Excitation function of 54Fe(p, α)51Mn from 9.5 MeV to 18 MeV

Abstract

Excitation function of the ⁵⁴Fe(p,α)51Mn reaction was measured from 9.5 to 18 MeV $E_{0,{\text{p}}^{+}}$ by activating a foil stack of ⁵⁴Fe electrodeposited on copper substrates. Residual radionuclides were quantified by HPGe gamma ray spectrometry. Both ⁵¹Mn (t _1/2 = 46.2 min, $〈E_{{\beta }^{+}}〉=963.7\text{keV}$ , $I_{{\beta }^{+}}=97\text{\%}$ ; E _γ = 749.1 keV, I _γ = 0.265%) and its radioactive daughter, ⁵¹Cr (t _1/2 = 27.704d, E _γ = 320.1 keV, I _γ = 9.91%), were used to indirectly quantify formation of ⁵¹Mn. Results agree within uncertainty to the only other measurement in literature and predictions of default TALYS theoretical code. Final relative uncertainties are within ±12%.

Keywords: Excitation function; Gamma spectrometry; Gamma spectroscopy; Manganese-51; Positron emission tomography; Tandem Van de Graaff accelerator.