Monitor units calculation method for proton fields

Details Monitor units calculation method for proton fields Monitor units calculation method for proton fields

2011-07-26

2011-07-26

Charioui, Mohamed (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

C702S179000, C702S189000

Reexamination Certificate

active

07987053

ABSTRACT:
A method for determining a monitor unit that is associated with a process using ions, includes obtaining a depth dose curve, determining a characteristic parameter based on the depth dose curve, and using the characteristic parameter to determine a first monitor unit factor. A system for determining a monitor unit that is associated with a process using protons, includes a processor that is configured for obtaining a depth dose curve, determining a characteristic parameter based on the depth dose curve, and using the characteristic parameter to determine a first monitor unit factor.

REFERENCES:
patent: 4849248 (1989-07-01), Hashimoto
patent: 2003/0236646 (2003-12-01), Suzuki
Best Medical Canada, ‘Depth Dose Measurements using MOSFETS, diodes and ion chambers’, 2000, Technical Note, pp. 1-4.
Price, ‘Calculating percent depth dose with the electron pencil beam redefinition algorithm’, 2007, pp. 61-75.
Levin et al., 'Proton Beam Therapy, 2006-2007, pp. 106-117.
Kooy et al. “Monitor Unit Calculations for Range-Modulated Spread-out Bragg Peak Fields”. Phys. Med. Biol. 48 2797-2808. 2003.
Kooy et al. “The Prediction of Output Factors for Spread-out Proton Bragg Peak Fields in Clinical Practice”. Phys. Med. Biol. 48 2797-2808. 2005.

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