Author/Authors :
Grigoriev، نويسنده , , D.N and Kazanin، نويسنده , , V.F. and Kuznetcov، نويسنده , , G.N. and Novoselov، نويسنده , , I.I. and Schotanus، نويسنده , , P. and Shavinski، نويسنده , , B.M. and Shepelev، نويسنده , , S.N. and Shlegel، نويسنده , , V.N. and Vasiliev، نويسنده , , Ya.V.، نويسنده ,
Abstract :
We describe some cases of unusual internal radioactive background in BGO crystals. Routinely produced at the Nikolaev Institute of Inorganic Chemistry during nearly a quarter of a century, BGO crystals have low radioactive background caused by 207Bi contamination. However, some BGO crystals incidentally have higher internal radioactive background with activity up to 10 Bq/kg. This background is pure alpha radioactivity. It is caused by 210Po contamination and has technogenic origin.
Keywords :
Radioactive background , BGO , Neorganic scintillators , Photons detector
