4 papers · 1 filter
Ion Chamber Collection Efficiencies for Proton Spot Scanning Calibration
Keith M. Furutani, Nicholas N. Remmes, Jon J. Kruse +3
Charge accumulation was measured under calibration conditions in the spread-out Bragg peak (SOBP) using the calibration bias as well as a range of voltages from 10V to 500V and a F…
Monte-Carlo-based 4D robust optimization using physical and temporal uncertainties for intensity-modulated proton therapy
Mark D. Pepin, Erik Tryggestad, Hok Seum Wan Chan Tseung +5
Purpose: Respiratory motion and the interplay effect cause the dose delivered to a patient with spot-scanned proton therapy to differ from the dose planned for during optimization.…
A Monte-Carlo-based and GPU-accelerated 4D-dose calculator for a pencil-beam scanning proton therapy system
Mark D. Pepin, Erik Tryggestad, H. Wan Chan Tseung +3
Purpose: The presence of respiratory motion during radiation treatment leads to degradation of the expected dose distribution, both for target coverage and healthy-tissue sparing,…
Measurement of Dispersion of a Clinical Proton Therapy Beam
Satomi Shiraishi, Michael G. Herman, Keith M. Furutani
Purpose: To measure dispersion of a clinical proton therapy beam. Methods and Materials: The proton center at our institution uses a Hitachi PROBEAT V synchrotron that delivers bea…