Microdosimetry of a 42 MeV therapy neutron beam.
Int J Radiat Oncol Biol Phys
; 16(3): 845-8, 1989 Mar.
Article
in En
| MEDLINE
| ID: mdl-2493437
ABSTRACT
Radiation quality of fast neutron therapy beams can change with depth. For a neutron beam generated by p----Be, the primary effect is a "hardening" of the neutron beam produced by the scattering of slow neutron components. A 42 MeV neutron therapy beam was investigated using microdosimetric techniques. We report measurements of dose mean and saturation-corrected lineal energy in water phantom at build-up depth, 5, 15, and 30 cm, and show representative logarithmic dose distributions in lineal energy. RBE is also calculated using assumptions based on the Theory of Dual Radiation Action and presented as a function of dose and depth.
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Database:
MEDLINE
Main subject:
Particle Accelerators
/
Radiotherapy, High-Energy
/
Neutrons
Limits:
Humans
Language:
En
Journal:
Int J Radiat Oncol Biol Phys
Year:
1989
Type:
Article