Measurement of proton induced thick target γ-ray yields on B, N, Na, Al and Si from 2.5 to 4.1 MeV

Abstract Thick target yields for proton induced γ-ray emission (PIGE) on low-Z nuclei, namely B, N, Na, Al and Si, were measured for proton energies from 2.5 to 4.1 MeV and emission angles of 0°, 45° and 90°, at the 3 MV Tandetron laboratory of INFN-LABEC in Florence. The studied reactions were: 10B(p,α′γ)7Be (Eγ = 429 keV), 10B(p,p′γ)10B (Eγ = 718 keV) and 11B(p,p′γ)11B (Eγ = 2125 keV) for boron; 14N(p,p′γ)14N (Eγ = 2313 keV) for nitrogen; 23Na(p,p′γ)23Na (Eγ = 441 and 1636 keV) and 23Na(p,α′γ)20Ne (Eγ = 1634 keV) for sodium; 27Al(p,p′γ)27Al (Eγ = 844 and 1014 keV) and 27Al(p,α′γ)24Mg (Eγ = 1369 keV) for aluminum; 28Si(p,p′γ)28Si (Eγ = 1779 keV) and 29Si(p,p′γ)29Si (Eγ = 1273 keV) for silicon. The PIGE thick target yields have been measured with an overall uncertainty typically better than 10%. The use of the measured thick target yield to benchmark and validate experimental cross sections available in the literature is demonstrated.

[1]  P. Endt,et al.  Energy levels of A = 21−44 nuclei (V) , 1990 .

[2]  J. Ziegler,et al.  SRIM – The stopping and range of ions in matter (2010) , 2010 .

[3]  X. Aslanoglou,et al.  Proton induced thick target γ-ray yields of light nuclei at the energy region Ep=1.0–4.1 MeV , 1999 .

[4]  Aurelio Climent-Font,et al.  Proton elastic scattering and proton induced γ-ray emission cross-sections on Na from 2 to 5 MeV , 2008 .

[5]  A. Gurbich.  Evaluation of non-Rutherford cross sections for IBA: Theory and results , 2007 .

[6]  P. Teubig,et al.  Measurement of proton induced γ-ray emission cross sections on Na from 1.0 to 4.1 MeV , 2014, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms.

[7]  P. A. Mandò,et al.  Proton elastic scattering cross-section on boron from 0.5 to 3.3 MeV , 2001 .

[8]  M. Mayer.  SIMNRA, a simulation program for the analysis of NRA, RBS and ERDA , 1999 .

[9]  G. Demortier,et al.  Quantitative analysis of aluminium by prompt nuclear reactions , 1972 .

[10]  C. Jeynes,et al.  Development of a reference database for Ion Beam Analysis and future perspectives , 2011 .

[11]  C. Jeynes,et al.  Benchmarking experiments for the proton backscattering on 23Na, 31P and natS up to 3.5 MeV , 2014 .

[12]  F. Bodart,et al.  Quantitative analysis of sodium by (p, γ) reactions , 1977 .

[13]  S. Pospíšil,et al.  Nuclear structure of 198Au studied with (n, γ) and (d, p) reactions and interpreted with the IBFFM , 1989 .

[14]  A. Gurbich.  Evaluated differential cross-sections for IBA , 2010 .

[15]  M. Bianconi,et al.  Benchmark measurements of non-Rutherford proton elastic scattering cross section for boron , 2015 .

[16]  E. Koltay,et al.  Measurements of relative thick target yields for PIGE analysis on light elements in the proton energy interval 2.4–4.2 MeV , 1985 .