CN1710701A - Position-sensitive multi-chamber directratio counter tube - Google Patents
Position-sensitive multi-chamber directratio counter tube Download PDFInfo
- Publication number
- CN1710701A CN1710701A CN 200510040725 CN200510040725A CN1710701A CN 1710701 A CN1710701 A CN 1710701A CN 200510040725 CN200510040725 CN 200510040725 CN 200510040725 A CN200510040725 A CN 200510040725A CN 1710701 A CN1710701 A CN 1710701A
- Authority
- CN
- China
- Prior art keywords
- counter
- wire
- counters
- tube
- proportional
- 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.)
- Granted
Links
Images
Landscapes
- Measurement Of Radiation (AREA)
Abstract
There is metallic wire of cathode inside berylium window and wire of anode is inside cathode. Characters are that six proportional counter tubes constitute multi-cabinet counter. Wire mesh separates off each counter, and separation layer is as cathode layer. Three counters positioned at upper layer are as sensitive counters, and wire of anode is carbon fiber wire in high resistivity. Three counters positioned at lower layer are as anticoincidence counters, and wire of anode is goldplated tungsten wire. The six counters are packed in same container. Not combining counters simply, the invention merges cathode of each counter to constitute a common separation layer. Thus, structure is simplified and weight is reduced. Pulse charges generated by anode wires are split to anodes at two ends, where two amplifiers collect charges. Magnitude of outputting signal is in inverse proportion to length of path. Comparing with signals at two ends can determine location of ionized incident X ray.
Description
Technical field
The present invention relates to a kind of astronomical observation instrument, be specifically related to a kind of structural design that is used for the position-sensitive multi-chamber directratio counter tube of all-sky x-ray source monitoring.
Background technology
Proportional counter tube is a kind of astronomical instrument that the space x-ray source is monitored, and the structure of traditional proportional counter tube is: beryllium window tube is made up of cathodic metal shell and anodic wire by one.The development of research of space x-ray source and monitoring, that need to adopt a plurality of proportional counter tubes constitutes the more full scope of function, for example adopt the sensitive counter tube of several measured X rays and the anti-coincidence counter of removal charged particle background to combine.But, any space instrument, under the prerequisite that satisfies the space environment condition, weight, volume, power consumption etc. are vital Considerations.Tend to run into such situation, a good again research topic only is only because detection instrument weight former thereby the misfortune that failed to be elected.If the simple and mechanical stack combinations of traditional proportional counter tube is adopted in the combination of a plurality of proportional counter tubes, then can produce the problem that aspects such as weight, volume, power consumption do not meet the astronomical observation instrument requirement, and can't use.
Summary of the invention
Task of the present invention provides a kind of technical scheme of a plurality of proportional counter tube combinations, a plurality of proportional counter tube combinations of new construction not only should be satisfied the space environment condition, satisfy the needs of x-ray source monitoring, simultaneously, new departure has tangible improvement to traditional proportional counter tube combination on vital factors such as weight, volume, power consumption.
The scheme of finishing the foregoing invention task is:
The position sensitive multi-wire proportional counter is provided with cathode mesh in the beryllium window, be provided with anodic wire in the middle of the negative electrode, it is characterized in that, form the multicell counter by six proportional counter tubes, separate with woven wire between each proportional counter tube, the double cathode plane of doing of this woven wire interlayer; Three counter tubes in upper strata are sensitive counter tube, and anodic wire is the high resistivity carbon fiber wire, and three counter tubes of lower floor are anti-coincidence counter, and anodic wire is a gold-plated tungsten wire, and six proportional counter tubes are encapsulated in the same container.
Prioritization scheme of the present invention, the double wire spacer structure of doing cathode plane is done following improvement:
1, the wall thickness of chamber wall, upper and lower two sections differ 1～0.5mm, form ladder, so that shelve around last diaphragm plate wiry, upper and lower two districts of electric field shielding;
2, be provided with two grooves in the relevant position of vertical end tube wall, so that intercalation is equally around last upper and lower two vertical clapboards wiry, to realize the electric field isolation between adjacent two proportional counters.
3, the concrete structure of six proportional counter tubes is: the upper strata is the sensitive counter tube of measured X ray, window is the beryllium of 100 μ, anodic wire is the high resistivity carbon fiber wire of 10 μ, and lower floor is for removing the anti-coincidence counter of charged particle background, and anodic wire is the gold-plated tungsten wire of 25 μ.
The present invention is not the simple combination of a plurality of counter tubes, but the negative electrode of each counter tube is merged, simultaneously with the interlayer of this negative electrode as each counter tube, simplify the structure significantly, reduced weight, and the combination of two kinds of a plurality of counter tubes, can finish observation mission better: in sensitive pipe, the ionization that is produced somewhere by incident X-rays is after amplifying, owing to adopted the carbon fiber wire of high resistivity to do anode, the pulse electric charge that is produced in the anodic wire relevant position will be divided to the two ends of anode, collected by two charge amplifiers respectively, its output signal is inversely proportional to the size in path separately, compares the size of two ends output signal, just can accurately determine the position of the incident X-rays of generation ionization.
Description of drawings
Fig. 1 is the fundamental diagram of multi-wire proportional counter;
Fig. 2 is a multi-wire proportional counter structural representation of the present invention;
Fig. 3 is not for around last diaphragm structure schematic diagram wiry.
Embodiment
Embodiment 1, and with reference to Fig. 1～Fig. 2, the fundamental diagram of proportional counter tube: position-sensitive multi-chamber directratio counter tube is at the multicell combinatorial enumeration device of being made up of six proportional counter tubes, separates with woven wire between each counter tube.That is, beryllium window 1 is the beryllium of 100 μ; In window, be provided with cathode mesh 2.The upper strata is the sensitive counter tube 4 of measured X ray, and anodic wire is the high resistivity carbon fiber wire 3 of 10 μ, and lower floor is for removing the anti-coincidence counter 6 of charged particle background, and anodic wire is the gold-plated tungsten wire 5 of 25 μ.
The main points that realize task of the present invention are: utilize the tube wall of chamber wall 7 as corresponding individual count pipe; Thickness of container wall, upper and lower two sections differ 1～0.5mm, form ladder 8, so that shelve around last diaphragm plate 9 wiry (with reference to Fig. 3), upper and lower two districts of electric field shielding; At the relevant position of vertical end tube wall two grooves of spark machined, so that intercalation is equally around last upper and lower two vertical clapboards wiry, to realize the electric field isolation between adjacent two proportional counters.
The invention is not restricted to these disclosed embodiments, the present invention will cover the scope described in the patent claims, and the various distortion of claim scope and equivalence variation.
Claims (4)
1, a kind of position-sensitive multi-chamber directratio counter tube is provided with the cathodic metal silk in the beryllium window, establish anodic wire in the middle of the negative electrode, it is characterized in that, form the multicell counter by six proportional counter tubes, separate with woven wire between each proportional counter tube, the double cathode plane of doing of this wire interlayer; Three counter tubes in upper strata are sensitive counter tube, and anodic wire is the high resistivity carbon fiber wire, and three counter tubes of lower floor are anti-coincidence counter, and anodic wire is a gold-plated tungsten wire, and described six proportional counter tubes are encapsulated in the same container.
2, according to the described position-sensitive multi-chamber directratio counter tube of claim 1, it is characterized in that described thickness of container wall, upper and lower two sections differ 1～0.5mm, form ladder, be shelved on this ladder upper and lower two districts of electric field shielding around last diaphragm plate wiry.
3, according to claim 1 or 2 described position-sensitive multi-chamber directratio counter tubes, it is characterized in that, relevant position at vertical end tube wall is provided with two grooves, in this groove, realizes the electric field isolation between adjacent two proportional counters around last upper and lower two vertical clapboard intercalations wiry.
4, according to the described position-sensitive multi-chamber directratio counter tube of claim 3, it is characterized in that, the concrete structure of six proportional counter tubes is: the upper strata is the sensitive counter tube of measured X ray, window is the beryllium of 100 μ, anodic wire is the high resistivity carbon fiber wire of 10 μ, lower floor is for removing the anti-coincidence counter of charged particle background, and anodic wire is the gold-plated tungsten wire of 25 μ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100407254A CN100490053C (en) | 2005-06-23 | 2005-06-23 | Position-sensitive multi-chamber proportional counter tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100407254A CN100490053C (en) | 2005-06-23 | 2005-06-23 | Position-sensitive multi-chamber proportional counter tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1710701A true CN1710701A (en) | 2005-12-21 |
| CN100490053C CN100490053C (en) | 2009-05-20 |
Family
ID=35706913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100407254A Expired - Fee Related CN100490053C (en) | 2005-06-23 | 2005-06-23 | Position-sensitive multi-chamber proportional counter tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100490053C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068183A (en) * | 2020-09-15 | 2020-12-11 | 中国核动力研究设计院 | 4 pi multi-filament proportional chamber for 4 pi beta-gamma coincidence measurement |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2098736U (en) * | 1991-06-07 | 1992-03-11 | 刘振琴 | X-ray tube |
| US5294789A (en) * | 1993-02-01 | 1994-03-15 | The United States Of America As Represented By The United States Department Of Energy | Gamma-insensitive optical sensor |
| CN2184204Y (en) * | 1994-02-25 | 1994-11-30 | 清华大学 | Medium, rugh energy X,Y radiation cinage arraytester for gas discharge |
| FR2727525B1 (en) * | 1994-11-25 | 1997-01-10 | Centre Nat Rech Scient | IONIZING RADIATION DETECTOR WITH PROPORTIONAL MICROCOUNTERS |
| CN2273016Y (en) * | 1995-09-22 | 1998-01-21 | 清华大学 | Array detecting device for X and gamma radiation imaging proportional counter |
-
2005
- 2005-06-23 CN CNB2005100407254A patent/CN100490053C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112068183A (en) * | 2020-09-15 | 2020-12-11 | 中国核动力研究设计院 | 4 pi multi-filament proportional chamber for 4 pi beta-gamma coincidence measurement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100490053C (en) | 2009-05-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8729487B2 (en) | Neutron detector and method of making | |
| US8973257B2 (en) | Method of making a neutron detector | |
| US20120049054A1 (en) | Nano-tips based gas ionization chamber for neutron detection | |
| EP3293550B1 (en) | Slow neutron detection device | |
| US7863571B2 (en) | Muon detector | |
| JP6571620B2 (en) | Slow neutron converter and slow neutron detector | |
| JP2010093071A (en) | Semiconductor radiation detector and nuclear medicine diagnostic device | |
| EP0237327A2 (en) | Cathode/converter | |
| CN1740819A (en) | The scintillation detector that is used for nuclear imaging device | |
| CN104101895B (en) | Neutron detector and neutron detection method | |
| US3898465A (en) | Imaging transducer for radiation particles | |
| CN207717993U (en) | Flow gas radioactive source activity measuring device | |
| CN100490053C (en) | Position-sensitive multi-chamber proportional counter tube | |
| US8431906B2 (en) | Fast neutron detector having an open-structured hydrogenous radiator | |
| RU194689U1 (en) | Two-coordinate thermal and cold neutron detector with a 3He2 gas converter | |
| EP2418675A2 (en) | Systems, methods, and apparatus for anode and cathode electrical separation in neutron detector tubes | |
| Povinec et al. | Multielement proportional counters for low-level 3H and 14C counting | |
| EP1657571A2 (en) | Elliptical gas-filled detector for radiation detection | |
| US2485516A (en) | Shallow plane proportional counter | |
| Povinec | Proportional chambers for low level counting | |
| CN2273016Y (en) | Array detecting device for X and gamma radiation imaging proportional counter | |
| Chepel et al. | Development of liquid xenon detectors for medical imaging | |
| RU2797497C1 (en) | Position-sensitive gas detector of thermal and cold neurons | |
| RU2282215C2 (en) | Position-sensitive neutron detector | |
| CN107064993A (en) | A kind of method that neutron detection is carried out based on the time difference |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20100623 |