JPH0479128A - Multi-stage depressed collector for microwave tube - Google Patents
Multi-stage depressed collector for microwave tubeInfo
- Publication number
- JPH0479128A JPH0479128A JP19454790A JP19454790A JPH0479128A JP H0479128 A JPH0479128 A JP H0479128A JP 19454790 A JP19454790 A JP 19454790A JP 19454790 A JP19454790 A JP 19454790A JP H0479128 A JPH0479128 A JP H0479128A
- Authority
- JP
- Japan
- Prior art keywords
- collector
- voltage
- collector electrode
- lead wire
- electrode
- 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.)
- Pending
Links
- 230000000994 depressogenic effect Effects 0.000 title abstract 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000010894 electron beam technology Methods 0.000 abstract description 12
- 230000003993 interaction Effects 0.000 abstract description 7
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Landscapes
- Microwave Tubes (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はマイクロ波管用多段電位低下コレクタに関する
。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a multi-stage potential drop collector for a microwave tube.
ヘリックス形進行波管などのマイクロ波管の総合効率を
改善する方法のうちで、ヘリックス電圧に比べてコレク
タの電位を低く設定して動作させる方法が特に有効であ
ることは良く知られている。特に、近年へリックス形進
行波管は、進行波管を使用する装置の小形・軽量化及び
低消費電力化の要求から総合効率の改善が強く要求され
ており、このためのコレクタとして、ヘリックスなとの
相互作用部で電子ビームと回路波との相互作用を終了し
た電子の速度分布に応じて電子を捕捉する多段電位コレ
クタが採用されている。Among the methods for improving the overall efficiency of microwave tubes such as helical traveling wave tubes, it is well known that a method of operating by setting the collector potential lower than the helix voltage is particularly effective. In particular, in recent years, there has been a strong demand for helix-shaped traveling wave tubes to improve overall efficiency due to demands for smaller, lighter weight, and lower power consumption of devices that use traveling wave tubes. A multi-stage potential collector is employed that captures electrons according to the velocity distribution of the electrons that have completed the interaction between the electron beam and the circuit wave at the interaction section with the circuit wave.
次に、従来の技術をヘリックス形進行波管の２段電位低
下コレクタを例にとって説明する。Next, the conventional technology will be explained using a two-stage potential drop collector of a helical traveling wave tube as an example.
第２図は従来のマイクロ波管用２股電位低下コレクタの
一例の要部断面図である。FIG. 2 is a sectional view of a main part of an example of a conventional two-pronged potential drop collector for a microwave tube.
第２図において、１はへリックス、２は第１コレクタ電
極、３は第２コレクタ電極、４は真空外囲器、５はケー
ス、・、６はへリックスリード線、７は第１コレクタリ
ード線、８は第２コレクタリード線、１０は電子ビーム
、１１は中心軸を表わす。In Fig. 2, 1 is a helix, 2 is a first collector electrode, 3 is a second collector electrode, 4 is a vacuum envelope, 5 is a case, 6 is a helix lead wire, and 7 is a first collector lead. 8 represents the second collector lead wire, 10 represents the electron beam, and 11 represents the central axis.
第２図に示すように、この構成において、第１コレクタ
電８ｉ！２と第２コレクタ電極３には、ヘリックス１に
ヘリックスリード線６を介して印加される電圧■ｈに対
して、Ｖｈ ＞ Ｖｃｌ＞ Ｖｃ２が成立する第１コレ
クタ電極電圧■。１及び第２コレクタ電極電圧■。２が
第１コレクタリード線７と第２コレクタリード線８を介
して印加されている。へりックス１で高周波との相互作
用を終了した電子ビーム１０は、いろいろな速度成分を
有しており、この速度に応じて速度の遅い電子ビーム１
０ａは電位の高い第１コレクタ電極２に、早い電子ビー
ム１０ｂは電位の低い第２コレクタ電極３に振り分けら
れる。As shown in FIG. 2, in this configuration, the first collector voltage 8i! 2 and the second collector electrode 3, the first collector electrode voltage ■ is applied to the helix 1 via the helix lead wire 6, and the voltage ■h is such that Vh>Vcl>Vc2 holds true. 1 and 2nd collector electrode voltage ■. 2 is applied via the first collector lead wire 7 and the second collector lead wire 8. The electron beam 10 that has completed the interaction with the high frequency at the helix 1 has various velocity components, and depending on this velocity, the electron beam 1 has a slower velocity.
The electron beam 0a is distributed to the first collector electrode 2 having a high potential, and the fast electron beam 10b is distributed to the second collector electrode 3 having a low potential.
このマイクロ波管用多段電位低下コレクタに対する基本
的な要求は、コレクタ全体での消費電力をできるだけ小
さくするように各コレクタ電極の電位が決定されている
ことと、かつ、そのときマイクロ波管の高周波特性に悪
影響を及ぼす戻り電子、即ち、第２図における電子ビー
ムＩＯＣの様にコレクタ内に一度入った電子がヘリック
スｌ側に戻る電子はできる限り少ないことが望ましい。The basic requirements for this multi-stage potential reduction collector for microwave tubes are that the potential of each collector electrode is determined so as to minimize the power consumption of the entire collector, and that the high-frequency characteristics of the microwave tube It is desirable to minimize the number of return electrons that have an adverse effect on the electron beam, that is, electrons that once enter the collector and return to the helix l side, as in the electron beam IOC shown in FIG.
〔発明が解決しようとする課題〕
しかしながら、この従来のマイクロ波管用多段電位低下
コレクタでは、各コレクタ電極の電位はへソックス等の
相互作用部での電子の速度成分に依存しており、従って
、コレクタでの消費電力をできる限り少なくして、かつ
、相互作用部への戻り電子の少ない最適なコレクタ電位
は管球毎にかなり異っている。[Problems to be Solved by the Invention] However, in this conventional multi-stage potential reduction collector for microwave tubes, the potential of each collector electrode depends on the velocity component of electrons at interaction parts such as hesocks, and therefore, The optimal collector potential for reducing the power consumption in the collector as much as possible and reducing the number of return electrons to the interaction part varies considerably from one tube to another.
一方、多段電位低下コレクタに電位を与えるための電源
においては、発生する電圧は可変でなく固定の方が簡単
である。また、マイクロ波管を使用する上でも電圧を調
整する作業はわずられしく、装置のメンテナンスの面か
らも好ましくない。On the other hand, in a power supply for applying a potential to a multistage potential drop collector, it is easier to fix the generated voltage rather than making it variable. Further, even when using a microwave tube, the work of adjusting the voltage is troublesome, which is not preferable from the viewpoint of maintenance of the device.
従って、電源を含めたマイクロ波増幅装置としては、多
段電位コレクタは固定された一定の動作電圧で動作する
のが好ましく、この場合、マイクロ波管の製造のばらつ
きからあるマイクロ波管においては多段コレクタが戻り
電子に対して最適な電極電位では動作できないという問
題点があった。Therefore, as a microwave amplification device including a power supply, it is preferable that a multistage potential collector operates at a fixed constant operating voltage. However, there was a problem in that the electrode could not be operated at the optimal electrode potential with respect to the return electrons.
本発明の目的は、多段コレクタが戻り電子に対して最適
な電極電位で動作できるマイクロ波管用多段電位低下コ
レクタを提供することにある。An object of the present invention is to provide a multi-stage potential reduction collector for a microwave tube, in which the multi-stage collector can operate at an optimal electrode potential with respect to return electrons.
本発明は、各々にリード線が接続されている複数個の電
極からなるマイクロ波管用多段電位低下コレクタにおい
て、少なくとも１個の前記電極が抵抗器を介して前記リ
ード線と接続されている。The present invention provides a multi-stage voltage drop collector for a microwave tube comprising a plurality of electrodes each connected to a lead wire, in which at least one of the electrodes is connected to the lead wire via a resistor.
次に、本発明の実施例について図面を参照して説明する
。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の要部断面図である。FIG. 1 is a sectional view of a main part of an embodiment of the present invention.
第１図において、１はへソックス、２は第１コレクタ電
極、３は第２コレクタ電極、４は真空外囲器、５はケー
ス、６はヘリックスリード線、７は第１コレクタリード
線、８は第２コレクタリード線、９は抵抗器、１０は電
子ビーム、１１は中心軸を表わす。In FIG. 1, 1 is a hexock, 2 is a first collector electrode, 3 is a second collector electrode, 4 is a vacuum envelope, 5 is a case, 6 is a helix lead wire, 7 is a first collector lead wire, 8 denotes a second collector lead wire, 9 a resistor, 10 an electron beam, and 11 a central axis.
第１図に示すように、この構成において、ヘリックス１
にはヘリックスリード線６を介して電圧Ｖ、が、第１コ
レクタ電極２には第１コレクタリード線７を介して電圧
Ｖ ｃｌが、第２コレクタ電極３には抵抗器９を介して
電極■。２が第２コレクタリード線８によって印加され
ている。As shown in FIG. 1, in this configuration, helix 1
A voltage V is applied to the first collector electrode 2 through the helix lead wire 6, a voltage Vcl is applied to the first collector electrode 2 through the first collector lead 7, and a voltage Vcl is applied to the second collector electrode 3 through the resistor 9. . 2 is applied by the second collector lead 8.
このとき、この多段電位低下コレクタにおいて、へりッ
クス１への戻り電子が最も少ない第２コレクタ電極３の
電位は、電源で発生する一定の第２コレクタ電極３の電
位Ｖ（，２よりも低いとする。この場合、適当な抵抗器
９を第２コレクタ電極３と第２コレクタリード線８の間
に配置し、電源の電位ＶＣ２よりも実際の第２コレクタ
電極３に印加する電圧は抵抗器９とそこを流れる電流に
よって決まる電位低下分だけ低い電圧Ｖ’ｅ２が印加さ
れ、このとき、第２図に示した多段電位低下コレクタに
おける電子ビーム１０ｃの様な戻り電子は、第１図にお
ける電子ビーム１０ｄのように第１コレクタ電極２に入
ることになり戻り電子の少ない多段電位低下コレクタが
得られる。At this time, in this multistage potential reduction collector, the potential of the second collector electrode 3 with the least number of return electrons to the helix 1 is lower than the constant potential V(,2) of the second collector electrode 3 generated by the power supply. In this case, a suitable resistor 9 is placed between the second collector electrode 3 and the second collector lead wire 8, and the voltage actually applied to the second collector electrode 3 is lower than the potential VC2 of the power supply. A voltage V'e2 that is lower by the potential drop determined by the current flowing therein is applied, and at this time, the returning electrons such as the electron beam 10c in the multi-stage potential drop collector shown in FIG. Since the electrons enter the first collector electrode 2 as shown in 10d, a multi-stage potential drop collector with few return electrons can be obtained.
本実施例では、抵抗器９はケース５に内蔵しなが、こう
することにより抵抗器９に発生する熱の冷却を、コレク
タの冷却風等を用いることにより容易に行えるという利
点がある。In this embodiment, the resistor 9 is built into the case 5, but this has the advantage that the heat generated in the resistor 9 can be easily cooled by using collector cooling air or the like.
ここで、１４ＧＨ２帯で動作する２段電位低下コレクタ
を採用したヘリックス形進行波管を考えると、ヘリック
ス電圧■□は８ｋＶで動作電流は２００ｍＡであり、電
源から決まる第１コレクタ電極２の電位ＶＣＩは４ｋＶ
、第２コレクタ電極３の電位は２ｋＶとする。そしてこ
のとき、第１コレクタ電極２に流れる電流■ｃｌは５０
ｍＡ、第２コレクタ電極３に流れる電極工。２は１５０
ｍＡとする。ところが、実際に、このコレクタのへソッ
クス１への戻り電子が少ない最適動作条件は、第２コレ
クタ電極３が２ｋＶより１００Ｖ小さい１９００Ｖの場
合には、第２コレクタ電極３と、第２コレクタのコレク
タリード線８の間に抵抗値０ 、１５
なる抵抗器９を配置すれば、第２コレクタ電極３に実際
に印加される電位Ｖ′。２は１９００Ｖとなり、戻り電
子の最も少ない状態で動作できる。Here, considering a helical traveling wave tube that employs a two-stage potential drop collector that operates in the 14GH2 band, the helix voltage ■□ is 8 kV and the operating current is 200 mA, and the potential VCI of the first collector electrode 2 determined by the power supply is 4kV
, the potential of the second collector electrode 3 is 2 kV. At this time, the current ■cl flowing through the first collector electrode 2 is 50
mA, the electrode current flowing to the second collector electrode 3. 2 is 150
Let it be mA. However, in reality, the optimum operating condition in which fewer electrons return to the hexock 1 of the collector is that when the voltage of the second collector electrode 3 is 1900V, which is 100V lower than 2kV, the second collector electrode 3 and the collector of the second collector If a resistor 9 with a resistance value of 0 and 15 is placed between the lead wires 8, the potential V' is actually applied to the second collector electrode 3. 2 is 1900V and can operate with the least number of return electrons.
本実施例では、ヘリックス形進行波管の２段電位低下コ
レクタを例にとって説明したが、本発明が２段以上の多
段電位低下コレクタに適用できることは明らかであり、
また、このとき抵抗器は１つの電極でなく、複数個の電
極とリード線の間に配置することも同様の効果が期待で
きることは明らかである。また、抵抗器を可変抵抗器と
することも容易に類推できる。In this embodiment, a two-stage potential drop collector of a helical traveling wave tube was explained as an example, but it is clear that the present invention can be applied to a multi-stage potential drop collector having two or more stages.
Furthermore, it is clear that the same effect can be expected by arranging the resistor between a plurality of electrodes and the lead wire instead of one electrode. Further, it can be easily inferred that the resistor is a variable resistor.
以上説明したように本発明は、マイクロ波管用多段電位
低下コレクタにおいて、少なくとも１つの電極とリード
線の間に抵抗器を配置することにより、コレクタへの印
加電圧が固定の電源を使用した場合でも、多段電位低下
コレクタが最適条件で動作するコレクタ電位で動作する
よう抵抗器の値を選ぶことにより、相互作用部への戻り
電子の少ない多段電位低下コレクタが得られるという効
果がある。As explained above, the present invention provides a multi-stage potential reduction collector for a microwave tube, by arranging a resistor between at least one electrode and the lead wire, even when using a power supply with a fixed voltage applied to the collector. By selecting the values of the resistors so that the multi-stage potential-dropping collector operates at a collector potential at which the multi-stage potential-dropping collector operates under optimal conditions, it is possible to obtain a multi-stage potential-dropping collector with fewer electrons returning to the interaction part.
第１図は本発明の一実施例の要部断面図、第２図は従来
のマイクロ波管用２股電位低下コレクタの一例の要部断
面図である。
１・・・ヘリックス、２・・・第１コレクタ電極、３・
・第２コレクタ電極、４・・・真空外囲器、５・・・ケ
ース、６・・・ヘリックスリード線、７・・・第１コレ
クタリード線、８・・・第２コレクタリード線、９・・
・抵抗器、１０・・・電子ビーム、１１・・・中心軸。FIG. 1 is a sectional view of a main part of an embodiment of the present invention, and FIG. 2 is a sectional view of a main part of an example of a conventional bifurcated potential drop collector for a microwave tube. 1... Helix, 2... First collector electrode, 3...
- Second collector electrode, 4... Vacuum envelope, 5... Case, 6... Helix lead wire, 7... First collector lead wire, 8... Second collector lead wire, 9・・・
・Resistor, 10... Electron beam, 11... Central axis.
Claims (1)
るマイクロ波管用多段電位低下コレクタにおいて、少な
くとも１個の前記電極が抵抗器を介して前記リード線と
接続されていることを特徴とするマイクロ波管用多段電
位低下コレクタ。A multi-stage potential drop collector for a microwave tube consisting of a plurality of electrodes each connected to a lead wire, characterized in that at least one of the electrodes is connected to the lead wire via a resistor. Multistage potential drop collector for wave tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19454790A JPH0479128A (en) | 1990-07-23 | 1990-07-23 | Multi-stage depressed collector for microwave tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19454790A JPH0479128A (en) | 1990-07-23 | 1990-07-23 | Multi-stage depressed collector for microwave tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0479128A true JPH0479128A (en) | 1992-03-12 |
Family
ID=16326353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19454790A Pending JPH0479128A (en) | 1990-07-23 | 1990-07-23 | Multi-stage depressed collector for microwave tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0479128A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389854A (en) * | 1992-07-21 | 1995-02-14 | Litton Systems, Inc. | Collector ion expeller |
| WO2004097886A3 (en) * | 2003-04-25 | 2005-07-28 | Cxr Ltd | X-ray tubes |
| US7349525B2 (en) | 2003-04-25 | 2008-03-25 | Rapiscan Systems, Inc. | X-ray sources |
| US7512215B2 (en) | 2003-04-25 | 2009-03-31 | Rapiscan Systems, Inc. | X-ray tube electron sources |
| CN102103960A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院电子学研究所 | Outer cylinder side opening type multistage depressed collector component and manufacturing method thereof |
| US8824637B2 (en) | 2008-09-13 | 2014-09-02 | Rapiscan Systems, Inc. | X-ray tubes |
| US9001973B2 (en) | 2003-04-25 | 2015-04-07 | Rapiscan Systems, Inc. | X-ray sources |
| US9208988B2 (en) | 2005-10-25 | 2015-12-08 | Rapiscan Systems, Inc. | Graphite backscattered electron shield for use in an X-ray tube |
| US9263225B2 (en) | 2008-07-15 | 2016-02-16 | Rapiscan Systems, Inc. | X-ray tube anode comprising a coolant tube |
| US9420677B2 (en) | 2009-01-28 | 2016-08-16 | Rapiscan Systems, Inc. | X-ray tube electron sources |
| US9726619B2 (en) | 2005-10-25 | 2017-08-08 | Rapiscan Systems, Inc. | Optimization of the source firing pattern for X-ray scanning systems |
| US10483077B2 (en) | 2003-04-25 | 2019-11-19 | Rapiscan Systems, Inc. | X-ray sources having reduced electron scattering |
| US10585206B2 (en) | 2017-09-06 | 2020-03-10 | Rapiscan Systems, Inc. | Method and system for a multi-view scanner |
| US10901112B2 (en) | 2003-04-25 | 2021-01-26 | Rapiscan Systems, Inc. | X-ray scanning system with stationary x-ray sources |
| US10976271B2 (en) | 2005-12-16 | 2021-04-13 | Rapiscan Systems, Inc. | Stationary tomographic X-ray imaging systems for automatically sorting objects based on generated tomographic images |
| US11212902B2 (en) | 2020-02-25 | 2021-12-28 | Rapiscan Systems, Inc. | Multiplexed drive systems and methods for a multi-emitter X-ray source |
-
1990
- 1990-07-23 JP JP19454790A patent/JPH0479128A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389854A (en) * | 1992-07-21 | 1995-02-14 | Litton Systems, Inc. | Collector ion expeller |
| US10483077B2 (en) | 2003-04-25 | 2019-11-19 | Rapiscan Systems, Inc. | X-ray sources having reduced electron scattering |
| WO2004097886A3 (en) * | 2003-04-25 | 2005-07-28 | Cxr Ltd | X-ray tubes |
| GB2417822A (en) * | 2003-04-25 | 2006-03-08 | Cxr Ltd | X-ray tubes |
| US7349525B2 (en) | 2003-04-25 | 2008-03-25 | Rapiscan Systems, Inc. | X-ray sources |
| US7505563B2 (en) | 2003-04-25 | 2009-03-17 | Rapiscan Systems, Inc. | X-ray sources |
| US7512215B2 (en) | 2003-04-25 | 2009-03-31 | Rapiscan Systems, Inc. | X-ray tube electron sources |
| US7903789B2 (en) | 2003-04-25 | 2011-03-08 | Rapiscan Systems, Inc. | X-ray tube electron sources |
| US11796711B2 (en) | 2003-04-25 | 2023-10-24 | Rapiscan Systems, Inc. | Modular CT scanning system |
| US10901112B2 (en) | 2003-04-25 | 2021-01-26 | Rapiscan Systems, Inc. | X-ray scanning system with stationary x-ray sources |
| US9001973B2 (en) | 2003-04-25 | 2015-04-07 | Rapiscan Systems, Inc. | X-ray sources |
| US9208988B2 (en) | 2005-10-25 | 2015-12-08 | Rapiscan Systems, Inc. | Graphite backscattered electron shield for use in an X-ray tube |
| US9726619B2 (en) | 2005-10-25 | 2017-08-08 | Rapiscan Systems, Inc. | Optimization of the source firing pattern for X-ray scanning systems |
| US10976271B2 (en) | 2005-12-16 | 2021-04-13 | Rapiscan Systems, Inc. | Stationary tomographic X-ray imaging systems for automatically sorting objects based on generated tomographic images |
| US9263225B2 (en) | 2008-07-15 | 2016-02-16 | Rapiscan Systems, Inc. | X-ray tube anode comprising a coolant tube |
| US8824637B2 (en) | 2008-09-13 | 2014-09-02 | Rapiscan Systems, Inc. | X-ray tubes |
| US9420677B2 (en) | 2009-01-28 | 2016-08-16 | Rapiscan Systems, Inc. | X-ray tube electron sources |
| CN102103960A (en) * | 2009-12-16 | 2011-06-22 | 中国科学院电子学研究所 | Outer cylinder side opening type multistage depressed collector component and manufacturing method thereof |
| US10585206B2 (en) | 2017-09-06 | 2020-03-10 | Rapiscan Systems, Inc. | Method and system for a multi-view scanner |
| US11212902B2 (en) | 2020-02-25 | 2021-12-28 | Rapiscan Systems, Inc. | Multiplexed drive systems and methods for a multi-emitter X-ray source |
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