#
# arev:/usr/local/unicat/unireq/beamreq/req00165.txt
# UNICAT Member Beam Time Request  #165

# created Thu Mar 08 14:32:21 CST 2001
#

collaboration:
	Yes

contact:
	t-chiang@uiuc.edu

days:
	3

description:
	Continuation of low temperature phonon studies of Niobium.  TDS images
	of single crystal Nb will be taken using an optimized CCD set up,
	in a temperature range through the superconducting transition at ~9K.
	Images will be taken also in the presence of a magnetic field to supress
	the transition, and hopefully detect phonon renormalization.
	
	

equipment+required:
	displex / cylindrical BE shroud (for transmission geometry)
	Huber diffractometer (Newport does not allow sample in the center of
	rotation with cylindrical shroud - caused alignment issues last run)

experiment:
	TDS study of superconducting Nb

foreign+nationals:
	

hazards:
	use of cryogenics - closed cycle helium displex
	all samples in solid form and stable in air - do not ingest or inhale.

minimumdays:
	3

name:
	T.-C. Chiang

new+request:
	on

nonmembers:
	

station:
	33ID-D

unacceptable+dates:
	



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