654 results about "Dose rate" patented technology

A method and system is disclosed which is capable of delivering at a high dose rate, respirable solid aerosols derived from aqueous- or nonaqueous-based solutions containing the desired therapeutic agent(s). The method and system comprises the integration of an aerosol generator, an aerosol evaporator, an aerosol concentrator, and an aerosol flow regulator. The aerosol generator generates 10-30 μm droplets, with a narrow size distribution. The aerosol jet is arrested by a coaxial counter-flow heated air jet, and evaporated rapidly by annular swirling heated air. Most of the air, together with the unwanted solvent vapor, is removed from the aerosol stream during the process of aerosol concentration. The output aerosol carries the dry particles to be inhaled by the patient. The respiratory-governed control of aerosol fluid generation system delivers fluid containing the test agent of interest (drug or toxin) to the aerosol generator throughout inhalation.

Provided is a particle beam irradiation apparatus capable of highly reliable measurement of a dose of each beam and capable of highly sensitive measurement of a leakage dose caused by momentary beam emission. The particle beam irradiation apparatus according to the present invention includes: an emission control portion that controls emission and termination of a particle beam; a control portion that sequentially changes an irradiation position of the particle beam relative to an affected area; first and second dosimeters that measure dose rates of the particle beam directed to the affected area; and an abnormality determination portion that accumulates the dose rates output from the first and second dosimeters for each of predetermined determination periods to calculate first and second sectional dose measurement values and that performs second abnormality determination of determining that there is an abnormality and outputs an interlock signal for terminating the emission of the particle beam in at least one of a case in which the first sectional dose measurement value exceeds a predetermined first reference range and a case in which the second sectional dose measurement value exceeds a predetermined second reference range.

Various aspects of the invention provide improved approaches and methods for efficiently: Vaporizing decaborane and other heat-sensitive materials via a novel vaporizer and vapor delivery system; Delivering a controlled, low-pressure drop flow of vapors, e.g. decaborane, into the ion source; Ionizing the decaborane into a large fraction of B10Hx+; Preventing thermal dissociation of decaborane; Limiting charge-exchange and low energy electron-induced fragmentation of B10Hx+; Operating the ion source without an arc plasma, which can improve the emittance properties and the purity of the beam; Operating the ion source without use of a strong applied magnetic field, which can improve the emittance properties of the beam; Using a novel approach to produce electron impact ionizations without the use of an arc discharge, by incorporation of an externally generated, broad directional electron beam which is aligned to pass through the ionization chamber to a thermally isolated beam dump; Providing production-worthy dosage rates of boron dopant at the wafer; Providing a hardware design that enables use also with other dopants, especially using novel hydride, dimer-containing, and indium- or antimony-containing temperature-sensitive starting materials, to further enhance the economics of use and production worthiness of the novel source design and in many cases, reducing the presence of contaminants; Matching the ion optics requirements of the installed base of ion implanters in the field; Eliminating the ion source as a source of transition metals contamination, by using an external and preferably remote cathode and providing an ionization chamber and extraction aperture fabricated of non-contaminating material, e.g. graphite, silicon carbide or aluminum; Enabling retrofit of the new ion source into the ion source design space of existing Bernas source-based ion implanters and the like or otherwise enabling compatibility with other ion source designs; Using a control system in retrofit installations that enables retention of the installed operator interface and control techniques with which operators are already familiar; Enabling convenient handling and replenishment of the solid within the vaporizer without substantial down-time of the implanter; Providing internal adjustment and control techniques that enable, with a single design, matching the dimensions and intensity of the zone in which ionization occurs to the beam line of the implanter and the requirement of the process at hand; Providing novel approaches, starting materials and conditions of operation that enable the making of future generations of semiconductor devices and especially CMOS source / drains and extensions, and doping of silicon gates.

The invention discloses a double-mode rapidly-passing type moving target radiation detection system which comprises a radiation source, a collimator, a sensor unit, a control module, a radiation detector and a radiation imaging device. The radiation source is used for emitting rays with different dosage rates, the sensor unit is used for identifying the type of moving targets and monitoring the positions of the moving targets in a detection channel, and the control module is used for controlling the radiation source to emit the rays in preset working modes according o the types and the positions of the moving targets; the preset working modes correspond to the types of the moving targets, the rays emitted by the radiation source in the different working modes are different in dosage rates. The invention further discloses a double-mode rapidly-passing type moving target radiation detection method. By means of the double-mode rapidly-passing type moving target radiation detection system and method, radiation detection can be carried out on the whole moving targets such as vehicles.

Drug delivery device comprising expelling means allowing a user to set a dose corresponding to a number of increments from an initial state, an indication member adapted to rotate in a first direction corresponding to the set dose, and rotate in an opposed second direction corresponding to an expelled dose, the indication member having an initial rotational position corresponding to both the initial state and the fully expelled dose state. Sensor means having an incremental counter synchronized with the rotational position of the indication member and having a reference point corresponding to the initial rotational position of the indication member. After detecting an error state the sensor means is adapted to re-synchronize by detecting the number of rotational increments for a set dose and for a subsequent expelled dose. If the numbers are identical the reference point is reset corresponding to the current rotational position of the indication member.