John White Symposium

Session

Spectroscopy and other Neutron Techniques

Jul 19, 2024, 11:00 AM

ILL4

17. John White, an early explorer of molecular dynamics by neutron scattering

Joseph Zaccai

7/19/24, 11:00 AM

In the early seventies, John White’s application of inelastic neutron scattering to study dynamics of amphiphiles and macromolecules in solution [1] laid the ground work for studies of biological molecular dynamics by neutron scattering, studies that are still very much of current interest half a century on [2].

[1] John William White, Neutron diffraction, inelastic scattering and the...

14. John White’s contributions to Chemical Spectroscopy

Ron Ghosh

7/19/24, 11:30 AM

The physical chemist H.W."Tommy" Thompson became a fellow and chemistry tutor at St John's College, Oxford (SJC) in the 1930s after studying in Germany with Fritz Haber and Max Planck. He pioneered studies with infrared spectroscopy, notably realising that vibrational spectra were useful identifying fingerprints for molecules. His students at SJC continued diversifying these activities. One,...

6. On the structural changes of edible oils by using green biobased tools to control the functional properties

Tommy Nylander (Physical Chemistry, Lund University, Sweden)

7/19/24, 12:00 PM

Industry needs new natural ingredients – there is a lack of knowledge of the fundamentals of controlling lipolysis in complex matrices. Based on neutron and x-ray data we will show the nature of the oil/water-interphase and how the processes that can occur during lipolysis can change the structure and composition in the interfacial layer. We will discuss how triglycerides can orient at the...

15. White spectra, phase space utilisation, Egelstaff rules and TOF-to-LTD S(Q,w)-easing

Wilfred Fullagar (Australian National University)

7/19/24, 12:20 PM

The eponymous use of white neutron and X-ray radiations by John White has been pursued in various ways, at the interface of chemistry, physics and engineering. John had a dynamic yet gentle and profound influence on several developments of related prototype hard radiation instrumentations and their phase space philosophies, that spanned both major facilities and tabletop equipment. Some...

1. John White and his role at IPNS in the 1980s

Prof. Gerard Lander (ILL)

7/19/24, 12:40 PM

John White played an important role at Argonne National Laboratory when the Intense Pulsed Neutron Source (IPNS) started to operate in the early 1980s. At that time neutron scattering in the US was dominated by physicists, and, as a chemist, John, appointed as a Laboratory Fellow in 1984, was able to talk to many senior scientists at the Laboratory, including the Director, and convince them of...