Woodruff School of Mechanical Engineering

NRE 8011/8012 and MP 6011/6012 Seminar

Nuclear & Radiological Engineering and Medical Physics Programs


Proton research in Iowa: Stay positive (p+)!


Dr. Dan Hyer


Associate Professor, Medical Physics Residency Director, University of Iowa


Thursday, January 31, 2019 at 11:00:00 AM


Boggs Building, Room 3-37


C. K. Wang


Pencil beam scanning (PBS) proton therapy offers a key advantage over photon therapy: the proton beam can stop sharply at a pre-defined depth, allowing sparing of normal tissue beyond the tumor. While the ability to spare tissues distal to the tumor with proton therapy is excellent, the lateral tissue sparing lags behind that of photon therapy. This is especially true when targeting brain, pediatric, or head and neck tumors, which require use of a low energy proton beam due to the relatively shallow depth of the target. Low energy proton beams are more susceptible to lateral dose spread due to scatter in the beam delivery system, resulting in unwanted radiation dose being delivered to the healthy tissue surrounding the target. This talk will focus on the development of a new technology to minimize this spread.


A native Yellow Jacket, Dan completed his BS in Mechanical Engineering and his MS in Medical Physics at Georgia Tech. He continued his education at the University of Florida, earning his PhD in Medical Physics in 2010. Upon graduation, he moved to the University of Iowa, where he currently works as an Associate Professor and the Director of the Medical Physics residency program. His research interests include MRI-guided radiotherapy and proton beam therapy.


Meet the speaker