KR101350994B1 - Portable annealing equipment having an optical stimulated luminescence dosimeter - Google Patents

Abstract

The present invention relates to a small annealing device having an optically stimulated dosimeter, which is miniaturized in order to be convenient in transportation and installation. The purpose of the present invention is to withdraw a measuring element of a multipurpose dosimeter [whole body (four chips) and nanodot (one chip)] from the case of each dosimeter for annealing. The small annealing device having an optically stimulated dosimeter comprises: a main body (100) composed of at least one first mounting unit (110) which includes multiple four-chip dosimeters (50) in order to withdraw a measuring element (52) from a case (51), and at least one second mounting unit (120) which includes multiple one-chip dosimeters (60) in order to withdraw a measuring element (62) from a case (61); a cover (200) wherein at least one annealing lamp (210) is included in order to anneal the measuring element by covering the first and second mounting units (110, 120) of the main body (100), and where a cooling unit (220) is prepared to cool the annealing lamp (210); a supporting unit (300) which supports the cover (200) in between the main body (100) and the cover (200); a switch (11) which turns on/off the operating power supply of the annealing lamp; and a timer (12) which sets the operating time of the annealing lamp.

Description

Portable Annealing Equipment having an Optical Stimulated Luminescence Dosimeter

The present invention relates to an annealing equipment of a small photo-stimulation dosimeter for easily annealing a large amount of optical stimulation (OSL) dosimeter used to measure the radiation exposure of the individual radiation-related workers will be.

The amount of radiation that a human body or an object has been exposed to is called the radiation dose (radiation dose), which indicates how much radiation energy has been absorbed by human tissue. The unit of radiation absorbed dose is sivert (Sv). 1 J radiation energy is absorbed in 1 kg (1Sv = 1 / 1000mSv = 1,000,000μSv).

The dose rate (radiation dose rate) refers to the dose to be exposed per unit time, and represents the intensity to be exposed. It is usually expressed as a dose per hour, and the dose exposed at a given dose rate is proportional to the time of exposure. If exposed to the same dose rate, the dose is increased in proportion to the time of exposure.

The exposure dose is a term that indicates the amount of radiation when the human body is exposed to radiation, but the dose equivalent (Gy) is usually used, but the absorbed dose (Gy) is also used. The exposure dose from sources outside the body is the external exposure dose, and the exposure dose from sources that enter the body is called the internal exposure dose. The principle of measuring the exposure dose is based on solid crystals such as Al2O3, LiF, CaF2, and CaSO4. When a small amount of impurities such as, Mn, Tm, and Cu are mixed, these ions form a trapping center of electrons or holes in the solid crystal. This capture center captures and retains free electrons or holes generated by irradiation. The number of electrons or holes captured in this way is proportional to the amount of radiation absorbed in the solid crystal.

After the irradiation is over, the temperature of the crystals is gradually raised, and the trapped electrons (or holes) rise from the trap center level to the conduction band, allowing them to rotate in the crystal and finally recombine with other holes (or electrons). At this time, the emission is accompanied, and the radiation dose absorbed using the emission is a thermoluminescence dosimeter (TLD). The Optical Stimulated Luminescence Docimeter (OSLD) is the same as the measurement principle of a TLD, but the TLD is a method of raising the temperature of thermal energy in a way that energizes the trapped electrons to recombine. The method of giving LET (linear energy transfer) or laser layer high energy wavelength is different.

Photo-stimulation dosimeters not only have the advantage of re-measurement and re-reading, which are impossible with thermofluorescence dosimeters, but also have good chemical and mechanical strength, simple reading procedures, and excellent reproducibility. It is used to measure the exposure dose of patients, and in the United States, Japan, France, Australia and China, the next generation dosimeter is already actively used in advanced countries.

In order to reuse the measuring element in the photostimulation dosimeter, the residual dose must be zeroed. For this purpose, an annealing system is required. Accordingly, the present inventors have an optical dosimeter (OSL) dosimeter as in Korean Patent No. 10-0926775. In the process of drawing out the measuring element in the robot, the drawing is carried out by the air adsorption method so as not to be contaminated or contaminated with the measuring element while drawing at the correct position through the robot system. By aligning side by side, a large amount of measuring devices can be annealed at a time when irradiating UV light of a specific wavelength, and the radiation dosimeter automatic annealing can be reused by automatically inserting the annealed measuring devices back into the case of the photostimulus (OSL) dosimeter. The system (patent document 1) was proposed.

However, since the annealing system of Patent Document 1 and most foreign annealing equipments are large in use, four-chip dosimeters are difficult to install and transport and are used as whole body dosimeters (see FIG. 1 of Patent Document 1). The disadvantage is that it can only anneal.

In other words, dosimeters used in hospitals, research institutes, schools, etc. to establish treatment plans for patient exposure and tumor treatment, or for research purposes, are mainly used with single-dot dosimeters. Since it is not provided, it is difficult to open the device by hand and use it on the existing annealing equipment. In addition, the large-scale annealing system is difficult to apply domestically considering the size, function, and economics.

1. Republic of Korea Patent Registration No. 0926775

The present invention for solving the various problems of the annealing system of the prior art described above is convenient to move and install due to the miniaturization of the equipment and the one-touch method of measuring devices of multi-purpose dosimeters (whole body (4 chips) and nanodot (1 chip)) It is an object of the present invention to provide a small photo-stimulation dosimeter annealing equipment that can be drawn out from the case of each dosimeter and annealed.

The present invention for achieving the above object is to pull out 50 measuring elements at a time in a one-touch manner in the operation of drawing out the measuring element in the case of the photo-irradiation (OSL) dosimeter, ultraviolet light which is attached to the cover of the annealing equipment The measurement element can be annealed by irradiating light with a specific wavelength filtered by the ultraviolet wavelength through the lamp, and the annealed measurement element can be inserted into the case of the photo-stimulation (OSL) dosimeter again in a one-touch manner so that the exposure dosimeter can be reused. It is characterized by.

In this case, the present invention further includes an annealing of 50 single-dot dosimeters, including a 4-body dosimeter.

According to the present invention, the annealing conditions of the photo-stimulation dosimeter can be obtained using various lamps and filters. For example, using a 40-watt lamp and filter, annealing below 10 mrem, the target of the annealing plant, is possible.

However, 40 watt lamps have a length of 1000 mm or more, so when the equipment is manufactured with this lamp, the minimum length must be 1.3 m or more, while the size of the equipment increases, whereas the annealing equipment of the present invention has a maximum number of measuring elements that anneal 100 Although it can't be more than two, it is possible to anneal four-whole body dosimeter and one-dot nanometer dosimeter simultaneously for multi-purpose use, so it can be easily used for research or patient dose measurement in research institute, hospital or school. have.

In particular, the dedicated equipment for annealing single-chip dosimeter measuring devices has great utility value in that no dedicated equipment has been developed at home and abroad. In addition, since there is no electricity other than the lamp, the economical efficiency and the failure rate are much smaller than that of existing automated equipment, so the application value is sufficient considering the user's side.

The present invention has developed annealing equipment including lamps and filters determined for domestic and foreign applications, and considering that the equipment of developed countries is fully automatic and fully manual from the user's point of view, the annealing equipment is a one-touch measuring device. This device is designed for easy withdrawal and insertion. It is very convenient and can be easily converted to the ordering method for each use in the future, and the measuring device is arranged in a tray on the upper surface of the main body. have.

1 is a front view of an annealing equipment according to an embodiment of the present invention.
2 is a plan view of the annealing equipment according to an embodiment of the present invention.
3 is a side view showing the opening and closing structure of the annealing equipment according to an embodiment of the present invention.
FIG. 4 is a view illustrating the 'A' part of FIG. 3 and shows the inner surface of the cover 200.
FIG. 5 is a plan view of the 'B' part of FIG. 4, showing a plane of the main body 100.
6 to 8 are partial enlarged views of FIG. 5 showing the measurement device withdrawal structure of the 4-chip dosimeter 50. FIG.
9 and 10 are partially enlarged views of FIG. 5 showing the measurement device withdrawal structure of the one-chip tachometer 60. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, in which embodiments of the present invention are shown, and the exemplary structures of the accompanying drawings are only the most preferred embodiments of the present invention and are not intended to limit the present invention.

1 is a front view of the annealing equipment according to an embodiment of the present invention, Figure 2 is a plan view of the annealing equipment according to an embodiment of the present invention, Figure 3 is an opening and closing structure of the annealing equipment according to an embodiment of the present invention 4 is a side view of part 'A' of FIG. 3, which shows an inner surface of the cover 200, and FIG. 5 is a view of part 'B' of FIG. 4, showing a plane of the main body 100. will be.

1 to 5, the photo-stimulation dosimeter annealing apparatus according to the present invention includes a main body 100 which is provided to simultaneously draw out a plurality of measurement elements in a one-touch up-down manner in a dosimeter case, and an annealing lamp for performing annealing ( It includes a cover 200 is provided with a 210.

The main body 100 includes a first mounting part 110 for drawing out and inserting the measuring element 52 of the 4-chip dosimeter 50 and a drawing element for drawing and inserting the measuring element 62 of the 1-chip dosimeter 60. The second mounting part 120 is provided, and the first mounting part 110 includes a first handle 111 for manually drawing out and inserting the four-chip measuring element 52, and the second mounting part 120 is provided. And a second handle 121 for manually drawing out and inserting the one-chip measuring element 62. Here, since the four-chip dosimeter 50 and the one-chip dosimeter 60 are well known structures, descriptions and drawings of specific structures thereof will be omitted.

The main body 100 further includes an on / off switch 11 for driving the equipment, a timer 12 for setting an annealing time, and a lamp 13 for displaying an operation time alarm.

A plurality of annealing lamps 210 for annealing the measuring elements are installed on the inner surface of the cover 200, while the annealing lamps 210 are reflected to the side of the exposure dosimeter arranged on the main body 10. 211 is provided, and a cooling unit 220 such as a fan 221 is installed on the upper surface of the cover 200 to cool the heat generated by the annealing lamp 210.

In order to block the ultraviolet rays among the wavelength band irradiated by the annealing lamp 210 to perform an effective annealing, UV blocking including a sunscreen or a sunscreen coating on the surface of the annealing lamp 210 or the bottom of the cover 200 A layer is formed, and the annealing lamp 210 may include, for example, an OSRAM lamp (FQ24W / 830HO), but is not limited thereto, and includes all kinds of annealing lamps for annealing measurement elements.

As shown in FIG. 3, one side of the cover 200 may swing open and close through a hinge at one side of the main body 100, and support means such as an air cylinder 300 to support it when the cover 200 is opened. ) Is provided.

6 to 8 are partial enlarged views of FIG. 5 showing the measurement device withdrawal structure of the 4-chip dosimeter 50. In the case 51 of the 4-chip dosimeter 50 through the description of the operation of FIGS. The structure in which the chip measuring element 52 is drawn out will be embodied.

As shown in FIGS. 5 and 6, three rows of the first mounting unit 110 for mounting the four-chip dosimeter 50 are arranged, and seventeen four-chip dosimeters 50 are mounted in each row. Of course, the number of rows and the number of arrays of 4-chip dosimeters 50 in each column are not limited to the illustrated example.

Each first mounting portion 110 is provided with a pair of first handles 111 on both sides, the first handle 111 is connected to the Milpin bar 112 and the transfer bar 114. In addition, the number of pins 113 corresponding to the four-chip dosimeter 50 is installed on the mil-pin bar 112, and the number of transfer pins 115 corresponding to the four-chip dosimeter 50 is installed on the transfer bar 114. This is installed.

As shown in FIG. 5, a plurality of four-chip dosimeters 50 are uniformly seated at an arrangement plate ready position on the first mounting unit 110, and then the first handle 111 is moved to the left side as shown in FIG. 7. The milpin bar 112 and the transfer bar 114 connected to the handle 111 are simultaneously moved to the left side, and at this time, the milfin 113 installed in the milpin bar 112 has a hole 55 formed in the case 51 of the 4-chip dosimeter. (See FIG. 8), the fastening jaw 53 formed in the 4-chip measuring element 52 is pushed to release the engagement of the 4-chip measuring element 52 and the case 51 and at the same time, the transfer pin 115 is 4. It is embedded in the groove 54 of the chip measuring element 52.

Subsequently, as shown in FIG. 8, when the first handle 111 is lifted up on the drawing, the transfer bar 114 is raised together. In this case, since the transfer pins 115 are engaged with the grooves 54 of the respective measurement elements 52, the case At 51, the measuring element 52 is slide out.

On the contrary, when the first handle 111 is lowered, the measuring element 52 is inserted into the case 51, and when the first handle 111 is moved to the right side, the mil pin 113 is moved out of the case 51. The locking jaw 53 is drawn out and fastened to the case 51.

The left and right movements and the up and down movement paths of the first handle 111 may be guided by the guide holes 116 (see FIG. 8) formed in the arrangement plate of the first mounting unit 110. In the four-chip dosimeter 50, each measuring element 52 may be simultaneously taken out or inserted in each case 51.

9 and 10 are partial enlarged views of FIG. 5 showing the measurement device withdrawal structure of the one-chip tachometer 60, in the case 61 of the one-chip dosimeter 60 through the description of the operation of FIGS. The structure in which the one-chip measuring element 62 is drawn out will be specified.

As shown in FIGS. 5 and 9, the second mounting unit 120 for mounting the one-chip dosimeter 60 may allow one row in which 50 one-chip dosimeters 60 are mounted. Of course, the number of columns and the number of arrays of one-chip dosimeters 60 in each column are not limited to the illustrated example.

The second mounting part 120 is provided with a pair of second handles 121 on both sides, and the second handle 121 is connected to the milpin bar 122 and the transfer bar 124. In addition, the number of pins 123 corresponding to the one-chip dosimeter 60 is installed on the mil-pin bar 122, and the number of protrusions 125 corresponding to the one-chip dosimeter 60 is provided on the transfer bar 124. The protrusion 125 is embedded in the photo-stimulation part groove of the one-chip measuring element 52.

As shown in FIG. 9, a plurality of one-chip dosimeters 60 are uniformly seated at a position where the array plate is prepared on the second mounting unit 120, and then the second handle 121 is moved upward in the drawing as shown in FIG. 10. The milpin bar 122 and the transfer bar 124 connected to the handle 121 are moved upwards at the same time, and at this time, the mil pin 123 installed in the milpin bar 122 has a hole 63 formed in the case 61 of the one-chip dosimeter. ), The measurement element 62 slides out from the case 61 by pushing up the one-chip measurement element 62.

On the contrary, when the second handle 121 is lowered, since the protrusion 125 of the transfer bar 124 is engaged with the photo-stimulation portion of the one-chip measurement element 62, the measurement element ( 62 is inserted into the case 61.

Since the vertical movement of the second handle 121 is guided along the rectangular hole 126 formed in the array plate of the second mounting part 120, vertical movement of the second handle 121 is possible, and in this form, the plurality of one-chip dosimeters 60 Each measuring element 62 may be simultaneously withdrawn or inserted from each case 61.

Hereinafter, the overall annealing process of the photo-stimulation dosimeter annealing equipment of the present invention will be described.

As shown in FIG. 3, the 4-chip dosimeter 50 and the 1-chip dosimeter 60 are mounted on the first mounting part 110 and the second mounting part 120 on the main body 100, respectively. As shown in Figs. 6 to 10, the first chip 111 is moved to the left and the upper side, and the 4-chip measuring device 52 is taken out of the case 51, and the second handle 121 is moved upward to measure one chip. After the device 62 is taken out of the case 61, the cover 200 is closed to engage the main body 100.

Subsequently, when the annealing time is set using the timer 12 and the power is turned on using the switch 11, the annealing base annealing lamp 210 is activated to perform the anneal ring of the photo-stimulation portions of the respective measuring elements 52 and 62. Will be performed.

When the annealing ends after the set time has elapsed, the power is cut off by the switch 11, the cover 200 is opened, and the first handle 111 and the second handle 121 are returned to their respective measuring elements 52 ( 62 is inserted into and regenerated into each case 51 and 61, and all of these operations are easily performed because they are operated manually, and the probability of error occurs because the electrical equipment is used only when the annealing lamp 210 is operated. Significantly reduced compared to this automated equipment.

According to the present invention, after the annealing time is set in advance by the timer 12, the lamp 13 may be turned off when the annealing is finished, and the operation finish alarm may be caused.

It will be apparent to those skilled in the art that various modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended claims. And the scope of protection of the present invention thus includes all technical ideas which are within the scope of the claims and equivalents thereof.

11: switch 12: timer 13: lamp
50: 4-chip dosimeter 51: 4-chip case 52: 4-chip measuring element
53: engaging jaw 54: groove 55: hole
60: 1-chip dosimeter 61: 1-chip case
62: 1-chip measuring element 63: hole
100: main body 110: first mounting portion
111: first handle 112: Milpin Bar
113: milpin 114: transfer bar
115: transfer pin 116: guide hole
120: second mounting portion 121: second handle
122: Milpin Bar 123: Milpin
124: transfer bar 125: protrusion
200: cover 210: annealing lamp
211: reflection shade 220: cooling unit
221: fan 300: support means

Claims (4)

At least one first mounting unit 110 having a plurality of four-chip dosimeters 50 mounted thereon to draw the measuring element 52 from the case 51, and a case 61 having a plurality of one-chip dosimeters 60 mounted thereon. A main body 100 provided with at least one second mounting part 120 to draw out the measuring element 62 from ());
At least one annealing lamp 210 is provided on an inner surface of the main body 100 to cover the first mounting part 110 and the second mounting part 120 to anneal the measuring element, and to cool the annealing lamp 210. Cover 200 is provided with a cooling unit 220 for;
Support means (300) for supporting the cover (200) between the body (100) and the cover (200);
A switch (11) for turning on / off a movable power supply of the annealing lamp;
And a timer (12) for setting the operation time of the annealing lamp. The method of claim 1,
The first mounting portion 110,
A first handle 111 provided to move left and right and up and down on the main body 100;
A milpin bar 112 provided with a plurality of milpins 113 connected to the first handle 111 to move left and right and contacting the engaging jaw 53 of the four-chip measuring element 52 when moving to one side;
The transfer bar 114 is connected to the first handle 111 so as to be movable left, right and up and down, and has a plurality of transfer pins 115 installed in the grooves 54 of the four-chip measuring element 52. Photostimulation dosimeter annealing equipment. The method of claim 1,
The second mounting portion 120,
A second handle 121 provided to be movable upward and downward on the main body 100;
A milpin bar 122 having a plurality of milpins 123 connected to the second handle 121 so as to be movable up and down and being in contact with the one-chip measuring element 62 when moving upwardly;
The photostimulus dosimeter, which is connected to the second handle 121 and is movable up and down, and includes a transfer bar 124 provided with a plurality of protrusions 125 inserted into the photo-stimulation portion of the measuring element 62. Annealing equipment. The method of claim 1,
Photo-irradiation dosimeter annealing equipment, characterized in that the UV blocking layer is formed on the surface or the lower surface of the annealing lamp (210).

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