Abstract:
An ion source (400) is cooled using a cooling plate (412) that is separate and independent of the anode (408). The coolin plate (412) forms a coolant cavity (414) through which a fluid coolant (e.g., liquid or gas) can flow to cool the anode. In such configurations, a magnet may be thermally protected by the cooling plate. A thermally conductive material in a thermal transfer interface component can enhance the cooling capacity of the cooling plate. Combining these structures into an anode subassembly and magnet subassembly can also facilitate assembly and maintenance of the ion source.
Abstract:
According to the invention, sensors which require a high voltage supply and require little current at least for temporary periods are supplied by an blocking oscillator with a high degree of efficiency. The efficiency of said blocking oscillator is due to the low inverse current of the rectifier, the blockage recovery time being short at the same time, the low consumption of the controlling system, and economical and therefore inexpensive voltage measurement. In particular, batteries with an especially long life can be used.
Abstract:
The invention relates to a detector plate consisting of a carrier plate, especially an injection-moulded carrier plate, having a plurality of detector elements for detecting ionizing radiation. The detector elements function according to the principle of a Geiger-Müller counter. The invention suggests that, to simplify the production process and to save cost, the anode and/or the cathode should be in the form of a metallization on the carrier plate of the detector plate, said metallization(s) not being present in a single plane only. This offers multiple options for designing the interior used as ionization chamber and for arranging the electrodes in this space. The options for contact with additional printed circuit boards also turn out to be highly advantageous. This further has an advantageous effect on the production process and on the qualities of the radiation measurement devices using detector plates of this kind.
Abstract:
The present invention provides a method for manufacturing radiation detectors such as Geiger-Müller detectors. The method includes pre-forming a frit ring via extrusion or stamping. The preformed frit ring is placed in the aperture of a metal cathode body along with a radiation transparent window made of mica. The window is slightly larger than the perimeter of the aperture, thereby forming an overlap area. The frit ring is placed between the cathode and window within this overlap area. The assembled components are then fired at an appropriate temperature to cause fusion of the frit with the metal cathode and window to form a gas-tight seal.
Abstract:
An ultraviolet detector comprises a metal tubular member which hermetically encloses an anode and a cathode therein and is filled with a discharged gas introduced therein from a metal exhaust tube. After the anode and the cathode are enclosed within the tubular member, the ultraviolet detector can be made without being subjected to any glass fusing process. Accordingly, the inside of the sealed vessel V1 can be prevented from being contaminated with fluorine, whereby the ultraviolet detector with stable characteristics can be provided.
Abstract:
A substantially stable, substantially portable open window gas flow Geiger-Mueller type detector which is capable of monitoring ionizing radiation is described as well as a method for monitoring ionizing radiation.