In this work, we present an alternative method for PIGE analysis of magnesium and beryllium in thick samples. This method is based on the ERYA - Emitted Radiation Yield Analysis - code, which integrates the nuclear reaction excitation function along the depth of the sample. For this purpose, the excitations functions of the 25Mg(p,p′γ)25Mg (Eγ = 585 keV) and 9Be(p,γ)10B (Eγ = 718 keV) reactions were employed. Calculated gamma-ray yields were compared, at several proton energy values, with experimental yields for thick samples made of inorganic compounds containing magnesium or beryllium. The agreement is better than 5%. Taking into consideration the experimental uncertainty of the measured yields and the errors related to the stopping power values, this agreement shows that effects as the beam energy straggling, ignored in the calculation, seem to play a minor role.
|Number of pages||3|
|Journal||Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms|
|Publication status||Published - 1 Jun 2010|
|Event||19th International Conference on Ion Beam Analysis - Cambridge, United Kingdom|
Duration: 7 Sep 2009 → 11 Sep 2009
- Quantitative thick sample analysis