Physics and Astronomy Colloquium Series

Next Seminar

Thursday, March 30, 2017
4:00 PM

Dr. John Ready

UC Davis Medical Center
Sac State Alum Class of 2004

"Development of a Multi-knife-edge Slit Collimator for Prompt Gamma Ray Imaging During Proton Beam Cancer Therapy"

Abstract: Proton beam therapy to treat cancer has recently experienced rapid growth, as it offers the ability to target dose delivery in a patient more precisely than traditional x­-ray treatment methods. Protons stop within the patient, delivering the maximum dose at the end of their track—a phenomenon described as the Bragg peak. To realize the maximum potential benefits of proton therapy, the precise location of the Bragg peak must be measured. Yet, current technology does not provide a method to determine the Bragg peak location and verify that the desired dose was delivered as planned. This work presents a novel system to image prompt gamma rays emitted during proton therapy to verify proton beam range. The imaging system consists of a multi­-slit collimator paired with a position-­sensitive LSO scintillation detector. The goal of the project is to ultimately provide Bragg peak localization on the order of 1 mm.

The Physics and Astronomy Colloquium Series is open to all members of the university. Unless otherwise noted, talks are held on Thursday afternoons at 4:00-5:20 in Mendocino 1015. Schedule is regularly updated as dates, titles, and abstracts are received. Please check back often. To receive updates about the Colloquium Series, please join our Events Mailing List. For past semesters' series, see our archive.

Spring 2017 Semester Schedule

February 7, 2017
*Note: Tuesday Colloquium*
Dr. Rodolfo Barniol Duran
Purdue University
"Following Astrophysical Jets from Birth to Glory"

February 9, 2017
Dr. Samantha Fonseca dos Santos
Drake University
"Electron and Photon Impact Induced Processes in Molecules"

February 14, 2017
*Note: Tuesday Colloquium*
Dr. Joshua Willis
Abilene Christian University
"Finding a Needle in a Haystack: LIGO's First Observations and Gravitational Wave Searches"

February 16, 2017
Dr. Kassahun Betre
Stanford University
"Spacetime Geometry from Quantum Graphity"

March 2, 2017
Prof. Sebastian Wachsmann Hogiu
McGill University and UC Davis
"Point of Care Technologies for Blood Testing"

March 16, 2017
Prof. Troy Topping
Sacramento State
 "Nanostructured Aluminum Alloys and their Composites"

March 30, 2017
Dr. John Ready
UC Davis Medical Center
"Development of a Multi-knife-edge Slit Collimator for Prompt Gamma Ray Imaging during Proton Beam Cancer Therapy"

April 6, 2017
Prof. Monika Schleier-Smith
Stanford University

April 20, 2017
Mr. Henry Garcia
Pixar Animation Studios
Sacramento State Physics Alumnus
"To Infinity and Beyond"

May 4, 2017
Senior Project Talks

May 9, 2017
Senior Project Talks

May 11, 2017
Senior Project Talks