Talk:Diamond anvil cell

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[edit] Merged version

A Diamond Anvil Cell (DAC) is used for high pressure experiements. The sample is placed between two diamonds. A gasket keeps the sample in place, and a liquid often ensures even pressure.

This technique is used in synchrotron research.

This last claim I find totally mysterious. --Andrew 23:11, Apr 16, 2005 (UTC)

A citation is sought for the production of metallic hydrogen using the diamond anvil, for which purpose the following, taken from the article Metallic Hydrogen, would seem to suffice:[3] S. T. Weir, A. C. Mitchell, and W. J. Nellis, Metallization of Fluid Molecular Hydrogen at 140 GPa (1.4 Mbar) Physical Review Letters 76, 1860 - 1863 (1996). Unfortunately, while I was able to simply paste the citation at the end of the article, I was unable to figure out how to properly insert the reference. Help appreciated. FutharkRed 07:34, 14 February 2007 (UTC)

[edit] Diagram

The diagram demonstrating the technique is technically incorrect. It suggests that the laser beam (and X-rays, although this at least is more plausable) comes in from the side at an angle parellel to the principle facet of the diamond (ie: normal to the applied force). In order to do this the laser would need to pass through the gasket which is generally opaque. The more usual method (and indeed the reason why a DAC is so useful) is to pass the laser beam along the axis of applied force and through the diamond. The diamond is transparent (which is one of the reasons a high purity, well cut diamond is required) and has very little effect on the laser beam (or at least one which can be corrected or accounted for in results). I'm a little unsure what the copyright on the image allows me to do with it though and it would be a shame to have to totally replace the entire image when a little editing is all that is required to fix the problem (ie: slightly expand the frame and redraw the arrows coming in from the right direction). Could someone clarify if it's ok for me to fix this and resubmit the corrected image or does modification violate the copyright? --Edith The Hutt 18:59, 5 October 2006 (UTC) The image is in the public domain, and therefore you may edit it in anyway you like.