CN105263252A - Irradiation method of electron accelerator - Google Patents
Irradiation method of electron accelerator Download PDFInfo
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- CN105263252A CN105263252A CN201510561832.5A CN201510561832A CN105263252A CN 105263252 A CN105263252 A CN 105263252A CN 201510561832 A CN201510561832 A CN 201510561832A CN 105263252 A CN105263252 A CN 105263252A
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- electron accelerator
- irradiation
- cooling system
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Abstract
The invention discloses an irradiation method of an electron accelerator. The irradiation method comprises a step of system installation and device connection, a step of water-cooling system opening and detection, a step of information input and parameter setting, a step of system starting and self-detection, a step of electron accelerator starting and pre-heating, a step of beam-out stopping and preheating, a step of switch closing and preheating and a step of system closing and shutdown completing. The invention provides the irradiation method of the electron accelerator, an irradiation process is carried out in a shielding room, and the damage of a high-energy electron beam to a human body can be effectively prevented; preheating is carried out before beam out, beam out is then carried out, preheating is carried out after irradiation finish, the system is then closed, a favorable protection effect is exerted on the accelerator, and the service lifetime of the electron accelerator is prolonged; and through detection during starting a ready state, subsequent operation is carried out after a water-cooling system is normally opened, and the electron accelerator is ensured to be normally cooled and is difficult to damage.
Description
Technical field
The present invention relates to a kind of irradiance method of electron accelerator.
Background technology
Traditional radiation processing technology utilizes cobalt radioisotope Co60 as radiation source, cobalt-60 radiosterilize working (machining) efficiency is low, ray is not concentrated unstable, exposure time is long, irradiation cost is high, irradiation products easily occurs that radioactivity remains, along with the development of society, people are for pay attention to day by day that is healthy and environmental protection, electron accelerator irradiation process technology develops rapidly, will progressively substituting cobalt source irradiated electrons accelerator have that power is large, efficiency is high, dose stability, safe and reliable noresidue advantage.
But electron accelerator in use can face a lot of problem:
1, electron accelerator power is large, easily produces injury to human body;
2, electron accelerator irradiation processing is inconvenient;
3, electron accelerator adjusts irradiation dose inconvenience in irradiation process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of irradiance method of electron accelerator, irradiation process is carried out in shielded enclosure, can effectively avoid high-power electron beam to the injury of human body; Preheating before going out bundle, then carry out bundle, after irradiation terminates, first preheating, then shutdown system, have good protective effect to electron accelerator, improves the life-span of electron accelerator; When starting standby condition by checking, water cooling system carries out subsequent operation after normally opening again, ensure that the normal cooling of electron accelerator, not fragile.
The object of the invention is to be achieved through the following technical solutions: a kind of irradiance method of electron accelerator, comprises the following steps:
S1. electron accelerator is arranged at above shielded enclosure, bottom electron accelerator, goes out bundle device just to the irradiation window reserved with shielded enclosure top;
S2. the output of transmission motor is connected with Transmission Part, the transmission path of Transmission Part is set, make its efferent pathway by the deliver goods window of shielded enclosure through shielded enclosure, and make its transmission path immediately below irradiation window;
S3. transmission motor and the pulse modulation system of electron accelerator, cooling system, accelerated scan system and power-supply system are connected respectively to control system, control the whole irradiation course of work by control system;
S4. start the central computer of control system, and enter startup standby condition, open water cooling system, and detect water cooling system and whether open successfully:
(1) water cooling system is opened successfully, jumps to step S5;
(2) water cooling system is opened unsuccessful, checks and opens unsuccessful reason, reopen water cooling system and jump to step S5 after reparation;
S5. irradiation Data Enter and setting parameter is carried out at the central computer of control system;
Whether the parameter S6. checking the information of typing or setting is wrong;
(1) information of typing or the parameter of setting errorless, jump to step S7;
(2) information of typing or the parameter of setting wrong, the information of righting the wrong or parameter, and jump to step S6;
S7. control system starts and whether all parts work starting automatic inspection electron accelerator just produces:
(1) if all component workings are all normal, step S8 is jumped to;
(2) if the parts of operation irregularity detected, analyze its abnormal cause, after it is repaired, jump to step S8;
S8. modules all in electron accelerator are all started shooting by control system, preheating 20 minutes, carry out electron beam and go out bundle preparation;
S9. open out beam switch, get in stocks and carry out irradiation;
S10. after irradiation completes, close out beam switch, enter preheat mode, after 5 minutes, close preheating switch;
S11. close whole system, complete shutdown.
Described deliver goods window comprises feeding mouth and discharging opening.
Described step S9 comprises following sub-step:
S91. open out beam switch, electron accelerator goes out bundle automatically, and after waiting pulse recurrence rate to be achieved, control system opens transmission motor, and under the power of transmission motor, Transmission Part is started working;
S92. get in stocks at the upper goods area of shielded enclosure outer transmission members, under the drive of Transmission Part, goods enters shielded enclosure by feeding mouth;
S93. goods is under the drive of Transmission Part, immediately below irradiation window, carries out irradiation by the electron beam that bundle device continues to send that goes out bottom electron accelerator to goods;
S94. goods leaves shielded enclosure by discharging opening under the drive of Transmission Part, and unloads at the lower goods area of shielded enclosure outside.
The irradiance method of described a kind of electron accelerator, also comprise an irradiation dose set-up procedure: by the rotating speed of control system adjustment transmission motor, drive the change of Transmission Part transmission speed, the exposure time of goods in irradiated site changes and causes irradiation dose to produce respective change.
Described cooling system comprises air cooling system and water cooling system.
Described air cooling system comprises the blower fan be arranged near heat-generating electronic elements.
The irradiance method of described a kind of electron accelerator, also comprises an air cooling system and opens step: when control system detects that electronic component temperature is too high, controls blower fan and opens the electronic component cooling making correspondence.
The invention has the beneficial effects as follows: (1), irradiation process is carried out in shielded enclosure, can effectively avoid high-power electron beam to the injury of human body.
(2) preheating before going out bundle, then carry out bundle, after irradiation terminates, first preheating, then shutdown system, have good protective effect to electron accelerator, improves the life-span of electron accelerator.
(3) pass through when starting standby condition to check, water cooling system carries out subsequent operation after normally opening again, ensure that the normal cooling of electron accelerator, not fragile.
(4) air cooling system is provided with, can when control system detect that electronic component temperature is too high, the electronic component cooling making correspondence opened by the blower fan controlling air cooling system.
(5) control system carries out automatic inspection before starting, and can cross the unnecessary trouble avoiding equipment fault to bring.
(6) by the rotating speed of control system adjustment transmission motor, drive the change of Transmission Part transmission speed, the exposure time of goods in irradiated site changes and causes irradiation dose to produce respective change, the control of irradiation dose not only can be regulated by electron accelerator, also regulate by restrainting lower transmitting device, more flexibly.
Accompanying drawing explanation
Fig. 1 is method flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of irradiance method of electron accelerator, comprises the following steps:
S1. electron accelerator is arranged at above shielded enclosure, bottom electron accelerator, goes out bundle device just to the irradiation window reserved with shielded enclosure top;
S2. the output of transmission motor is connected with Transmission Part, the transmission path of Transmission Part is set, make its efferent pathway by the deliver goods window of shielded enclosure through shielded enclosure, and make its transmission path immediately below irradiation window;
S3. transmission motor and the pulse modulation system of electron accelerator, cooling system, accelerated scan system and power-supply system are connected respectively to control system, control the whole irradiation course of work by control system;
S4. start the central computer of control system, and enter startup standby condition, open water cooling system, and detect water cooling system and whether open successfully:
(1) water cooling system is opened successfully, jumps to step S5;
(2) water cooling system is opened unsuccessful, checks and opens unsuccessful reason, reopen water cooling system and jump to step S5 after reparation;
S5. irradiation Data Enter and setting parameter is carried out at the central computer of control system;
Whether the parameter S6. checking the information of typing or setting is wrong;
(1) information of typing or the parameter of setting errorless, jump to step S7;
(2) information of typing or the parameter of setting wrong, the information of righting the wrong or parameter, and jump to step S6;
S7. control system starts and whether all parts work starting automatic inspection electron accelerator just produces:
(1) if all component workings are all normal, step S8 is jumped to;
(2) if the parts of operation irregularity detected, analyze its abnormal cause, after it is repaired, jump to step S8;
S8. modules all in electron accelerator are all started shooting by control system, preheating 20 minutes, carry out electron beam and go out bundle preparation;
S9. open out beam switch, get in stocks and carry out irradiation;
S10. after irradiation completes, close out beam switch, enter preheat mode, after 5 minutes, close preheating switch;
S11. close whole system, complete shutdown.
Described deliver goods window comprises feeding mouth and discharging opening.
Described step S9 comprises following sub-step:
S91. open out beam switch, electron accelerator goes out bundle automatically, and after waiting pulse recurrence rate to be achieved, control system opens transmission motor, and under the power of transmission motor, Transmission Part is started working;
S92. get in stocks at the upper goods area of shielded enclosure outer transmission members, under the drive of Transmission Part, goods enters shielded enclosure by feeding mouth;
S93. goods is under the drive of Transmission Part, immediately below irradiation window, carries out irradiation by the electron beam that bundle device continues to send that goes out bottom electron accelerator to goods;
S94. goods leaves shielded enclosure by discharging opening under the drive of Transmission Part, and unloads at the lower goods area of shielded enclosure outside.
The irradiance method of described a kind of electron accelerator, also comprise an irradiation dose set-up procedure: by the rotating speed of control system adjustment transmission motor, drive the change of Transmission Part transmission speed, the exposure time of goods in irradiated site changes and causes irradiation dose to produce respective change.
Generally, controlling goods irradiation dose all can only by the electron beam in the unit interval of electron accelerator itself; Carry out in process at irradiation, if midway regulates the electron beam launched in the unit interval of electron accelerator itself, very inconvenient.
And in the present invention, regulate the transmission speed of Transmission Part, because the electron beam launched in the electron accelerator unit interval is certain, when transmission speed is fast, the time residing for the irradiated site of goods under irradiation window is short, and irradiation dose is little; Otherwise, when transmission speed is slow, irradiation dose is large, therefore can by the rotating speed of control system adjustment transmission motor, drive the change of Transmission Part transmission speed, the exposure time of goods in irradiated site changes and causes irradiation dose to produce respective change, by control system, accurately can reach the irradiation dose of needs.
Described cooling system comprises air cooling system and water cooling system.
Described air cooling system comprises the blower fan be arranged near heat-generating electronic elements.
The irradiance method of described a kind of electron accelerator, also comprises an air cooling system and opens step: when control system detects that electronic component temperature is too high, controls blower fan and opens the electronic component cooling making correspondence.
Claims (7)
1. an irradiance method for electron accelerator, is characterized in that: comprise the following steps:
S1. electron accelerator is arranged at above shielded enclosure, bottom electron accelerator, goes out bundle device just to the irradiation window reserved with shielded enclosure top;
S2. the output of transmission motor is connected with Transmission Part, the transmission path of Transmission Part is set, make its efferent pathway by the deliver goods window of shielded enclosure through shielded enclosure, and make its transmission path immediately below irradiation window;
S3. transmission motor and the pulse modulation system of electron accelerator, cooling system, accelerated scan system and power-supply system are connected respectively to control system, control the whole irradiation course of work by control system;
S4. start the central computer of control system, and enter startup standby condition, open water cooling system, and detect water cooling system and whether open successfully:
(1) water cooling system is opened successfully, jumps to step S5;
(2) water cooling system is opened unsuccessful, checks and opens unsuccessful reason, reopen water cooling system and jump to step S5 after reparation;
S5. irradiation Data Enter and setting parameter is carried out at the central computer of control system;
Whether the parameter S6. checking the information of typing or setting is wrong;
(1) information of typing or the parameter of setting errorless, jump to step S7;
(2) information of typing or the parameter of setting wrong, the information of righting the wrong or parameter, and jump to step S6;
S7. control system starts and whether all parts work starting automatic inspection electron accelerator just produces:
(1) if all component workings are all normal, step S8 is jumped to;
(2) if the parts of operation irregularity detected, analyze its abnormal cause, after it is repaired, jump to step S8;
S8. modules all in electron accelerator are all started shooting by control system, preheating 20 minutes, carry out electron beam and go out bundle preparation;
S9. open out beam switch, get in stocks and carry out irradiation;
S10. after irradiation completes, close out beam switch, enter preheat mode, after 5 minutes, close preheating switch;
S11. close whole system, complete shutdown.
2. the irradiance method of a kind of electron accelerator according to claim 1, is characterized in that: described deliver goods window comprises feeding mouth and discharging opening.
3. the irradiance method of a kind of electron accelerator according to claim 1, is characterized in that: described step S9 comprises following sub-step:
S91. open out beam switch, electron accelerator goes out bundle automatically, and after waiting pulse recurrence rate to be achieved, control system opens transmission motor, and under the power of transmission motor, Transmission Part is started working;
S92. get in stocks at the upper goods area of shielded enclosure outer transmission members, under the drive of Transmission Part, goods enters shielded enclosure by feeding mouth;
S93. goods is under the drive of Transmission Part, immediately below irradiation window, carries out irradiation by the electron beam that bundle device continues to send that goes out bottom electron accelerator to goods;
S94. goods leaves shielded enclosure by discharging opening under the drive of Transmission Part, and unloads at the lower goods area of shielded enclosure outside.
4. the irradiance method of a kind of electron accelerator according to claim 1, it is characterized in that: also comprise an irradiation dose set-up procedure: by the rotating speed of control system adjustment transmission motor, drive the change of Transmission Part transmission speed, the exposure time of goods in irradiated site changes and causes irradiation dose to produce respective change.
5. the irradiance method of a kind of electron accelerator according to claim 1, is characterized in that: described cooling system comprises air cooling system and water cooling system.
6. the irradiance method of a kind of electron accelerator according to claim 5, is characterized in that: described air cooling system comprises the blower fan be arranged near heat-generating electronic elements.
7. the irradiance method of a kind of electron accelerator according to claim 6, is characterized in that: also comprise an air cooling system and open step: when control system detects that electronic component temperature is too high, controls blower fan and opens the electronic component cooling making correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510561832.5A CN105263252A (en) | 2015-09-07 | 2015-09-07 | Irradiation method of electron accelerator |
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| CN201510561832.5A CN105263252A (en) | 2015-09-07 | 2015-09-07 | Irradiation method of electron accelerator |
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| CN105263252A true CN105263252A (en) | 2016-01-20 |
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| CN101315340A (en) * | 2007-05-28 | 2008-12-03 | 天津市技术物理研究所 | Processing method for raw wood irradiation quarantine |
| CN201497883U (en) * | 2009-07-29 | 2010-06-02 | 江苏达胜加速器制造有限公司 | Radiation control system of accelerator |
| CN101798747A (en) * | 2010-02-10 | 2010-08-11 | 中国科学院上海应用物理研究所 | Method for modifying polyacrylonitrile by using electron beam irradiation |
| CN101937729A (en) * | 2009-06-30 | 2011-01-05 | 同方威视技术股份有限公司 | Irradiation processing method and device of electron beam |
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| JP2005331418A (en) * | 2004-05-21 | 2005-12-02 | Nhv Corporation | Electron beam irradiating device |
| JP2007126168A (en) * | 2005-11-02 | 2007-05-24 | Mitsubishi Heavy Ind Ltd | Electron beam sterilization system |
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| CN101315340A (en) * | 2007-05-28 | 2008-12-03 | 天津市技术物理研究所 | Processing method for raw wood irradiation quarantine |
| CN101937729A (en) * | 2009-06-30 | 2011-01-05 | 同方威视技术股份有限公司 | Irradiation processing method and device of electron beam |
| CN201497883U (en) * | 2009-07-29 | 2010-06-02 | 江苏达胜加速器制造有限公司 | Radiation control system of accelerator |
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| CN101798747A (en) * | 2010-02-10 | 2010-08-11 | 中国科学院上海应用物理研究所 | Method for modifying polyacrylonitrile by using electron beam irradiation |
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Application publication date: 20160120 |
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