[ RadSafe ] A radioactive thing

[Brennan, Mike (DOH)]

Recently we picked up something that triggered the rad monitor at a scrap yard.  It I about 1/2 inches X 2 inches (1.5 cm X 5 cm), and is described as "like a gum wrapper foil".  It is about 100 mR/h on near-contact.  The isotope appears to be Ra-226.  It appears that the radium can come off, or perhaps tiny pieces can break off.  

Does anyone know what it is?