Indiana University Bloomington

LENS Past Research Projects

Past Post Doctoral Research Projects

Massimo DeLuca Massimo DeLuca: Advanced Neutron Radiography
Massimo worked on the development of a filter-difference based technique, i.e. a technique able to detect different elements within a sample by means of subtracting various transmission images of the sample obtained with different interposed filters. To test this technique, he also developed a laboratory prototype neutron radiography instrument with the Low Energy Neutron Source (LENS) that produces neutron beams of relatively low energy (around 10 MeV).

Duncan Kilburn Duncan Kilburn: Structure of Soft Condensed Matter/Nano-confined Material
Duncan used various probes of matter (X-rays, neutron, positrons) to observe the different structures of materials in nano-confinement. These probes allow us to 'see' how inter-atomic/molecular interactions are affected by increased surface and finite-number influences.
Claudia Pantelei Claudia Pantelei: Quantum Fluids In Confined Systems
Claudia was involved in the study of liquid systems in nanoporous media by means of neutron scattering techniques.
Shah R. Valloppilly Shah R. Valloppilly: SESAME and Layered Nanostructures
Shah was associated with the development of the Spin Echo Scattering Angle Measurements (SESAME) technique at LENS. The SESAME project aims testing novel methods in neutron spin echo and their implementation to SANS and Reflectometry setups for the study of lateral correlation, dynamics etc. in layered structures and liquids.

Past Graduate Student Projects

Nick Armstrong Nick Armstrong: Neutron Interferometry
Nick worked with the LENS group from 2005 to 2006. His primary activities were in neutron interferometry and he also conducted experiments at the NCNR reactor facility at NIST in Gaithersburg, Maryland.
Kun Chen Kun Chen: Neutron Radiography
Kun wrote a thesis on neutron radiography. The project included the development of a variable-wavelength radiography camera at LENS together with imaging studies peformed at the Paul Scherer Institute in Switzerland.
Peipei Chen Peipei Chen (UIUC NE): Development of a Hypervapotron Be Target
PeiPei was a student in the Nuclear Engineering department of the University of Illinois in Champaign Urbana. His thesis involves a systematic study of the hypervapotron cooling of the type that is used in the high-power LENS target. He performed the primary engineering work on this target as part of his thesis.
Giovanna Danagoulian Giovanna Danagoulian (UIUC NE): Modeling of SESAME
Giovanna was a student in the Nuclear Engineering department of the University of Illinois in Champaign Urbana. Her thesis has included the development of advanced simulation tools that are needed for the correct quantum-mechanical description of polarized neutron transport in a magnetic field. This work is important for the accurate modeling of the SESAME instrument that is being developed at LENS.
Chris Lavelle Chris Lavelle: Neutronics of the LENS Source
Chris's thesis involved the neutronic design of the LENS source. Extensive Monte Carlo (MCNP) modeling of neutron transport within the LENS Target-Moderator Reflector assembly has been combined with emission time and spectral measurements of the LENS source. His work also included studies of ways to improve the performance of the LENS source.
Nicholas Remmes Nicholas Remmes: SANS on Nanoparticles
Nick's thesis involved the design and commissioning of the SANS instrument at LENS. He is investigated the structure of both dendrimers and polymer coated magnetic nanoparticles with SANS measurements at IPNS and NIST while the SANS instrument was being constructed. In addition he has studied the magnetic properties of the nanoparticles. Nick defended his thesis in the spring of 2007.
Yunchang Shin Yunchang Shin: Development of Ultra-Cold Neutron Moderators
Yun studied the low-energy properties of solid methane in order to develop scattering kernels suitable for use at temperatures below 20K (the lowest temperature for which kernels presently exist). This work is of relevance to the efforts of LENS to produce very cold neutrons and is also of importance to the development of new ideas for producing Ultra-Cold Neutrons (a topic of considerable interest to the Nuclear Physics group at IU).

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