JP2001110591A5 - - Google Patents
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- JP2001110591A5 JP2001110591A5 JP1999288019A JP28801999A JP2001110591A5 JP 2001110591 A5 JP2001110591 A5 JP 2001110591A5 JP 1999288019 A JP1999288019 A JP 1999288019A JP 28801999 A JP28801999 A JP 28801999A JP 2001110591 A5 JP2001110591 A5 JP 2001110591A5
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- voltage
- ray
- generating means
- ray tube
- anode
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- 238000003384 imaging method Methods 0.000 description 8
- 230000001678 irradiating Effects 0.000 description 1
Description
【特許請求の範囲】
【請求項１】 交流電圧から直流電圧を生成する直流電圧発生手段と、該直流電圧発生手段によって生成された直流電圧を交流電圧に変換する交流電圧発生手段と、該発生された交流電圧をＸ線管の一対の電極に供給する高電圧を発生する高電圧発生手段と、前記直流電圧から交流電圧に変換された電圧を前記Ｘ線管の陽極電極を回転させる回転機構に供給する陽極駆動手段とを備えたＸ線高電圧装置において、
前記直流電圧発生手段は前記陽極駆動手段の動作モードに応じて出力電圧レベルを切り換える出力電圧レベル切換手段を備えたことを特徴とするＸ線高電圧装置。
【請求項２】 請求項１記載のＸ線高電圧装置と、このＸ線高電圧装置によって電源供給されるＸ線管と、被検体を介して前記Ｘ線管と対向配置され前記被検体を透過したＸ線ビームから前記被検体のＸ線像を撮像する撮像手段と、該撮像手段を前記被検体の周囲に回転あるいは移動させる回転移動手段とを備えたことを特徴とするＸ線装置。
[Claims]
1. A DC voltage generating means for generating a DC voltage from an AC voltage, and the said.Generated by DC voltage generating meansConvert DC voltage to AC voltageAC voltage generating means andTheOccurredHigh voltage that supplies AC voltage to a pair of electrodes in an X-ray tubeToOccurrenceHigh voltage generationMeans and the DC voltageFromConvert to AC voltageVoltageOf the X-ray tubeanodeSupply to the rotating mechanism that rotates the electrodesanodeIn an X-ray high-voltage device equipped with a driving means,
The DC voltage generating means is described above.YangThe output voltage level is switched according to the operation mode of the pole drive means.Output voltage level switchingAn X-ray high voltage device characterized by being provided with means.
2. The X-ray high-voltage device according to claim 1, and an X-ray tube powered by the X-ray high-voltage device.An imaging means for imaging an X-ray image of the subject from an X-ray beam that is arranged to face the X-ray tube via the subject and has passed through the subject., The imaging meansRotational moving means for rotating or moving around the subjectWhenWithTaAn X-ray device characterized by this.
（１）交流電圧から直流電圧を生成する直流電圧発生手段と、該直流電圧発生手段によって生成された直流電圧を交流電圧に変換する交流電圧発生手段と、該発生された交流電圧をＸ線管の一対の電極に供給する高電圧を発生する高電圧発生手段と、前記直流電圧から交流電圧に変換された電圧を前記Ｘ線管の陽極電極を回転させる回転機構に供給する陽極駆動手段とを備えたＸ線高電圧装置において、前記直流電圧発生手段は前記陽極駆動手段の動作モードに応じて出力電圧レベルを切り換える出力電圧レベル切換手段を備えた。 (1) and the DC voltage generating means for generating a DC voltage from the AC voltage, the DC voltage and AC voltage generating means for converting the generated DC voltage to an AC voltage by generating means, X-rays tube the generated AC voltage A high voltage generating means for generating a high voltage to be supplied to the pair of electrodes, and an anode driving means for supplying a voltage converted from the DC voltage to an AC voltage to a rotating mechanism for rotating the anode electrode of the X-ray tube. in X-ray high voltage apparatus having, the DC voltage generating means with an output voltage level switching means for switching the output voltage level in accordance with the operation mode of the positive polarity driving means.
（２）前述した（１）に記載のＸ線高電圧装置において、前記高電圧発生手段は前記陽極駆動手段の動作モードを制御する制御信号を生成する手段を備えた。 (2) In the X-ray high voltage device according to (1) described above, the high voltage generating means includes means for generating a control signal for controlling the operation mode of the anode driving means.
（３）前述した（１）もしくは（２）に記載のＸ線高電圧装置において、前記直流電圧発生手段は前記陽極電極の回転起動時にはＸ線ビームの照射時よりも高い出力電圧レベルの直流電圧を生成する。 (3) In the X-ray high voltage device according to (1) or (2) described above, the DC voltage generating means has a DC voltage having a higher output voltage level than when the X-ray beam is irradiated when the anode electrode is started to rotate. To generate.
（４）前述した（１）に記載のＸ線高電圧装置と、このＸ線高電圧装置によって電源供給されるＸ線管と、被検体を介して前記Ｘ線管と対向配置され前記被検体を透過したＸ線ビームから前記被検体のＸ線像を撮像する撮像手段と、該撮像手段を前記被検体の周囲に回転あるいは移動させる回転移動手段とを備えたＸ線装置である。 (4) The X-ray high-voltage device according to (1) described above, an X-ray tube supplied with power by the X-ray high-voltage device, and the subject arranged to face the X-ray tube via a subject. imaging means for imaging an X-ray image of the subject from the transmitted X-ray beam, an X-ray apparatus provided with a rotational movement means for rotating or moving the imaging means around the object.
前述した（１）〜（３）の手段によれば、直流電圧発生手段が陽極駆動手段の動作モードに応じた電圧レベルの直流電圧を供給する構成となっているので、例えば、Ｘ線管の一対の電極間に印加する電圧を高くしてＸ線管から高エネルギーのＸ線ビームを被検体に照射し、解像度の高いＸ線像を得る場合のように、陽極電極を所望の時間内に高速回転させるために陽極駆動手段に高い直流電圧の供給が必要となった場合であっても、Ｘ線管の起動時となる陽極電極が所望の回転数に達するまでの期間内にのみ陽極電極の駆動に必要な直流電圧を供給する構成となっているので、直流電圧発生手段を共用することができる。従って、直流電圧発生装置を小型化することができる。 According to the measure of the aforementioned (1) to (3), since the DC voltage generating means has a configuration for supplying the voltage level of the DC voltage according to the operation mode of the positive polarity driving means, e.g., X-ray tube The anode electrode is placed within a desired time, as in the case of irradiating a subject with a high-energy X-ray beam from an X-ray tube by increasing the voltage applied between the pair of electrodes to obtain a high-resolution X-ray image. in order to high speed even when it becomes necessary supply of high DC voltage to the positive polarity driving means, anode electrode serving as a startup of the X-ray tube only during the period to reach the desired rotational speed Since the configuration is such that the DC voltage required for driving the anode electrode is supplied, the DC voltage generating means can be shared. Therefore, the DC voltage generator can be miniaturized.
また、直流電圧発生手段は陽極電極が所望の回転数に達した後は、陽極電極の回転数を維持するために必要な電圧レベルと、高電圧発生手段がＸ線管の電極に印加するための交流電圧を生成するために必要となる電圧レベルとの何れか高い方の電圧を出力電圧レベルとして出力する構成となっているので、Ｘ線高電圧装置における電力損失を低減させることができる。 Further, the DC voltage generating means after the anode has reached the desired rotational speed, the voltage level required to maintain the rotational speed of the anode, since the high voltage generating means is applied to the electrodes of the X-ray tube Since the output voltage level is the higher of the voltage level required to generate the AC voltage of the above, the power loss in the X-ray high voltage device can be reduced.
前述した（４）もしくは（５）の手段によれば、交流電圧を変換し出力する直流電圧の電圧レベルを陽極駆動手段の動作モードに応じて切り換える直流電圧発生手段と、該直流電圧から交流電圧を生成し該交流電圧をＸ線管に供給する高電圧発生手段と、前記直流電圧から交流電圧を生成し前記Ｘ線管の回転機構に供給する陽極駆動手段とを、回転移動手段に搭載することによって、撮影系を被検体の周囲に回転あるいは移動させる速度を向上させることが可能となるので、Ｘ線像の撮像時間を短縮することができる。その結果、診断効率を向上させることができる。 According to the means (4) or (5) described above, the DC voltage generating means for switching the voltage level of the DC voltage that converts and outputs the AC voltage according to the operation mode of the anode driving means, and the AC voltage from the DC voltage. A high voltage generating means for generating the AC voltage and supplying the AC voltage to the X-ray tube and an anode driving means for generating the AC voltage from the DC voltage and supplying the AC voltage to the rotating mechanism of the X-ray tube are mounted on the rotating moving means. This makes it possible to improve the speed at which the imaging system is rotated or moved around the subject, so that the imaging time of the X-ray image can be shortened. As a result, the diagnostic efficiency can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28801999A JP4454079B2 (en) | 1999-10-08 | 1999-10-08 | X-ray high voltage apparatus and X-ray apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28801999A JP4454079B2 (en) | 1999-10-08 | 1999-10-08 | X-ray high voltage apparatus and X-ray apparatus |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2001110591A JP2001110591A (en) | 2001-04-20 |
| JP2001110591A5 true JP2001110591A5 (en) | 2006-11-24 |
| JP4454079B2 JP4454079B2 (en) | 2010-04-21 |
Family
ID=17724769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28801999A Expired - Fee Related JP4454079B2 (en) | 1999-10-08 | 1999-10-08 | X-ray high voltage apparatus and X-ray apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4454079B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5566303B2 (en) * | 2008-11-25 | 2014-08-06 | 株式会社日立メディコ | Mobile X-ray apparatus and rotating anode control method |
| WO2011018957A1 (en) * | 2009-08-12 | 2011-02-17 | 株式会社 日立メディコ | High voltage generating device, and x-ray ct device using the same |
| JP5891069B2 (en) * | 2012-03-01 | 2016-03-22 | 株式会社日立メディコ | X-ray equipment |
| JP2016038974A (en) * | 2014-08-06 | 2016-03-22 | オリジン電気株式会社 | High-voltage load power supply of small-capacity power receiving facility |
| JP7166789B2 (en) * | 2017-05-23 | 2022-11-08 | キヤノンメディカルシステムズ株式会社 | X-ray diagnostic system and anode rotating coil drive |
| JP7390881B2 (en) | 2019-12-11 | 2023-12-04 | 富士フイルムヘルスケア株式会社 | Power conversion equipment, X-ray imaging equipment, motor drive equipment |
-
1999
- 1999-10-08 JP JP28801999A patent/JP4454079B2/en not_active Expired - Fee Related
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