January 17, 2017 1 Abell, G. C.; Matson, L. K.; Steinmeyer, R. H.; Jr, R. C. Bowman; Oliver, B. M. (1990). Helium Release from A
January 17, 2017 1 Abel1990 Abell, G. C.; Matson, L. K.; Steinmeyer, R. H.; Jr, R. C. Bowman; Oliver, B. M. (1990). Helium release from aged palladium tritide. Phys. Rev. B: Condens. Matter, 41:1220–1223. Annotation: Tritium decays by beta emission and forms He; so if you let PdT(x) stand, you accumulate He in the Pd. An interesting question for cold fusion people looking for He, where should they look for it? In the solution or gas outside the Pd, or inside? In other words, how fast does any He come out? These authors examine this and find that, for small He "loadings" (<0.5 He/Pd), the He is practically not released, and that temperatures exceeding 1300 K are needed to drive it out. Aber1990 Aberdam, D.; Avenier, M.; Bagieu, G.; Bouchez, J.; Cavaignac, J. F.; Collot, J.; Durand, R.; Faure, R.; Favier, J.; Kajfasz, E.; Koang, D. H.; Lefievre, B.; Lesquoy, E.; Pessard, H.; Rouault, A.; Senateur, J. P.; Stutz, A.; Weiss, F. (1990). Limits on neutron emission following deuterium absorption into palladium and titanium. Phys. Rev. Lett., 65:1196–1199. Annotation: This group has a new type of neutron detector which will detect any neutron with an energy > 1MeV and allows discrimination against Compton electron background. This was used in an underground lab, where the neutron background was a low 1.7 n/day. Both electrochemical and pressurization cold fusion experiments were done, closely following the example of FPH, Jones+ and De Ninno+. In some of the electrochemical runs, the currents were abruptly changed several times, to test for dynamical effects.
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