Publication Date:
2019-08-15
Description:
Targets of silicon and silicon dioxide were irradiated with spallation neutrons to simulate the production of long-lived radionuclides in the surface of the Earth. Gamma-ray spectroscopy was used to measure Be-7 and Na-22, and accelerator mass spectrometry was used to measure Be-10, C-14, and Al-26. The measured ratios of these nuclides are compared with calculated ratios and with ratios from other simulations and agree well with ratios inferred from terrestrial samples.
Keywords:
Atomic and Molecular Physics
Type:
NASA/CR-1994-207748
,
NAS 1.26:207748
,
Nuclear Instruments and Methods in Physics Research, Section B - Beam Interactions with Materials and Atoms (ISSN 0168-583X); 92; 297-300
Format:
application/pdf
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