Author/Authors :
Johnson، نويسنده , , Michael and Benziger، نويسنده , , Jay and Stoia، نويسنده , , Catherine and Calaprice، نويسنده , , Frank and Chen، نويسنده , , Mark and Darnton، نويسنده , , Nicholas and Loeser، نويسنده , , Fred and Bruce Vogelaar، نويسنده , , R، نويسنده ,
Abstract :
A technique for producing a radioactive source suitable for use in a low-background liquid scintillation detector is described. 222Rn was concentrated from air to prepare liquid scintillator sources spiked with 106 Bq/m3 of the radioisotope. Air was stripped of CO2 and water vapor, and passed over cooled charcoal which trapped the radon. The accumulated radon was desorbed and transferred into a pseudocumene-based scintillator. These sources have been used for position calibration in the Counting Test Facility (a 5 m3 spherical liquid scintillation detector) at the Laboratori Nazionali del Gran Sasso.
