The University of Texas System

Hitachi, Ltd.

Other

William Marsh Rice University

Wayne David Newhauser

Hiroshi Akiyama

Kazuo Hiramoto

Alfred Smith

Razmig Messerian

James Francis Ziegler

Chao-tuan Liu

Hisataka Fujimaki

Masaki Yanagisawa

Yoshihiko Nagamine

John Gordon Eley

Pablo P Yepes

Hiroshi c/o Hitachi Ltd Akiyama

Yoshihiko c/o Hitachi Ltd Nagamine

Kazuo c/o Hitachi Ltd Hiramoto

One feature pertains to a radiation dosimeter comprising a microdosimeter cell array that includes a first microdosimeter cell having a first semiconductor volume configured to generate a first current in response to incident radiation. The first semiconductor volume may have at least one of a first size, a first shape, a first semiconductor type, and/or a first semiconductor doping type and concentration that is associated with a first biological cell type or a first biological cell component type. The dosimeter may further comprise a processing circuit communicatively coupled to the microdosimeter cell array and configured to generate a signal based on the first current. The signal generated may be indicative of an amount of radiation absorbed by the microdosimeter cell array. A display may be utilized by the dosimeter to show a radiation level reading based on the signal generated.

Radiation microdosimeters correlated with biological cells and cell components

One feature pertains to a microdosimeter cell array that includes a plurality of microdosimeter cells each having a semiconductor volume adapted to generate a current in response to incident radiation. The semiconductor volumes of each of the plurality of microdosimeter cells have at least one of a size, a shape, a semiconductor type, and/or a semiconductor doping type and concentration that is associated with one or more cells or cell components of a human eye. A processing circuit is also communicatively coupled to the microdosimeter cell array and generates a signal based on the currents generated by the semiconductor volumes of the plurality of microdosimeter cells. The signal generated by the processing circuit is indicative of an amount of radiation absorbed by the microdosimeter cell array.

Radiation detecting wearable devices

The invention relates to a computer readable medium including software instructions, which when executed by a scaling parameters for processor perform a method. The method includes obtaining a first and a second pre-calculated history, wherein the first and the second pre-calculated history corresponds to a first and a second path of particles through a reference material. The method further includes obtaining a first and a second plurality of phase space points and performing a first and a second set of simulations in parallel on a first and a second GPU. Each simulation uses a distinct one of the first and second plurality of phase space points, the geometry information, and the first and second pre-calculated history. The sets of simulations are performed on the GPU's to obtain a set of simulated histories. The method further includes calculating an absorbed dose of energy in the target using the set of simulated histories.

GPU-based fast dose calculator for cancer therapy

The invention is intended to increase the number of patients treatable using one wheel having a thickness varied in the rotating direction to change energy of an ion beam passing the wheel. Ion beam delivery equipment for irradiating an ion beam to a patient for treatment comprises a beam generator for producing and accelerating the ion beam, an beam delivery nozzle including a range modulation wheel which has a predetermined thickness distribution in the rotating direction and is rotated on a travel passage of the ion beam generated from the beam generator to control a range of the ion beam, and an irradiation controller for controlling the beam producing and accelerating operation of the beam generator in accordance with the phase of rotation of the range modulation wheel.

Ion beam delivery equipment and an ion beam delivery method

Ion beam delivery equipment and ion beam delivery method

A therapy system using an ion beam, which can shorten the time required for positioning a couch (patient). The therapy system using the ion beam comprises a rotating gantry provided with an ion beam delivery unit including an X-ray tube. An X-ray detecting device having a plurality of X-ray detectors can be moved in the direction of a rotation axis of the rotating gantry. A couch on which a patient is lying is moved until a tumor substantially reaches an extension of an ion beam path in the irradiating unit. The X-ray tube is positioned on the ion beam path and the X-ray detecting device is positioned on the extension of the ion beam path. With rotation of the rotating gantry, both the X-ray tube emitting an X-ray and the X-ray detecting device revolve around the patient. The X-ray is emitted to the patient and detected by the X-ray detectors after penetrating the patient. Tomographic information of the patient is formed based on signals outputted from the X-ray detectors. Information for positioning the couch is generated by using the tomographic information.

Ion beam therapy system and its couch positioning method

Growing community of inventors

Houston, TX, United States of America

Wayne David Newhauser