Answer:
To determine the saturation activity in a forensic sample of tissue, we need to calculate the activity of the sample when it reaches saturation. The saturation activity refers to the maximum activity that the sample can achieve under the given conditions.
To calculate the saturation activity, we need to use the following formula:
Saturation Activity = Initial Activity × (1 - e^(-ΦΣt))
Where:
- Initial Activity is the initial activity of the sample
- Φ is the neutron flux, which is given as 10^8 neutrons/cm^2-sec
- Σ is the macroscopic cross-section of the sample for the given element
- t is the exposure time
In this case, we are given that the sample contains 50 μg of As (arsenic) and is exposed to a neutron flux of 10^8 neutrons/cm^2-sec. However, we do not have the value for the macroscopic cross-section of arsenic or the exposure time. Without these values, we cannot calculate the saturation activity accurately.
Therefore, to provide an accurate answer, we would need the missing information regarding the macroscopic cross-section and exposure time.