#
# arev:/usr/local/unicat/unireq/beamreq/req00062.txt
# UNICAT Member Beam Time Request  #62

# created Fri Jun 18 16:15:27 CDT 1999
#

days:
	1

description:
	Fe-0.9Cu-1.0Mn is a model used to characterize the 
	very fine embittled microstructure present in 
	reactor pressure vessel steels.  This alloy has 
	been the subject of comparative studies examining 
	mechanical property changes induced by electron irradiation.
	
	ASAXS is needed to isolate the scattering from Cu-rich 
	precipitation in the presence of other types of scatterer.  
	The USAXS instrument is capable of performing these measurements 
	near the Cu K edge, even in the presence of Fe flourescence 
	since the analyzer crystal serve as a scattered beam monochromator.
	
	Also, the USAXS instrument will provide us with an absolute
	cross-section measurement for making quantitative determinations
	about the amount precipitation.
	
	If possible, we would like to also measure the ASAXS from the 
	Mn precipitation.
	
	

equipment+required:
	USAXS instrument.

experiment:
	ASAXS of Cu-precipitation in Fe-0.9Cu-1.0Mn steel

hazards:
	No hazards.

name:
	Pete Jemian

new+request:
	on

nonmembers:
	Dale Alexander, ANL/MSD

station:
	33ID-D

unacceptable+dates:
	Dale is unavailable 8/1-8/15, 8/18-8/19, 9/10-21



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