41 results about "High-dose radiation" patented technology

A system for delivery of high dosage of radiation to a targeted spinal area is provided. This is accomplished by a system which provides for precise immobilization and positioning of the treated spinal area during dose planning and treatment via stereotactic radiosurgery. Advantages of the system include convenience to the patient, enhanced efficacy, and reduced risk of radiotoxicity to non-target tissues.

A modified Fletcher-Suit tandem tube applicator includes a balloon which can be inflated to both positionally secure the applicator within the vaginal canal and to distend the confronting vaginal wall thereby increasing the distance of such tissue from the radioactive source contained in the tandem tube of applicator and correspondingly reducing radiation damage to nearby tissues and organs such as the rectum and bladder.

A radiotherapy system comprising at least one pulsed radiation source, at least one imaging system, a control system, and a synchronization system is disclosed. The pulsed radiation source deposits high dose radiation pulses to a target region inside the patient; simultaneously the imaging system is used to monitor the target region, synchronized by the synchronization system. The dose per radiation pulse is high enough to deposit, within few pulses, 1 Gy at a depth of at least 1 cm in water. At each irradiation time step, the pulsed radiation source delivers short pulses of radiation (<1 ms) and the imaging system performs a snapshot of the position, and eventually the shape, of the target region during the irradiation time, with a time resolution better than 200 ms. Being both the pulsed radiation source and imaging system synchronized by the synchronization system with less than 200 ms jitter, this system allows for very precise reconstruction of the map of the dose deposited into the target region.

A microcomputer usable for a long period of time even when disposed in a high dose radiation-exposed environment, and its access speed control method are provided. According to the microcomputer and the method, the total dose of radiation that the microcomputer receives is determined on the basis of detection signals from a radiation detecting element. Based on the determined total dose of radiation, and table data preset by tests and stored into a memory unit, a CPU controls an access speed. Moreover, the CPU, and the memory unit and a circuit interface unit that access the CPU are integrated on a single chip (ASIC) These units on the same chip are deteriorated and changed in the same direction, without fail, on exposure to radiation.

An X-ray apparatus for image acquisition and a related method. The apparatus comprises a field-of-view corrector (CS) configured to receive a scout image (SI) acquired by the imager with a tentative collimator setting in a pre-shot imaging phase where said imager operates with a low dosage radiation cone causing the detector to register the scout image. The low dosage cone has, in the detector's image plane, a first cross section smaller than the total area of the detector surface. The field-of-view corrector (CS) uses said scout image to establish field-of-view correction information for a subsequent imaging phase where the imager is to operate with a high dosage radiation cone, the high dosage higher than the low dosage.

Cancer treatment is provided, by irradiating an individual with a localized, high single dose or short course of doses at a primary tumor site; collecting T cells from the individual after a period of time sufficient activation of an anti-tumor response; treating the individual with an effective dose of dose of chemotherapy; and reintroducing the T cell population back to the individual.

Enhancing the effectiveness of therapeutic ionizing radiation and other treatments of disease in which cells are to be destroyed or modified, by subjecting cells in need thereof to low-dose radiation to increase the sensitivity of the cells to subsequent subjection with a lethal dose of high dose radiation (HDR), a chemotherapeutic agent, or other type of therapeutic treatment.

The invention discloses a movable box type combined shielding system which comprises a container, an in-box radiation shield, an out-box radiation shield and a photon shielding plate. A radioactive source generating device is arranged in the container; the space between the radioactive source generating device and the inner wall of the container is fixedly filled with the in-box radiation shield; the outer wall of the container is detachably covered with the out-box radiation shield; the photon shielding plate is arranged on the outer wall of the container in a sliding mode and used for sliding to an active area when the out-box radiation shielding body is detached to shield active area rays. According to the movable box type combined shielding system, the radioactive source generating device can run and be transported in the container; when the radioactive source generating device runs, the in-box radiation shield and the out-box radiation shield can be combined to shield high-dose radiation generated when the radioactive source generating device runs; when a container body is transported, the in-box radiation shield and the container body are detached, and the photon shielding plate moves to the active area to shield rays generated by neutron activation of a container active area structure material.

An apparatus for testing a high-dose-rate afterloader machine comprising an image capturing device that used to capture a plurality of still images or a real-time video, wherein said image capturing device further comprises, a zoom lens, a microphone and a light, a measurement ruler that is located on a base plate; a plurality of calibration points located on the said base plate, a source insert that connects to said high-dose-rate afterloader machine to one end, wherein said source insert allows entry of a radioactive pellet and a source wire into one end, and an adjustable shaft that is connected to said base plate and connected to said image capturing device.

A high radiation dosage resistant cable is disclosed. The cable comprises a plurality of conductors, an insulating layer, a wrapping layer and a sheath layer from inner to outer; the external of each conductor is wrapped with the insulating layer; the insulating layer is formed by an insulating band wrapping the external of the conductor; the conductors wrapped with the insulating layer are twisted to form the cable; the insulating band is a radiation resistant insulating band; the external of the cable core is wrapped with the wrapping layer; the space between the conductors wrapped with the insulating layer and the wrapping layer is filled with stuffing; the wrapping layer is formed by cable-making wrapping belts in a tight wrapping manner; and the sheath is an embossing copper sheath. The invention discloses the high radiation dosage resistant cable and a manufacturing method therefor. The manufacturing method comprises the steps of 1) manufacturing the conductors; 2) manufacturing the insulating layer; 3) making the cable, and 4) embossing the copper sheath. The cable is quite high in the radiation resistance, and can be safely used in the high-radiation environment of nuclear power stations.

MicroRNA inhibitors as anti-cancer therapeutics are described. The microRNA inhibitors can inhibit microRNA-15a and can mimic the effects of higher dose radiation at lower doses. Other benefits are also described.