Consider a NaI(Tl) detector located two meters from a Tc-99m point source. The activity of the source is 500 nCi. The detector has a square face thirty centimeters on a side. The detector is five millimeters thick.

a) Compute the geometric efficiency.

b) Compute the intrinsic efficiency.

c) Compute the count rate recorded by the detector.

Answer rating: 100% (QA)

ANSWER The gemetri effiieny whih is the effiieny with whih the detetr interets rditin emitted frm the sure This is determined mstly by detetr size nd ... View the full answer