Photoelectron Energy Distribution from an Au Target Measured by a Gridless Faraday Cup

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F13%3A10192229" target="_blank" >RIV/00216208:11320/13:10192229 - isvavai.cz</a>
Result on the web
<a href="http://www.mff.cuni.cz/veda/konference/wds/proc/pdf13/WDS13_207_f2_Nouzak.pdf" target="_blank" >http://www.mff.cuni.cz/veda/konference/wds/proc/pdf13/WDS13_207_f2_Nouzak.pdf</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Photoelectron Energy Distribution from an Au Target Measured by a Gridless Faraday Cup
Original language description
In the interstellar and interplanetary space, small objects of micrometer size-dust grains-are present. These grains are charged by impact of particles from the Sun: electrons, ions, and UV photons. In our laboratory, we study charging of a single grainby UV irradiation. Our photon source (differentially pumped discharge lamp) works with noble gases (He in our case), and can operate with different intensity ratios of emission lines (i.e., HeI/HeII ratios). As the first step to control the presence of HeI (21.22 eV) and HeII (40.82 eV) lines and corresponding intensity ratios, we introduce simple measurements of photoelectron energy distribution using a gridless Faraday cup (FC). In this paper, our experimental results confirm a presence of HeI line inthe discharge and its dependence on the magnitude of the discharge current and on pressure conditions in the differential pumping stages of the lamp. Measured energy distribution characteristics indicate a presence of photoemitted electr
Czech name
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Czech description
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Project
<a href="/en/project/GAP209%2F11%2F1412" target="_blank" >GAP209/11/1412: Dust and its charging in the space: Laboratory simulations</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2013
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
WDS'13 Proceedings of Contributed Papers: Part II - Physics of Plasmas and Ionized Media
ISBN
978-80-7378-251-1
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
48-53
Publisher name
Matfyzpress
Place of publication
Praha
Event location
Praha
Event date
Jun 4, 2013
Type of event by nationality
EUR - Evropská akce
UT code for WoS article
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