Speaker
Krzysztof Szczepaniec
(INFN Laboratori Nazionali del Gran Sasso)
Description
The SABRE North experiment at LNGS is developing ultra-high radiopurity NaI(Tl) detectors to search for dark matter.
Radio-purity, especially at the very low level of content required by DM searches, is an extremely challenging task, only partially solved so far for NaI(Tl) crystals.
To achieve its goal, SABRE North utilizes the technique called Zone Refining for NaI powder purification.
Poster presents the mathematical model, developed to describe the purification process, and comparision to the results of the Zone Refining commissioning and production runs conducted prior to crystal growth. These results can be used for production of ultra-high purity crystals for dark matter search, where low backgrounds are crucial.
Author
Krzysztof Szczepaniec
(INFN Laboratori Nazionali del Gran Sasso)