Nuclear gigs, help

1. May 20, 2004

bayan

I wanted to know how to find the mass of a radioactive sample given its Energy "MeV" and and decay rate "Bq"?
Can you please give me a hand with this one by giving me the formula.

Please dont solve an example because this is part of my case study.

Thanks alot

2. May 20, 2004

Chi Meson

Some details: is the radioactive object moving? If not, then it's energy (in eV) corresponds to its mass using a certain well-known equation (E=mc^2). BUt in order to get kg, you need to convert eV to joules (1eV = 1.602 x 10^-19 joules).
If the radioactive sample is moving then you need to do a little more.

I'm not familiar with decay rate as "Bq." Usually the decay constant is represented by a greek "lambda." Could you specify what the B and the q represent?

3. May 20, 2004

bayan

thanx

I thought there was a harder way.

i had that in mind but usualy what i think at the end i might get the same answer but since the formula is diffrent i lose marks.