JPH08106997A - Standing wave type accelerating tube - Google Patents
Standing wave type accelerating tubeInfo
- Publication number
- JPH08106997A JPH08106997A JP23911094A JP23911094A JPH08106997A JP H08106997 A JPH08106997 A JP H08106997A JP 23911094 A JP23911094 A JP 23911094A JP 23911094 A JP23911094 A JP 23911094A JP H08106997 A JPH08106997 A JP H08106997A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- coupling
- accelerating
- standing wave
- wave type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Particle Accelerators (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は医療用放射線発生装置
等に使われるエネルギー切換え幅が広い定在波型加速管
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a standing wave type accelerating tube having a wide energy switching range used in medical radiation generators and the like.
【０００２】[0002]
【従来の技術】図１２は例えばＵ．Ｓ Ｐａｔａｎｔ４
３８２２０８Ｍａｙ３．１９８３と同システムの従来の
サイドカップル型定在波型加速管であり、１は加速され
る荷電粒子、２はマイクロ波電界を溜め粒子１を加速す
る電場を作る加速空洞、３は加速空洞に加わる加速電
界、４は加速空洞間にマイクロ波を伝播させる結合空
洞、５は結合空洞と加速空洞の間の孔（５’，５’’，
５’’’，５’’’’，５’’’’’も同様）、６は結
合空洞４の中でショート棒７を有する結合空洞、７は結
合空洞６をショートさせるショート棒、８は加速電界を
作るマイクロ波である。なおこの加速管の全形は中心に
荷電粒子の通過する穴のある円筒形で、加速空洞２は連
続するリング状の空洞で図上ではそのすべてを加速空洞
２として表している。2. Description of the Related Art FIG. S Pattern4
382208 May 3.1983 is a conventional side-coupled standing-wave accelerating tube of the same system, 1 is a charged particle to be accelerated, 2 is an accelerating cavity for accumulating a microwave electric field and accelerating particle 1, 3 is an accelerating cavity An accelerating electric field applied to the cavity, 4 is a coupling cavity for propagating microwaves between the accelerating cavities, 5 is a hole between the coupling cavity and the accelerating cavity (5 ', 5'',
5 ''',5'''',5''''' as well), 6 is a coupling cavity having a short rod 7 in the coupling cavity 4, 7 is a short rod for shorting the coupling cavity 6, and 8 is A microwave that creates an accelerating electric field. The entire shape of this accelerating tube is a cylinder with a hole through which charged particles pass, and the accelerating cavity 2 is a continuous ring-shaped cavity, all of which are shown as accelerating cavity 2 in the figure.
【０００３】次に動作について説明する。図１２におい
て、加速管へマイクロ波８が入ると、結合空洞４（及び
６）を介し加速空洞２へと伝播される。そのとき、加速
管の共振周波数をマイクロ波８の共振周波数が一致する
と加速空洞２に加速電界３が誘起され荷電粒子１は加速
される。加速される荷電粒子１のエネルギーを変えるに
は、加速電界３を変化させる必要があり、そのためには
マイクロ波８のパワーを変化させる必要がある。荷電粒
子を安定に加速させるには荷電粒子入口部の加速電界３
を大きく変化させることができないために、マイクロ波
８のパワーを変化させるエネルギー変化方法には限界が
ある。よって、荷電粒子入射部の加速電界を変化させず
に、それ以降のみの加速電界を変化させることができれ
ば、エネルギー変化の範囲は大きくなる。Next, the operation will be described. In FIG. 12, when the microwave 8 enters the acceleration tube, it is propagated to the acceleration cavity 2 via the coupling cavity 4 (and 6). At that time, when the resonance frequency of the accelerating tube matches the resonance frequency of the microwave 8, the accelerating electric field 3 is induced in the accelerating cavity 2 and the charged particles 1 are accelerated. In order to change the energy of the charged particles 1 to be accelerated, it is necessary to change the acceleration electric field 3, and for that purpose, it is necessary to change the power of the microwave 8. In order to stably accelerate charged particles, the accelerating electric field at the charged particle inlet 3
Cannot be changed significantly, so there is a limit to the energy changing method for changing the power of the microwave 8. Therefore, if the accelerating electric field only after that can be changed without changing the accelerating electric field of the charged particle incident portion, the range of energy change becomes large.
【０００４】従来の定在波型加速管ではそのために図に
示す結合空洞６及び６’を使っている。６にショート棒
７を入れると、この結合空洞をショートさせることによ
り、マイクロ波は結合空洞６’（６’はショート棒７’
を抜いておく）を通過する。通常の結合空洞の結合孔５
及び５’は同一であるために、その前後での加速空洞２
の加速電界３は同じであるが、結合空洞６’の前後の結
合孔５’’’’及び５’’’’’の孔の大きさを変化さ
せると、この結合空洞前後の加速空洞での加速電界は図
１３に示すように変化する。同様に６’にショート棒
７’を入れ、結合空洞７をマイクロ波が通過するように
し、６前後の結合孔５’’及び５’’’の大きさを適当
に変化させると、図１４の様な加速電界が作れる。以上
の様に、マイクロ波パワーのみならず、ショート棒の出
入れにより荷電粒子の加速エネルギーの可変範囲は大き
くできる。For this purpose, the conventional standing wave type acceleration tube uses the coupling cavities 6 and 6'shown in the figure. When the short rod 7 is put in 6, the microwave is coupled to the coupling cavity 6 '(6' is the short rod 7'by short-circuiting this coupling cavity.
Unplug). Ordinary coupling cavity coupling hole 5
And 5'are the same, so the acceleration cavity 2 before and after it is
The accelerating electric field 3 is the same, but if the size of the holes 5 ″ ″ and 5 ″ ″ ″ before and after the coupling cavity 6 ′ is changed, The accelerating electric field changes as shown in FIG. Similarly, by inserting a short rod 7 ′ into 6 ′ so that microwaves pass through the coupling cavity 7 and appropriately changing the sizes of the coupling holes 5 ″ and 5 ″ ′ before and after 6, FIG. Such an accelerating electric field can be created. As described above, not only the microwave power but also the variable range of the acceleration energy of the charged particles can be increased by moving the short rod in and out.
【０００５】なお結合孔の大きさと電界強度は大ざっぱ
な近似として （Ｅ1 ／Ｅ2 ）＝ｋ（ｂ2 ／ｂ1 ） となる。 ｋは比例乗数 Ｅ1 は結合孔の大きさｂ1 の加速空洞の電界 Ｅ2 は結合孔の大きさｂ2 の加速空洞の電界The size of the coupling hole and the electric field strength are roughly approximated by (E 1 / E 2 ) = k (b 2 / b 1 ). k is a proportional multiplier E 1 is an electric field of an accelerating cavity having a coupling hole size b 1 E 2 is an electric field of an accelerating cavity having a coupling hole size b 2
【０００６】[0006]
【発明が解決しようとする課題】従来の定在波型加速管
は以上のように構成されているので、加速電界を切り変
える加速空洞に結合空洞が２個つくことになる。２個の
うちどちらかをショートするが、完全に空洞を無くすわ
けではないために、ショートしても若干のマイクロ波は
伝播する。よって、正規の結合空洞からの伝播と混り合
うために加速電界の変化及び伝播の変化が生じ、効率良
い加速ができない。Since the conventional standing wave type accelerating tube is constructed as described above, two coupling cavities are formed in the accelerating cavity for switching the accelerating electric field. One of the two is short-circuited, but the cavity is not completely eliminated, and therefore some microwaves propagate even if they are short-circuited. Therefore, since it mixes with the propagation from the regular coupling cavity, the acceleration electric field and the propagation change, and efficient acceleration cannot be performed.
【０００７】この発明は上記のような問題点を解消する
ためになされたもので、加速電界の変化及び位相の変化
を起こさずに加速効率のよい定在波型加速管を得ること
を目的としている。The present invention has been made to solve the above problems, and an object thereof is to obtain a standing wave type accelerating tube having good acceleration efficiency without causing a change in accelerating electric field and a change in phase. There is.
【０００８】[0008]
【課題を解決するための手段】請求項１に記載の定在波
型加速管は結合空洞が加速空洞の中心軸上にないサイド
カップル型定在波型加速管において、任意の上記加速空
洞位置のみに同軸の結合空洞を備える。請求項２に記載
の定在波型加速管は加速空洞と同軸の結合空洞の片側の
結合孔を複数とした請求項第１項の同軸の結合空洞を備
える。請求項３に記載の定在波型加速管は請求項第２項
に記載の定在波型加速管において複数個の結合孔の内１
つのみを有効とする仕切板を備える。請求項４に記載の
定在波型加速管は請求項第３項に記載の定在波型加速管
において結合空洞内で仕切板を移動させたときの空洞内
面に上記仕切板のエッジによる段差を無くした。請求項
５に記載の定在波型加速管は請求項第４項に記載の定在
波型加速管において仕切板の移動による結合孔の大きさ
の違いでの共振周波数の変化を無くすために調整スペー
スを備える。請求項６に記載の定在波型加速管は請求項
第１項に記載の定在波型加速管において複数個の結合孔
を同一仕切板内にならべた。請求項７に記載の定在波型
加速管は請求項第６項に記載の定在波型加速管において
仕切板の移動による結合空洞内面に段差を無くした。請
求項８に記載の定在波型加速管は正きゅこう第７項に記
載の定在波型加速管において仕切板の移動による結合孔
の大きさの違いでの共振周波数の変化を無くすための調
整スペースを備えた。The standing wave type acceleration tube according to claim 1 is a side-coupled standing wave type acceleration tube in which the coupling cavity is not on the central axis of the acceleration cavity. Only with a coaxial coupling cavity. A standing wave type accelerating tube according to a second aspect includes the coaxial coupling cavity according to the first aspect, in which a plurality of coupling holes on one side of the coupling cavity coaxial with the acceleration cavity are provided. The standing wave type acceleration tube according to claim 3 is one of a plurality of coupling holes in the standing wave type acceleration tube according to claim 2.
It is equipped with a partition plate that makes only one effective. The standing wave type accelerating tube according to claim 4 is the standing wave type accelerating tube according to claim 3, wherein a step due to an edge of the partition plate is formed on an inner surface of the cavity when the partition plate is moved in the coupling cavity. Lost. The standing wave type accelerating tube according to claim 5 is the standing wave type accelerating tube according to claim 4, in order to eliminate the change in the resonance frequency due to the difference in the size of the coupling hole due to the movement of the partition plate. Equipped with adjustment space. In the standing wave type acceleration tube according to claim 6, in the standing wave type acceleration tube according to claim 1, a plurality of coupling holes are arranged in the same partition plate. In the standing wave type acceleration tube according to claim 7, in the standing wave type acceleration tube according to claim 6, a step is eliminated on the inner surface of the coupling cavity due to the movement of the partition plate. The standing wave type accelerating tube according to claim 8 eliminates the change in the resonance frequency due to the difference in the size of the coupling hole due to the movement of the partition plate in the standing wave type accelerating tube according to the seventh aspect. The adjustment space for
【０００９】[0009]
【作用】この発明における定在波型加速管は加速空洞に
備えた同軸の結合空洞によりマイクロ波の加速電解強度
を変化させる。In the standing wave type accelerating tube according to the present invention, the accelerating electrolytic intensity of microwaves is changed by the coaxial coupling cavity provided in the accelerating cavity.
【００１０】[0010]
実施例１．以下、この発明の一実施例を図について説明
する。図１において、９は結合空洞、１０は結合孔、図
４において、１１は結合孔をふさぐ仕切板、図５におい
て、１２は仕切板移動による真空封じのベローズであ
る。その他の番号は図１２の相当するものと同じであ
る。図２は結合空洞９の断面図、図３は加速空洞２’よ
り結合空洞９を見た図、図４は結合空洞２’’より９を
見た図である。Example 1. An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 9 is a coupling cavity, 10 is a coupling hole, 11 is a partition plate that closes the coupling hole, and 12 is a vacuum sealing bellows by moving the partition plate in FIG. Other numbers are the same as the corresponding ones in FIG. 2 is a cross-sectional view of the coupling cavity 9, FIG. 3 is a view of the coupling cavity 9 from the acceleration cavity 2 ′, and FIG. 4 is a view of 9 from the coupling cavity 2 ″.
【００１１】次に動作について説明する。エネルギー変
化を起こさせるために、結合空洞９前後での加速空洞２
の加速電界３を変化させるには、結合空洞９の結合孔を
図３、図４とすることで１つの結合空洞にて複数の加速
電界変化を起こさせることができる。（図４では２つの
結合孔であるが、３つ以上も可能である。）図３は図１
での加速空洞２’より結合空洞を見た図であり、第４は
加速空洞２’’より見た図である。図５は図４の仕切板
の移動方法を示している。仕切板１１を入れ、１１’を
抜いた場合、結合孔としては１０と１０’’を使いマイ
クロ波が伝播されるために、１０’’を適当な大きさに
選ぶことにより図１３の従来と同様の電界分布を得るこ
とができ、仕切板１１’を入れ、１１を抜いた場合、結
合孔としては１０と１０’を使いマイクロ波が伝播され
るために、１０’を適当な大きさに選ぶことにより、図
１４の従来と同様の電界分布を得ることができる。以上
のように、この方式では１つの結合空洞により電界分布
を変えることができ、また未使用の結合孔はふさぐため
に、マイクロ波の伝播は常に１通りしかないために、加
速効率の低下は生じない。また、一般的に加速空洞と同
軸の結合空洞を持った定在波型加速管では結合空洞分、
加速空洞が短くなるために、加速効率が低下するが、
１，２カ所のみに使っても加速効率の低下はほとんど無
い。Next, the operation will be described. Acceleration cavities 2 before and after the coupling cavity 9 to cause energy changes
In order to change the accelerating electric field 3 of the above, by setting the coupling holes of the coupling cavity 9 as shown in FIGS. 3 and 4, it is possible to cause a plurality of accelerating electric field changes in one coupling cavity. (In FIG. 4, there are two coupling holes, but three or more coupling holes are possible.) FIG.
4 is a view of the coupling cavity from the acceleration cavity 2 ′ in FIG. 4, and FIG. 4 is a view of the coupling cavity from the acceleration cavity 2 ″. FIG. 5 shows a method of moving the partition plate of FIG. When the partition plate 11 is inserted and 11 'is removed, 10 and 10''are used as the coupling holes and the microwave is propagated. A similar electric field distribution can be obtained, and when partition plate 11 'is inserted and 11 is removed, 10 and 10' are used as coupling holes and microwaves are propagated, so 10 'is set to an appropriate size. By selecting it, it is possible to obtain the same electric field distribution as that of the related art shown in FIG. As described above, in this method, the electric field distribution can be changed by one coupling cavity, and since unused coupling holes are blocked, there is always only one microwave propagation, and therefore the acceleration efficiency is not reduced. Does not happen. In addition, generally, in a standing wave type acceleration tube having a coupling cavity coaxial with the acceleration cavity,
Although the acceleration cavity is shortened, the acceleration efficiency is reduced,
Even if it is used only at one or two places, there is almost no decrease in acceleration efficiency.
【００１２】実施例２．図６は図５において、仕切板の
出し入れに際し、結合空洞内面に仕切板のエッジによる
段差を無くし、マイクロ波伝播時の結合空洞内に電界が
誘起されたときに、突起部での放電が生じないようにし
た構造である。Embodiment 2 FIG. FIG. 6 shows that in FIG. 5, when the partition plate is taken in and out, a step due to the edge of the partition plate is eliminated on the inner surface of the coupling cavity, and when an electric field is induced in the coupling cavity during microwave propagation, discharge occurs at the protruding portion. It is a structure that does not exist.
【００１３】実施例３．図７の１２は共振周波数を調整
するためのスペースであり、図４に示す結合孔の大きさ
が異なる穴が２個ある場合、ふさぐ穴により結合空洞の
共振周波数が変化するのを防ぐための調整スペースを設
けた。大、小の２つの結合孔がある場合、小さな結合孔
の穴をふさぐ仕切板には小さなスペースを設け、大きな
穴をふさぐ仕切板には大きなスペースを設け周波数の低
下を等しくしている。Embodiment 3. Reference numeral 12 in FIG. 7 is a space for adjusting the resonance frequency, and when there are two holes having different coupling hole sizes shown in FIG. 4, the space for preventing the resonance frequency of the coupling cavity from changing due to the blocking holes. Adjustment space is provided. When there are two large and small coupling holes, a small space is provided in the partition plate that closes the holes of the small coupling holes, and a large space is provided in the partition plate that blocks the large holes to equalize the frequency drop.
【００１４】実施例４．図８は図４の２個の結合孔を同
列に並べた場合であり、１３及び１３’は結合孔、１４
は仕切板、１５は仕切板に設けた窓である。１３’の結
合孔を使う場合は仕切板を中まで入れ、１５と１３’を
合わすことで、１３’の孔は結合空洞と加速空洞が継が
り、１３の孔は仕切板でふたをされる。また、１３の孔
を使う場合は仕切板を上げることで、１３が継がり、１
３’はふたをされる。Example 4. FIG. 8 shows a case where the two coupling holes of FIG. 4 are arranged in the same row, and 13 and 13 ′ are coupling holes and 14
Is a partition plate, and 15 is a window provided in the partition plate. When using the 13 'coupling hole, insert the partition plate to the inside, and combine 15 and 13', so that the 13 'hole is connected to the coupling cavity and the acceleration cavity, and the 13 hole is covered by the partition plate. . Also, when using 13 holes, 13 can be joined by raising the partition plate.
3'is covered.
【００１５】実施例５．図９は結合空洞内の内面に突起
を少なくするために、段差を無くした構造である。ま
た、この構造では１３の孔をふさぐための位置精度が仕
切板と結合空洞の壁との接触で決まるので、精度が高く
なる。Example 5. FIG. 9 shows a structure in which steps are eliminated in order to reduce protrusions on the inner surface of the coupling cavity. Further, in this structure, the positional accuracy for closing the 13 holes is determined by the contact between the partition plate and the wall of the coupling cavity, so that the accuracy becomes high.
【００１６】実施例６．図１０は使用する結合孔の大き
さによる共振周波数のずれを補正するためのスペース１
６を設けた構造であり、１３’の孔が１３の孔より大き
いとすると、１３’使用時は周波数が低下し、１３使用
時には増加する。そこで１３使用時のみにスペース１６
を設けることで周波数を低下させる。その結果、１３，
１３’どちらを使っても周波数は同じとなる。Example 6. FIG. 10 shows a space 1 for correcting the deviation of the resonance frequency due to the size of the coupling hole used.
6 is provided, and if the holes of 13 'are larger than the holes of 13, the frequency decreases when 13' is used and increases when 13 is used. There is space 16 only when 13 is used
The provision reduces the frequency. As a result, 13,
The frequency will be the same regardless of which 13 'is used.
【００１７】実施例７．以上はマイクロ波入口側に１個
の結合孔を設け出口側に２個の結合孔を設けた場合であ
るが、図１１の様に出口側に４個設ければ電界パターン
は４通りとなり、また、マイクロ波入口側に２個、出口
側に２個設ければ同じく電界パターンは４通りとなる。
さらに入口側２個、出口側４個では８通り、入口側４個
出口側４個では１６通りとなり、１つの結合空洞で無数
の電界パターンを作ることができる。Embodiment 7. The above is the case where one coupling hole is provided on the microwave inlet side and two coupling holes are provided on the outlet side. However, if four coupling holes are provided on the outlet side as shown in FIG. 11, there are four electric field patterns, Further, if two microwaves are provided on the microwave inlet side and two microwaves are provided on the microwave outlet side, there are four electric field patterns.
Further, the number of electric field patterns is 2 in the inlet side and 4 in the outlet side, and 8 in the inlet side and 4 in the outlet side, and 16 in the outlet side.
【００１８】[0018]
【発明の効果】以上のように、請求項１の定在波型加速
管によれば未使用結合空洞は完全に空洞を無くすことが
できるため加速性能の向上となる。請求項２、請求項３
の定在波型加速管によれば、上記に加え結合孔が複数付
き、電界パターンが複数個になっても、１つの結合空洞
で作ることができるため、安価であり構造がシンプルで
ある。請求項４の定在波型加速管によれば、上記に加え
結合空洞内の突起部での放電が生じない。請求項５の定
在波型加速管によれば、上記に加え結合空洞の共振周波
数が変化するのを防ぐ。請求項６の定在波型加速管によ
れば、請求項１の効果に加え電界パターンを複数得られ
る。請求項７の定在波型加速管によれば、請求項６の効
果に加え結合空洞の共振周波数が変化するのを防ぐ。請
求項８の定在波型加速管によれば、請求項６の効果に加
え電界パターンを複数得られる。As described above, according to the standing wave type accelerating tube of claim 1, the unused coupling cavity can be completely eliminated, so that the acceleration performance is improved. Claim 2 and claim 3
In addition to the above, the standing wave type acceleration tube of (1) is inexpensive and has a simple structure because it can be made with one coupling cavity even if it has a plurality of coupling holes and a plurality of electric field patterns. According to the standing wave type acceleration tube of claim 4, in addition to the above, electric discharge does not occur at the protrusion in the coupling cavity. According to the standing wave type acceleration tube of claim 5, in addition to the above, the resonance frequency of the coupling cavity is prevented from changing. According to the standing wave type acceleration tube of claim 6, in addition to the effect of claim 1, a plurality of electric field patterns can be obtained. According to the standing wave type acceleration tube of claim 7, in addition to the effect of claim 6, the resonance frequency of the coupling cavity is prevented from changing. According to the standing wave type acceleration tube of claim 8, in addition to the effect of claim 6, a plurality of electric field patterns can be obtained.
【図１】 この発明の一実施例による定在波型加速管全
体図である。FIG. 1 is an overall view of a standing wave type acceleration tube according to an embodiment of the present invention.
【図２】 この発明の一実施例による結合空洞部断面１
である。FIG. 2 is a sectional view 1 of a coupling cavity portion according to an embodiment of the present invention.
Is.
【図３】 この発明の一実施例による結合空洞部断面２
である。FIG. 3 is a sectional view 2 of a coupling cavity portion according to an embodiment of the present invention.
Is.
【図４】 この発明の一実施例による結合空洞部断面３
である。FIG. 4 is a sectional view of a coupling cavity portion 3 according to an embodiment of the present invention.
Is.
【図５】 この発明の他の実施例による結合空洞部断面
である。FIG. 5 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図６】 この発明の他の実施例による結合空洞部断面
である。FIG. 6 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図７】 この発明の他の実施例による結合空洞部断面
である。FIG. 7 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図８】 この発明の他の実施例による結合空洞部断面
である。FIG. 8 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図９】 この発明の他の実施例による結合空洞部断面
である。FIG. 9 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図１０】 この発明の他の実施例による結合空洞部断
面である。FIG. 10 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図１１】 この発明の他の実施例による結合空洞部断
面である。FIG. 11 is a cross-sectional view of a coupling cavity portion according to another embodiment of the present invention.
【図１２】 従来の定在波型加速管の全体図である。FIG. 12 is an overall view of a conventional standing wave type acceleration tube.
【図１３】 電界パターン図である。FIG. 13 is an electric field pattern diagram.
【図１４】 電界パターン図である。FIG. 14 is an electric field pattern diagram.
１ 荷電粒子、２ 加速空洞、３ 加速電界、４ 結合
空洞、５ 結合孔、６ショート棒付結合空洞、７ ショ
ート棒、８ マイクロ波、９ 結合空洞、１０ 結合
孔、１１ 仕切板、１２ ベローズ、１３ 結合孔、１
４ 仕切板、１５ スリット、１６ スペース。1 charged particle, 2 acceleration cavity, 3 acceleration electric field, 4 coupling cavity, 5 coupling hole, 6 coupling cavity with short rod, 7 short rod, 8 microwave, 9 coupling cavity, 10 coupling hole, 11 partition plate, 12 bellows, 13 coupling holes, 1
4 dividers, 15 slits, 16 spaces.
Claims (8)
イドカップル型定在波型加速管において、任意の上記加
速空洞位置のみに同軸の結合空洞を備えた定在波型加速
管。1. A side-coupled standing-wave accelerating tube in which the coupling cavity is not on the central axis of the accelerating cavity, the standing-wave accelerating tube having a coaxial coupling cavity only at any of the accelerating cavity positions.
孔を複数としたことを特徴とする請求項第１項に記載の
定在波型加速管。2. The standing wave type acceleration tube according to claim 1, wherein a plurality of coupling holes on one side of the coupling cavity coaxial with the acceleration cavity are provided.
る仕切板を備えたことを特徴とする請求項第２項に記載
の定在波型加速管。3. The standing wave type accelerating tube according to claim 2, further comprising a partition plate which makes only one of the plurality of coupling holes effective.
空洞内面に上記仕切板のエッジによる段差を無くしたこ
とを特徴とする請求項第３項に記載の定在波型加速管。4. The standing wave type accelerating tube according to claim 3, wherein a step due to an edge of the partition plate is eliminated on the inner surface of the cavity when the partition plate is moved in the coupling cavity.
いでの共振周波数の変化を無くすために調整スペースを
備えたことを特徴とする請求項第４項に記載の定在波型
加速管。5. The standing wave type acceleration according to claim 4, wherein an adjusting space is provided to eliminate a change in the resonance frequency due to a difference in the size of the coupling hole due to the movement of the partition plate. tube.
たことを特徴とする請求項第１項に記載の定在波型加速
管。6. The standing wave type accelerating tube according to claim 1, wherein a plurality of coupling holes are arranged in the same partition plate.
を無くしたことを特徴とする請求項第６項に記載の定在
波型加速管。7. The standing wave type accelerating tube according to claim 6, wherein a step is eliminated on the inner surface of the coupling cavity due to the movement of the partition plate.
いでの共振周波数の変化を無くすための調整スペースを
備えたことを特徴とする請求項第７項に記載の定在波型
加速管。8. The standing wave type acceleration according to claim 7, further comprising an adjusting space for eliminating a change in the resonance frequency due to a difference in the size of the coupling hole due to the movement of the partition plate. tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06239110A JP3131350B2 (en) | 1994-10-03 | 1994-10-03 | Standing wave accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06239110A JP3131350B2 (en) | 1994-10-03 | 1994-10-03 | Standing wave accelerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08106997A true JPH08106997A (en) | 1996-04-23 |
| JP3131350B2 JP3131350B2 (en) | 2001-01-31 |
Family
ID=17039954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06239110A Expired - Fee Related JP3131350B2 (en) | 1994-10-03 | 1994-10-03 | Standing wave accelerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3131350B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260332A (en) * | 2013-05-29 | 2013-08-21 | 山东新华医疗器械股份有限公司 | Cross coupling standing wave accelerating tube |
| CN107333382A (en) * | 2017-08-07 | 2017-11-07 | 沈阳东软医疗系统有限公司 | A kind of side coupled standing wave accelerator tube and standing wave accelerator |
| CN109496052A (en) * | 2018-12-28 | 2019-03-19 | 上海联影医疗科技有限公司 | A kind of accelerating tube and linear accelerator |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102109754B1 (en) | 2018-10-08 | 2020-05-13 | 김정하 | Elastic slipper |
-
1994
- 1994-10-03 JP JP06239110A patent/JP3131350B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103260332A (en) * | 2013-05-29 | 2013-08-21 | 山东新华医疗器械股份有限公司 | Cross coupling standing wave accelerating tube |
| CN107333382A (en) * | 2017-08-07 | 2017-11-07 | 沈阳东软医疗系统有限公司 | A kind of side coupled standing wave accelerator tube and standing wave accelerator |
| CN109496052A (en) * | 2018-12-28 | 2019-03-19 | 上海联影医疗科技有限公司 | A kind of accelerating tube and linear accelerator |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3131350B2 (en) | 2001-01-31 |
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