CN201349359Y - High-frequency changing-harmonic synchronous acceleration control device - Google Patents
High-frequency changing-harmonic synchronous acceleration control device Download PDFInfo
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- CN201349359Y CN201349359Y CN 200920000739 CN200920000739U CN201349359Y CN 201349359 Y CN201349359 Y CN 201349359Y CN 200920000739 CN200920000739 CN 200920000739 CN 200920000739 U CN200920000739 U CN 200920000739U CN 201349359 Y CN201349359 Y CN 201349359Y
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Abstract
The utility model relates to a high-frequency changing-harmonic synchronous acceleration control device of accelerated ions in a proton-heavy ion beam cancer-treatment synchronous accelerator, comprising a PC machine (1), a digital frequency synthesizer (2) directly connected with a dispenser (4) on the PC machine (1), a first phase detection circuit (5), a control amplifier (6) and a second phase detection circuit (14) respectively connected with the output port of the dispenser (4), wherein the control amplifier (6) is connected with a high-frequency transmitter (11) by a preamplifier (10) and a high-frequency cavity (12) is connected with the high-frequency transmitter (11); a digital-to-analog converter (3) respectively connected with a modulator (9) and the second phase detection circuit (14) wherein the modulator (9) is respectively connected with the high-frequency transmitter (11), the high-frequency cavity (12) and the second phase detection circuit (14). Thus the frequency is quickly changed and the harmonic number is changed. The structure is simple and the operation is convenient.
Description
Technical field:
The utility model relates to the method and technology field of speeding-up ion in proton-heavy-ion cancer therapy synchronous accelerator, is specifically related to a kind of high frequency and becomes the control device that harmonic wave quickens synchronously.
Background technology:
Heavy ion has the relative biological effectiveness (RBE) that depth dose distributes at (Bragg peak), lateral scattering is little, higher of reversing and low oxygen enhancement ratio characteristics such as (OER) in the bundle irradiation, making heavy ion beam control cancer becomes advanced in the world now effectively cancer radiation therapy method.At present, preliminary clinical treatment experimental study result shows that heavy ion beam controls the curative effect that cancer has highly significant, and does not have obvious toxic and side effects.
Storage rings are the most basic accelerator installations of proton-heavy-ion cancer therapy synchronously.Its operational mode is that the heavy ion beam that preaccelerator (as cyclotron) provides is injected synchronous storage rings, in synchronous storage rings that ion accumulation is strong to the stream of clinical needs, and accelerate to clinical institute energy requirement, be drawn out to then and control the cancer terminal and carry out oncotherapy.The method that improves ion energy in the known synchronous storage rings is to adopt frequency cavity to produce the high-frequency electric field speeding-up ion.The basic principle that high frequency quickens is: adopt frequency of frequency cavity generation to equate with the storage of ions cyclotron frequency or the high-frequency electric field that storage of ions cyclotron frequency subharmonic equates, during ion process frequency cavity, quickened to obtain energy by electric field, raising along with the frequency cavity frequency, energy of ions improves, and ion is accelerated.
Disclosed synchrotron in the prior art, when adopting the frequency cavity speeding-up ion, in whole accelerator, all adopt the harmonic number of a fixing ion cyclotron frequency, owing to be subjected to the restriction of frequency cavity operating frequency range, storage rings can only quicken the ion in certain energy range.Therefore synchrotron receptible injection energy of ions depend on the lower limit of frequency cavity operating frequency, the highest energy that synchrotron can quicken then depends on the upper limit.This requires the preaccelerator (adopting cyclotron or linear accelerator) of synchrotron all ion at first must be accelerated to the minimum requirements of satisfying frequency cavity, also will increase the construction cost of preaccelerator.Simultaneously, be the harmonic number of fixing owing to what adopt, so the energy range of its speeding-up ion can not expand to outside the frequency cavity operating frequency.
Summary of the invention:
The purpose of this utility model is to avoid the deficiencies in the prior art part and provides a kind of high frequency to become the control device that harmonic wave quickens synchronously, thereby efficiently solves the defective that exists in the prior art.
The purpose of this utility model can be by realizing by the following technical solutions: described high frequency becomes the control device that harmonic wave quickens synchronously, include PC (1), its characteristics are that described PC (1) is provided with Direct Digital Frequency Synthesizers (2) and digital to analog converter (3), Direct Digital Frequency Synthesizers (2) is joined with distributor (4), the delivery outlet of distributor (4) respectively with first phase detecting circuit (5), control amplifier (6) and second phase detecting circuit (14) join, control amplifier (6) joins by preamplifier (10) and high frequency transmitter (11), and frequency cavity (12) links to each other with high frequency transmitter (11); Digital to analog converter (3) joins with modulator (9) and second phase detecting circuit (14) respectively, modulator (9) joins with high frequency transmitter (11), frequency cavity (12), second phase detecting circuit (14) respectively, and second phase detecting circuit (14) joins by dc amplification circuit (13) and frequency cavity (12).
Described change harmonic wave control circuit also includes pulsqe distributor (17); Also be provided with analog to digital converter (18) and data bus interface (19) on the described PC (1).Be provided with phase-shift controller (7) and gain control circuit (8) in the described control amplifier (6), first phase detecting circuit (5) joins with phase-shift controller (7), and modulator (9) joins with gain control circuit (8).The output of described modulator (9) also joins with first phase detecting circuit (5), and modulator (9) joins with interlock circuit (15), and vacuum chamber testing circuit (16) joins with interlock circuit (15).
Described high frequency becomes the control device that harmonic wave quickens synchronously, exists following beneficial effect to be: it is by becoming corresponding control circuit, frequency conversion fast in the harmonic wave synchrotron process with high frequency, change harmonic number, satisfied the needs in the actual use, it is simple in structure, and is easy to operate.
Description of drawings:
Fig. 1 control circuit schematic diagram of the present utility model.
Embodiment:
Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:
See Fig. 1, described high frequency becomes the control device that harmonic wave quickens synchronously, include PC 1, its characteristics are that described PC 1 is provided with Direct Digital Frequency Synthesizers 2 and digital to analog converter 3, Direct Digital Frequency Synthesizers 2 is joined with distributor 4, the delivery outlet of distributor 4 joins with first phase detecting circuit 5, control amplifier 6 and second phase detecting circuit 14 respectively, and control amplifier 6 joins by preamplifier 10 and high frequency transmitter 11, and frequency cavity 12 links to each other with high frequency transmitter 11; Digital to analog converter 3 joins with the modulator 9 and second phase detecting circuit 14 respectively, modulator 9 joins with high frequency transmitter 11, frequency cavity 12, second phase detecting circuit 14 respectively, and second phase detecting circuit 14 joins by dc amplification circuit 13 and frequency cavity 12.
Described change harmonic wave control circuit also includes pulsqe distributor 17; Also be provided with analog to digital converter 18 and data bus interface 19 on the described PC 1.Be provided with phase-shift controller 7 and gain control circuit 8, the first phase detecting circuits 5 and phase-shift controller 7 in the described control amplifier 6 and join, modulator 9 joins with gain control circuit 8.The output of described modulator 9 also joins with first phase detecting circuit 5, and modulator 9 joins with interlock circuit 15, and vacuum chamber testing circuit 16 joins with interlock circuit 15.
Claims (4)
1. a high frequency becomes the control device that harmonic wave quickens synchronously, include PC (1), it is characterized in that described PC (1) is provided with Direct Digital Frequency Synthesizers (2) and digital to analog converter (3), Direct Digital Frequency Synthesizers (2) is joined with distributor (4), the delivery outlet of distributor (4) joins with first phase detecting circuit (5), control amplifier (6) and second phase detecting circuit (14) respectively, control amplifier (6) joins by preamplifier (10) and high frequency transmitter (11), and frequency cavity (12) links to each other with high frequency transmitter (11); Digital to analog converter (3) joins with modulator (9) and second phase detecting circuit (14) respectively, modulator (9) joins with high frequency transmitter (11), frequency cavity (12), second phase detecting circuit (14) respectively, and second phase detecting circuit (14) joins by dc amplification circuit (13) and frequency cavity (12).
2. high frequency according to claim 1 becomes the control device that harmonic wave quickens synchronously, and it is characterized in that: described change harmonic wave control circuit also includes pulsqe distributor (17); Also be provided with analog to digital converter (18) and data bus interface (19) on the described PC (1).
3. high frequency according to claim 1 becomes the control device that harmonic wave quickens synchronously, it is characterized in that: be provided with phase-shift controller (7) and gain control circuit (8) in the described control amplifier (6), first phase detecting circuit (5) joins with phase-shift controller (7), and modulator (9) joins with gain control circuit (8).
4. become the control device that harmonic wave quickens synchronously according to claim 1 or 3 described high frequencies, it is characterized in that: the output of described modulator (9) also joins with first phase detecting circuit (5), modulator (9) joins with interlock circuit (15), and vacuum chamber testing circuit (16) joins with interlock circuit (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920000739 CN201349359Y (en) | 2009-01-12 | 2009-01-12 | High-frequency changing-harmonic synchronous acceleration control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920000739 CN201349359Y (en) | 2009-01-12 | 2009-01-12 | High-frequency changing-harmonic synchronous acceleration control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201349359Y true CN201349359Y (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920000739 Expired - Lifetime CN201349359Y (en) | 2009-01-12 | 2009-01-12 | High-frequency changing-harmonic synchronous acceleration control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201349359Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124373A (en) * | 2017-12-18 | 2018-06-05 | 合肥中科离子医学技术装备有限公司 | A kind of devices and methods therefor for being used to control superconducting cyclotron accelerating potential |
-
2009
- 2009-01-12 CN CN 200920000739 patent/CN201349359Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108124373A (en) * | 2017-12-18 | 2018-06-05 | 合肥中科离子医学技术装备有限公司 | A kind of devices and methods therefor for being used to control superconducting cyclotron accelerating potential |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20090112 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20091118 Effective date of abandoning: 20090112 |