CN218099630U - Wide-range digital composite ionization chamber detector - Google Patents
Wide-range digital composite ionization chamber detector Download PDFInfo
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- CN218099630U CN218099630U CN202222123597.1U CN202222123597U CN218099630U CN 218099630 U CN218099630 U CN 218099630U CN 202222123597 U CN202222123597 U CN 202222123597U CN 218099630 U CN218099630 U CN 218099630U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
The utility model discloses a wide-range digital composite ionization chamber detector, which comprises a first collector, wherein an inner high-voltage electrode is coaxially sleeved outside the first collector, and the bottom end of the first collector is positioned in the inner high-voltage electrode and is not contacted with the bottom end of the inner high-voltage electrode; the inner high-voltage electrode is sequentially and coaxially sleeved with a second collector and an outer high-voltage electrode, the second collector comprises a cylinder body and at least three output shafts arranged at the top end of the cylinder body, and the output shafts are arranged in a circular array with the first collector as a circle center. The first collector and the second collector are both connected to an electronic circuit device; the electronic circuit device is used for receiving the high-dose ionization signal and the low-dose ionization signal and carrying out data processing on the signals to obtain an ionizing radiation value of the environment to be measured. The utility model provides a less problem of current ionization chamber detector measuring range.
Description
Technical Field
The utility model belongs to the technical field of the ionization chamber, concretely relates to compound ionization chamber detector of wide range digit.
Background
An ionization chamber is a detector that measures ionizing radiation using the ionizing effect of the ionizing radiation, and is composed of electrodes at different potentials and a medium therebetween. Ionizing radiation generates ionizing ion pairs in the medium, and under the action of an electric field, positive and negative ions drift to the negative electrode and the positive electrode respectively to form ionizing current. Since the ionization current is proportional to the intensity of the radiation, measuring this current yields the intensity of the ionizing radiation. A single collector is arranged in a conventional ionization chamber, the measurement range of the ionization chamber is small, if the lower measurement limit is ensured, the upper limit cannot be ensured, and vice versa.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compound ionization chamber detector of wide range digit to solve the less problem of current ionization chamber detector measuring range.
The utility model adopts the following technical scheme: a wide-range digital composite ionization chamber detector comprises a first collector, wherein the first collector is a slender rod, an inner high-voltage electrode is coaxially sleeved outside the first collector, the inner high-voltage electrode is a hollow cylinder, and the bottom end of the first collector is positioned in the inner high-voltage electrode and is not in contact with the bottom end of the inner high-voltage electrode; the second collector and the outer high-voltage electrode are sequentially coaxially sleeved outside the inner high-voltage electrode, the second collector comprises a cylinder and at least three output shafts arranged at the top end of the cylinder, and the output shafts are arranged in a circular array with the first collector as the center of a circle;
the outer high-voltage electrode is a hollow cylinder, the top end of the first collector penetrates out of the top end of the outer high-voltage electrode, the top end of the inner high-voltage electrode is connected with the top end of the outer high-voltage electrode, the top end of the cylinder is not in contact with the top end of the outer high-voltage electrode, and each output shaft penetrates out of the top end of the outer high-voltage electrode; the bottom end of the inner high-voltage pole is positioned in the cylinder body and is not contacted with the bottom end of the cylinder body, and the bottom end of the cylinder body is positioned in the outer high-voltage pole and is not contacted with the bottom end of the outer high-voltage pole;
the first collector and the second collector are both connected to an electronic circuit device; the first collector is used for collecting high-dose ionization signals in cooperation with the inner high-voltage electrode, and the second collector is used for collecting low-dose ionization signals in cooperation with the outer high-voltage electrode; the electronic circuit device is used for receiving the high-dose ionization signal and the low-dose ionization signal and carrying out data processing on the signals to obtain an ionizing radiation value of the environment to be measured.
Furthermore, insulators are sleeved outside the output shafts and at the intersection of the output shafts and the outer high-voltage electrode, and insulators are arranged outside the first collector and at the intersection of the first collector and the outer high-voltage electrode.
Further, each output shaft converges to a total output shaft.
Furthermore, the electronic circuit device comprises a shell, a PCB assembly is arranged in the shell, and a socket is arranged at the top of the shell.
The beneficial effects of the utility model are that: two collectors are coaxially arranged in the ionization chamber, an inner high-voltage electrode is additionally arranged in the outer high-voltage electrode, and ionization signals with high and low doses can be collected simultaneously. The ionization chamber can be used for wide-range measurement compared with the ionization chamber only provided with one collector under the condition that the internal gas volume of the ionization chamber is the same, namely, the measurement of high range and low range can be completed by using one detector, the measurement range is improved, the measurement capacity of high range and low range is realized, and the upper limit and the lower limit can be ensured simultaneously.
Drawings
Fig. 1 is a schematic structural view of the wide-range digital composite ionization chamber detector of the present invention.
The high-voltage power supply comprises an outer high-voltage pole 1, a second collector 2, a cylinder 21, an output shaft 22, an inner high-voltage pole 3, a first collector 4, an insulator 5, a shell 6, a PCB assembly 7 and a socket 8.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a wide-range digital composite ionization chamber detector, as shown in figure 1, comprising a first collector 4, wherein the first collector 4 is a slender rod, an inner high voltage pole 3 is coaxially sleeved outside the first collector 4, the inner high voltage pole 3 is a hollow cylinder, and the bottom end of the first collector 4 is positioned in the inner high voltage pole 3 and is not contacted with the bottom end of the inner high voltage pole 3;
the inner high-voltage electrode 3 is sequentially and coaxially sleeved with a second collector 2 and an outer high-voltage electrode 1, the second collector 2 comprises a cylinder 21 and three output shafts 22 arranged at the top end of the cylinder 21, and the three output shafts 22 are arranged in a circular array with the first collector 4 as the center of a circle;
the outer high-voltage electrode 1 is a hollow cylinder, the top end of the first collector 4 penetrates out from the top end of the outer high-voltage electrode 1, the top end of the inner high-voltage electrode 3 is connected with the top end of the outer high-voltage electrode 1, the top end of the cylinder 21 is not in contact with the top end of the outer high-voltage electrode 1, and the output shafts 22 penetrate out from the top end of the outer high-voltage electrode 1.
The bottom end of the inner high voltage pole 3 is positioned in the cylinder body 21 and is not contacted with the bottom end of the cylinder body 21, and the bottom end of the cylinder body 21 is positioned in the outer high voltage pole 1 and is not contacted with the bottom end of the outer high voltage pole 1.
Said first collector 4 and said second collector 2 are both connected to electronic circuit means; the first collector 4 is used for cooperating with the inner high-voltage electrode 3 to collect high-dose ionization signals, and the second collector 2 is used for cooperating with the outer high-voltage electrode 1 to collect low-dose ionization signals; and the electronic circuit device is used for receiving the high-dose ionization signal and the low-dose ionization signal and carrying out data processing on the signals to obtain an ionizing radiation value of the environment to be detected.
The second collector 2 is used for collecting ionization signals formed in the space inside the outer high-voltage electrode 1 and outside the inner high-voltage electrode 3 and outputting the ionization signals through an output shaft 22; the first collector 4 is used for collecting ionization signals formed in the inner space of the inner high voltage electrode 3 and outputting the ionization signals through the first collector 4. The outer high-voltage electrode 1 and the inner high-voltage electrode 3 form inner and outer high-voltage electrodes on two sides of the second collector 2, so that the sensitive volume of the ionization chamber device is increased, the lower limit of measurement can be guaranteed, and the sensitivity is improved.
In some embodiments, an insulator 5 is sleeved outside each output shaft 22 and at the intersection with the outer high voltage pole 1, and the insulator 5 is arranged outside the first collector 4 and at the intersection with the outer high voltage pole 1. The cylinder 21 is supported by at least three output shafts 22, the output shafts 22 are arranged according to a circular array with the first collector 4 as the center of a circle, the output shafts 22 are symmetrically arranged, and the straight rod structure of the first collector 4 is arranged, so that the stability of the whole structure is enhanced, the vibration resistance of the whole ionization chamber is enhanced, the stability of the ionization chamber detector is effectively improved, and the probability of false alarm and large number of emission is reduced.
In some embodiments, each output shaft 22 is connected to a common output shaft and outputs an ionization signal.
In some embodiments, the electronic circuit device comprises a housing 6, inside which the PCB assembly 7 is arranged, said housing 6 being provided with a socket 8 at the top. And the electronic circuit device is used for receiving the high-dose ionization signal and the low-dose ionization signal and carrying out data processing on the signals to obtain an ionizing radiation value of the environment to be measured.
The utility model relates to a measuring method of wide-range digital composite ionization chamber detector, including following content: an inner high-voltage pole 3 integrally connected with the outer high-voltage pole 1 is coaxially arranged in the outer high-voltage pole 1, a first collector 4 is coaxially arranged in the inner high-voltage pole 3, and a second collector 2 is coaxially arranged outside the inner high-voltage pole 3. The low-dose ionization signals are collected through the matching of the outer high-voltage electrode 1 and the second collector 2, and the high-dose ionization signals are collected through the matching of the inner high-voltage electrode 3 and the first collector 4. And finally, outputting weak current to the electronic circuit device by the ionization signal through the corresponding collector, and performing data processing on the weak current to obtain an ionization radiation value of the environment to be detected.
Among the work of current gas detection, carry out the measurement of high-range and low-range with high-range detector and low-range detector respectively usually, but the utility model discloses an add interior high-voltage electrode 3 in the high-voltage electrode 1 outside to cooperate respectively in two high-voltage electrodes and set up a collector, can realize using a detector just can accomplish the measurement of high-range and low-range simultaneously. Under the condition that the internal gas volume of ionization chamber is the same promptly, the utility model discloses an ionization chamber structure is compared in the ionization chamber structure that only sets up a collector, can realize the measurement of wide range, has improved measuring range, can guarantee the bound simultaneously.
Claims (4)
1. The wide-range digital composite ionization chamber detector is characterized by comprising a first collector (4), wherein the first collector (4) is a slender rod, an inner high-voltage electrode (3) is coaxially sleeved outside the first collector (4), the inner high-voltage electrode (3) is a hollow cylinder, and the bottom end of the first collector (4) is positioned in the inner high-voltage electrode (3) and is not in contact with the bottom end of the inner high-voltage electrode (3); a second collector (2) and an outer high-voltage electrode (1) are sequentially coaxially sleeved outside the inner high-voltage electrode (3), the second collector (2) comprises a cylinder (21) and at least three output shafts (22) arranged at the top end of the cylinder (21), and the output shafts (22) are arranged in a circular array with the first collector (4) as the center of a circle;
the outer high-voltage electrode (1) is a hollow cylinder, the top end of the first collector (4) penetrates out of the top end of the outer high-voltage electrode (1), the top end of the inner high-voltage electrode (3) is connected with the top end of the outer high-voltage electrode (1), the top end of the cylinder (21) is not in contact with the top end of the outer high-voltage electrode (1), and the output shafts (22) penetrate out of the top end of the outer high-voltage electrode (1); the bottom end of the inner high-voltage pole (3) is positioned in the cylinder body (21) and is not contacted with the bottom end of the cylinder body (21), and the bottom end of the cylinder body (21) is positioned in the outer high-voltage pole (1) and is not contacted with the bottom end of the outer high-voltage pole (1);
-said first collector (4) and said second collector (2) are both connected to electronic circuit means; the first collector (4) is used for collecting high-dose ionization signals in cooperation with the inner high-voltage electrode (3), and the second collector (2) is used for collecting low-dose ionization signals in cooperation with the outer high-voltage electrode (1); and the electronic circuit device is used for receiving the high-dose ionization signal and the low-dose ionization signal and carrying out data processing on the signals to obtain an ionizing radiation value of the environment to be measured.
2. The wide-range digital composite ionization chamber detector according to claim 1, wherein an insulator (5) is sleeved outside each output shaft (22) and at the intersection with the outer high voltage pole (1), and the insulator (5) is arranged outside the first collector (4) and at the intersection with the outer high voltage pole (1).
3. A wide range digital composite ionization chamber detector as claimed in claim 1 or 2 wherein each of said output shafts (22) converge to a common output shaft.
4. A wide range digital composite ionization chamber detector according to claim 1 or 2, characterized in that said electronic circuit means comprise a housing (6) inside which the PCB assembly (7) is arranged, said housing (6) being provided on top with a socket (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222123597.1U CN218099630U (en) | 2022-08-12 | 2022-08-12 | Wide-range digital composite ionization chamber detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222123597.1U CN218099630U (en) | 2022-08-12 | 2022-08-12 | Wide-range digital composite ionization chamber detector |
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| Publication Number | Publication Date |
|---|---|
| CN218099630U true CN218099630U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222123597.1U Active CN218099630U (en) | 2022-08-12 | 2022-08-12 | Wide-range digital composite ionization chamber detector |
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| Country | Link |
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| CN (1) | CN218099630U (en) |
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2022
- 2022-08-12 CN CN202222123597.1U patent/CN218099630U/en active Active
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