TY - JOUR
T1 - Cosmogenic in situ production of radionuclides
T2 - Exposure ages and erosion rates
AU - Heisinger, B.
AU - Nolte, E.
N1 - Funding Information:
This work was supported by BMBF (Federal Ministry of Education and Research) and DFG (German Research Council).
PY - 2000
Y1 - 2000
N2 - Experimental data for the cosmogenic in situ production of radionuclides and its depth dependence are used for two applications, the determination of exposure ages and of erosion rates. Concentrations of the long-lived radionuclides 10Be, 14C and 26Al in quartz are presented as function of exposure age, depth before exposure and erosion rate after exposure. It is shown that the cosmogenic production before exposure can introduce important corrections to the representation without consideration of pre-exposure production. Depth profiles of 10Be, 14C and 26Al in quartz and sulfur, of 36Cl in K2O, CaCO3, granite and concrete and of 53Mn in Fe2O3 are given as function of erosion rate. Consequences to determinations of neutron fluences in Hiroshima are discussed.
AB - Experimental data for the cosmogenic in situ production of radionuclides and its depth dependence are used for two applications, the determination of exposure ages and of erosion rates. Concentrations of the long-lived radionuclides 10Be, 14C and 26Al in quartz are presented as function of exposure age, depth before exposure and erosion rate after exposure. It is shown that the cosmogenic production before exposure can introduce important corrections to the representation without consideration of pre-exposure production. Depth profiles of 10Be, 14C and 26Al in quartz and sulfur, of 36Cl in K2O, CaCO3, granite and concrete and of 53Mn in Fe2O3 are given as function of erosion rate. Consequences to determinations of neutron fluences in Hiroshima are discussed.
KW - Accelerator mass spectrometry
KW - Cross-sections
KW - Exposure cases
KW - In situ production
KW - Muon-induced nuclear reactions
UR - http://www.scopus.com/inward/record.url?scp=0034291978&partnerID=8YFLogxK
U2 - 10.1016/S0168-583X(00)00204-4
DO - 10.1016/S0168-583X(00)00204-4
M3 - Article
AN - SCOPUS:0034291978
SN - 0168-583X
VL - 172
SP - 790
EP - 795
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 - 1-4
ER -