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BEGIN:VEVENT
UID:DSC-22622
DTSTART;TZID=Europe/Berlin:20260202T150000
SEQUENCE:1770014323
TRANSP:OPAQUE
DTEND;TZID=Europe/Berlin:20260202T160000
URL:https://dresden-science-calendar.de/calendar/de/detail/22622
LOCATION:TUD Andreas-Schubert-Bau\, Zellescher Weg 1901069 Dresden
SUMMARY:Seminar: Enhancing Electron Yield via Analytical and Simulation-Bas
 ed Approaches
CLASS:PUBLIC
DESCRIPTION:Speaker: \nInstitute of Speaker: \nTopics:\nPhysik\, Willkommen
 \n Location:\n  Name: TUD Andreas-Schubert-Bau (E19)\n  Street: Zellescher
  Weg 19\n  City: 01069 Dresden\n  Phone: \n  Fax: \nDescription: <p>Within
  the framework of the EBENE project\, samples are activated at the IKTP in
  a neutron reference field with a fluence rate of 2·10⁵ cm⁻² s⁻¹.
  Depending on the composition and mass of the sample\, activities of only 
 a few Becquerel are achieved for certain nuclides of interest. To determin
 e the activity\, coincident β- and γ- emissions are detected in separate
  detectors. This method enables absolute activity determination without re
 quiring  knowledge of the individual detector efficiencies.<br> The prima
 ry limitation is the low number of detected β-particles\, due to their sh
 ort range in matter. In particular\, self-absorption within the sample red
 uces the number of detectable events significantly. The electron transport
  is investigated by analytical methods and simulations. Those methods reve
 al opportunities to improve detection efficiency. Therefore\, two measures
  were taken to maximize the detection efficiency of β-particles. First\, 
 the sample is structured to increase the area\, promoting the generation a
 nd emission of β-particles near the surface. Second\, the sample is embed
 ded directly<br> within a scintillator matrix and irradiated simultaneousl
 y with the scintillator. Experimentally\, this led to a 20% increase in de
 tected events compared to a smooth reference sample. Analysis of electron 
 transport in the structured sample reproduces the measured energy depositi
 on distribution and identifies further opportunities for optimization.</p>
DTSTAMP:20260730T201232Z
CREATED:20260124T063614Z
LAST-MODIFIED:20260202T063843Z
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