LaBr3 detector modules for Next Generation PET scanners
On the left is a schematic of adjacent modules with overlapping photomultiplier tubes while the right is a photograph of a single module with PMT's and 8-mm thick light guide. Improvements in timing resolution for time-of-flight PET is the research of Adjunct Prof. Joel Karp in Penn Radiology.
Professor Bob Hollebeek was the technical lead for the National Library of Medicine sponsored National Digital Mammography Archive, which provides distributed grid systems for medical storage and records handling. Parallel and distributed computing approaches apply to the analysis of data from many fields including medical, scientific, social, and economic data.
Blinking Semiconducting Nanorods
Several clusters of semiconducting nanorods are being illuminated by blue light. The nanorods absorb blue light, become excited and emit red light. The emission of light by individual nanorods occurs in a random fashion with the nanorod turning "on" and "off" for variable lengths of time.
Alternatives to Dark Energy
Perhaps the deepest mystery in physics today is the origin of the accelerating expansion of the universe. Professors Khoury and Trodden work, among other things, on the possibility that it is due to a dark sector with new light degrees of freedom. Screening mechanisms, such as chameleon and symmetron, may explain why such scalars, if light, have escaped detection.
Large Synoptic Survey Telescope at Night
A simulated night sky provides a background for the LSST facilities building on Cerro Pachón. The LSST will carry out a deep, 10 year imaging survey in six broad optical bands over the main survey area of 18,000 square degrees. Penn physicists play important roles in the leadership and anticipated dark energy science that will come from LSST.
Physics PhD candidate Rob Roy Fletcher teams with "hack" group to create
a winning app. RAMEAR, the 1st place winning project of Penn's
thirteenth Penn Apps, is designed to "listen your your computer's Ram
To read more on the project and group please visit the available sources: DP and/or Technical.ly
and Astronomy lab demo coordinator, Bill Berner, strives to entrance
the eyes and minds of curious thinkers through a series of Physics
demonstrations developed by the department of Physics and Astronomy in
collaboration with Penn Online Learning.