Re: [Ifeffit] max number of restraints

2007-04-14 Thread Bruce Ravel
On Friday 13 April 2007 19:08, [EMAIL PROTECTED] wrote: > I am confused. > I thought I did exactly what Bruce said. I added them in quadrature and > used square root of that as the restraint in artemis: > After summing in quadrature: > restraint_sum = sqrt((restraint1)^2 + (restraint2)^2 + > (restr

Re: [Ifeffit] metal foils

2007-04-14 Thread Matt Newville
Matthew, Jeff, > EXAFS Materials > 871 El Cerro Blvd > Danville CA 94526 > > Their old phone number was 510-838-7162. You might also search for Joe Wong in the IXS "community archive". Or, contact the EXAFS Company at http://www.exafsco.com/products.html If you're looking for one or two metal f

Re: [Ifeffit] max number of restraints

2007-04-14 Thread Matt Newville
Hi Victor, > I am confused. I think Bruce had the same idea as you: Because each restraint is appended to the vector to be minimized in the least square sense, the important quantity is Sum_restraints ( restraint_i)^2 and so you could just do that ahead of time, and then say that sqrt(Sum

Re: [Ifeffit] metal foils

2007-04-14 Thread Jeff Terry
The XAS foil standards the we use are from : EXAFS Materials 871 El Cerro Blvd Danville CA 94526 Their old phone number was 510-838-7162. Unfortunately, the phone number was scratched off on our most recent box, although the new area code is 925. It is possible the area code only that has chang

[Ifeffit] metal foils

2007-04-14 Thread Matthew Kieber-Emmons
Hi All Does anyone know a good place to buy metal foil XAS standards? Sorry for the pedestrian question. And thanks in advance... Best Wishes Matt === Matthew T Kieber-Emmons Riordan Group, 302-831-4518 Rm 222 Lammont DuPont Laboratory Department of Chemist