Combination of an Electron Spectrometer with an Ion Trap: first results for H- + hv and H- + H

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10109561" target="_blank" >RIV/00216208:11320/11:10109561 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Combination of an Electron Spectrometer with an Ion Trap: first results for H- + hv and H- + H

Popis výsledku v původním jazyce

A new instrument is under development which is able to guide and store anions and to detect simultaneously electrons using the superposition of suitable RF and magnetic fields. It is based on a modular design combining (i) an rf storage ion source with mass spectrometer, (ii) an octopole ion guide or alternatively a temperature variable 22PT (iii) an electron spectrometer based on magnetic adiabatic collimation, and (iv) a channeltron electron multiplier (CEM) detector. All modules are transparent in axial direction and, therefore, the ions can be exposed to a beam of photons or of neutrals, e.g. also an H-atom beam. This allows us to study photo detachment of electrons from trapped anions and the interaction of anions with neutrals. A first successfultest has been the observation of the decay time of an H- ensemble exposed to a 532 nm laser. At laser powers of a few mW, storage times are a few s in accordance with the known detachment cross section. Similar loss rates have been measu

Název v anglickém jazyce

Combination of an Electron Spectrometer with an Ion Trap: first results for H- + hv and H- + H

Popis výsledku anglicky

A new instrument is under development which is able to guide and store anions and to detect simultaneously electrons using the superposition of suitable RF and magnetic fields. It is based on a modular design combining (i) an rf storage ion source with mass spectrometer, (ii) an octopole ion guide or alternatively a temperature variable 22PT (iii) an electron spectrometer based on magnetic adiabatic collimation, and (iv) a channeltron electron multiplier (CEM) detector. All modules are transparent in axial direction and, therefore, the ions can be exposed to a beam of photons or of neutrals, e.g. also an H-atom beam. This allows us to study photo detachment of electrons from trapped anions and the interaction of anions with neutrals. A first successfultest has been the observation of the decay time of an H- ensemble exposed to a 532 nm laser. At laser powers of a few mW, storage times are a few s in accordance with the known detachment cross section. Similar loss rates have been measu

Druh

D - Stať ve sborníku

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Book of Contributed Papers: 18th Symposium on Application of Plasma Processes and Workshop on Plasmas as a Planetary Atmospheres Mimics

ISBN

978-80-89186-77-8

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

252-256

Název nakladatele

Department of Experimental Physics, Faculty of Mathematics, Physics and Informatics, Comenius University in Bratislava

Místo vydání

Bratislava

Místo konání akce

Vrátna

Datum konání akce

15. 1. 2011

Typ akce podle státní příslušnosti

EUR - Evropská akce

Kód UT WoS článku

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