CN105206486A - Production technology for dynode shell - Google Patents
Production technology for dynode shell Download PDFInfo
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- CN105206486A CN105206486A CN201510576617.2A CN201510576617A CN105206486A CN 105206486 A CN105206486 A CN 105206486A CN 201510576617 A CN201510576617 A CN 201510576617A CN 105206486 A CN105206486 A CN 105206486A
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- dynode
- shell
- inner lining
- lining plate
- production technology
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Abstract
The invention discloses a production technology for a dynode shell. The technology includes the steps of 1, machining a lining piece, wherein the lining piece is machined according to a plane drawing of the dynode shell of an electron multiplier, folding lines are marked on the lining piece, and it is guaranteed that the lining piece corresponds to the structure of the dynode shell after being folded; 2, cleaning the lining piece; 3, plating the surface of the lining piece with a film with a secondary electron emission function so as to form a dynode shell piece structure; 4, forming the dynode shell of the electron multiplier, wherein the dynode shell piece structure is folded along the folding lines designed in advance to form the dynode shell. The technology can meet the film plating requirement of a dynode of the electron multiplier and effectively solve the problems of poor film formation uniformity and stability in dynode film plating.
Description
Technical field
The present invention relates to electron multiplier manufacturing technology field, especially a kind of dynode shell production technology.
Background technology
The performance of electron multiplier decides the useful life of atomic clock, and dynode inner surface plated film is the core technology of electron multiplier.Current plated film mode is that dynode shell after shaping carries out plated film, but dynode shell is trough body structure, plated film to make dynode shell surfaces externally and internally film forming even, directly affects electron multiplier performance, electron multiplier secondary function film can not be met and be coated with requirement.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, propose a kind of dynode shell production technology, the plated film requirement of electron multiplier dynode can be met, effectively solve in dynode plated film and become the problem such as film uniformity, stability.
In order to realize foregoing invention object, the invention provides following technical scheme:
A kind of dynode shell production technology, comprises the following steps:
(1) inner lining plate processing: according to the plane graph paper conversion inner lining plate of the dynode shell of electron multiplier, inner lining plate marks fold line, ensures that inner lining plate is corresponding with the structure of described dynode shell after folding;
(2) inner lining plate is cleaned;
(3) be coated with on the surface at inner lining plate there is secondary function film, make dynode casing sheets structure;
(4) the outer casing forming of electron multiplication dynode: by dynode casing sheets structure, become dynode shell according to the fold line designed in advance.
Further, laser beam is utilized to mark fold line in described step (1).
Further, in described step (2), inner lining plate first uses washed with de-ionized water, more respectively with analyzing pure acetone and analyzing each Ultrasonic Cleaning 15min of absolute alcohol, then rinse well with the pure absolute ethyl alcohol of analysis, with the wiping of chipless cleansing tissue to surperficial no marking, scratch and drop remaining trace.
A kind of dynode shell of the present invention production technology, can meet the plated film requirement of electron multiplier dynode, effectively solves in dynode plated film and becomes the problem such as film uniformity, stability; The density on surface is high, and anti-Ions Bombardment significantly can be high, effectively can improve the performance of electron multiplier dynode.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the inner lining plate described in a kind of dynode shell production technology of the present invention;
Fig. 2 is the schematic front view of the dynode shell described in a kind of dynode shell production technology of the present invention;
Fig. 3 is for looking schematic diagram schematic diagram in a left side for the dynode shell described in a kind of dynode shell production technology of the present invention;
Fig. 4 is the schematic top plan view of the dynode shell described in a kind of dynode shell production technology of the present invention;
The schematic perspective view of the dynode shell described in Fig. 5 a kind of dynode shell production technology of the present invention.
Embodiment
Describe the present invention below, 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 shell production technology as Figure 1-5, comprises the following steps:
(1) inner lining plate processing: according to the planar design drawing of electron multiplier dynode shell, processing plane inner lining plate, material is No. 304 stainless steels, thickness is 0.1mm, the roughness on requirement plane inner lining plate surface is 15nm, utilizes laser beam to cut out fold line, as shown in Figure 1, wherein thick black solid line will be cut logical, and fine line will mark cut channel;
(2) inner lining plate is cleaned: No. 304 stainless steel inner lining sheets are put into clean vessel, clean with deionized water rinsing, again No. 304 stainless steel inner lining sheets are 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, with the wiping of chipless cleansing tissue to surperficial no marking, scratch and drop remaining trace;
(3) clean vacuum room: open vacuum chamber, removes the pollutant in the rete and air come off in vacuum chamber, then dips in absolute ethyl alcohol wiped clean vacuum chamber inwall with absorbent gauze; No. 304 stainless steel inner lining sheets after step (2) being cleaned are put in the substrate frame of vacuum chamber;
(4) vacuum chamber: open mechanical pump and in advance vacuum chamber is evacuated to 1Pa, then open molecular pump, opens the high threshold of molecular pump, by vacuum chamber to 3.0 × 10 after molecular pump smooth running
-5pa, then to heat after inner lining plate to 400 DEG C insulation 1 hour;
(5) secondary thin film deposition: be coated with magnesia film on No. 304 stainless steel inner lining sheets, thickness is 200nm, terminates sample and is coated with, make dynode casing sheets structure;
(6) the outer casing forming of electron multiplication dynode: according to electron multiplier dynode design drawing, as Fig. 2 to Fig. 5, dynode casing sheets structure step (5) be coated with, folds, be folded into dynode shell.
A kind of dynode shell of the present invention production technology, can meet the plated film requirement of electron multiplier dynode, effectively solves in dynode plated film and becomes the problem such as film uniformity, stability; The density on surface is high, and anti-Ions Bombardment significantly can be high, effectively can improve the performance of electron multiplier dynode.
Claims (3)
1. a dynode shell production technology, is characterized in that, comprises the following steps:
(1) inner lining plate processing: according to the plane graph paper conversion inner lining plate of the dynode shell of electron multiplier, inner lining plate marks fold line, ensures that inner lining plate is corresponding with the structure of described dynode shell after folding;
(2) inner lining plate is cleaned;
(3) be coated with on the surface at inner lining plate there is secondary function film, make dynode casing sheets structure;
(4) the outer casing forming of electron multiplication dynode: by dynode casing sheets structure, become dynode shell according to the fold line designed in advance.
2. a kind of dynode shell production technology as claimed in claim 1, it is characterized in that, described step utilizes laser beam to mark fold line in (1).
3. a kind of dynode shell production technology as claimed in claim 1, it is characterized in that, in described step (2), inner lining plate first uses washed with de-ionized water, again respectively with analyzing pure acetone and analyzing each Ultrasonic Cleaning 15min of absolute alcohol, then rinse well with the pure absolute ethyl alcohol of analysis, with the wiping of chipless cleansing tissue to surperficial no marking, scratch and drop remaining trace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576617.2A CN105206486A (en) | 2015-09-11 | 2015-09-11 | Production technology for dynode shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576617.2A CN105206486A (en) | 2015-09-11 | 2015-09-11 | Production technology for dynode shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105206486A true CN105206486A (en) | 2015-12-30 |
Family
ID=54954095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510576617.2A Pending CN105206486A (en) | 2015-09-11 | 2015-09-11 | Production technology for dynode shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105206486A (en) |
Cited By (1)
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119038A (en) * | 1959-05-21 | 1964-01-21 | Bush And Rank Cintel Ltd | Electron multiplier |
| CN103215543A (en) * | 2013-04-22 | 2013-07-24 | 兰州空间技术物理研究所 | Method for preparing film system with secondary electron emission function |
| CN104362058A (en) * | 2014-10-15 | 2015-02-18 | 兰州空间技术物理研究所 | Curved surface film forming method for dynode of electron multiplier |
-
2015
- 2015-09-11 CN CN201510576617.2A patent/CN105206486A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119038A (en) * | 1959-05-21 | 1964-01-21 | Bush And Rank Cintel Ltd | Electron multiplier |
| CN103215543A (en) * | 2013-04-22 | 2013-07-24 | 兰州空间技术物理研究所 | Method for preparing film system with secondary electron emission function |
| CN104362058A (en) * | 2014-10-15 | 2015-02-18 | 兰州空间技术物理研究所 | Curved surface film forming method for dynode of electron multiplier |
Cited By (1)
| 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 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
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| RJ01 | Rejection of invention patent application after publication |