Tag Info

2

The activity of a radioactive source is measured (SI units) in Bq - Becquerels. One Bq = 1 disintegration per second. Frequently you will see the Curie (Ci) which is $37 \cdot 10^9 Bq$. The energy of radiation depends on the decay scheme. For example, for Cs-137 you find (source: ...

2

As noted in the comments the count rate is (to first order) proportional to the activity: $$\text{rate} = k \cdot \text{activity} \,.$$ The constant of proportionality is $$k = \text{acceptance} \times \text{efficiency} \times \text{fractional live time} \,,$$ where acceptance is a geometric factor, quantum efficiency is a property of the detector and ...

2

I'm going to answer for fairly energetic neutrons. There are a several of parameters that you have to know and they are dependent on the details of your device to the point that you have to measure them; that is to say that you calibrate each device. The parameters are the fraction of the energy that gets transferred to fast charged particles (usually ...

Top 50 recent answers are included