Excess 3He in Cluster Interplanetary Dust Particles (IDPs) from Collectors L2009 and L2011
The 3He excesses found by Nier & Schlutter (1993) in cluster IDPs from collector L2011 are also present at about the same levels in particles from companion collector L2009. If these are produced by spallation, inferred exposure ages are very long.
Physics and Astronomy
R. O. Pepin, R. L. Palma and D. J. Schlutter, 2000. Excess 3He in Cluster Interplanetary Dust Particles (IDPs) from Collectors L2009 and L2011. 31st Lunar and Planetary Science Conference, Abstract #1833, Lunar and Planetary Institute, Houston.