Karlsruhe 2024 – scientific programme
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T: Fachverband Teilchenphysik
T 108: Methods in particle physics 6
T 108.1: Talk
Friday, March 8, 2024, 09:00–09:15, Geb. 20.30: 2.066
A novel approach to radon source production: 226Ra implantation at ISOLDE facility at CERN — •giovanni volta, hardy simgen, and florian jörg — Max-Planck-Institut für Kernphysik, Heidelberg, Germany
Reliable radon sources are a key ingredient for calibrating and developing detectors for the radioactive noble gas 222Rn. A novel approach to producing such sources is the implantation of 226Ra into a carrier substrate at the ISOLDE facility at CERN. In light of the results of the first implantation tests of 226Ra in a stainless steel sample, performed in 2017, in November 2023, a new implantation campaign has been performed. The aim was the implantation of at most 5 Bq of 226Ra into different materials: Not only stainless steel but also other metals (copper, titanium, lead) as well as insulators (PTFE, acrylic, glass) and semiconductors (germanium and silicon). Eleven samples were implanted with the desired 226Ra activity. The ISOLDE facility, operation, and preliminary characterization of these samples will be presented in this talk.
Keywords: 226Ra implantation; Dark Matter; Detector calibration