A Cs-137 source is homogeneously distributed throughout a right cylindrical bucket of water having diameter = height = 30 cm.

A Cs-137 source is homogeneously distributed throughout a right cylindrical bucket of water having diameter = height = 30 cm. What is the approximate absorbed dose rate in Gy per day in water at the center of the bucket if 160 atoms of Cs-137 disintegrate per g s? Use the straight-ahead approximation and the mean-radius method of calculating the photon dose. Give the answers for each component of the dose.