Showing papers by "D.L. Friesel published in 2003"
12 May 2003
TL;DR: The Indiana University Midwest Proton Radiotherapy Institute (MPRI) as mentioned in this paper is a state-of-the-art proton radiotherapy facility at the University of Indiana.
Abstract: Phase I construction of the Indiana University Midwest Proton Radiotherapy Institute (MPRI), including many reliability upgrades to the IUCF k220 cyclotron, construction of a variable energy proton Beam Delivery System (BDS), a horizontal beam Treatment Room with a Large Field Nozzle, and a Medical Clinic, is now complete. Commissioning of the BDS and the Large Field Nozzle is underway. Patient Treatment with this nozzle is scheduled to begin in late July 2003. This contribution discusses the unique features of the MPRI Cancer Treatment facility and the present Phase I commissioning results. In addition, two 360/spl deg/ rotating gantry systems were purchased from IBA in December 2002 for Phase II construction. The first gantry is scheduled for delivery in July 2003. The Phase II construction and installation schedule will also be briefly presented.
24 citations
12 May 2003
TL;DR: In this article, a 750 keV proton injector is installed in place of a 600 kV Cockroft-Walton high voltage terminal at the Indiana University Cyclotron Facility.
Abstract: A 750 keV proton injector is being installed in place of a 600 kV Cockroft-Walton high voltage terminal at the Indiana University Cyclotron Facility. The injector features a microwave ion source, a 20 keV to 750 keV CW RFQ and a quadrupole triplet to focus the beam into the 15 MeV injector cyclotron. Two solenoids and one pulsed lens are used to match the 20 keV proton beam to the RFQ and to rapidly change the beam intensity. The injector has been tested offline; the results will be described in this paper.
4 citations
12 May 2003
TL;DR: In this paper, the suitability of the IUCF Cooler Injector Synchrotron (CIS) as a potential replacement or supplement to the Indiana University Cyclotron as a source of proton beams for the Midwest Proton Radiotherapy Institute (MPRI) was investigated.
Abstract: Studies have been carried out to determine the suitability of the IUCF Cooler Injector Synchrotron (CIS) as a potential replacement or supplement to the Indiana University Cyclotron as a source of proton beams for the Midwest Proton Radiotherapy Institute (MPRI). The primary modification to the synchrotron would be the development of a slow extraction system. An achromatic beam line connecting CIS and the MPRI beam trunk line has been designed and could use magnets from the recently decommissioned Cooler ring at IUCF. In addition to providing redundancy, this project would increase the proton energy to 240 MeV and could provide higher resolution beams to the radiation effects target stations.