Radiant energy – Radiation controlling means
Patent
1998-02-06
2000-10-03
Anderson, Bruce C.
Radiant energy
Radiation controlling means
2504923, H01J 3709
Patent
active
06127688&
ABSTRACT:
This invention includes an iso-energetic intensity modulating filter and method for therapeutic charged-particle beams, preferably electron beams, in which attenuating members are arranged to completely attenuate portions of the beam while permitting other portions of the beam to pass through the space between attenuating members. The attenuating members block the charged particles without producing any significant bremsstrahlung contamination in the filtered beam. The attenuating members can be arranged in a large number of configurations to obtain the desired modulated beam intensity profile. This invention also includes an improved iso-energetic, intensity-modulated charged-particle beam produced by the filtering device and method of this invention. A charged-particle beam therapeutic device and treatment method which has the iso-energetic intensity modulating filter is also included in this invention.
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Anderson Bruce C.
The University of Miami
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