CN105225915A - A kind of dynode electron multiplier - Google Patents
A kind of dynode electron multiplier Download PDFInfo
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- CN105225915A CN105225915A CN201510576356.4A CN201510576356A CN105225915A CN 105225915 A CN105225915 A CN 105225915A CN 201510576356 A CN201510576356 A CN 201510576356A CN 105225915 A CN105225915 A CN 105225915A
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Abstract
The invention discloses a kind of dynode electron multiplier, comprise two pieces of ceramic wafers, some beating takes level assembly, transition piece assembly, collect level assembly and some resistance, two pieces of described ceramic wafers are oppositely arranged and are connected by screw, described transition piece assembly, collect level assembly and some described beat to be clipped in by level assembly be fixed on ceramic wafer between two pieces of described ceramic wafers, each described beating takes level assembly to be cascaded successively, head and the tail two are beaten and are respectively the first order by level assembly and beat and beat by level assembly by level assembly and most final stage, also comprise three lead-in wires, the described first order is beaten and is gone between by level assembly be connected with one, described most final stage is beaten by level assembly, described transition piece assembly is connected successively with second lead-in wire, collect level assembly to go between be connected with the 3rd, some described resistance is arranged on outside two pieces of described ceramic wafers, each described beating takes a level assembly two ends described resistance all in parallel.The present invention has that structure is simple, life-span length, stable performance, low cost and other advantages.
Description
Technical field
The present invention relates to electron multiplier manufacturing technology field, especially a kind of dynode electron multiplier.
Background technology
Atomic clock is that keep time in current various countries, the Core equipment of time service, in a large number for military navigation navigation system, time-frequency measuring station and time-frequency website and satellite civil navigation, is one of core load of satellite navigation global positioning system.The atomic clock of current development comparative maturity mainly contains rubidium clock, hydrogen clock and caesium clock.Comparatively speaking, caesium clock precision is higher, and long-term stability is best, and reliability is very high, and in space, application has very clear and definite background demand, and as navigation and survey of deep space etc., small-sized caesium clock is also widely applied at navigation system ground station simultaneously.
The caesium clock that China's time and frequency system uses mainly relies on imported from America, and the production of small-sized caesium clock is monopolized by the U.S. at present substantially, is difficult to import especially to high Property in America cesium-beam atomic clock in Military Application.The shortage of domestic hiperspace cesium-beam atomic clock technology constrains the development of Chinese Space airmanship to a great extent.
Electron multiplier is the critical component of small-sized cesium-beam atomic clock, and electron multiplier is used to the device carrying out Current amplifier, and its performance directly affects the overall performance of caesium clock, designs effective and feasible electron multiplier, can realize electron multiplication development.Solve the DOMESTICATION PROBLEM of small-sized caesium clock.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of dynode electron multiplier, have that structure is simple, life-span length, stable performance, low cost and other advantages.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of dynode electron multiplier, comprises two pieces of ceramic wafers, some beating takes level assembly, transition piece assembly, collection level assembly and some resistance,
Two pieces of described ceramic wafers are oppositely arranged and are connected by screw, described transition piece assembly, collect level assembly and some described beat to be clipped in by level assembly be fixed on ceramic wafer between two pieces of described ceramic wafers, each described beating takes level assembly to be cascaded successively, head and the tail two are beaten and are respectively the first order by level assembly and beat and beat by level assembly by level assembly and most final stage
Also comprise three lead-in wires,
The described first order is beaten and is gone between by level assembly be connected with one,
Described most final stage is beaten and is connected successively by level assembly, described transition piece assembly and second lead-in wire,
Collect level assembly to go between be connected with the 3rd,
Some described resistance is arranged on outside two pieces of described ceramic wafers, and each described beating takes a level assembly two ends described resistance all in parallel.
Further, also comprise support tube and fastening swivel nut,
Described support tube is identical with the number of described screw with the number of described fastening swivel nut, and described screw is connected with described fastening swivel nut through two pieces of described ceramic wafers, described support tube between two pieces of described ceramic wafers, be enclosed within described screw.
Further, also comprise ring surface, extend inside the openend of described ring surface around described sleeve pipe, described cannelure is relatively set with two grooves, two described grooves are slidably matched with two described projections respectively.
An installation method for dynode electron multiplier, comprises the following steps:
(1) with alcohol or all spare and accessory parts of acetone ultrasonic cleaning electron multiplier;
(2) on two pieces of ceramic wafers, the fixing hole installed for each assembly is beaten;
(3) according to the fixing hole position on ceramic wafer, transition piece assembly and collector assembly are arranged on one piece of ceramic wafer;
(4) some dynode assemblies to be arranged on one piece of ceramic wafer in corresponding fixing hole, level assembly is taken to be fixed on the positioning with another block ceramic wafer to transition piece assembly, collection level assembly and each beating again, each beating is connected by between level assembly, head and the tail two are beaten and are respectively the first order by level assembly and beat and beat by level assembly by level assembly and most final stage, and most final stage is beaten and connected with transition piece assembly by level assembly;
(5) support tube and ceramic wafer are vertically set between two pieces of ceramic wafers, screw is connected with fastening swivel nut with support tube through the location hole on ceramic wafer, is tightened together by two pieces of ceramic wafers;
(6) each beating takes a resistance all in parallel on level assembly, and each described distribution of resistance is in the outside of two pieces of described ceramic wafers;
(7) three lead-in wires are beaten with the first order by level assembly, transition piece assembly respectively and collect level assembly and be connected.
A kind of dynode electron multiplier of the present invention, have that structure is simple, life-span length, stable performance, low cost and other advantages.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of dynode electron multiplier of the present invention;
Fig. 2 is that schematic diagram is looked on the right side of a kind of dynode electron multiplier of the present invention;
Fig. 3 is the cutaway view at A-A place in Fig. 1;
Fig. 4 is that the B of Fig. 2 is to schematic diagram;
Fig. 5 is that schematic diagram is looked on a left side for a kind of dynode electron multiplier of the present invention.
Embodiment
Describe the present invention below in conjunction with accompanying drawing, the description of this part is only exemplary and explanatory, should not have any restriction to protection scope of the present invention.
A kind of dynode electron multiplier as shown in Fig. 1 to 5, comprises two pieces of ceramic wafers 2, some beating takes level assembly 7, transition piece assembly 8, collection level assembly 9 and some resistance 10,
Two pieces of described ceramic wafers 2 are oppositely arranged and are connected by screw 5, described transition piece assembly 8, collect level assembly 9 and some described beat to be clipped in by level assembly 7 be fixed on ceramic wafer 2 between two pieces of described ceramic wafers 2, each described beating takes level assembly 7 to be cascaded successively, head and the tail two are beaten and are respectively the first order by level assembly 7 and beat and beat by level assembly 7 by level assembly 7 and most final stage
Also comprise three lead-in wires,
The described first order is beaten and is gone between by level assembly 7 be connected with one,
Described most final stage is beaten and is connected successively by level assembly 7, described transition piece assembly 8 and second lead-in wire,
Collect level assembly 9 to go between be connected with the 3rd,
Some described resistance 10 is arranged on outside two pieces of described ceramic wafers 2, and each described beating takes a level assembly 7 two ends described resistance 10 all in parallel.
Also comprise support tube 6 and fastening swivel nut 1,
Described support tube 6 is identical with the number of described screw 5 with the number of described fastening swivel nut 1, and described screw 5 is connected with described fastening swivel nut 1 through two pieces of described ceramic wafers 2, described support tube 6 between two pieces of described ceramic wafers 2, be enclosed within described screw 5.
An installation method for dynode electron multiplier, comprises the following steps:
(1) fastening swivel nut 1, ceramic wafer 2, oxygenless copper washer, hexagon socket cap head screw 5, stainless steel plain washer, support tube 6, dynode assembly, transition piece assembly 8, collector assembly.The spare and accessory parts that need clean put into clean vessel, clean with deionized water rinsing, again part is used respectively and analyze pure acetone and analyze each Ultrasonic Cleaning 15min of absolute alcohol, then rinse well with the pure absolute ethyl alcohol of analysis, extremely surperficial without scratch and drop remaining trace with the wiping of chipless cleansing tissue;
(2) on two pieces of ceramic wafers 2, the fixing hole installed for each assembly is beaten;
(3) according to the fixing hole position on ceramic wafer 2, transition piece assembly 8 and collector assembly are arranged on one piece of ceramic wafer 2;
(4) some dynode assemblies to be arranged on one piece of ceramic wafer 2 in corresponding fixing hole, level assembly 7 is taken to be fixed on the positioning with another block ceramic wafer 2 pairs of transition piece assemblies 8, collection level assembly 9 and each beating again, each beating takes series connection between level assembly 7, head and the tail two are beaten and are respectively the first order by level assembly 7 and beat and beat by level assembly 7 by level assembly 7 and most final stage, and most final stage is beaten and connected with transition piece assembly 8 by level assembly 7.
Arranging nine grades in the present embodiment beats by level assembly 7, first nine grades of dynode assemblies is arranged in one piece of corresponding fixing hole of ceramic wafer 2, then is fixed on the positioning nine grades of dynode assemblies with another block ceramic wafer 2;
(5) support tube 6 and ceramic wafer 2 are vertically set between two pieces of ceramic wafers 2, screw 5 is connected with fastening swivel nut 1 with support tube 6 through the location hole on ceramic wafer 2, two pieces of ceramic wafers 2 are tightened together, screw 5 installs oxygenless copper washer 3 between support tube 6 and ceramic wafer 2, is provided with outside ceramic wafer 2, between screw 5 and ceramic wafer 2 and does not revise plain washer 4.Adopt screw thread to tighten and add stainless steel band surface spot welding, prevent mechanics from vibrating and cause running, ensure mechanical fasteners reliability;
(6) each beating takes a resistance 10 all in parallel on level assembly 7, and each described resistance 10 is distributed in the outside of two pieces of described ceramic wafers 2;
(7) three lead-in wires are beaten with the first order by level assembly 7, transition piece assembly 8 respectively and collect level assembly 9 and be connected, and complete electron multiplier installation.
In the present embodiment, ceramic wafer 2 adopts the alumina ceramic material of electron level, and resistance 10 adopts high temperature resistant vacuum resistance 10.
A kind of dynode electron multiplier of the present invention, have that structure is simple, life-span length, stable performance, low cost and other advantages.
Claims (4)
1. a dynode electron multiplier, is characterized in that, comprises two pieces of ceramic wafers, some beating takes level assembly, transition piece assembly, collection level assembly and some resistance,
Two pieces of described ceramic wafers are oppositely arranged and are connected by screw, described transition piece assembly, collect level assembly and some described beat to be clipped in by level assembly be fixed on ceramic wafer between two pieces of described ceramic wafers, each described beating takes level assembly to be cascaded successively, head and the tail two are beaten and are respectively the first order by level assembly and beat and beat by level assembly by level assembly and most final stage
Also comprise three lead-in wires,
The described first order is beaten and is gone between by level assembly be connected with one,
Described most final stage is beaten and is connected successively by level assembly, described transition piece assembly and second lead-in wire,
Collect level assembly to go between be connected with the 3rd;
Some described resistance is arranged on outside two pieces of described ceramic wafers, and each described beating takes a level assembly two ends described resistance all in parallel.
2. a kind of dynode electron multiplier as claimed in claim 1, is characterized in that, also comprise support tube and fastening swivel nut,
Described support tube is identical with the number of described screw with the number of described fastening swivel nut, and described screw is connected with described fastening swivel nut through two pieces of described ceramic wafers, described support tube between two pieces of described ceramic wafers, be enclosed within described screw.
3. a kind of dynode electron multiplier as claimed in claim 1, it is characterized in that, also comprise ring surface, extend inside the openend of described ring surface around described sleeve pipe, described cannelure is relatively set with two grooves, and two described grooves are slidably matched with two described projections respectively.
4. the installation method of a kind of dynode electron multiplier as claimed in claim 1, is characterized in that, comprise the following steps:
(1) with alcohol or all spare and accessory parts of acetone ultrasonic cleaning electron multiplier;
(2) on two pieces of ceramic wafers, the fixing hole installed for each assembly is beaten;
(3) according to the fixing hole position on ceramic wafer, transition piece assembly and collector assembly are arranged on one piece of ceramic wafer;
(4) some dynode assemblies to be arranged on one piece of ceramic wafer in corresponding fixing hole, level assembly is taken to be fixed on the positioning with another block ceramic wafer to transition piece assembly, collection level assembly and each beating again, each beating is connected by between level assembly, head and the tail two are beaten and are respectively the first order by level assembly and beat and beat by level assembly by level assembly and most final stage, and most final stage is beaten and connected with transition piece assembly by level assembly;
(5) support tube and ceramic wafer are vertically set between two pieces of ceramic wafers, screw is connected with fastening swivel nut with support tube through the location hole on ceramic wafer, is tightened together by two pieces of ceramic wafers;
(6) each beating takes a resistance all in parallel on level assembly, and each described distribution of resistance is in the outside of two pieces of described ceramic wafers;
(7) three lead-in wires are beaten with the first order by level assembly, transition piece assembly respectively and collect level assembly and be connected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576356.4A CN105225915A (en) | 2015-09-11 | 2015-09-11 | A kind of dynode electron multiplier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576356.4A CN105225915A (en) | 2015-09-11 | 2015-09-11 | A kind of dynode electron multiplier |
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| CN105225915A true CN105225915A (en) | 2016-01-06 |
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| CN201510576356.4A Pending CN105225915A (en) | 2015-09-11 | 2015-09-11 | A kind of dynode electron multiplier |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001969A (en) * | 2018-07-02 | 2018-12-14 | 北京无线电计量测试研究所 | A kind of microchannel plate electron multiplier |
| CN109243959A (en) * | 2018-09-07 | 2019-01-18 | 西安交通大学 | A kind of structure and assemble method of electron multiplier |
| CN110828259A (en) * | 2019-10-31 | 2020-02-21 | 西安交通大学 | Tool and method for quickly and accurately assembling electron multiplier |
| CN112185784A (en) * | 2020-08-27 | 2021-01-05 | 西安交通大学 | Assembly tool and assembly method for dynode of electron multiplier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3684910A (en) * | 1970-05-18 | 1972-08-15 | Itt | Electron multiplier having dynode modules |
| CN101111923A (en) * | 2005-01-25 | 2008-01-23 | 浜松光子学株式会社 | Electron multiplier unit and photomultiplier including the same |
| CN101385115A (en) * | 2005-03-31 | 2009-03-11 | 浜松光子学株式会社 | Photomultiplier |
| CN104465294A (en) * | 2014-11-13 | 2015-03-25 | 西安交通大学 | Dynamic multi-stage serial connection coaxial butterfly-type channel dynode electron multiplier |
-
2015
- 2015-09-11 CN CN201510576356.4A patent/CN105225915A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3684910A (en) * | 1970-05-18 | 1972-08-15 | Itt | Electron multiplier having dynode modules |
| CN101111923A (en) * | 2005-01-25 | 2008-01-23 | 浜松光子学株式会社 | Electron multiplier unit and photomultiplier including the same |
| CN101385115A (en) * | 2005-03-31 | 2009-03-11 | 浜松光子学株式会社 | Photomultiplier |
| CN104465294A (en) * | 2014-11-13 | 2015-03-25 | 西安交通大学 | Dynamic multi-stage serial connection coaxial butterfly-type channel dynode electron multiplier |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109001969A (en) * | 2018-07-02 | 2018-12-14 | 北京无线电计量测试研究所 | A kind of microchannel plate electron multiplier |
| CN109243959A (en) * | 2018-09-07 | 2019-01-18 | 西安交通大学 | A kind of structure and assemble method of electron multiplier |
| CN110828259A (en) * | 2019-10-31 | 2020-02-21 | 西安交通大学 | Tool and method for quickly and accurately assembling electron multiplier |
| CN110828259B (en) * | 2019-10-31 | 2021-01-19 | 西安交通大学 | Tool and method for quickly and accurately assembling electron multiplier |
| CN112185784A (en) * | 2020-08-27 | 2021-01-05 | 西安交通大学 | Assembly tool and assembly method for dynode of electron multiplier |
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Application publication date: 20160106 |
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