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# Ruqing Xu <ruqingxu@uiuc.edu>
# requesting 7 days, at minimum=5 days
# beamline 34ID, "the TDS study on Cr and MgB2 crystals"
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# top:/home/www/beamtime-requests/req00391.txt
# UNICAT Member Beam Time Request  #391
# created Mon Mar 17 16:14:21 CST 2003
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beamline:
	34ID

collaboration:
	Yes

collaborator+Hawoong:
	on

contact:
	ruqingxu@uiuc.edu

days:
	7

description:
	Incident a beam of monochromatic x-ray on small grains of MgB2 and Cr crystals and record the Thermal Diffuse Scattering(TDS) patterns, which give information of phonon dispersion relations in these crystals. Since Cr has a spin density wave with a Neel temperature of about 317K, we'll see how the TDS pattern changes through this temperature.
	
	this work needs non-parasitic mode of operation

equipment+required:
	Bendable K-B mirrors for micro focusing
	Bruker diffractometer

experiment:
	the TDS study on Cr and MgB2 crystals

foreign+nationals:
	Ruqing Xu

hazards:
	

minimumdays:
	5

name:
	Ruqing Xu

nonmembers:
	

unacceptable+dates:
	May 28 -- Jul 20


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