Programs

MAX IV Magnet Design and Storage Ring Magnet Status
Abstract:
Martin will present a general introduction to the MAX IV magnet block design concept. He will also present the current production status, specific field measurement results and alignment of magnet elements within magnet blocks. Following the talks Martin will be available for a question and answer session until 4:00 p.m.

FePt HAMR Recording Media: Progress and Requirements
Abstract:
Currently, data storage based on perpendicular magnetic recording is approaching 1Tb/in2 density. Further progress is, however, limited by thermal stability of CoCrPt alloy magnetic media and recording field gradients.

In this talk I will describe novel heat assisted magnetic recording technology (HAMR), which potentially allows to extend recording densities to 3-4Tb/in2.

Anomalous Josephson Current in Superconductor Topological Insulator Devices
Abstract:
Josephson junctions (JJs) with topological insulator weak links are expected to host low-energy Andreev bound states (ABSs) giving rise to a current-phase relation that sharply deviates from a conventional sinusoidal behavior. Of particular interest are zero-energy Majorana bound states that form either at a vortex or when a phase difference of is imposed between the two closely-spaced superconducting leads of the junction.
The Real Science Behind Star Trek
The Chicago Council on Science and Technology presents "The Real Science Behind Star Trek" Wednesday, April 2, 6 p.m. to 7:30 p.m. at the University of Illinois at Chicago (UIC), Behavioral Science Building (BSB).

Abstract:
Star Trek is a story of exploration that has fascinated us for the last 50 years.

First Performance Results for the ATLAS Intensity Upgrade Cryomodule
Abstract:
The cryomodule of seven superconducting niobium cavities installed and just commissioned at the middle of the ATLAS linac is the product of four years of effort by the linac development group to incorporate essentially all of the technology and techniques developed here and elsewhere over the past decade. The cavities, optimized for beta=0.077, are the only example of operational low-velocity niobium cavities with performance approaching the fundamental material limits.
X-ray Diffraction from Perfect Crystals

The 100th Anniversary of the First Calculations by C.G. Darwin

Abstract:
In 1914, C. G. Darwin published two papers that established some of the basic features of X-ray diffraction in perfect crystals. One of those features was near-unity reflectivity over a narrow angular range at the Bragg condition, a phenomenon that is still known as the "Darwin width" of the reflection. The talk will briefly describe his calculational approach to scattering in perfect crystals, impact of those calculations, and other aspects of Darwin’s life and work.