| US 7,519,149 B2 | ||
| Small field intensity modulated radiation therapy machine | ||
| Thomas R. Mackie, Verona, Wis. (US); Stewart J. Becker, New York, N.Y. (US); and Robert Jeraj, Madison, Wis. (US) | ||
| Assigned to Wisconsin Alumni Research Foundation, Madison, Wis. (US) | ||
| Appl. No. 11/576,358 PCT Filed Mar. 27, 2006, PCT No. PCT/US2006/011110 § 371(c)(1), (2), (4) Date Mar. 30, 2007, PCT Pub. No. WO2006/107637, PCT Pub. Date Oct. 12, 2006. |
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| Claims priority of provisional application 60/667480, filed on Apr. 01, 2005. | ||
| Prior Publication US 2007/0242801 A1, Oct. 18, 2007 | ||
| Int. Cl. A61N 5/10 (2006.01) | ||
| U.S. Cl. 378—65 [378/37] | 18 Claims |
| 1. A small field radiation therapy machine comprising:
a radiation source providing a radiation beam directed along a beam axis from a radiation origin;
a support rotatably guiding the radiation origin to be constrained within a rotation plane about a rotation axis, so that
the beam axis is directed across a rotation axis and the radiation origin is separated from the rotation axis by no more than
60 cm; and
a beam modulator independently controlling the radiation fluence of multiple rays within the radiation beam.
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