Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Jens Kaiser
Gloria, I think this one might be modulated, you can clearly distinguish Bragg and satellite reflections. -j. On Wed, 2015-04-01 at 07:06 -0500, Gloria Borgstahl wrote: > Ah Ha! > > > drum roll > > > A quasicrystal ! > > On Wed, Apr 1, 2015 at 7:00 AM, Julia Griese wrote: >

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Andrea Thorn
These diffraction patterns, called "matzo" (Hebrew: מַצָּה‎) have been observed already by the ancient jews, and it is thought that the invention of the millstone (see http://galleryhip.com/millstone.html) is a consequence of early detector technology to produce these images. Andrea. On 01/04

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Marjolein Thunnissen
Working at the MAX IV Laboratory (as it is called these days) I can indeed confirm it is a Swedish pattern, but I have not yet found a trace of the data itself, so I am not so sure it was collected here... However, as we will open the brightest synchrotron source in the world next year, we can

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Derek Logan
These last puns just take the biscuit! Derek On 1 Apr 2015, at 16:52, David Briggs mailto:drdavidcbri...@gmail.com>> wrote: This looks like a tough cookie. IMO you'd be crackers to persist with this crystal form. It's certainly not going to be a piece of cake. Dr David C Briggs PhD http://a

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread David Briggs
This looks like a tough cookie. IMO you'd be crackers to persist with this crystal form. It's certainly not going to be a piece of cake. Dr David C Briggs PhD http://about.me/david_briggs On 1 Apr 2015 12:07, "Keller, Jacob" wrote: > Can anyone index this? It's got mostly split spots and a stra

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Folmer Fredslund
Hi Julia, This was clearly taken at MAXlab, since it's a very distinct Swedish pattern. I would guess I911-2, unless of course it is a very old one from I711. There was a problem once, where the header of the file didn't get written correctly. Can you index it if you manually guess the beam posit

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Helena Taberman
I think we used the same version of Mosflm when we managed to solve this strange pattern. [cid:4EF3709E-41D5-4A38-8CE9-064D75929422@uefad.uef.fi] Helena Taberman, M.Sc. University of Eastern Finland Department of Chemistry Joensuu Campus P.O. Box 111 FI-80101 Joensuu, FINLAND Mobile: +358 50

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread H. Raaijmakers
Have you tried Shake-and-Bake? An old program, but works great when you have mixed real and reciprocal space cake. Keller, Jacob schreef: > Can anyone index this? It's got mostly split spots and a strange diffuse > scattering background > > JPK > > *** >

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Finke Aaron (PSI)
-- Dr. Aaron Finke Postdoctoral Fellow Swiss Light Source WSLA/217 CH-5232 Villigen-PSI phone: +41 56 310 5652 e-mail: aaron.fi...@psi.ch On Apr 1, 2015, at 13:03, Keller, Jacob wrote: > Can anyone index this? It's got mostly split spots and a strange diff

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Gloria Borgstahl
Ah Ha! drum roll A quasicrystal ! On Wed, Apr 1, 2015 at 7:00 AM, Julia Griese wrote: > This one appears to be of a similar age. It has a most puzzling, but > pretty pentagonal pattern (and a backstop). Unfortunately Mosflm doesn't > appear to support the image format. > > /Julia > > >

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Julia Griese
This one appears to be of a similar age. It has a most puzzling, but pretty pentagonal pattern (and a backstop). Unfortunately Mosflm doesn't appear to support the image format. /Julia On 01/04/15 13:08, Harry Powell wrote: Hi Jacob I noticed that there's no backstop shadow that might give

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Adrian Goldman
no, and that’s why they all needed to be stored at Diamond in case future generations have better programs. And this applies also to those that have already been digested - I mean, processed. Adrian On 01 Apr 2015, at 12:03, Keller, Jacob wrote: > Can anyone index this? It's got mostly spli

Re: [ccp4bb] Strange Ancient Diffraction Pattern...

2015-04-01 Thread Harry Powell
Hi Jacob I noticed that there's no backstop shadow that might give a clue as to the direct beam position. Do you know what wavelength radiation was used to bake this? On 1 Apr 2015, at 12:03, Keller, Jacob wrote: > Can anyone index this? It's got mostly split spots and a strange diffuse > sca