DE1539957C - Photo electron multiplier system - Google Patents
Photo electron multiplier systemInfo
- Publication number
- DE1539957C DE1539957C DE19661539957 DE1539957A DE1539957C DE 1539957 C DE1539957 C DE 1539957C DE 19661539957 DE19661539957 DE 19661539957 DE 1539957 A DE1539957 A DE 1539957A DE 1539957 C DE1539957 C DE 1539957C
- Authority
- DE
- Germany
- Prior art keywords
- photocathode
- sheets
- blind
- channels
- dynodes
- 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.)
- Expired
Links
- 239000003513 alkali Substances 0.000 claims 3
- 239000000969 carrier Substances 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- 150000004820 halides Chemical class 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 230000003321 amplification Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 230000003014 reinforcing Effects 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 1
Description
Elektronen in jeweils einem bestimmten Kanal bleiben, so müssen der Neigungswinkel β und die Anordnung der Dynoden sorgfältig nach elektronenoptischen Gesichtspunkten ausgeführt werden. Um die gewünschte Führung der Elektronen zu erreichen, müssen für 2V-Kanäle N+l Elektroden vorhanden sein.If electrons stay in a certain channel, the angle of inclination β and the arrangement of the dynodes must be carefully designed from an electron-optical point of view. In order to achieve the desired guidance of the electrons, N + 1 electrodes must be available for 2V channels.
Fig. 3 zeigt ein praktisches Beispiel für einen Photoelektronen-Vervielfacher nach dem Schema der Fig. 1 dargestellt, jedoch mit drei Stufen von Dynodenblechen. Hier sind anstelle der Bezugszeichen genaue Konstruktionsmaße angegeben. Die Abstände und Längenmaße sind relative Angaben, die alle mit einem beliebigen, aber gemeinsamen Faktor multipliziert werden können. Für den Winkel λ wurde 37° und für β 15° vorgegeben. Für höhere Verstärkungen können weitere Verstärkerdynoden hineinandergeschaltet werden.FIG. 3 shows a practical example of a photoelectron multiplier according to the scheme of FIG. 1, but with three stages of dynode sheets. Exact construction dimensions are given here instead of the reference symbols. The distances and lengths are relative specifications, which can all be multiplied by any common factor. 37 ° was specified for the angle λ and 15 ° for β. Additional amplifier dynodes can be switched in for higher gains.
Hierzu 1 Blatt Zeichnungen1 sheet of drawings
Claims (2)
Anspruch 1, dadurch gekennzeichnet, daß die 25 Auf die Bleche 1 der Photokathode ist eine emis-Bleche (1) der Photokathode eine Oberfläche aus sionsfähige Schicht, z. B. CsTe, einem Alkalihalo-CsTe oder einem Alkalihalogenid besitzen. genid oder eine Alkali-Antimon-Verbindung aufgebracht. Die durch das einfallende Licht aus diesen ausgelösten Photoelektronen werden zu den Dy-2. Photoelectron multiplier system according to FIG. 3 shows a practical embodiment.
Claim 1, characterized in that the 25 On the sheets 1 of the photocathode is an emis sheet (1) of the photocathode a surface of sionable layer, for. B. CsTe, an alkali halo-CsTe or an alkali halide. genid or an alkali-antimony compound is applied. The photoelectrons released by the incident light become the dy-
Flächenelementen der Photokathode austreten, zu Die Trägerbleche 1 der Photokathode sind so ausverstärken und einzelnen, den jeweiligen Flächen- gelegt, daß sie — von der Lichteinfallsrichtung aus elementen zugeordneten Anoden zuzuführen. gesehen — eine geschlossene Fläche bilden. DiesThe object of the invention is to arrange photoelectrons, suction nets 7 of high transparency, which receive the potential of the following row from individual juxtaposed 55.
Surface elements of the photocathode emerge, to The carrier plates 1 of the photocathode are reinforced and placed individually on the respective surfaces that they - from the direction of incidence of light from the elements assigned to anodes. seen - form a closed surface. this
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0048548 | 1966-03-01 | ||
DEF0048548 | 1966-03-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1539957A1 DE1539957A1 (en) | 1969-10-02 |
DE1539957B2 DE1539957B2 (en) | 1973-02-15 |
DE1539957C true DE1539957C (en) | 1973-08-30 |
Family
ID=
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