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  • The article deals with the concept of secondary electron scintillation detector in Environmental SEM. For secondary electrons detection by scintillation detector, the voltage of about 10 kV attached to the conductive surface layer of the scintillator accelerates secondary electrons to give them sufficient energy for efficient scintillation. However, presence of this voltage requires pressure less than 5 Pa in the scintillator room to avoid discharges. Therefore, our design of secondary electron detector is based on scintillator location in a room with low pressure. This room is separated from the specimen chamber by the system of pressure limiting apertures that allow pass secondary electrons and inhibit the gas flow. The rooms between the apertures and scintillator are vacuum pumped. The results show that this detector provides new possibilities of electrons detection in Environmental SEM.
  • The article deals with the concept of secondary electron scintillation detector in Environmental SEM. For secondary electrons detection by scintillation detector, the voltage of about 10 kV attached to the conductive surface layer of the scintillator accelerates secondary electrons to give them sufficient energy for efficient scintillation. However, presence of this voltage requires pressure less than 5 Pa in the scintillator room to avoid discharges. Therefore, our design of secondary electron detector is based on scintillator location in a room with low pressure. This room is separated from the specimen chamber by the system of pressure limiting apertures that allow pass secondary electrons and inhibit the gas flow. The rooms between the apertures and scintillator are vacuum pumped. The results show that this detector provides new possibilities of electrons detection in Environmental SEM. (en)
  • Článek se zabývá konceptem scintilačního detektoru sekundárních elektronů v environmentální SEM. Pro detekci sekundárních elektronů scintilačním detektorem musí být na povrchu scintilátoru napětí přibližně 10 kV, které urychluje sekundární elektrony na energii dostatečnou k účinné scintilaci. Avšak přítomnost tohoto napětí vyžaduje k zamezení výbojů v plynu tlak menší než 5 Pa v prostoru scintilátoru. Konstrukce našeho detektoru je proto založena na umístění scintilátoru do prostoru s nízkým tlakem. Tento prostor je oddělen od komory vzorku systémem aperturních clon, které propouští sekundární elektrony a omezují proudění plynu. Prostory mezi clonkami a scintilátorem jsou vakuově čerpány. Výsledky ukazují, že tento detektor poskytuje nové možnosti detekce elektronů v environmentálním SEM. (cs)
Title
  • Scintillation Detector in Environmental SEM
  • Scintilační detektor v environmentální SEM (cs)
  • Scintillation Detector in Environmental SEM (en)
skos:prefLabel
  • Scintillation Detector in Environmental SEM
  • Scintilační detektor v environmentální SEM (cs)
  • Scintillation Detector in Environmental SEM (en)
skos:notation
  • RIV/68081731:_____/05:00022402!RIV06-GA0-68081731
http://linked.open.../vavai/riv/strany
  • 44
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • P(GA102/05/0886)
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
http://linked.open.../riv/druhVysledku
http://linked.open...iv/duvernostUdaju
http://linked.open...titaPredkladatele
http://linked.open...dnocenehoVysledku
  • 541969
http://linked.open...ai/riv/idVysledku
  • RIV/68081731:_____/05:00022402
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • scintillation detector; secondary electrons (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...ontrolniKodProRIV
  • [4CD623C82FB2]
http://linked.open...v/mistoKonaniAkce
  • Davos
http://linked.open...i/riv/mistoVydani
  • Villigen
http://linked.open...i/riv/nazevZdroje
  • Proceedings - Microscopy Conference 2005 - Dreiländertagung /6./
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
http://linked.open...cetTvurcuVysledku
http://linked.open...vavai/riv/projekt
http://linked.open...UplatneniVysledku
http://linked.open...iv/tvurceVysledku
  • Autrata, Rudolf
  • Jirák, Josef
  • Skřivánek, Jiří
http://linked.open...vavai/riv/typAkce
http://linked.open.../riv/zahajeniAkce
issn
  • 1019-6447
number of pages
http://purl.org/ne...btex#hasPublisher
  • Paul Scherrer Institute
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