It is possible to use a Geiger Muller Tube to measure the activity of Cobalt 60 (Co 60)?
2007-01-30 11:48:46 · 3 answers · asked by Emily1318 1 in Science & Mathematics ➔ Physics
i imagine you want to know the total activity of the source, assuming the gamma ray flux is isotropic.Take an average count at a given distance r. Knowing the effective area of your GM tube you can work out the total flux over 4*pi*r^2. Also you need to know the 'dead time' of your GM tube..typically of the order of 100microseconds ..you need to multiply this by your count rate to get the 'actual' count. Alternatively knowing the mass of your Co 60 source, why not look up the tables which give the activity in Bq/mole
2007-01-30 12:19:42 · answer #1 · answered by troothskr 4 · 0⤊ 0⤋
Yeah, but I wouldn't go near it! They use that for radiation therapy, the machine is kept in a specially insulated room, it is remotely controlled, and no one is allowed near it when it is exposed (except of course the patient)
2007-01-31 11:29:19 · answer #2 · answered by Pete 4 · 0⤊ 0⤋
of course it is!
2007-01-30 19:52:44 · answer #3 · answered by falkirkbairn1703 1 · 0⤊ 0⤋