a What is the energy of neutrinos from electron capture tra

. (a) What is the energy of neutrino(s) from electron capture transformation of 55Fe? (b) What energy distribution do these neutrinos have?

Solution

⁵⁵Fe + e^- ---à ⁵⁵Mn + n

Mass of Mn – 55 = 54.938049 u

Mass of Fe-55 = 54.938298 u

Q value of the reaction = (54.938298 – 54.938049)* 931.494 Mev

                                     = 0.231942006 Mev.

The energy distribution varies from 0 to 0.232 Mev