreviate | omitted.

[First Embodiment]
FIG. 1 is a perspective view of a body surface monitor according to the first embodiment of the present invention. FIG. 2 is a top view of the body surface monitor according to the first embodiment viewed with the ceiling surface portion removed. FIG. 3 is a side view of the body surface monitor according to the first embodiment.

  The body surface monitor of the present embodiment has a square flat plate-shaped foot lower surface portion 7 and a ceiling surface portion 9 that spread horizontally. The foot lower surface portion 7 and the ceiling surface portion 9 are disposed so as to face each other vertically so as to form a space for the person to be measured 31 to enter.

  Between the foot lower surface portion 7 and the ceiling surface portion 9, two columnar front frames 141 and two cylindrical (pipe) shaped rear frames 142 extend in the vertical direction. Three detector units 101 arranged vertically are attached to the front frame 141 and the back frame 142, respectively. The detector units 101 attached to the front frame 141 and the back frame 142 are arranged to face each other in the front-rear direction so as to form a space for the person to be measured 31 to enter.

  The front frame 141 and the back frame 142 are fixed to the ceiling surface portion 9 and the foot lower surface portion 7, respectively, to ensure the strength of the body surface monitor. Further, the detector units 101 arranged between the front frames 141 and between the rear frames 142 also contribute to ensuring the strength of the body surface monitor.

  The detector unit 101 can be easily attached to and removed from the front and back portions of the pipe-shaped frame structure formed by the foot lower surface portion 7 and the ceiling surface portion 9 and the front frame 141 and the rear frame 142 extending therebetween. It is attached. For example, the detector unit 101 has a hole through which the front frame 141 or the rear frame 142 passes, so that the detector unit 101 can be easily attached to or detached from the front frame 141 and the rear frame 142. Yes.

  In addition, a columnar entrance door rotation shaft 10 and a columnar exit door rotation shaft 11 extend between the foot lower surface portion 7 and the ceiling surface portion 9. An entrance door 4 is attached to the entrance door rotation shaft 10. An outlet door 5 is attached to the outlet door rotating shaft 11. The entrance door 4 and the exit door 5 each have two detector units 102 arranged one above the other.

  The entrance door 4 and the exit door 5 are supported so as to be able to open and close by rotating around the entrance door rotation shaft 10 and the exit door rotation shaft 11, respectively. 2 indicate a rotation direction 51 of the entrance door and a rotation direction 52 of the exit door.

  The entrance door 4 and the exit door 5 are arranged so as to face each other so as to form a space for the person to be measured 31 to enter when the entrance door 4 and the exit door 5 are closed. In addition, when the entrance door 4 and the exit door 5 are opened, the person to be measured 31 can pass. 1, 2, and 3, the entrance door 4 is in an open state and the exit door 5 is in a closed state.

  An entrance-side upper surface portion 445 is attached to the entrance door rotating shaft 10 above the entrance door 4 via a head upper surface lifting mechanism 447. The entrance-side upper surface portion 445 is supported so as to be rotatable in the same manner as the entrance door 4.

  Further, an outlet-side upper surface portion 446 is attached to the outlet door rotating shaft 11 above the outlet door 5 via a head upper surface lifting mechanism 447. The outlet-side upper surface portion 446 is supported so as to be rotatable similarly to the outlet door 5.

  In addition, you may make it the entrance side upper surface part 445 and the exit side upper surface part 446 rotate according to rotation of the entrance door 4 and the exit door 5, respectively.

  The inlet side upper surface portion 445 and the outlet side upper surface portion 446 can be moved up and down by a head upper surface lifting mechanism 447 that moves up and down along the inlet door rotating shaft 10 and the outlet door rotating shaft 11, respectively. 1 and 3, the inlet side upper surface portion 445 and the outlet side upper surface portion 446 are located at different heights, but the inlet side upper surface portion 445 and the outlet side upper surface portion 446 have the same height. You may make it move synchronously.

  The entrance door rotation shaft 10 and the exit door rotation shaft 11 are fixed to the ceiling surface portion 9 and the foot lower surface portion 7, respectively, and contribute to securing the strength of the body surface monitor. The detector unit 102 attached to the entrance door rotation shaft 10 and the exit door rotation shaft 11 is preferably attached to the entrance door rotation shaft 10 and the exit door rotation shaft 11 by a method that can be easily detached. For example, the detector unit 102 has a hole through which the inlet door rotating shaft 10 or the outlet door rotating shaft 11 passes, and is attached so as to be easily supported by the inlet door rotating shaft 10 and the outlet door rotating shaft 11, or Allow to be removed.

  The detector unit 101 attached to the front frame 141 and the back frame 142 and the detector unit 102 attached to the entrance door rotating shaft 10 and the exit door rotating shaft 11 can be the same. In this case, a cylinder having the same outer diameter may be used for the front frame 141, the back frame 142, the entrance door rotation shaft 10 and the exit door rotation shaft 11.

  A radiation detector 21 is disposed on the upper surface of the foot lower surface portion 7. An overhead radiation detector 421 is disposed on the lower surfaces of the entrance-side upper surface portion 445 and the exit-side upper surface portion 446. In the detector units 101 and 102, radiation detectors 21 are respectively arranged on the surfaces facing the space where the person 31 to be measured enters.

  When the person to be measured 31 enters such a body surface monitor, the radiation detector 21 and the overhead placed around the body of the person to be measured 31 (front, back, left and right side, top of head, bottom of left and right feet). The radiation emitted from the measurement subject 31 is measured by the radiation detector 421 for measurement. The alternate long and short dash line in FIG. 2 shows an example of a flow line 41 when the person to be measured 31 enters the body surface monitor and a flow line 42 when the person to be measured 31 leaves the body surface monitor. At the time of measurement, the overhead radiation detector 421 is raised and lowered automatically, for example, automatically in accordance with the height of the person 31 to be measured by the head upper and lower mechanism 447.

  The measured radiation intensity is transmitted to, for example, a data processor (not shown), and it is determined whether or not the radiation intensity emitted from the person to be measured 31 is below an allowable limit. If the intensity of the radiation emitted from the person under measurement 31 is less than the allowable limit, the person under measurement 31 goes out of the body surface monitor. If it is above the allowable limit, necessary measures such as decontamination of the surface of the person to be measured 31 and more detailed measurement of radiation will be taken as appropriate.

  When the person to be measured 31 enters the body surface monitor, since the entrance-side upper surface portion 445 is in a position that does not block the flow line 41, the person to be measured 31 does not have to worry about hitting the entrance-side upper surface portion 445. I can enter. Similarly, when the person to be measured 31 exits the body surface monitor, the outlet side upper surface part 446 has moved to a position where the flow line 41 is not blocked, so that the person to be measured 31 has to worry about hitting the outlet side upper surface part 446. Without leaving the body surface monitor.

  For this reason, it is possible to shorten the time from when the person to be measured 31 enters the body surface monitor until the measurement is started and the time from when the person to be measured 31 finishes the measurement until the measurement is completed. Accordingly, the time required for radiation measurement per person to be measured 31 is shortened, and more persons to be measured can be measured per unit time.

  Furthermore, the entrance-side upper surface portion 445 and the exit-side upper surface portion 446 are raised when the entrance door 4 and the exit door 5 are opened, respectively, so that the person 31 can easily enter and exit the body surface monitor. become.

  If the person to be measured 31 is not in the body surface monitor, for example, the entrance door 4 is opened and the entrance door 4 is urged to enter the body surface monitor, while the exit door 5 is closed, A person may be prevented from passing through the monitor. From this state, when the person to be measured 31 enters the body surface monitor, the entrance door 4 may automatically open, and the measurement of radiation may be automatically started. When the radiation measurement is completed and the radiation intensity is below the allowable limit, the exit door 5 may be automatically opened to prompt the person to be measured 31 to go out of the body surface monitor. By confirming that the person to be measured 31 has gone out of the body surface monitor and automatically closing the exit door 5 and opening the entrance door 4, a person can monitor the body surface monitor without measuring radiation. It is also possible to suppress the passage.

  As described above, the body surface monitor of the present embodiment has a simple structure while arranging the radiation detectors necessary as the body surface monitor. For this reason, disassembly and assembly are easy, and accordingly, various adjustment operations and maintenance operations are also facilitated. Therefore, it is easy to move the body surface monitor.

  In the body surface monitor according to the present embodiment, the number of detector units 101 attached to the front frame 141 and the back frame 142 is three, but the number may be increased or decreased as appropriate. Moreover, although the entrance door 4 and the exit door 5 also have two detector units, you may increase / decrease suitably.

  In this embodiment, the entrance door 4 is arranged on the right side and the exit door 5 is arranged on the left side from the back frame 142 toward the front frame 141, but the entrance door 4 is arranged on the left side and the exit door 5 is arranged on the right side. It doesn't matter. Although the entrance door rotating shaft 10 and the exit door rotating shaft 11 are arranged at positions close to the back frame 142, they may be arranged at positions close to the front frame 141.

[Second Embodiment]
FIG. 4 is a perspective view of a body surface monitor according to the second embodiment of the present invention. FIG. 5 is a top view of the body surface monitor according to the second embodiment viewed from the ceiling surface portion.

  The body surface monitor according to the second embodiment is obtained by dividing the body surface monitor according to the first embodiment into a separable entrance door unit 241, central unit 242, and exit door unit 243.

  In the present embodiment, the foot lower surface portion in the first embodiment is divided into a foot lower surface inlet portion 271, a foot lower surface central portion 272, and a foot lower surface outlet portion 273. Further, the ceiling surface portion in the first embodiment is divided into a ceiling surface inlet 291, a ceiling surface central portion 292, and a ceiling surface outlet 293.

  The central unit 242 includes a foot lower surface central portion 272 and a ceiling surface central portion 292, and a front frame 141 and a rear frame 142 extending therebetween. The detector unit 101 is attached to the front frame 141 and the back frame 142.

  The entrance door unit 241 has a foot lower surface entrance 271 and a ceiling surface entrance 291 and an entrance door rotating shaft 10 extending therebetween. The foot lower surface entrance portion 271 and the ceiling surface entrance portion 291 are coupled to the foot lower surface central portion 272 and the ceiling surface central portion 292 in an easily detachable structure, respectively. An entrance door 4 is attached to the entrance door rotating shaft 10.

  The exit door unit 243 has a foot bottom exit 273, a ceiling exit 293, and an exit door rotating shaft 11 extending therebetween. The foot lower surface outlet 273 and the ceiling surface outlet 293 are coupled to the foot lower surface central portion 272 and the ceiling surface central portion 292 in a structure that can be easily attached and detached. An outlet door 5 is attached to the outlet door rotating shaft 11.

  In such a body surface monitor, it becomes easy to freely lay out the rotation shafts of the entrance door 4 and the exit door 5 by combining appropriate entrance door units 241 and exit door units 243. For this reason, the flow line of the person to be measured 31 is optimized in accordance with the operation of the person to be measured 31 irrespective of the building, the room in which the body surface monitor is installed, and the arrangement of the body surface monitor therein. be able to.

  In addition, fitting portions for attaching the entrance door rotating shaft 10 and the exit door rotating shaft 11 at two locations in the longitudinal direction of the foot lower surface inlet portion 271, the foot lower surface outlet portion 273, the top surface inlet portion 291 and the ceiling surface outlet portion 293 are provided. It may be provided. Thereby, the entrance door rotating shaft 10 and the exit door rotating shaft 11 can be disposed in the vicinity of the front frame 141 and the vicinity of the back frame 142. In this way, it is not necessary to introduce a new entrance door unit 241 or exit door unit 243 according to the installation location.

  As described above, the body surface monitor of the present embodiment can be easily transferred. In addition, by optimizing the flow lines of the persons to be measured 31, more persons to be measured 31 can be measured per unit time.

[Third Embodiment]
FIG. 6 is a top view of the body surface monitor according to the third embodiment of the present invention viewed from the ceiling surface portion.

  The body surface monitor of the present embodiment includes a front frame, a rear frame, and a detector unit attached thereto in the body surface monitor of the first embodiment, respectively. It replaces with the frame 342 and the detector unit 301 with a fixing mechanism. A U-shaped frame arrangement section 302 is formed in the detector unit 301 with a fixing mechanism. The front frame with fixed part 341 or the rear frame with fixed part 342 is located in the frame placement unit 302.

  FIG. 7 is a sectional view taken along the arrow VII-VII in FIG. 6 of the body surface monitor according to the third embodiment.

  Six frame-side fixing portions 346 protrude from the two side frames 341 with fixing portions arranged side by side on the opposite side of the opposite side. Similarly, the frame side fixing part 346 protrudes on the opposite side of the two facing rear face frames 342 with the fixing part.

  FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 9 of the detector unit with a fixing mechanism 301 according to the third embodiment. FIG. 9 is a sectional view taken along the line IX-IX in FIG. 8 of the detector unit 301 with a fixing mechanism of the third embodiment.

  The detector unit with a fixing mechanism 301 has two detector unit fixing mechanisms 345 so as to be supported by the frame side fixing portions 346 of the two rear frames with fixing portions 342.

  The detector unit fixing mechanism 345 has fixing devices 351 located at two places in the vertical direction. Each fixing device 351 is supported so as to be rotatable at a rotation fulcrum 352. Further, a position pressing spring 354 is attached to the fixing device 351, and when it is rotated from a predetermined position, a force to return to the predetermined position is applied. In addition, the fixtures 351 located at two upper and lower positions are coupled by an upper and lower synchronization tool 353, and the movements of these fixtures 351 are synchronized.

  When the detector unit 301 with the fixing mechanism is pressed toward the two rear frames 342 with the fixing portions in the assembling direction 61 indicated by the one-dot chain line arrows in FIGS. After rotating to a position 360 indicated by a broken line, the position returns to a position 351 indicated by a solid line in FIG. As a result, the detector unit 301 with the fixing mechanism is caught by the frame side fixing portion 346 and attached to the two rear frames 342 with the fixing portion.

  When the detector unit 301 with the fixing mechanism is removed from the rear frame 342 with the fixing portion, the fixing device 351 is lifted up, and the direction opposite to the assembling direction 61 indicated by the one-dot chain line arrow in FIGS. It can be removed by pushing in the direction. Since the fixing devices 351 located at the two upper and lower positions move synchronously, the four fixing devices 351 can be detached from the frame-side fixing portion 346 by lifting the two left and right fixing devices 351 upward.

  Similarly, the detector unit 301 with a fixing mechanism can be attached to and detached from the two front frames 341 with a fixing part.

  Thus, in this Embodiment, the detector unit 301 with a fixing mechanism can be attached or detached easily. Moreover, it is not necessary to prepare a dedicated tool for this attachment / detachment. For this reason, disassembly and assembly of the body surface monitor main body are simple, and the body surface monitor can be easily moved.

[Fourth Embodiment]
FIG. 10 is a perspective view of a body surface monitor according to the fourth embodiment of the present invention.

  The body surface monitor of the present embodiment is obtained by adding a small side radiation detector 548 to the body surface monitor of the first embodiment.

  The small side radiation detector 548 is positioned on the entrance door rotating shaft 10 and the exit door rotating shaft 11 so as to be positioned below the entrance side top surface portion 445 or the exit side top surface portion and above the entrance door 4 or the exit door 5. It is attached. The space surrounded by the two small side radiation detectors 548, the entrance temporal upper surface portion 445, and the exit temporal upper surface portion has a size that does not interfere with the measurement subject's head. The side small radiation detector 548 has a small radiation detector on the surface facing the head of the measurement subject.

  Since this body surface monitor can measure the contamination near the subject's temporal region by the small side radiation detector 548, the contamination of the body surface of the subject can be measured more efficiently. .

[Fifth Embodiment]
FIG. 11 is a perspective view of a body surface monitor according to the fifth embodiment of the present invention. FIG. 12 is a top view of the body surface monitor according to the fifth embodiment viewed with the ceiling surface portion removed.

  In the body surface monitor according to the present embodiment, the entrance-side temporal top surface portion and the exit-side temporal top surface portion of the body surface monitor according to the first embodiment are replaced with an entrance-side temporal measurement unit 661 and an exit-side temporal measurement unit 662. Is.

  The entrance-side head measurement unit 661 is attached to the entrance door rotation shaft 10 so as to be positioned above the entrance door 4 via the head top surface lifting mechanism 447. Further, the outlet side head measuring unit 662 is attached to the outlet door rotating shaft 11 so as to be positioned above the outlet door 5.

  The entrance-side head measurement unit 661 includes a side contact inlet side portion 649 attached to the head upper surface lifting mechanism 447 and a side surface entrance side attached top surface portion 651 attached to the upper end of the side contact entrance side portion 649. ing. The outlet side head measuring unit 662 includes a side contact outlet side portion 650 attached to the head upper surface lifting mechanism 447 and a side surface outlet side attached top surface portion 652 attached to the upper end of the side contact outlet side portion 650. ing.

  The side contact inlet side portion 649 and the side contact exit side portion 650 include a temporal surface radiation detector 621 on the surface facing the head of the person to be measured 31. The top surface portion 651 with the temporal surface inlet side and the top surface portion 652 with the temporal surface outlet side include the overhead radiation detector 421 on the lower surface.

  The space surrounded by the entrance-side head measurement unit 661 and the exit-side head measurement unit 662 has a size that does not interfere with the head of the person to be measured 31.

  In this body surface monitor, the temporal surface entrance side portion 649 and the side contact exit side portion 650 that measure the contamination of the temporal region of the subject 31 are moved up and down by the head upper surface lifting mechanism 447. Move to an appropriate position according to your height. Therefore, the contamination of the temporal region of the person to be measured 31 can be measured more efficiently and accurately.

  The above description is merely an example, and the present invention is not limited to the above-described embodiments, and can be implemented in various forms. Moreover, it can also implement combining the characteristic of each embodiment.

1 is a perspective view of a body surface monitor according to a first embodiment of the present invention. It is the upper side figure which removed the ceiling surface part of the body surface monitor in 1st Embodiment which concerns on this invention, and was seen. It is a side view of the body surface monitor in 1st Embodiment based on this invention. It is a perspective view of the body surface monitor in 2nd Embodiment based on this invention. It is the upper side figure which removed the ceiling surface part of the body surface monitor in 2nd Embodiment which concerns on this invention, and was seen. It is the top view which removed the ceiling surface part of the body surface monitor of 3rd Embodiment which concerns on this invention, and was seen. FIG. 7 is a sectional view taken along arrow VII-VII in FIG. 6 of a body surface monitor according to a third embodiment of the present invention. It is a VIII-VIII arrow plane sectional view in Drawing 9 of a detector unit with a fixing mechanism of a 3rd embodiment concerning the present invention. FIG. 9 is a sectional view taken along arrow IX-IX in FIG. 8 of a detector unit with a fixing mechanism according to a third embodiment of the present invention. It is a perspective view of the body surface monitor of 4th Embodiment concerning this invention. It is a perspective view of the body surface monitor of 5th Embodiment concerning this invention. It is the upper side figure which looked at the ceiling surface part of the body surface monitor of the 5th embodiment concerning the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 4 ... Entrance door, 5 ... Outlet door, 7 ... Foot lower surface part, 9 ... Ceiling surface part, 10 ... Entrance door rotating shaft, 11 ... Outlet door rotating shaft, 21 ... Radiation detector, 31 ... Person to be measured, 101, 102 ... Detector unit, 141 ... front frame, 142 ... back frame, 241 ... entrance door unit, 242 ... central unit, 243 ... exit door unit, 271 ... foot lower surface inlet, 272 ... foot lower surface central, 273 ... foot lower surface outlet 291 ... Ceiling surface inlet, 292 ... Ceiling surface central portion, 293 ... Ceiling surface outlet, 301 ... Detector unit with fixing mechanism, 341 ... Front frame with fixing portion, 342 ... Rear frame with fixing portion, 345 ... Detector unit fixing mechanism, 346... Frame side fixing portion, 351... Fixing device, 352... Fulcrum, 353... Vertical synchronization device, 354. 445 ... Entrance temporal upper surface part, 446 ... Outlet temporal upper surface part, 447 ... Head upper surface lifting mechanism, 548 ... Small radiation detector for side surface, 621 ... Radiation detector for temporal surface, 649 ... Inlet side part on temporal surface, 650 ... a temporal surface outlet side part, 651 ... a temporal surface inlet side attached top surface part, 652 ... a temporal surface outlet side attached top surface part, 661 ... an inlet side head measuring part, 662 ... an outlet side head measuring part

Claims (6)

In the body surface monitor that measures the radiation emitted from the subject,
A lower surface of the foot with a radiation detector;
Before SL away from larger the feet surface than the spacing of the measurement subject can be positioned, and a ceiling surface portion arranged to face upwardly of the feet faces,
Support means for supporting the ceiling surface portion at a predetermined position;
A front portion provided with a radiation detector disposed between the foot lower surface portion and the ceiling surface portion ;
A back portion provided with a radiation detector disposed so as to be opposed to be separated from the front portion larger than an interval at which the subject can be positioned between the bottom surface portion of the foot and the ceiling surface portion ;
An entrance door comprising a radiation detector, wherein a part of a space surrounded by the foot lower surface portion, the ceiling surface portion , the front surface portion and the back surface portion can be rotated around an entrance door rotation axis;
A radiation detector is provided, and a space surrounded by the foot lower surface portion, the ceiling surface portion , the front surface portion, the rear surface portion, and the closed entrance door can be rotated around an exit door rotation axis to be opened and closed. An exit door,
The entrance temporal top surface portion provided with a radiation detector, which is disposed above the entrance door and lower than the ceiling surface portion and is rotatable around the entrance door rotation axis;
An outlet temporal top surface portion provided with a radiation detector, which is disposed above the exit door and positioned at a position lower than the ceiling surface portion and is rotatable about the exit door rotation axis;
A body surface monitor characterized by comprising:
A first head upper surface raising / lowering mechanism for raising and lowering the entrance temporal top surface portion along the entrance door rotation axis;
A second head upper surface raising / lowering mechanism for raising and lowering the outlet side temporal upper surface portion along the outlet door rotation axis;
The body surface monitor according to claim 1, comprising: The foot lower surface portion is divided into a foot lower surface inlet portion, a foot lower surface central portion and a foot lower surface outlet portion,
The ceiling surface portion is divided into a ceiling surface entrance portion, a ceiling surface center portion and a ceiling surface exit portion,
The foot bottom center part, the ceiling surface center part, the front part, the back part and the support means form an integrated central unit,
The foot lower surface entrance portion, the ceiling surface entrance portion and the entrance door are integrally formed to form an entrance door unit detachable from the central unit,
The foot lower surface outlet part, the ceiling surface outlet part and the outlet door are integrated to form an outlet door unit detachable from the central unit,
The body surface monitor according to claim 1, wherein the body surface monitor is provided. The support means is
A front frame having at least two cylinders extending from the bottom surface portion of the foot to the ceiling surface portion to which the front surface portion is attached;
A back frame having at least two cylinders extending from the foot bottom surface portion to the ceiling surface portion and having the back surface portion attached thereto;
Have
The body surface monitor according to any one of claims 1 to 3, wherein the front part and the back part are provided with the same detector unit.
The front frame and the back frame include a frame side fixing portion that can hold the detector unit,
The body surface monitor according to claim 4, wherein the detector unit includes a detector unit fixing mechanism that allows the detector unit to be attached to and detached from the frame side fixing portion. In a method for manufacturing a body surface monitor for measuring radiation emitted from a subject,
A step of manufacturing a ceiling surface portion, and a foot lower surface portion, a front surface portion, a rear surface portion, an entrance door, an exit door, an entrance temporal top surface portion and an exit temporal top surface portion each provided with a radiation detector;
The ceiling surface, before Symbol away from larger the feet surface than the spacing of the measurement subject can be positioned, placing opposite the above the feet surface,
Disposing the front portion between the foot lower surface portion and the ceiling surface portion ;
Disposing the back portion oppositely so as to be farther from the front portion than the space at which the subject can be positioned between the foot lower surface portion and the ceiling surface portion ;
Assembling the entrance door so that the space surrounded by the foot lower surface portion, the ceiling surface portion , the front surface portion and the back surface portion can be rotated around the entrance door rotation axis and opened and closed by the entrance door;
The exit door can be opened and closed by rotating the space surrounded by the foot lower surface portion, the ceiling surface portion , the front surface portion, the rear surface portion and the closed entrance door around the exit door rotation axis. Assembling process,
Assembling the entrance temporal top surface portion above the entrance door and lower than the ceiling surface portion so as to be rotatable around the entrance door rotation axis;
Assembling the outlet side top surface portion at a position above the exit door and lower than the ceiling surface portion so as to be rotatable around the exit door rotation axis;
A method of manufacturing a body surface monitor, comprising:

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