JP2006329978A - Radioactive chemical generator column and radioactive chemical generator - Google Patents
Radioactive chemical generator column and radioactive chemical generator Download PDFInfo
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- JP2006329978A JP2006329978A JP2006120636A JP2006120636A JP2006329978A JP 2006329978 A JP2006329978 A JP 2006329978A JP 2006120636 A JP2006120636 A JP 2006120636A JP 2006120636 A JP2006120636 A JP 2006120636A JP 2006329978 A JP2006329978 A JP 2006329978A
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本発明は親核種から娘核種を生成する放射性薬液生成ジェネレータ用カラム及び当該カラムを用いた放射性薬液生成ジェネレータに関する。 The present invention relates to a column for a radioactive chemical generation generator that generates a daughter nuclide from a parent nuclide and a radioactive chemical generation generator using the column.
従来、放射性薬液生成ジェネレータ用カラムとしては、単に両端が開口した円筒状のカラムが用いられていたに過ぎなかった。
そのため、放射性薬液生成ジェネレータとして使用する際には、図6に示す如く、カラム70の開口部に、カラム70の外径より大径で、かつ嵌合凹所を備えたゴム製栓具80を嵌合すると共に、当該ゴム製栓具80の外周部をアルミ製シールキャップ81で巻き締め封止するのが一般的であった。
Conventionally, as a column for a radiochemical solution generator, a cylindrical column having both ends opened is merely used.
Therefore, when used as a radioactive chemical generator, a rubber stopper 80 having a larger diameter than the outer diameter of the column 70 and a fitting recess is provided at the opening of the column 70 as shown in FIG. In general, the outer peripheral portion of the rubber stopper 80 is wrapped and sealed with an aluminum seal cap 81 while being fitted.
しかしながら、図6に示す如きゴム製栓具80の場合には、カラム70より大径の故に、該栓具80の外周部がフランジ状に突出する状態となる。その結果、放射性薬液生成ジェネレータとしての当該カラム70を放射線遮蔽容器に収容するためには、当該フランジ状に突出した栓具80の外径に対応した大径の収容部を放射線遮蔽容器内に形設せざるを得ず、自ずと放射線遮蔽容器の小型軽量化が困難になる、と云う問題があった。 However, in the case of the rubber stopper 80 as shown in FIG. 6, since the diameter is larger than that of the column 70, the outer peripheral portion of the stopper 80 protrudes in a flange shape. As a result, in order to accommodate the column 70 as the radioactive chemical generation generator in the radiation shielding container, a large-diameter accommodating portion corresponding to the outer diameter of the stopper 80 protruding in the flange shape is formed in the radiation shielding container. Therefore, there is a problem that it is difficult to reduce the size and weight of the radiation shielding container.
そこで、シールキャップによる巻き締めを不要とする、図7に示されるような栓具も既に報告されている(例えば、特許文献1参照)。
この栓具90は、合成樹脂から成り、その最大径部においてもカラム70の外径とほぼ同一で、内部に溶離液流通管91が一体成形により接合されていると共に、栓具90の嵌入外周部に、カラム70の内周壁に圧接されるOリング92を介在せしめてカラム70の開口部を嵌合封止するものである。
Therefore, a stopper as shown in FIG. 7 that does not require winding with a seal cap has already been reported (see, for example, Patent Document 1).
The stopper 90 is made of a synthetic resin, and the maximum diameter portion thereof is substantially the same as the outer diameter of the column 70. An eluent flow pipe 91 is joined to the inside by integral molding, and the fitting outer periphery of the stopper 90 is inserted. The opening of the column 70 is fitted and sealed by interposing an O-ring 92 pressed against the inner peripheral wall of the column 70 in the part.
しかしながら、図7に示す如き合成樹脂製栓具90の場合には、栓具90と溶離液流通管91が一体成形されているが故に、放射性薬液生成ジェネレータの吸着材の活性化のためのオートクレーブ処理時に当該溶離液流通管91が邪魔となる結果、取り扱い操作上の大きな問題となっていた。しかも、そもそも溶離液流通管91との接合工程とOリングの装着工程が必要なため、製造工程が煩雑でコスト高を免れないのが実状であった。
本発明は、上記の如き従来の問題と実状に鑑みてなされたもので、シールキャップによる巻き締めをせずとも強固な封止が可能で、しかもオートクレーブ処理時の操作性に優れると共に、製造工程が複雑化せず、低コスト化が容易な放射性薬液生成ジェネレータ用カラム及び放射性薬液生成ジェネレータを提供することを課題とする。 The present invention has been made in view of the above-described conventional problems and circumstances, and can be firmly sealed without being tightened by a seal cap, and has excellent operability during autoclaving, and a manufacturing process. It is an object of the present invention to provide a column for a radioactive chemical solution generator and a radioactive chemical solution generator that can be easily reduced in cost without being complicated.
本発明は、両端に開口部を有する円筒状のカラムであって、当該両開口部近傍の内周壁に、溶離液流通管が一体成形されていないカラム封止用栓体の外周壁に設けられた凸部、凹部又は雄ネジ部と係合若しくは螺合する凹部、凸部又は雌ネジ部が形成されている放射性薬液生成ジェネレータ用カラムにより前記課題を解決したものである。 The present invention is a cylindrical column having openings at both ends, and is provided on an outer peripheral wall of a column sealing plug body in which an eluent flow pipe is not integrally formed on an inner peripheral wall in the vicinity of both openings. The above-mentioned problems are solved by a column for a radioactive chemical generating generator in which a concave portion, a convex portion, or a female screw portion that is engaged with or screwed with a convex portion, a concave portion, or a male screw portion is formed.
また、本発明は、上記のカラムに、少なくとも親核種と親核種吸着材とを充填し、かつ両端の開口部をカラム封止用栓体で嵌合又は螺合封止した放射性薬液生成ジェネレータにより前記課題を解決したものである。 In addition, the present invention provides a radioactive chemical generation generator in which the above-described column is filled with at least a parent nuclide and a parent nuclide adsorbent, and openings at both ends are fitted or screw-sealed with plugs for column sealing. The problem is solved.
本発明カラムを用いれば、シールキャップによる巻き締めをせずとも、カラム封止用栓体との嵌合又は螺合により、カラム両端の開口部を強固に封止した放射性薬液生成ジェネレータを得ることができる。 By using the column of the present invention, it is possible to obtain a radioactive chemical generation generator in which the openings at both ends of the column are firmly sealed by fitting or screwing with a column sealing plug without tightening with a seal cap. Can do.
しかも、当該係合又は螺合するカラム封止用栓体には、溶離液流通管が一体成形されていないため、吸着材活性化のためのオートクレーブ処理時に何らの障害物も存しないので、極めて取り扱い操作性に優れる。 Moreover, since the eluent flow pipe is not integrally formed with the engaging or screwing column sealing plug, there is no obstacle during the autoclave processing for activating the adsorbent. Excellent handling operability.
更に、本発明によれば、溶離液流通管の一体成形工程やOリングの装着工程も不要なため、効率良く、また低コストで放射性薬液生成ジェネレータを提供することができる。 Furthermore, according to the present invention, since an eluent flow tube integral molding step and an O-ring mounting step are not required, a radioactive chemical generation generator can be provided efficiently and at low cost.
以下本発明の実施の形態を示す図1と共に本発明を更に説明する。 Hereinafter, the present invention will be further described with reference to FIG. 1 showing an embodiment of the present invention.
Gは放射性薬液生成ジェネレータで、カラム10の内部に装着されたフィルタ20を底部として、その上部に、アルミナ、ジルコニウム等の親核種吸着材30及び99モリブデン等の親核種40が充填されていると共に、当該カラム10の両端の開口部がカラム封止用栓体50で封止されている。 G is a radioactive chemical generator, and the filter 20 mounted inside the column 10 is used as a bottom, and the upper part is filled with a parent nuclide adsorbent 30 such as alumina and zirconium and a parent nuclide 40 such as 99 molybdenum. The openings at both ends of the column 10 are sealed with column sealing plugs 50.
カラム10は、両端に開口部を有する円筒状体から成り、その両開口部近傍の内周壁に、カラム封止用栓体50の外周壁に設けられた凸部51と係合する凹部11が形成されている。この凹部11は、カラム封止用栓体50に設けられた複数個の凸部に対応せしめて複数個の凹部としても良いが、カラム封止用栓体50の凸部51を環状凸部として、これに対応する環状凹部とするのが嵌合操作性に優れると共に、強固な嵌合効果を得る上で有利である。 The column 10 is formed of a cylindrical body having openings at both ends, and a recess 11 that engages with a protrusion 51 provided on the outer peripheral wall of the column sealing plug 50 is formed on the inner peripheral wall in the vicinity of both openings. Is formed. The recess 11 may be a plurality of recesses corresponding to the plurality of protrusions provided in the column sealing plug 50, but the protrusion 51 of the column sealing plug 50 is an annular protrusion. The annular recess corresponding to this is excellent in fitting operability and advantageous in obtaining a strong fitting effect.
60は流入用溶離液流通管、また61は流出用溶離液流通管で、カラム封止用栓体50に予め一体成形されているものではなく、吸着材30の活性化のためのオートクレーブ処理後、上下のカラム封止用栓体50にそれぞれ突き刺して取り付けられるものである。 60 is an inflow eluent circulation pipe, and 61 is an outflow eluent circulation pipe, which is not integrally formed in advance with the column sealing plug 50, but after autoclaving for activation of the adsorbent 30. The upper and lower column sealing plugs 50 are pierced and attached respectively.
尚、上記の実施の形態においては、カラム10の内周壁に、カラム封止用栓体50の凸部51と係合する凹部11を形成しているが、当該栓体50の凸部51に代えて凹部又は雄ネジ部(何れも図示省略)を形成すると共に、カラム10の凹部11に代えて、当該栓体50の凹部又は雄ネジ部に対応する凸部又は雌ネジ部(何れも図示省略)を形成しても同様な作用効果を得ることができる。 In the above embodiment, the concave portion 11 that engages with the convex portion 51 of the plug member 50 for column sealing is formed on the inner peripheral wall of the column 10. Instead, a concave portion or a male screw portion (both not shown) is formed, and instead of the concave portion 11 of the column 10, a convex portion or a female screw portion (both shown) corresponding to the concave portion or the male screw portion of the stopper 50. The same effect can be obtained even if (omitted) is formed.
また、放射性薬液生成ジェネレータGは、オートクレーブ処理後、放射線遮蔽体に収容されるが、その際、カラム10を直接マニュピレーター等で把持して収容しようとすると、カラム上部の淵部を把持することになるが、極めて不安定となり、安全に作業を行ない得ない。そのため、カラム封止用栓体50に取り付けられた流入用溶離液流通管60をマニュピレータ等で把持して収容作業を行なった方が、より安全に作業を行なうことができる。 In addition, the radioactive chemical generation generator G is accommodated in the radiation shield after the autoclave process. At this time, if the column 10 is directly gripped by a manipulator or the like, the saddle at the top of the column is gripped. However, it becomes extremely unstable and cannot be operated safely. Therefore, it is possible to perform the operation more safely by holding the inflowing eluent circulation pipe 60 attached to the column sealing plug 50 with a manipulator or the like.
しかし、当該流入用溶離液流通管60は、単にカラム封止用栓体50に突き刺して取り付けられただけなので、アルミナ等の親核種吸着材30等が充填された放射性薬液生成ジェネレータGの吊り下げ状態を安定に保持し得ないため、作業状況によっては当該流入用溶離液流通管60がカラム封止用栓体50から離脱する恐れがある。 However, since the inflowing eluent circulation pipe 60 is simply pierced and attached to the column sealing plug 50, the radioactive chemical liquid generator G filled with the parent nuclide adsorbent 30 such as alumina is suspended. Since the state cannot be stably maintained, the inflowing eluent circulation pipe 60 may be detached from the column sealing plug 50 depending on the work situation.
そこで、図2に示すような上部キャップAを、図4及び図5に示す如く、放射性薬液生成ジェネレータGに着脱自在に装着すれば、流入用溶離液流通管60がカラム封止用栓体50から離脱することを防止し得ると共に、カラム10の破損を防止することができるので、特に有利である。 Therefore, if the upper cap A as shown in FIG. 2 is detachably attached to the radioactive chemical solution generator G as shown in FIGS. 4 and 5, the inflowing eluent circulation pipe 60 is connected to the column sealing plug 50. This is particularly advantageous because it can prevent the column 10 from being broken and can prevent the column 10 from being damaged.
この上部キャップAは、図2に示す如く、半筒状本体1の側壁部に、流入用溶離液流通管60を垂直方向から水平方向に挿通案内する略L字状の切欠開口部2が形設されている。この場合、切欠開口部の水平方向部は、半筒状本体1の天壁を吹き抜き状態に一部盛り上げて形成するのが、上部キャップAによる固定力を維持しつつ、流入用溶離液流通管60の挿通案内を容易にする上で望ましい。 As shown in FIG. 2, the upper cap A has a substantially L-shaped cutout opening 2 formed on the side wall portion of the semi-cylindrical body 1 to guide the inflowing eluent circulation pipe 60 from the vertical direction to the horizontal direction. It is installed. In this case, the horizontal portion of the cutout opening is formed by partially raising the top wall of the semi-cylindrical body 1 in a blown-out state. This is desirable for facilitating insertion guidance of the tube 60.
また、上部キャップAの外側壁には、図2に示す如く、流出用溶離液流通管61を連結する弾性嵌合部3が形設されている。これにより、図4に示すように、流入用溶離液流通管60と流出用溶離液流通管61とを近接した位置に連結保持することができる。 Further, as shown in FIG. 2, an elastic fitting portion 3 for connecting the outflow eluent circulation pipe 61 is formed on the outer wall of the upper cap A. As a result, as shown in FIG. 4, the inflow eluent circulation pipe 60 and the outflow eluent circulation pipe 61 can be connected and held in close proximity.
上部キャップAの下部内壁には、更に突出部4を設け、図5に示すように、カラム10の上部外壁に設けられた突出部10aの下端と係止し得るようにするのが、上部キャップAの脱落を防止する上で望ましい。 The upper cap A is further provided with a protrusion 4 on the lower inner wall so that it can be locked to the lower end of the protrusion 10a provided on the upper outer wall of the column 10 as shown in FIG. It is desirable to prevent A from falling off.
また、図3に示すような下部キャップBを、図4及び図5に示す如く、放射性薬液生成ジェネレータGに着脱自在に装着すれば、放射線遮蔽体に収納する際や輸送時において、カラム10の破損を防止することができるので、特に有利である。 Further, if the lower cap B as shown in FIG. 3 is detachably attached to the radioactive chemical generator G as shown in FIGS. 4 and 5, the column 10 can be stored in the radiation shield or during transportation. This is particularly advantageous because it can prevent breakage.
この下部キャップBは、図3に示す如く、半筒状本体5の底部壁に、流出用溶離液流通管61を挿通案内する円孔6が形設されている。 As shown in FIG. 3, the lower cap B is formed with a circular hole 6 in the bottom wall of the semi-cylindrical main body 5 for inserting and guiding the eluent flow pipe 61 for outflow.
10:カラム
11:凹部
20:フィルタ
30:吸着材
40:親核種
50:カラム封止用栓体
51:凸部
60:流入用溶離液流通管
61:流出用溶離液流通管
A:上部キャップ
B:下部キャップ
G:放射性薬液生成ジェネレータ
10: Column 11: Recess 20: Filter 30: Adsorbent 40: Parent nuclide 50: Column sealing plug 51: Protrusion 60: Inflow eluent flow pipe 61: Outflow eluent flow pipe A: Upper cap B : Lower cap G: Radioactive chemical generator
Claims (6)
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JP2006120636A JP2006329978A (en) | 2005-04-27 | 2006-04-25 | Radioactive chemical generator column and radioactive chemical generator |
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JP2005128810 | 2005-04-27 | ||
JP2006120636A JP2006329978A (en) | 2005-04-27 | 2006-04-25 | Radioactive chemical generator column and radioactive chemical generator |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2010249815A (en) * | 2009-04-15 | 2010-11-04 | Ge-Hitachi Nuclear Energy Americas Llc | Simultaneous irradiation, elution capsule, and using method therefor |
KR20160012259A (en) * | 2014-07-23 | 2016-02-03 | 주식회사 엔바이로코리아 | The sorption column of producing both cancer diagnosis matter and cancer treatment matter and the sorption column assembly using thereof |
-
2006
- 2006-04-25 JP JP2006120636A patent/JP2006329978A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010249815A (en) * | 2009-04-15 | 2010-11-04 | Ge-Hitachi Nuclear Energy Americas Llc | Simultaneous irradiation, elution capsule, and using method therefor |
KR20160012259A (en) * | 2014-07-23 | 2016-02-03 | 주식회사 엔바이로코리아 | The sorption column of producing both cancer diagnosis matter and cancer treatment matter and the sorption column assembly using thereof |
KR101710157B1 (en) | 2014-07-23 | 2017-03-02 | 주식회사 엔바이로코리아 | The sorption column of producing both cancer diagnosis matter and cancer treatment matter and the sorption column assembly using thereof |
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