TY - JOUR
T1 - On the determination of beryllium in light element matrices using PIGE and NRA
AU - Perdikakis, G.
AU - Spyrou, A.
AU - Kokkoris, M.
AU - Zarkadas, Ch
AU - Karydas, A. G.
AU - Harissopulos, S.
AU - Kossionides, S.
PY - 2004/12
Y1 - 2004/12
N2 - In the present work, the determination of Be concentration in soil, asphalt and concrete samples using several IBA (ion beam analysis) techniques (PIGE - particle induced gamma-ray emission, and NRA - nuclear reaction analysis/ charged-particle spectroscopy) is presented. The samples originated from various areas of the former airport of Athens that is now closed to be used as an Olympic site. The main characteristic of the samples analyzed is their complex matrix consisting of light elements in high concentrations. For such matrices, the implementation of a deuteron beam at energies between 1 and 2.1 MeV, via the 9Be(d, nγ)10B reaction, seems to be the most sensitive among the applied IBA techniques. A HP Ge detector of 20% relative efficiency was used to detect the 718keV γ-ray of 10B. The absolute γ-ray yield of the 9Be(d, nγ)10B reaction is presented and an attempt is made in order to evaluate the applicability of PIGE in the determination of trace Be quantities in complex matrices. The results are compared to existing literature data obtained with other IBA techniques (e.g. heavy-ion spectroscopy).
AB - In the present work, the determination of Be concentration in soil, asphalt and concrete samples using several IBA (ion beam analysis) techniques (PIGE - particle induced gamma-ray emission, and NRA - nuclear reaction analysis/ charged-particle spectroscopy) is presented. The samples originated from various areas of the former airport of Athens that is now closed to be used as an Olympic site. The main characteristic of the samples analyzed is their complex matrix consisting of light elements in high concentrations. For such matrices, the implementation of a deuteron beam at energies between 1 and 2.1 MeV, via the 9Be(d, nγ)10B reaction, seems to be the most sensitive among the applied IBA techniques. A HP Ge detector of 20% relative efficiency was used to detect the 718keV γ-ray of 10B. The absolute γ-ray yield of the 9Be(d, nγ)10B reaction is presented and an attempt is made in order to evaluate the applicability of PIGE in the determination of trace Be quantities in complex matrices. The results are compared to existing literature data obtained with other IBA techniques (e.g. heavy-ion spectroscopy).
KW - Absolute thick-target γ-ray yield
KW - Be(d, nγ)B
KW - Beryllium determination
KW - Deuteron beam
KW - NRA
UR - http://www.scopus.com/inward/record.url?scp=9544245839&partnerID=8YFLogxK
U2 - 10.1016/j.nimb.2004.08.005
DO - 10.1016/j.nimb.2004.08.005
M3 - Article
AN - SCOPUS:9544245839
SN - 0168-583X
VL - 226
SP - 622
EP - 630
JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
IS - 4
ER -