Title :
Muons versus hadrons for radiotherapy
Author :
Mokhov, N.V. ; Van Ginneken, A.
Author_Institution :
FNAL, Batavia, IL, USA
Abstract :
Intense low energy muon beams-as part of a muon collider complex-may become available for use in radiotherapy. It is of interest to compare their effectiveness in this application with that of hadron beams in a setting where processes common to these beams are treated exactly alike. Detailed simulations of physics processes for muon, proton, antiproton, neutron, kaon and pion beams stopping in various media have been performed using the MARS code with newly developed weighted algorithms. Special attention is paid to μ-, π -, and p¯ capture on light nuclei. Calculated distributions of energy deposition and dose equivalent due to processes involving primary beams and generated secondaries are presented for a human tissue-equivalent phantom (TEP). The important ratio of dose delivered to healthy tissue vs. dose to tumor is examined within this model. The possibility of introducing heavier elements into the tumor to increase capture of stopped μ- is briefly explored
Keywords :
dosimetry; energy loss of particles; muon capture; neutron beams; proton beams; radiation therapy; MARS code; antiproton beam; antiproton capture; beam stopping; dose; dose equivalent; energy deposition; hadrons; healthy tissue; kaon beam; muon beams; muon collider; muon- capture; neutron beam; pion beam; pion- capture; proton beam; radiotherapy; tissue-equivalent phantom; tumor; Humans; Imaging phantoms; Mars; Mesons; Muon colliders; Neoplasms; Neutrons; Particle beams; Physics; Protons;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.792754