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  Bound beta decay experiment on Tl-205  Not logged in ELOG logo
Message ID: 139     Entry time: Fri Apr 3 17:55:13 2020
Author: Shahab 
Category: Runs 
Subject: Nice picture from 205-Tl 
In this high contrast Schottky recording, the main three frequency peaks are resolved w.r.t. time from left to right:

203 Hg 80 +, 200 Hg 79+ and 205 Tl 81+

There are also some spurs visible, whose nature is not 100% sure. One possible explanation can be:

Since this is taken during the storage time (gas target still off), we have no separation between parent and daughter ions, the daughter 205 Pb 81+ basically has the same revolution frequency as parent. It is a possibility that after the decay, daughter ions are slowly cooled back to the nominal frequency. Daughter ions are highly charged and have a high velocity, so single ion sensitivity is expected. They come from all directions, but Schottky measures only the longitudinal plane. Symmetric spurs can hence be an indication of this.
Attachment 1: Tl-daughter_spurs.PNG  740 kB  Uploaded Fri Apr 3 18:55:29 2020  | Hide | Hide all
Tl-daughter_spurs.PNG
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