CN106405609A - Multiparticle event capturing method and device - Google Patents
Multiparticle event capturing method and device Download PDFInfo
- Publication number
- CN106405609A CN106405609A CN201510802977.XA CN201510802977A CN106405609A CN 106405609 A CN106405609 A CN 106405609A CN 201510802977 A CN201510802977 A CN 201510802977A CN 106405609 A CN106405609 A CN 106405609A
- Authority
- CN
- China
- Prior art keywords
- event
- multiparticle
- module
- particle
- time
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 42
- 239000002245 particle Substances 0.000 claims abstract description 42
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims description 16
- 238000005070 sampling Methods 0.000 claims description 4
- 238000002474 experimental method Methods 0.000 claims description 3
- 230000000007 visual effect Effects 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 10
- 238000012545 processing Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005466 cherenkov radiation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002600 positron emission tomography Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Nuclear Medicine (AREA)
Abstract
Provided is a multiparticle event capturing method including the steps of arranging a single detection unit of a multiparticle event; obtaining the multi-attribute likelihood probability function of each detection unit attribute by means of simulated or analytic modeling; determining whether the currently received events of the plurality of detector units belong to the same multi-particle event within a given time interval; and feeding the signals triggered by the multiparticle event back to the detectors and continually making a back-end circuit to start counting or to do other event handling actions. Provided is a multiparticle event capturing device comprising a single detection unit arrangement module, a particle detector module, a multi-event time coincidence module and a multi-particle event signal readout module. The multiparticle event capturing method and device can effectively improve the device space resolution, time resolution, device sensitivity and imaging signal to noise ratio of particle detection, and are particularly applicable to counting type imaging devices.
Description
Technical field
The present invention relates to high-energy physics, Photoelectric Signal Processing and nuclear detection field, more particularly, to a kind of catching method of multiparticle event and device.
Background technology
After multiparticle event refers to that the event of certain transient state occurs, along with absorption and the transmitting of several or several particle in the short time.Due in space or to detect the process of these particles on the time be independent, it is desirable to have a kind of method or device judge whether the multiple particles detecting come from a multiparticle event, that is, capture multiparticle event.Typical multiparticle event includes positron emission and annihilation event, Cerenkov radiation event etc..
In positron emission tomography, single gamma photons scintillation event in order to determine capture is derived from positron annihilation events, generally judged by the way of time window and energy window standalone probe to two single gamma photons scintillation event whether result from positron annihilation events.Wherein, during application time window, the time difference of the event that two detectors detect then thinks that in this time window this two events are to meet the time；During applied energy window, if the energy value of two single gamma photons scintillation event, in this energy window, thinks that this two events are that energy meets.It is considered as coincidence counting that the time that simultaneously meets meets the counting meeting with energy.
In the detector of some accumulation types, one high energy particle can in multiple detector cells sedimentary energy, only sequentially in several detector cells, the particle of sedimentary energy is selected successively, and the method for this gating single event is also to meet to complete by the time.By the way of this gating single event, the system of substantially increasing resists the ability of background count, imparts the ability in this system identification direction simultaneously.
Therefore, for above-mentioned technical problem it is necessary to for the single photon multidimensional information that can obtain, provide a kind of new catching method of multiparticle event and device, to overcome drawbacks described above.Capture the angle of single N particle event comprehensively（2N-D）, the time (N-D), position (3N-D), momentum (3N-D) common 9N dimension information.
Content of the invention
In view of this, it is an object of the invention to provide a kind of catching method of multiparticle event and device, the method and device can read the measurement sample of multiple single events of a multiparticle event effectively, met by the multidimensional information of multiparticle, reject background event, increase reconstructed image signal to noise ratio, it is to avoid the impact to read output signal for the environmental background noise, and carry the ability that identification particle injects direction.
For achieving the above object, the present invention provides following technical scheme：
A kind of catching method of multiparticle event, it includes step：
S1：Dispose single probe unit of multiparticle event；
S2：By emulation or Analytic modeling, obtain many attributes likelihood probability function of each probe unit attribute；
S3：In given time interval, calculate joint many attributes likelihood function of all detectors, and by maximizing joint many attributes likelihood function of all detectors, judge whether the event of the multiple detector cells being currently received belongs to same multiparticle event；
S4：The signal of the triggering of this multiparticle event is fed back to detector, continues to receive particle with high sampling rate, or as trigger, make back-end circuit proceed by counting or other event handling actions（The other informations such as catch position, energy, angle）.
Preferably, in the catching method of above-mentioned multiparticle event, the single event of described multiparticle event refers to one of multiple single events that multiparticle event leads to.
Preferably, in the catching method of above-mentioned multiparticle event, described multiparticle event refers to the primitive event in the short period after generation along with multiple single events that can be detected or detect with having probability.
Preferably, in the catching method of above-mentioned multiparticle event, the described time meets and refers to multiple single photons（No less than 6）Event is in a short period of time（Such as 200 ns）Occur, that is, think that this multiple monochromatic light subevent belongs to a multiparticle event.
Preferably, in the catching method of above-mentioned multiparticle event, the position that described multiparticle event occurs refers to position in organism for nucleic during nucleic transmitting charged particle.
A kind of acquisition equipment of multiparticle event, disposes module, particle detector module including single probe unit, many examples time meets module and multiparticle event signal reads module, wherein,
Single probe unit disposes module, for multiple detectors are placed on the position of photon process, and passes through emulation experiment, optimizes selecting of position；
Particle detector module, for realizing the detection to single-particle in the way of various visual angles.Detector module be designed with poroid detection geometry and single photon response time photoelectric device faster, in order to capture the angle of single N particle event（2N-D）, the time (N-D), position (3N-D), momentum (3N-D) common 9N dimension information；
Many examples time meets module, and for judging whether multi-photon event belongs to a multiparticle event, the standard of judgement is in shorter time window（Such as 6 ns）Inside there are multiple monochromatic light subevents（No less than 200）；
Multiparticle event signal reads module, for capturing gating signal, reads other information interested（Angle, time, position, momentum etc.）.
From technique scheme as can be seen that passing through catching method and the device of the multiparticle event using the present invention, can effectively resist unrelated particle and entering impact, the particle choosing being particularly suitable in imaging system is sentenced and the particle discrimination in diagnostic system.
Compared with prior art, the invention has the beneficial effects as follows：
（1）Resist bias light and the organism self luminous time meets design, advantageously reduce background noise and the irrelevant signal noise of imaging；
（2）Tracer signal in the way of event, carries more raw informations.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing of required use in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing for the present invention in describing below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the flow chart of the catching method of multiparticle event of the present invention.
Fig. 2 is the structure drawing of device of the acquisition equipment of multiparticle event of the present invention.
Fig. 3 is the schematic diagram of the decay multiple particles of generation of the rich proton nuclear species of the present invention.
Fig. 4 is the time of any port number of the present invention to meet the schematic diagram fragment of example.
Fig. 5 is the typical 3 weight single photon event matches schematic diagrams of the present invention.
Fig. 6 is the present invention typically dual single photon event matches schematic diagram.
Fig. 7 is the three-photon signal of the present invention typical multiparticle event.
Fig. 8 is the two-photon signal of the present invention typical multiparticle event.
Fig. 9 is the multi-photon signal segment of the present invention typical multiparticle event.
Figure 10 is the multiple single event of present invention mathematical abstractions schematic diagram on a timeline.
Figure 11 filters the signal schematic representation of Poisson process for the present invention.
Specific embodiment
The invention discloses a kind of catching method of multiparticle event of Single Photon Time Resolved Spectrometer and device, the method and device can be effectively realized the labelling of the event time of advent, the temporal resolution of hoisting module and device.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is described in detail it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained on the premise of not making creative work, broadly fall into the scope of protection of the invention.
As shown in Figure 1, the catching method of multiparticle event of Single Photon Time Resolved Spectrometer disclosed by the invention and device pass through to gather single photon signal with the data mode of event, the recycling time meets choosing and sentences multiparticle event, other relevant informations of sampling, and specific method and step is：
S1：Dispose single probe unit of multiparticle event；
S2：By emulation or Analytic modeling, obtain many attributes likelihood probability function of each probe unit attribute；
S3：In given time interval, calculate joint many attributes likelihood function of all detectors, and by maximizing joint many attributes likelihood function of all detectors, judge whether the event of the multiple detector cells being currently received belongs to same multiparticle event；
S4：The signal of the triggering of this multiparticle event is fed back to detector, continues to receive particle with high sampling rate, or as trigger, make back-end circuit proceed by counting or other event handling actions（The other informations such as catch position, energy, angle）.
In the acquisition equipment of multiparticle event of above Single Photon Time Resolved Spectrometer, the single event of described multiparticle event refers to one of multiple single events that multiparticle event leads to.
In the acquisition equipment of multiparticle event of above Single Photon Time Resolved Spectrometer, described multiparticle event refers to the primitive event in the short period after generation along with multiple single events that can be detected or detect with having probability.
In the acquisition equipment of multiparticle event of above Single Photon Time Resolved Spectrometer, the described time meets and refers to multiple single photons（No less than 6）Event is in a short period of time（Such as 200 ns）Occur, that is, think that this multiple monochromatic light subevent belongs to a multiparticle event.
In the acquisition equipment of multiparticle event of above Single Photon Time Resolved Spectrometer, the position that described multiparticle event occurs refers to position in organism for nucleic during nucleic transmitting charged particle.
As shown in Fig. 2 a kind of acquisition equipment of multiparticle event disclosed by the invention, dispose module 100, particle detector module 200 including single probe unit, many examples time meets module 300 and multiparticle event signal reads module 400, wherein,
Single probe unit disposes module 100, for multiple detectors are placed on the position of photon process, and passes through emulation experiment, optimizes selecting of position；
Particle detector module 200, for realizing the detection to single-particle in the way of various visual angles.Detector module be designed with poroid detection geometry and single photon response time photoelectric device faster, in order to capture the angle of single N particle event（2N-D）, the time (N-D), position (3N-D), momentum (3N-D) common 9N dimension information；
Many examples time meets module 300, and for judging whether multi-photon event belongs to a multiparticle event, the standard of judgement is in shorter time window（Such as 6 ns）Inside there are multiple monochromatic light subevents（No less than 200）；
Multiparticle event signal reads module 400, for capturing gating signal, reads other information interested（Angle, time, position, momentum etc.）.
From technique scheme as can be seen that passing through catching method and the device of the multiparticle event using the present invention, can effectively resist unrelated particle and entering impact, the particle choosing being particularly suitable in imaging system is sentenced and the particle discrimination in diagnostic system.
Fig. 3 is the schematic diagram of the decay multiple particles of generation of the rich proton nuclear species of the present invention.Fig. 4 is the time of any port number of the present invention to meet the schematic diagram fragment of example.Fig. 5 is the typical 3 weight single photon event matches schematic diagrams of the present invention.Fig. 6 is the present invention typically dual single photon event matches schematic diagram.Fig. 7 is the three-photon signal of the present invention typical multiparticle event.Fig. 8 is the two-photon signal of the present invention typical multiparticle event.Fig. 9 is the multi-photon signal segment of the present invention typical multiparticle event.Figure 10 is the multiple single event of present invention mathematical abstractions schematic diagram on a timeline.In conjunction with Fig. 3, Fig. 4 and Fig. 5, by several specific embodiments, the catching method of the multiparticle event of Single Photon Time Resolved Spectrometer of the present invention is described further with device.The catching method of multiparticle event of Single Photon Time Resolved Spectrometer proposed by the present invention and device, parameter that it is related to, detect geometry designs, the time meets and processes needs and be adjusted to reach good time resolution performance and shorter pulse duration according to the feature with acquisition data.List the parameter of involved Application Example processing data herein.
Example 1：
List the parameter of the present embodiment processing data herein：
Step（1）Actual device used is using camera bellows a size of 1.6m × 1.5m × 1.5m.The source of penetrating is the positron annihilation gammaphoton 60Co at multiple energy peaks；
Step（2）Using the enhanced silicon photomultiplier of blue light, detector adopts circulus；
Step（3）Meeting the time is about 2ns, meets and judges to meet process using the time of off-line type；
Step（4）Collect time, energy and the positional information that packet contains front 50 particles.
Example 2：
List the parameter of this application example 2 processing data herein：
Step（1）Actual device used is using camera bellows a size of 1.5m × 1.6m × 1.6m.Penetrate the 124I-NaI that source is 511kev；
Step（2）Using the enhanced photomultiplier tube of HONGGUANG, detector adopts slab construction；
Step（3）Meeting the time is about 10ns, meets and judges to meet process using the online time, sentence choosing using cascade when meeting, totally 100 particles；
Step（4）Collect the time containing all 100 particles for the packet, energy, angles and positions information.
Methods and apparatus of the present invention can be used for radiating the nuclear technology of charged corpuscle, including nuclear detection, kernel analysis, Nuclear medical instruments.
The particle choosing being particularly suitable in imaging system is sentenced and the particle discrimination in diagnostic system.
Compared with prior art, the invention has the beneficial effects as follows：
（1）Resist bias light and the organism self luminous time meets design, advantageously reduce background noise and the irrelevant signal noise of imaging；
（2）Tracer signal in the way of event, carries more raw informations.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and without departing from the spirit or essential characteristics of the present invention, the present invention can be realized in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is limited by claims rather than described above, it is intended that all changes in the implication and scope of the equivalency of claim that fall are included in the present invention.Any reference in claim should not be considered as limiting involved claim.
In addition, it should be understood that, although this specification is been described by according to embodiment, but not each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity, those skilled in the art should using description as an entirety, the technical scheme in each embodiment can also through appropriately combined, formed it will be appreciated by those skilled in the art that other embodiment.
Claims (8)
1. a kind of catching method of multiparticle event it is characterised in that：Including step：
S1：Dispose single probe unit of multiparticle event；
S2：By emulation or Analytic modeling, obtain many attributes likelihood probability function of each probe unit attribute；
S3：In given time interval, calculate joint many attributes likelihood function of all detectors, and by maximizing joint many attributes likelihood function of all detectors, judge whether the event of the multiple detector cells being currently received belongs to same multiparticle event；
S4：The signal of the triggering of this multiparticle event is fed back to detector, continues to receive particle with high sampling rate, or as trigger, make back-end circuit proceed by counting or other event handling actions（The other informations such as catch position, energy, angle）.
2. a kind of multiparticle event according to claim 1 catching method it is characterised in that：Event to be captured is once to produce the decay event of several single-particles.
3. a kind of multiparticle event according to claim 1 catching method it is characterised in that：When multiple particles of decay event generation are detected by multiple probe units, it is recorded as different attributes, the set of these attributes is the probe unit property set of multiparticle event, this set comprise the time, momentum, energy, position, wavelength, polarization, impulse smaple one or several.
4. multiparticle event according to claim 1 catching method it is characterised in that：Joint many attributes likelihood function of described detector is the joint likelihood probability function of each detector cells multidimensional measure value.
5. multiparticle event according to claim 1 catching method it is characterised in that：Many attributes likelihood probability function of described step S2 is measured value corresponding likelihood probability function.
6. multiparticle event according to claim 1 catching method it is characterised in that：Joint many attributes likelihood function of described step S3 introduces independence assumption or other Attribute Association models when avoiding amount of calculation.
7. multiparticle event according to claim 1 catching method it is characterised in that：The judgement single multiparticle event of described step S4 is subordinated to same multiparticle event.
8. a kind of acquisition equipment of multiparticle event it is characterised in that：Single probe unit disposes module, particle detector module, many examples time meets module and multiparticle event signal reads module, wherein,
Single probe unit disposes module, for multiple detectors are placed on the position of photon process, and passes through emulation experiment, optimizes selecting of position；
Particle detector module, for realizing the detection to single-particle in the way of various visual angles；
Many examples time meets module, and for judging whether multi-photon event belongs to a multiparticle event, the standard of judgement is in shorter time window（Such as 6 ns）Inside there are multiple monochromatic light subevents（No less than 200）；
Multiparticle event signal reads module, for capturing gating signal, reads other information interested（Angle, time, position, momentum etc.）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802977.XA CN106405609A (en) | 2015-11-19 | 2015-11-19 | Multiparticle event capturing method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510802977.XA CN106405609A (en) | 2015-11-19 | 2015-11-19 | Multiparticle event capturing method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106405609A true CN106405609A (en) | 2017-02-15 |
Family
ID=58008057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510802977.XA Pending CN106405609A (en) | 2015-11-19 | 2015-11-19 | Multiparticle event capturing method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106405609A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090936A (en) * | 2017-12-17 | 2018-05-29 | 北京工业大学 | The scanning mating plate tomograph imaging method of Qie Lunkefu fluorescence excitations |
| CN111624646A (en) * | 2020-06-11 | 2020-09-04 | 北京卫星环境工程研究所 | Method for discriminating and processing repeated events of multi-module radiation detector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076718A (en) * | 2004-12-13 | 2007-11-21 | 奥斯特雷罗有限公司 | Detecting, measuring and controlling particles and electromagnetic radiation |
| CN101268949A (en) * | 2007-03-21 | 2008-09-24 | 中国科学院高能物理研究所 | Coincidence system and method in positive electron dislocation scan |
| WO2011157045A1 (en) * | 2010-06-13 | 2011-12-22 | 苏州瑞派宁科技有限公司 | Positron emission tomography method and device with application adaptability |
| WO2014180734A2 (en) * | 2013-05-08 | 2014-11-13 | Koninklijke Philips N.V. | Apparatus and method for the evaluation of gamma radiation events |
-
2015
- 2015-11-19 CN CN201510802977.XA patent/CN106405609A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076718A (en) * | 2004-12-13 | 2007-11-21 | 奥斯特雷罗有限公司 | Detecting, measuring and controlling particles and electromagnetic radiation |
| CN101268949A (en) * | 2007-03-21 | 2008-09-24 | 中国科学院高能物理研究所 | Coincidence system and method in positive electron dislocation scan |
| WO2011157045A1 (en) * | 2010-06-13 | 2011-12-22 | 苏州瑞派宁科技有限公司 | Positron emission tomography method and device with application adaptability |
| WO2014180734A2 (en) * | 2013-05-08 | 2014-11-13 | Koninklijke Philips N.V. | Apparatus and method for the evaluation of gamma radiation events |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108090936A (en) * | 2017-12-17 | 2018-05-29 | 北京工业大学 | The scanning mating plate tomograph imaging method of Qie Lunkefu fluorescence excitations |
| CN111624646A (en) * | 2020-06-11 | 2020-09-04 | 北京卫星环境工程研究所 | Method for discriminating and processing repeated events of multi-module radiation detector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105008962B (en) | To the photon creation time stamp detected | |
| US8993977B2 (en) | Detector and a method for simultaneously detecting both gamma rays and neutron using the same | |
| JP5963772B2 (en) | Nuclear material detection method and detection system by neutron interrogation method. | |
| JP2018538525A (en) | Method and system for real-time processing of pulse pileup events | |
| US8610081B2 (en) | Systems and methods for generating control signals in radiation detector systems | |
| CN111221030A (en) | Neutron-gamma detector based on physical integration and neutron-gamma online screening method | |
| WO2010099331A3 (en) | System and method for increased gamma/neutron detection | |
| WO2016145105A1 (en) | Sensor fusion with muon detector arrays to augment tomographic imaging using ambient cosmic rays | |
| US20210270993A1 (en) | Radiation detecting system and method | |
| Farsoni et al. | Real-time pulse-shape discrimination and beta–gamma coincidence detection in field-programmable gate array | |
| Britton et al. | Coincidence corrections for a multi-detector gamma spectrometer | |
| Ely et al. | Final technical report for the neutron detection without helium-3 project | |
| CN106842277A (en) | A kind of pile-up events processing method and processing device | |
| CN106405609A (en) | Multiparticle event capturing method and device | |
| CN206710614U (en) | The measuring system of radioactivity inert gas | |
| JP7239921B2 (en) | Positron annihilation spectrometer | |
| CN106405610A (en) | Cherenkov event induction optoelectronic pulse digitizing method and apparatus | |
| CN106821409B (en) | Stacking event processing method and device | |
| CN106405618A (en) | Cherenkov radiation detection method and apparatus | |
| TWI335600B (en) | Apparatus of radioactivity measurements for radwaste drums and detecting method using the same | |
| TW201040570A (en) | Method and apparatus of all function environmental gamma radiation monitor | |
| CN113835113B (en) | Inter-module scattering data collection method in PET | |
| CN110389141B (en) | Position reading apparatus, method and device | |
| Kavouras et al. | Pulsed photofission delayed gamma ray detection for nuclear material identification | |
| Ivanov et al. | Simultaneous Deposited Energy and Interaction Position Determination in Monolithic Scintillators |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20240507 |