An elastic rim lock without screws for eyeglasses operating as hinge and temple is described, comprising: a spring, a first front frame part, a second front frame part and a cut, the spring being tensioned between a head of the wire and a surface of a first seat of the second front frame part separated by the cut, the rim lock further comprising a wire, a first segment of the wire passing through the spring, the first seat, a second seat of the second front frame part and a seat of the first front frame part, while a second segment of the wire is in permanent contact with a surface of the first front frame part and has the function of defining the length of the first segment, a section of the wire being configured for being a temple or a temple core.

A radiation detection element includes a plurality of pixel electrodes, each pixel electrodes including a first electrode placed on the first surface of an insulating member and having an opening portion and a second electrode placed at the opening portion of the first electrode. The plurality of pixel electrodes is arrayed in the row direction and the column direction. The pitch of the pixel electrodes in the row direction and the column direction is 380 ?m or less. An area ratio between the first electrode and the second electrode falls within the range of 14.5:1 to 154.6:1.

Resistive plate electrode (110, 120; 210, 220; 310, 320) with modulable surface resistivity comprising a supporting plate (130; 230; 330) coupled to a layer (131; 231; 331) of polymer material on which a DLC layer (135; 235; 335) is deposited that is connected to a connection assembly (145, 245, 345) configured to be connected to a high voltage power supply.

A gas detector fabrication method is provided. The method includes: fabricating a signal readout plate: fabricating metal readout electrodes on an upper end surface of a lower insulating layer, and covering upper end surfaces of the metal readout electrodes with an upper insulating layer; pressing the signal readout plate and performing surface processing: pressing the signal readout plate on a substrate, and making a side, distant from the substrate, of the upper insulating layer to be a plane; fabricating a resistive anode electrode: fabricating a resistive layer on an upper end surface of the signal readout plate, and fixing a low-resistance electrode ring to a periphery of an upper end surface of the resistive layer; and fabricating a detector amplification assembly: fixing a support frame to an upper end of the low-resistance electrode ring, and fixing a micro-grid electrode to an upper end of the support frame.

A detector (100) comprises an upstream ionization chamber (110), a downstream detector chamber (120) and a signal processor (160). The ionization chamber (110) comprises a first electrode (111), a second electrode (112) and an ionization chamber gas (114). The detector chamber (120) comprises a converter unit (130) adapted to convert incident radiation (6) into electrons (8), an electron amplification device (140) adapted to produce further electrons (9) from the electrons (8), a read-out device (150) adapted to generate a signal representative of the incident radiation (6) and a detector chamber gas (121). The signal processor (160) is adapted to generate a corrected signal by processing the signal representative of the incident radiation (6) based on a current signal representative of an ionization current measured between the first electrode (111) and the second electrode (112) and induced by the incident radiation (6).

A method for calibrating an ionizing radiation detector, with the aim of determining a correction factor in order to establish an amplitude-energy correspondence. The invention first relates to a method for calibrating a device for detecting ionizing radiation, the detector comprising a semiconductor or scintillator detection material capable of generating a signal S of amplitude A upon interaction between ionizing radiation and the detection material, the method including the determination of a weighting factor at the amplitude A.

A radiation detection element includes a plurality of pixel electrodes, each pixel electrodes including a first electrode placed on the first surface of an insulating member and having an opening portion and a second electrode placed at the opening portion of the first electrode. The plurality of pixel electrodes is arrayed in the row direction and the column direction. The pitch of the pixel electrodes in the row direction and the column direction is 380 ?m or less. An area ratio between the first electrode and the second electrode falls within the range of 14.5:1 to 154.6:1.

A nuclear medicine examination apparatus is a nuclear medicine examination apparatus incorporating a Compton camera using gas amplification. The Compton camera has a chamber in which a gas is sealed. The nuclear medicine examination apparatus includes sensors that output signals each representing a gas state in the chamber and a controller that controls the gas state in the chamber on the basis of output signals from the sensors.

A radiation detection element includes a base material, a first electrode, a second electrode, a third electrode, a fourth electrode, a fifth electrode, a first external terminal, a second external terminal, a third external terminal, and a fourth external terminal. Each of the first external terminal, the second external terminal, the third external terminal, and the fourth external terminal is a solder ball, and the first external terminal, the second external terminal, the third external terminal, and the fourth external terminal are insulated from each other. A region provided on the first electrode, the second electrode, the third electrode, the fourth electrode, and the fifth electrode overlaps at least one of the first external terminal, the second external terminal, the third external terminal, and the fourth external terminal in a view vertical to the first surface side of the base material.

A radiation detection device includes a sensor having a first electrode and a second electrode. The first and second electrode each defines a plurality of fingers comprising a nanotube material, and the fingers of each electrode are interdigitated with one another. A voltage source may be configured to apply a voltage across the first and second electrodes. A chamber contains the sensor with a gas, one or more walls of the chamber enabling passage of radiation external to the chamber. A detection circuit detects radiation within the chamber based on a change in current across the first and second electrodes resulting from ionization of the gas by the radiation.