De: Boris Khaykovich Envoyé: lundi 21 mars 2011 22:19 À: neutron@neutronsources.org Objet: [Neutron] Post-doctoral position in neutron optics research at the MIT Nuclear Reactor Laboratory Post-doctoral position in neutron optics research at the MIT Nuclear Reactor Laboratory. Our group at MIT has a post-doctoral position opening in neutron optics research. Experience and interest in neutron (or x-ray) scattering methods and instrumentation are important prerequisites for this position. MIT has a long history of groundbreaking research in neutron science and currently several faculty members are involved in both applications of neutron scattering and neutron instrumentation. Recently we have demonstrated neutron beam focusing by axisymmetric mirror systems based on a pair of mirrors consisting of a confocal ellipsoid and hyperboloid (http://dx.doi.org/10.1016/j.nima.2010.11.110). Such a system, known as a Wolter mirror configuration, is commonly used in x-ray telescopes. This position would emphasize the development of these novel optics for neutron applications such as SANS and imaging, with special interest in improving the performance of instruments at Spallation Neutron Source (SNS). The successful candidate will design and optimize focusing optics for particular neutron instruments, using both ray-tracing simulations and measurements of test mirrors. The design includes modeling and measurements of the effects of figure errors and surface roughness. (The MIT Nuclear Reactor Laboratory has a new neutron spectrometer with an optics test station, which is used in the neutron optics research program.) The opportunity will exist to use the new mirrors for neutron experiments at SNS or other facilities, especially for SANS and imaging. This project is conducted in collaboration with the x-ray optics group at NASA and with scientists at SNS. Contact: Dr. Boris Khaykovich bkh@mit.edu Boris Khaykovich, PhD Massachusetts Institute of Technology Nuclear Reactor Laboratory NW13-242 77 Massachusetts Ave., Cambridge, MA 02139, USA Phone: +617-253-2861 e-mail: bkh@mit.edu _______________________________________________ Neutron mailing list Neutron@neutronsources.org https://email.ornl.gov/mailman/listinfo/neutron