# News: 2021

## April

### Graduate Student Ihar Lobach: Using Fluctuations to Measure Beam Properties

April 1, 2021

Scientists planning future particle accelerators and synchrotron light sources strive for tighter, more powerful electron beams. But as beams get narrower, it becomes harder to measure important properties. Now, Ihar Lobach of the University of Chicago and colleagues have demonstrated a new way to measure a beam’s vertical emittance more precisely than existing methods.

## January

### Roger Hildebrand, Manhattan Project veteran and ‘giant’ of physics and astrophysics, 1922-2021

January 31, 2021

Prof. Emeritus Roger Hildebrand, who worked on the Manhattan Project as an undergraduate before conducting pioneering work in particle physics and astrophysics at the University of Chicago, died Jan. 21. He was 98.

### PUEO Selected by NASA for Pioneers Program

January 8, 2021

NASA has chosen four small-scale astrophysics missions for further concept development in a new program called Pioneers.

PUEO is a balloon mission designed to launch from Antarctica that will detect signals from ultra-high energy neutrinos. The principal investigator is Abigail Vieregg of the University of Chicago.