CN212255725U - Online measurement and detection system for intensity of charged particle beam of irradiation accelerator - Google Patents
Online measurement and detection system for intensity of charged particle beam of irradiation accelerator Download PDFInfo
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- CN212255725U CN212255725U CN202021097428.XU CN202021097428U CN212255725U CN 212255725 U CN212255725 U CN 212255725U CN 202021097428 U CN202021097428 U CN 202021097428U CN 212255725 U CN212255725 U CN 212255725U
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- magnetic ring
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Abstract
The utility model discloses an irradiation accelerator charged particle beam intensity on-line measurement detection system, including the ring flange, the ring flange has two, and the left and right sides of flange respectively opens a notch for placing signal calibration interface and signal measurement interface, has a ring channel in the ring flange, lays the magnetic ring in the ring channel, and this magnetic ring is the incomplete circular magnetic ring, cuts off one section of magnetic ring and vacates and places the hall piece, and the lead-out wire and the signal measurement interface welding of hall piece, and the signal measurement interface is installed at the side of ring flange; the utility model provides an irradiation accelerator charged particle beam intensity on-line measurement detecting system, utilize the hall piece direct measurement electron beam around the magnetic field, demarcate the size that the beam current is strong by the magnetic field that records, improve the measuring precision greatly; the devices related to the device are common devices, and the stability is guaranteed.
Description
Technical Field
The scheme relates to an irradiation accelerator charged particle beam intensity online measurement and detection system, and belongs to the technical field of accelerator equipment detection.
Background
An electron accelerator is an electromagnetic device that accelerates electrons in a vacuum using a strong electric field to achieve high energy, and the accelerated particles are electrons, and are used as a research tool for high-energy physics, and can also be widely used in other scientific and industrial fields. The industrial irradiation accelerator is an electron accelerator which utilizes high-energy electron beams to irradiate various materials and participate in industrial production processes of sterilization and disinfection and the like through chemical and biological reactions, accurate measurement of beam intensity is a general requirement, aiming at a wide parameter range of beam properties, people design and adopt a plurality of different types of equipment for measurement, and the system can monitor the beam intensity of the accelerator in real time. The latter chinese patent application "beam transformer" (publication No. 202134373U) discloses a device for monitoring electron beam intensity, but the device has several problems, one is that the ceramic ring is an insulator, which is easy to accumulate charges, and after a long time, the discharge phenomenon occurs, which affects the beam quality, and in severe cases, the vacuum of the cavity is destroyed; secondly, the beam signal itself is a very weak signal, and the signal sampled by the transformation ratio has distortion condition, which is not beneficial to data analysis.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem and the technical scheme who adopts provides an irradiation accelerator charged particle beam intensity on-line measuring detecting system, and this scheme will no longer need ceramic ring, utilizes the magnetic field around the hall piece direct measurement electron beam, marks the size of electron beam intensity through the size of the magnetic field intensity that records.
The specific technical scheme is as follows:
the magnetic ring is an incomplete circular magnetic ring, one section of the magnetic ring is cut off to be empty and is provided with a Hall piece, an outgoing line of the Hall piece is welded with the signal measurement interface, and the signal measurement interface is arranged on the side edge of the flange plate.
The above irradiation accelerator charged particle beam intensity on-line measurement and detection system, wherein: the two flanges are combined into a whole through vacuum welding and M8 screw fastening.
The utility model discloses for prior art have following beneficial effect:
the device is arranged at the tail end of the accelerating tube, all important devices are placed in the flange and cannot be directly exposed in rays, and the service life is greatly prolonged; the Hall piece is used for directly measuring the magnetic field around the electron beam, and the measured magnetic field is used for calibrating the beam current intensity, so that the measurement precision is greatly improved; the devices related to the device are common devices, and the stability is guaranteed.
Drawings
Fig. 1 is a schematic structural diagram of an irradiation accelerator charged particle beam intensity online measurement and detection system.
In the figure:
1, a Hall piece 2, a magnetic ring 3, a flange fixing position 4, a flange 5, a signal measuring interface 6, a signal calibration interface
Detailed Description
The invention is further described with reference to the following figures and examples.
The utility model provides an irradiation accelerator charged particle beam intensity on-line measuring detecting system, the aim at of this scheme: in the existing measuring method, a ceramic ring needs to be coated and vacuum welded, and the measured current has the signal distortion condition. The scheme does not need a ceramic ring, the Hall piece 1 is used for directly measuring the magnetic field around the electron beam, and the intensity of the electron beam is calibrated according to the intensity of the measured magnetic field.
Due to the structure of the Hall piece 1, the Hall piece cannot be directly arranged on the periphery of the beam; in addition, how to acquire a high-density magnetic field is also the key of the scheme. Referring to the attached drawing, the measuring device comprises two flange plates 4, wherein the two flange plates 4 are combined into a whole through vacuum welding and M8 screw fastening, an annular groove is formed in each flange plate 4, a magnetic ring 2 is arranged in each annular groove, the magnetic ring 2 is used for enhancing a magnetic field around a beam, so that the measuring precision can be effectively improved, a signal can keep certain strength, observation and reference are facilitated, the magnetic ring 2 is a non-complete circular magnetic ring 2, a section of the magnetic ring 2 is cut off to form a hollow position for placing a Hall piece 1, an outgoing line of the Hall piece 1 is welded with a signal measuring interface 5, the signal measuring interface 5 is arranged on the side edge of each flange 4, and the left side edge and the right side edge of each flange 4 are respectively provided with a notch for placing a signal calibration interface 6 and a signal measuring interface.
Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (2)
1. The utility model provides an irradiation accelerator charged particle beam intensity on-line measuring detecting system which characterized in that: the magnetic ring is an incomplete circular magnetic ring, one section of the magnetic ring is cut off to be empty and is provided with a Hall piece, an outgoing line of the Hall piece is welded with the signal measurement interface, and the signal measurement interface is arranged on the side edge of the flange plate.
2. The system for on-line measurement and detection of the beam intensity of the charged particle of the irradiation accelerator as claimed in claim 1, wherein: the two flanges are combined into a whole through vacuum welding and M8 screw fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097428.XU CN212255725U (en) | 2020-06-15 | 2020-06-15 | Online measurement and detection system for intensity of charged particle beam of irradiation accelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021097428.XU CN212255725U (en) | 2020-06-15 | 2020-06-15 | Online measurement and detection system for intensity of charged particle beam of irradiation accelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212255725U true CN212255725U (en) | 2020-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021097428.XU Active CN212255725U (en) | 2020-06-15 | 2020-06-15 | Online measurement and detection system for intensity of charged particle beam of irradiation accelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212255725U (en) |
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2020
- 2020-06-15 CN CN202021097428.XU patent/CN212255725U/en active Active
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