Nuclear Chemistry@Indiana Vic Viola Summer 2005 ().

Nuclear Chemistry@Indiana

Vic Viola

Summer 2005 (http://nuchem.iucf.indiana.edu)

• authored 175 journal publications

• 82 conference proceedings

• numerous talks at seminars, conferences, and workshops

• served as PhD advisor for 18 graduate students

• mentored 15 postdoctoral fellows

• Three undergrads won Undergraduate ACS award in Nuclear Chemistry

Vic as a prolific scientist

(see symposium brochure for details)

Viola, V.E. Angular distributions from heavy-ion-induced fission. Ph.D. Thesis, University of California, Berkeley, 1961.

Despite his cosmopolitan outlook, Vic is without question a Midwesterner – after all he was born in Abilene, Kansas

He received an A.B in 1957 from the University of Kansas (but did you know he started out as an English major?)

He was awarded his Ph.D. in 1961 from the University of California, Berkeley (where he was active on many fronts…)

Where does Vic do all that writing (including “Letters to the editor”) ?

Vic and Nancy, relaxing in their backyard

Always an experimentalist at heart

The equipment seems to change but Vic doesn’t…

“Historically, chemists have played an active role in the study of nuclear interactions between complex nuclei. […]”

Vic is the quintessential interdisciplinary scientist

As a chemist, Vic has concerned himself not only with the reactions nuclei undergo (fission, damped reactions) but with their possible phase transition from a liquid to a gas.

Time (years)

# of atoms

The way Vic looks

1986

20002004

Time (years)

# of atoms

The way Vic looks

2004

From the slope of this line we can predict Vic will be doing well 20 years from now – but how about the other direction ?

Vic is always blazing new trails. Here he is on the Appalachian Trail in 1978

About to go out on a protest- the Berkeley days.

Vic, we always knew you were a soldier at heart!

Vic and sports

Dave Bracken, LANL

Erin Renshaw

Kevin Morley, LANL

These are the students who built ISiS?

Vic’s nuclear family(students, postdocs, and collaborators)

Microsoft

Vic’s “other” family

Vic’s “other” family

Charley, Randy, and Gina trust that Dad will figure out how to operate this complex device.

The ISiS adventure

Reproducing the condition of high temperature on earth

Bringing Stars Down to Earth Victor Viola, Distinguished Professor of Chemistry, and Kris Kwiatowski, Senior Scientist in Chemistry, both at Indiana University Bloomington, and Lai Wan Woo (right to left), who served as a computer consultant in the design of the Indiana Silicon Sphere detector array (ISiS), are in front of the central control panels at the Indiana University Cyclotron Facility. In the foreground, the monitor screen shows a line drawing of the ISiS detector assembly.

Indiana University, Research & Creative ActivityApril 1998 Volume XXI Number 2

“…thermo physics of nuclei as mesoscopic clusters and of the process of liquid-vapor phase transition...”– I.Y. Lee

Left to right: Gary Fleener, John Dorsett, Kenny Bastin

Nothing but the finest as ISiS goes to Saclay for its first experiment

Kris Kwiatkowski at SATURNE

ISiS goes to Brookhaven National Lab (AGS)

Themes in Vic’s research

1960 1970 1980 1990 2000

Fission

Damped Reactions

Non-equilibrium light particle emission

Multifragmentation and the nuclear

liquid-gas phase transition

Nucleosynthesis

Probability for emitting one or more IMF exceeds probability for emitting none.

Charge distribution (Z) becomes flat.

Onset of an expansion

IMF Emission time becomes very

short

L. Beaulieu et al., PRL 84 5971 (2000)

Several quantities tell us that something unusual happens at E*/A=4-6 MeV for a Au nucleus

Liquid-gas Phase transition?

… and the irony is … After 40 years we are returning to study fission, specifically the fission of N/Z exotic nuclei

K.-H. Schmidt, J. Benlliure, and A.R. JunghansNucl. Phys. A693, 169 (2001)

Moller, Madland, Sierk, and IwamotoNature 409, (2001) 785-790.

Fission in the Era of Radioactive Beams

Courtesy of Indiana University

December 2000, Vic is the recipient of the 2000 Tracy M. Sonneborn Award

http://broadcast.iu.edu/lectures/sonneborn

“I recognized a long time ago that if you can define a problem for students, give them the resources to work on that problem, you get remarkable results…” – Vic Viola, Tracy M. Sonneborn lecture Dec. 2000

Thanks Vic!(from all the past and present members of the

Nuclear Chemistry group at Indiana)