#
# arev:/usr/local/unicat/unireq/beamreq/req00044.txt
# UNICAT Member Beam Time Request  #44

# created Wed Feb 17 11:00:32 CST 1999
#

days:
	4

description:
	This will be a collaborative experiment between UOP, NIST (J. Woicik)
	and UIUC-MRL (A. Frenkel) primarily to test the performance of the 
	oprics for EXAFS experiments.  However, we also intend to collect
	meaningful data on a number of systems, particularly suited for study
	on the ID line, where the data from NSLS is marginal.
	
	The testting part of the work will be performed over a wide energy
	range (8-25 keV), using the monochromator in both fixed exit and
	non-fixed exit mode, using both focussed and non-focussed beam.
	For this phase of the study we will be using well-defined systems
	e.g. metal foils, and samples where data has been collected at
	other facilities.
	
	The other work will involve:
	(a) EXAFS studies at Cu K-edge of Cu complexes with organic ligands
	in solution at low (<0.0005 M) concentration.
	(b) EXAFS studies at Ni K-edge of Ni in hydrocarbon feeds, where the
	Ni concentration is <100 ppm.
	(c) EXAFS studies at Pt L3-edge of supported Pt catalysts where the
	Pt loading is 0.04 wt %.
	
	We feel these studies will be an excellent test of the capabilities
	of the ID line for EXAFS work.

equipment+required:
	Ion chambers and associated electronics

experiment:
	EXAFS studies of dilute systems

hazards:
	We do not forsee any hazards associated with the experiment.  All the
	materials have low reactivity, and are stable at room temperature.

name:
	Simon R. Bare

new+request:
	on

nonmembers:
	

station:
	33ID-D

unacceptable+dates:
	24-29 March
	31 March - 4 April
	28 April - 2 May



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