Purification of rare earth elements for

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Purification of rare earth elements for low-background experiments Roman Boiko National University of Life and Environmental Sciences of Ukraine, Institute for Nuclear Research, Kyiv, Ukraine outline Introduction Rare earth elements What

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01
Purification of rare earth elements for low-background experiments Roman Boiko
National University of Life and Environmental Sciences of Ukraine,
Institute for Nuclear Research,
Kyiv, Ukraine<br>
02
outline Introduction
Rare earth elements
What are rare earth elements?
Properties
Technology
Purification of REE at LNGS
Purification of Nd and Gd
Purification of Ce
Conclusions 2<br>
03
Introduction Double beta decay is one of the top scientific interest in modern astroparticle physics
There are many potentially 2 active isotopes among the rare earth elements (cerium, neodymium, samarium, gadolinium, dysprosium, erbium and ytterbium)
The most interesting are 136Ce, 152,160Gd and 150Nd
Such a kind of experiments requires low level of background (the lower, the better)
All materials and even chemically individual compounds are always mixture. Original source of all impurities is nature (subsoil resources, air) The most dangerous radio nuclei are K, Rb, Cs – Ra – Ac, La, Sm, Lu – Th, U
Purification of materials and compounds is important stage in low counting experiments 3<br>