I am forwarding this message to the Ifeffit mailing list, which is the proper forum for Ifeffit software support. Please see http://cars9.uchicago.edu/iffwiki/BruceRavel/FormLetters/HelpRequest I have some comments, which I will post once this gets distributed by the mailing list. ---------- Forwarded Message ---------- Subject: Mg k-edge and Athena Questions Date: Wednesday 07 October 2009 From: fang.fang@yale.edu To: bravel@bnl.gov Dear Bruce, This is Fang from Yale University, Pfefferle and Haller's group. Besides our research on Co/Pt on your X23A2 and X18B, I am mainly involved in the Mg and B edge measurement. I heard from Paul that you also have anongoing project on Mg k-edge, and the updated Athena could import the raw data from X15B. However, after I installed the most recent version of Ifeffit and installed, they still don't recognize the data file. Could you show me how to import the data? Your help will be greatly appreciated. There is another question come with the seasonal shut down of X15B. Do you know any other active beamlines who are willing to put in the effort to scan Mg k-edge? Since NSLS asked us to put in a substitute beamline after we put in this year's proposal, we thought you might have a much better idea of which beamline to turn for this hard range around 1300eV. Many thanks again, Fang ------------------------------------------------------- -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/
On Thursday 08 October 2009 08:47:11 am Bruce Ravel wrote:
This is Fang from Yale University, Pfefferle and Haller's group. Besides our research on Co/Pt on your X23A2 and X18B, I am mainly involved in the Mg and B edge measurement. I heard from Paul that you also have anongoing project on Mg k-edge, and the updated Athena could import the raw data from X15B. However, after I installed the most recent version of Ifeffit and installed, they still don't recognize the data file. Could you show me how to import the data? Your help will be greatly appreciated.
Data from X15B comes off the beamline in the form of a strange binary file. Athena's capability to read these files is implemented in the form of a file type plugin. Here is the reelavent section from the Athena manual: http://cars9.uchicago.edu/~ravel/software/doc/Athena/html/import/plugin.html Scroll down to the description of the the plugin registry for an explanation of how to get started. In short, you will want to turn on the X15B plugin. Once you have done that, Athena should recognize X15B binary files and convert it into a readable form for import.
There is another question come with the seasonal shut down of X15B. Do you know any other active beamlines who are willing to put in the effort to scan Mg k-edge? Since NSLS asked us to put in a substitute beamline after we put in this year's proposal, we thought you might have a much better idea of which beamline to turn for this hard range around 1300eV.
The 1 - 2 keV range is a really tough energy range. X15B was filling a niche at NSLS. To my knowledge -- and after a quick peak at the NSLS beamline guide -- there isn't another beamline at NSLS offering photons for XAS in the energy range. None of the UV ring spectroscopy beamlines advertise an energy range above 1200 eV. There are some other options if you are willing to look farther afield than NSLS. The XAS beamline at CAMD is one option. I believe that there are beamlines at the ALS that can do XAS in that energy range. Examples from even farther afield would inlcude the Lucia beamline at Soleil and beamline 8 at the Thai synchrotron. Perhaps some of the folks on this mailing list can suggest some other options for that energy range. B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/
I believe the SGM beamline (11ID-1) at the Canadian Light Source also works in this energy range. http://www.lightsource.ca/experimental/sgm.php Lachlan ---------------------------------- Lachlan C.W. MacLean Canadian Government Postdoctoral Fellow Health Canada - Safe Environments Programme 555 Booth St., Room 250A Ottawa, ON, Canada K1A 0G1 -----Original Message----- From: ifeffit-bounces@millenia.cars.aps.anl.gov [mailto:ifeffit-bounces@millenia.cars.aps.anl.gov] On Behalf Of Bruce Ravel Sent: October 8, 2009 09:03 To: XAFS Analysis using Ifeffit Cc: fang.fang@yale.edu Subject: Re: [Ifeffit] Fwd: Mg k-edge and Athena Questions On Thursday 08 October 2009 08:47:11 am Bruce Ravel wrote:
This is Fang from Yale University, Pfefferle and Haller's group. Besides our research on Co/Pt on your X23A2 and X18B, I am mainly involved in the Mg and B edge measurement. I heard from Paul that you also have anongoing project on Mg k-edge, and the updated Athena could
import the raw data from X15B. However, after I installed the most recent version of Ifeffit and installed, they still don't recognize the data file. Could you show me how to import the data? Your help will be greatly appreciated.
Data from X15B comes off the beamline in the form of a strange binary file. Athena's capability to read these files is implemented in the form of a file type plugin. Here is the reelavent section from the Athena manual: http://cars9.uchicago.edu/~ravel/software/doc/Athena/html/import/plugin. html Scroll down to the description of the the plugin registry for an explanation of how to get started. In short, you will want to turn on the X15B plugin. Once you have done that, Athena should recognize X15B binary files and convert it into a readable form for import.
There is another question come with the seasonal shut down of X15B. Do
you know any other active beamlines who are willing to put in the effort to scan Mg k-edge? Since NSLS asked us to put in a substitute beamline after we put in this year's proposal, we thought you might have a much better idea of which beamline to turn for this hard range around 1300eV.
The 1 - 2 keV range is a really tough energy range. X15B was filling a niche at NSLS. To my knowledge -- and after a quick peak at the NSLS beamline guide -- there isn't another beamline at NSLS offering photons for XAS in the energy range. None of the UV ring spectroscopy beamlines advertise an energy range above 1200 eV. There are some other options if you are willing to look farther afield than NSLS. The XAS beamline at CAMD is one option. I believe that there are beamlines at the ALS that can do XAS in that energy range. Examples from even farther afield would inlcude the Lucia beamline at Soleil and beamline 8 at the Thai synchrotron. Perhaps some of the folks on this mailing list can suggest some other options for that energy range. B -- Bruce Ravel ------------------------------------ bravel@bnl.gov National Institute of Standards and Technology Synchrotron Methods Group at NSLS --- Beamlines U7A, X24A, X23A2 Building 535A Upton NY, 11973 My homepage: http://xafs.org/BruceRavel EXAFS software: http://cars9.uchicago.edu/~ravel/software/exafs/ _______________________________________________ Ifeffit mailing list Ifeffit@millenia.cars.aps.anl.gov http://millenia.cars.aps.anl.gov/mailman/listinfo/ifeffit
The Photon Factory at KEK, Tsukuba, Japan has two beamlines (BL7A, BL2C) that cover 250-1500 eV at around 10^9 photons/s. Bruce Ravel wrote:
There are some other options if you are willing to look farther afield than NSLS. The XAS beamline at CAMD is one option. I believe that there are beamlines at the ALS that can do XAS in that energy range. Examples from even farther afield would inlcude the Lucia beamline at Soleil and beamline 8 at the Thai synchrotron.
Perhaps some of the folks on this mailing list can suggest some other options for that energy range.
-- Jason Gaudet Environmental Catalysis and Nanomaterials Laboratory Department of Chemical Engineering Virginia Tech 147B Randolph Hall Blacksburg, VA 24061 540-231-9371 jgaudet@vt.edu
Beamline 3-3 at SSRL was very good in this range. I made Mg K-edge XAFS measurements there many times. I do not know if this is one of the beamlines that was shuttered during the SSRL upgrade though. There is also a chance that the Double Crystal Monochromator beamline at the SRC could make this measurement. I don't know what the lower limit is but I have done Si XAFS there 1.8 keV so it is close. You might check into that. On Oct 8, 2009, at 8:03 AM, Bruce Ravel wrote:
The 1 - 2 keV range is a really tough energy range. X15B was filling a niche at NSLS. To my knowledge -- and after a quick peak at the NSLS beamline guide -- there isn't another beamline at NSLS offering photons for XAS in the energy range. None of the UV ring spectroscopy beamlines advertise an energy range above 1200 eV.
participants (4)
-
Bruce Ravel -
Jason Gaudet -
Jeff Terry -
MacLean, Lachlan