https://doi.org/10.1140/epjd/s10053-025-00972-5
Regular Article
Measuring the 208Tl range of E ≤ 116 keV in silver films
1
Nuclear Research Center NEGEV, P.O. Box 9001, 84190, Beer-Sheva, Israel
2
Physics Department, Ben-Gurion University of the Negev, 84105, Beer-Sheva, Israel
Received:
7
October
2024
Accepted:
25
February
2025
Published online:
7
April
2025
In this study, measurements of the effective range of 208Tl ions (E ≤ 116 keV) emanating from the recoil daughters from 220Rn were carried out. The target used was a set of thin silver films. The amount of the stopped 208Tl ions in each film was determined by measuring the short-lived (~3 m) 
activity of 208Tl, where the effective range was found to be 11.8 ± 2.36 µg/cm2. This value is in agreement (~20%) with Monte Carlo simulations using SRIM-TRIM software. These simulations also included the attenuation of 208Tl ions caused by the interaction of the ions with the Al sheet holding the 208Tl ion source. After adding the weakened 208Tl source to the simulation, the resulting width of the simulated spectrum was in agreement with experiment (to within 4.5%).
Supplementary Information The online version contains supplementary material available at https://doi.org/10.1140/epjd/s10053-025-00972-5.
© The Author(s) 2025
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