Investigation of the molybdenum oxide purification for the AMoRE experiment

• Published in: Journal of radioanalytical and nuclear chemistry Vol. 314; no. 3; pp. 1695 - 1700
• Main Authors: Gileva, Olga, Aryal, Pabitra, Karki, Sujita, Kim, HongJoo, Kim, Yeongduk, Milyutin, Vitaly, Park, HyangKyu, Shin, KeonAh
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.12.2017; Springer; Springer Nature B.V
• Subjects: Barium; Beta decay; Calcium chloride; Chemistry; Chemistry and Materials Science; Coprecipitation; Detection equipment; Diagnostic Radiology; Hadrons; Heavy Ions; Inorganic Chemistry; Isotopes; Molybdenum; Molybdenum oxides; Nuclear Chemistry; Nuclear Physics; Physical Chemistry; Precipitation (Meteorology); Purification; Radioisotopes; Single crystals; Strontium; Sublimation; Thorium; Uranium; Neutrinoless double beta (0νββ) decay; Molybdenum; Sublimation; Wet chemistry purification
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-017-5568-4

The presented study reports on the purification of molybdenum oxide, which is one of the important tasks of the Advanced Mo based Rare process Experiment in searching for the neutrinoless double beta (0νββ) decay of 100 Mo. Purified MoO 3 powder is used as initial material for further growth of radiopure monocrystals. As purification technique, double sublimation, co-precipitation with calcium chloride carrier, and precipitation of polyammonium molybdate from acidic media were used. Concentrations of impurities like Sr, Ba, Pb, Th and U were measured by ICP-MS and radioactive isotopes were checked by a HPGe detector at the YangYang underground Laboratory in Korea.