摘要:
There is provided a glass substrate (15) for electronic amplification having through holes (14) formed on a plate-like glass member (11) and used for causing an electron avalanche in the through holes (14), wherein a shape of the glass substrate (15) for electronic amplification and a material of the glass member (11) are determined so that an insulation resistance in a plate thickness direction per plane of 100 cm 2 is 10 7 to 10 11 Ω.
摘要:
Systems and devices are provided that relate to a gas-filled radiation detector with an internal optical fiber (50). The internal optical fiber (50) may detect photons (59) emitted during ionization avalanche events triggered by incident radiation. Such a radiation detector may include a housing, a fill gas (48) within the housing, and an optical fiber (50)within the housing. The fill gas may interact with radiation through an ionization avalanche that produces light. The optical fiber (50) within the housing may capture the light and transmit the light out of the housing.
摘要:
A plasma panel based ionizing-particle radiation detector includes a first substrate and a second substrate coupled to the first substrate by a hermetic seal. The second substrate is an ultra-thin substrate. The detector further includes a discharge gas between the first and second substrate and at least one second electrode electrically coupled to a first electrode and defining at least one pixel with the first electrode. The second electrode is coupled to the first substrate and a first impedance is coupled to the first electrode. The detector further includes a power supply coupled to at least the first or second electrode and a first discharge event detector circuitry is coupled to at least one of the first or second electrodes for detecting a gas discharge counting event in the electrode. The detector further includes a plurality of pixels, each pixel capable of outputting a gas discharge pulse upon interaction with ionizing-radiation. Each gas discharge pulse is counted by the detector as having approximately an equal value and circuitry detects if a gas discharge pulse is output from the pixels, and counts each gas discharge pulse as an individual event.
摘要:
The invention relates to a device (1) and a method for monitoring the contamination of a user by a radioactive element emitting beta radiation, wherein said device includes a user-passage gantry (2) provided with at least two proportional-counter gas-circulation panels (12) capable of detecting the beta radiation emitted substantially over the height of the user oppositely positioned. The gas circuits of the panels are connected in series, each panel (12) of the proportional counter including a frame (21) in the form of a gas-retention parallelepiped tank defining a cathode, at least five parallel anodes (25) evenly arranged across said frame, a sheet (26) of a conducting polymer entirely attached by bonding means (28) on the entire upper edge of said tank, and a conduction metal protection grid (29) of said panel attached and electrically connected to the frame so as to sandwich said sheet. The gas supply circuit of both panels includes a gas supply valve (16) and a control means (18) for opening/shutting said valve and adapted so as to supply the panels with gas at a predetermined rate.
摘要:
The invention is related to ionizing radiation measuring devices, and it can be used for detection and identification of ionizing radiation indoor and outdoor The aim of the present invention is multipurpose, small-sized, ergonomic device development, allowing to determine and measure ionizing radiation, and also to maintain and subsequently represent the obtained data for processing. The set problem is solved by that the ionizing radiation detector is used as the sensing unit, connected with microcontroller by means of a converter, the device in addition contains nonvolatile memory for data arrangement and command set, and the interface for connection with computer. The set problem is solved also by that the measurements are carried out constantly, records are made periodically by the user setting, and in case of value current or accumulated established criterion level excess the device gives alert signal and stores current value, not waiting for periodic write time, and at connection with a computer these data are automatically transferred in computer and processed for identification and saving. There are also other differences from the prototype. The invention positive result is inexpensive device development, available for any user, at that it is functional as it works in automatic mode and ensures, if necessary, the Internet-service that allows untrained user to gain the qualified knowledge.
摘要:
Electrodes for detecting the position of an incident particle are formed by a global position detection electrode for detecting the global position of the incident particle and a plurality of local position detection electrodes for detecting the local position of the incident particle. The position of the incident particle is identified from the global position information detected by the global position detection electrode and the local position information detected by the local position detection electrodes. A plurality of local position detection electrodes are divided into a plurality of groups and local position detection electrodes belonging to each group are connected to a common signal line. A predetermined number of local position detection electrodes correspond to one global position and the predetermined number of local position detection electrodes corresponding to one global position belong to different groups.
摘要:
Die Ratemeteranordnung (3) eines Strahlungsmeßgerätes zur Messung einer ionisierenden Strahlung (1) enthält neben einer Torschaltung (6) und einer Zähleranordnung (12) zur Messung der Impulsrate der von einer Strahlunsdetektoranordnung (2) unter der Einwirkung der ionisierenden Strahlung erzeugten Zählimpulse und neben einem Mittelwertspeicher (8) zur Speicherung des Mittelwertes (Rm) der gemessenen Impulsrate zusätzlich eine Rechenanordnung (15) und eine Ablaufsteueranordnung (10). Mittels der Ablaufsteueranordnung (10) und der Rechenanordnung (15) wird der Mittelwert (Rm) im Mittelwertspeicher (8) laufend so erneuert, daß er geringe Schwankungen seines Wertes aufweist. Die Anzeige einer von dem Mittelwertspeicher (8) gespeiste Anzeigeanordnung (4) weist somit ebenfalls geringe Schwankungen auf.