Question

what is the maximuim energy resolution in percent necessary to resolve two peaks at 720 KeV and 755 KeV?

Answer 1

Answer on Question 49473, Physics, Nuclear Physics

Question:

What is the maximum energy resolution in percent necessary to resolve two peaks at 720 KeV and 755 KeV?

Solution:

From the fundamentals of gamma spectroscopy we know that the energy resolution is the ratio of the full width at half maximum (FWHM) of a given energy peak to the peak hight:

$$R = \frac {F W H M}{c h _ {0}} \cdot 100 \% = \frac {\Delta c h}{c h 0} \cdot 100 \% = \frac {c h _ {2} - c h _ {1}}{c h _ {2} + c h _ {1}} \cdot 100 \% = \frac {755 K e V - 720 K e V}{755 K e V + 720 K e V} \cdot 100 \% = 4.74\% .$$

Answer:

The maximum energy resolution is $R = 4.74\%$ .

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