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Title: Setup for in situ x-ray diffraction study of swift heavy ion irradiated materials

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.2804171· OSTI ID:21024591
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  1. Inter-University Accelerator Centre, P.O. Box 10502, New Delhi 110067 (India)

An in situ x-ray diffraction (XRD) setup is designed and installed in the materials science beam line of the Pelletron accelerator at the Inter-University Accelerator Centre for in situ studies of phase change in swift heavy ion irradiated materials. A high vacuum chamber with suitable windows for incident and diffracted X-rays is integrated with the goniometer and the beamline. Indigenously made liquid nitrogen (LN{sub 2}) temperature sample cooling unit is installed. The snapshots of growth of particles with fluence of 90 MeV Ni ions were recorded using in situ XRD experiment, illustrating the potential of this in situ facility. A thin film of C{sub 60} was used to test the sample cooling unit. It shows that the phase of the C{sub 60} film transforms from a cubic lattice (at room temperature) to a fcc lattice at around T=255 K.

OSTI ID:
21024591
Journal Information:
Review of Scientific Instruments, Vol. 78, Issue 11; Other Information: DOI: 10.1063/1.2804171; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
Country of Publication:
United States
Language:
English