摘要:
The invention relates generally to treatment of solid cancers. More particularly, the invention relates to a multi-field charged particle cancer therapy method and apparatus coordinated with negative ion beam creation, ion beam focusing, charged particle acceleration, patient rotation, and/or patient respiration. Preferably, the charged particle therapy is performed on a patient in a partially immobilized and repositionable position. Proton delivery is preferably timed to patient respiration via control of charged particle beam injection, acceleration, and/or targeting methods and apparatus.
摘要:
Devices and corresponding methods of use are described herein that may include an enclosing structure defining a closed loop flow path and a system generating a plasma at a plasma site, e.g. laser produced plasma system, where the plasma site may be in fluid communication with the flow path. For the device, a gas may be disposed in the enclosing structure which may include an ion-stopping buffer gas and/or an etchant. A pump may be provided to force the gas through the closed loop flow path. One or more heat exchangers removing heat from gas flowing in the flow path may be provided. In some arrangements, a filter may be used to remove at least a portion of a target species from gas flowing in the flow path.
摘要:
An ultra-small resonant structure that produces electromagnetic radiation at selected frequencies that can also be used or formed in conjunction with passive optical structures. The resonant structure can be produced from any conducting material. The passive optical structures can be formed from glass, polymer, dielectrics, or any other material sufficiently transparent using conventional patterning, etching and deposition techniques. The passive optical structures can be formed directly on the ultra-small resonant structures, or alternatively on an intermediate structure, or the passive optical structures can be formed in combination with other passive optical structures. The size and dimension of the passive optical structures can be identical with underlying structures, they can merely extend outwardly beyond an exterior shape of the underlying structure, or the passive optical structures can span across a plurality of the underlying structures, including in each instance embodiments with and without the intermediate structures.
摘要:
The invention relates to a device for producing a small quantity of a radioactive substance compound, comprising a single-component body, a mixing device which is integrated into the body and used to receive a small quantity of chemical substances, and at least one container which is integrated into the body, connected to the mixing device, and used to receive a small quantity of a chemical substance.
摘要:
A device for concentrating 99m Tc pertechnetate and a method thereof are disclosed. The device includes a concentration device, a control device and a central processing unit. The concentration device is for concentrating 99m Tc pertechnetate, the control device connects with each members of the concentration device, and the central processing unit is used for saving an automatic control program. The automatic control program is run by the central processing unit so as to detect and monitor weight as well as activity of the concentrated 99m Tc pertechnetate. Due to the automatical control, the concentration quality and production efficiency of the 99m Tc pertechnetate are improved. Moreover, the radiation dose received by users is reduced.
摘要:
A shield structure (200) and focal spot control assembly (250) is provided for use in connection with an X-ray device (100) that includes an anode (114) and cathode (112)disposed in a vacuum enclosure (102) in a spaced apart arrangement so that a target surfac of the anode is positioned to receive electrons emitted by the anode.