The Mail-in EXAFS Service is another facility
provided at the National Synchrotron Light Source, Brookhaven National
Laboratory. This is offered to any person interested in doing X-ray absorption
spectroscopy but has no time or other reasons to go to a synchrotron and do it
by themselves. You can prepare your samples according to the directions given on
the Thickness
Measurements page, mount it on a
standard holder and mail it to us with all possible details. You should always
include some standard samples along with your unknowns for your data analysis
and its interpretation. We will collect EXAFS and XANES data for you at room
temperature or low cryogenic temperatures, as the need may be, and we will
return the samples to you, along with the data, in any format you specify.
At the moment we are doing this in
transmission mode only.
The energy range for K-absorption edges is
from P (2.142 KeV) to La (38.931 KeV) and for LIII- absorption edge is from Zr
(2.220 KeV) to U (17.163 KeV) + all other trans-uranium elements.
Following are the EXAFS scans of some standard
foils taken at Beamline X18B.
Chromium Manganese Iron Cobalt Nickel Copper Zinc Platinum LIII
PlatinumL II Germanium Niobium Molybdenum Palladium Silver
The standard foils and filters available at
the NSLS are listed at the NSLS-EXAFS Equipment Pool. If the Mail-in EXAFS Users
prefer they can ask for doing EXAFS/XANES of those standards along with their
samples.
NSLS EXAFS EQUIPMENT POOL FOILS AND FILTERS
Pictures of Beamline X18B and instrumentation
Actual
cost to provide the service will be billed. Please contact Syed Khalid for an
estimate of the costs to provide this service. The total time to run the samples
depends upon the concentration of the samples, detector and equipment setup and
other requirements of your experiments. The samples can be done when the X-ray
operational beam time is available at X18B or at X19A. Please see the schedules
of these beamlines at the X18B Home page.
IMPORTANT:
To run your samples you must have a BNL Operating Account for the NSLS.
How to setup Operating Account
The Rates are about $ 100.00 / hour.
Please contact for further details:
SYED KHALID.
e-mail:khalid@bnl.gov
Phone: 631-344-7496
Address: 725D, National Synchrotron Light Source
,
Brookhaven National Laboratory Upton, NY 11973.
