Version 2.1.1.0 |
![]() |
![]() ![]() ![]() |
Abstract
Grant Number: 1R43CA103502-01 PI Name: VELAZCO, JOSE E. PI Email: jvelazco@microwavetech.com PI Title: Project Title: Compact 6 MeV Rotating-Wave Accelerator for Radiotherapy Abstract: DESCRIPTION (provided by applicant): We propose the development of a very compact, rotating-wave electron beam accelerator (RWA) for x-ray radiotherapy applications. The proposed accelerator employs a very short accelerating structure to accelerate a low-energy electron beam to a final energy of 6 MeV in a highly efficient manner. The RWA offers twice the efficiency of conventional small accelerators in addition to having a greater degree of simplicity and a more compact design. Based on its high efficiency and compactness, we estimate a reduction in the price of the entire system by a factor of 2. Also since the RWA requires half the electrical power to operate, this should translate to a 50% savings in electrical power costs in the day-to-day operation of the accelerator. Earlier testing of a C-band prototype has successfully demonstrated the operation of this new accelerator where a 3 keV electron beam was accelerated to the goal 800 keV using only 80 kilowatts of power. Our preliminary studies indicate that with a six-inch long cavity we can produce a 6 MeV electron beam using half of the microwave power of that required by state-of-the-art radiotherapy machines. During Phase I we will perform a thorough design of the accelerating cavity and magnetic system that should lead to the construction and testing of a 6 MeV medical accelerator system in Phase II. Once fully developed, the rotating-wave accelerator could be the basis for a new class of very compact 6 MeV radiotherapy accelerators that should be affordable for small clinics and hospitals around the country.
Thesaurus Terms:
X ray, biomedical equipment development, miniature biomedical equipment, neoplasm /cancer radiation therapy, particle accelerator
electron radiation
bioengineering /biomedical engineering
Institution: MICROWAVE TECHNOLGIES, INC. 10386B DEMOCRACY LN FAIRFAX, VA 22030 Fiscal Year: 2003 Department: Project Start: 01-AUG-2003 Project End: 31-JAN-2004 ICD: NATIONAL CANCER INSTITUTE IRG: ZRG1
![]()
![]()
![]()