I doubt that isotopically enriched material (other than perhaps H 2) is needed. In the real world, you just make your sample larger. I personally think that the addition of alloying materials and the presence of material to help dissociate the hydrogen are more important. Dennis
To: vortex-l@eskimo.com Subject: Re: [Vo]:Some comments by me at Mats Lewan blog From: dlrober...@aol.com Date: Thu, 1 Aug 2013 17:19:11 -0400 Jed, is it possible that you found the cost of laboratory pure nickel isotopes instead of industrial grade? I suspect it would be easier to do a modest enrichment with some form of chemical and centrifuge separation process instead of the more sophisticated techniques. The difference in weight of the nickel isotopes seems rather large at first glance. Perhaps a business can be started to do this type of thing if it is important enough. First, you would need to find a liquid containing nickel that can be put into a centrifuge for separation. I know little of these techniques, but there may be some guys monitoring vortex that are familiar with these types of systems who might offer suggestions. At the costs you quoted, I would bet there are alternatives that good engineers or scientists can develop. This seems like a good challenge. DGT may have already found such a technique or a company that offers the materials. The density of the separated portion of the input liquid is an indication of the amount of an isotope present. That is the way you might be able to test your separation efficiency. Since you know how much of each isotope is in the raw material, you know what per cent of the liquid to draw off initially at the heavy end or light end. We need to keep an open mind when we discuss what can or can not be done. It might cost a small fortune to obtain special isotopes, but who can be sure unless they have the direct knowledge. Just a guess seeking a solution, Dave