Single peak analysis of proton induced prompt gamma counts

Evaluation the nonlinear response function of a HPGe detector for 59 keV to 10.7 MeV gamma-rays using a Monte Carlo simulation and comparison with experimental data

“…High precision gamma-ray spectroscopy is a powerful tool that is widely used to study the structure of excited nuclear states [1,2] of irradiated targets in many applications such as prompt gamma neutron activation analysis [3][4][5] and proton induced prompt gamma emission [6][7][8][9]. The prompt gammarays produced by nuclear interactions between the target and the incident particles can be used for the determination and online monitoring of the elemental composition of the irradiated target.…”

“…For instance, the net count of the 16 O 6.13 MeV gamma line produced during proton therapy can be used to determine tissue oxygen concentration, thus providing a method to track changes in the oxygenation levels and blood flow of tumors [6]. The mentioned analysis method strongly depends on recording the sharp gamma lines by means of a high resolution detector [6,7]. High resolution semiconductor detectors like High Purity Germanium (HPGe) are commonly used for recording the prompt gamma-ray spectra to minimize the overlap of gamma peaks [10,11].…”

“…In this work, we have exploited both proton induced prompt gamma-rays and calibration sources to model and calibrate a HPGe detector for the purpose of utilizing it in our formerly presented analysis method in proton therapy [7]. The efficiency and energy resolution (FWHM) of the detector were experimentally measured for a wide energy range (59 to 10764 keV) and appropriate analytical functions were fitted to the obtained results.…”