Micro‐focused Small Angle Neutron Scattering and Imaging for Science and Engineering Using RTP—A Preliminary Study

Malaysian Nuclear Agency’s (Nuclear Malaysia) Small Angle Neutron Scattering (SANS) facility—(MYSANS)—is utilizing low flux of thermal neutron at the agency’s 1 MW TRIGA reactor. As the design nature of the 8 m SANS facility can allow object resolution in the range between 5 and 80 nm to be obtained. It can be used to study alloys, ceramics and polymers in certain area of problems that relate to samples containing strong scatterers or contrast. The current SANS system at Malaysian Nuclear Agency is only capable to measure Q in limited range with a PSD (128×128) fixed at 4 m from the sample. The existing reactor hall that incorporate this MYSANS facility has a layout that prohibits the rebuilding of MYSANS therefore the position between the wavelength selector (HOPG) and sample and the PSD cannot be increased for wider Q range. The flux of the neutron at current sample holder is very low which around 103 n/cm2/sec. Thus it is important to rebuild the MYSANS to maximize the utilization of neutron. Over the ...

[1]  S. Armes,et al.  Toward a new lower limit for the minimum scattering vector on the very small angle neutron scattering spectrometer at Laboratoire Leon Brillouin , 2008 .

[2]  J. Oberdisse,et al.  The new very-small-angle neutron scattering spectrometer at Laboratoire Léon Brillouin , 2007, 0706.1734.

[3]  John D. Budai,et al.  High-performance Kirkpatrick-Baez supermirrors for neutron milli- and micro-beams , 2006 .

[4]  Terrence Jach,et al.  Variable Magnification With Kirkpatrick-Baez Optics for Synchrotron X-Ray Microscopy , 2006, Journal of research of the National Institute of Standards and Technology.

[5]  M. Kumakhov Neutron capillary optics: status and perspectives , 2004 .

[6]  J. Stahn,et al.  Optimisation of a crystal design for a Bonse–Hart camera , 2003 .

[7]  M. W. Johnson,et al.  An experimental test of a neutron silicon lens , 2002 .

[8]  M. Agamalian,et al.  Flux gain for next-generation neutron-scattering instruments resulting from improved supermirror performance , 2001, SPIE Optics + Photonics.

[9]  Ferenc Mezei,et al.  Monte Carlo simulation of crystal monochromators/analysers – Applications for the crystal-analyser neutron spectrometer IRIS , 2001 .

[10]  A. Stoica,et al.  Neutron reflectivity and lattice spacing spread of pyrolytic graphite , 2000 .

[11]  R. K. Crawford,et al.  Neutron Transmission of a Single-Crystal MgO Filter , 1998 .

[12]  P. Lukas,et al.  Double-Bent-Crystal Small-Angle Neutron Scattering Setting and its Applications , 1997 .

[13]  S. Radiman,et al.  Performance of a new small-angle neutron scattering instrument at the malaysian TRIGA reactor , 1997 .

[14]  R. K. Crawford,et al.  Tailoring beams for small-angle neutron diffractometers , 1988 .