Abstract:
The invention relates to a detector (6) for detecting radiation, especially x-ray radiation used in a computed tomography system. The detector comprises a direct conversion material(9) for converting radiation into electrons and holes, which are used for generating an electrical detection signal. The direct conversion material is illuminated with illumination light being broadband visible and/or broadband infrared light for reducing, in particular, eliminating, a polarization of the direct conversion material, which may occur when being traversed by the radiation to be detected and which may reduce the detection performance. By reducing the polarization of the direct conversion material the detection performance can be improved.
Abstract:
The present invention is directed towards a moisture resistant radiation detector core assembly which was constructed by first assembling the photon-electron conversion layer, integrated circuit and the connection elements between and then encapsulating the whole assembly. This provides improved moisture barrier properties, since the encapsulation also covers the connection elements and does not have to be opened to apply the electrical connections, as is done for known radiation detector core assemblies.
Abstract:
The invention provides for a method and an apparatus (300) for positioning an ultrasound patch on a surface of a subject. The apparatus includes a first fixing unit (210) and a second fixing unit (310) adapted to be fixed to a surface of the subject at a first location and second location, respectively, with a space of exposed surface of the subject between them. The apparatus further comprises a holding unit (260) for positioning on the exposed surface of the subject within the space between the fixing units, the holding unit being adapted to receive the ultrasound patch.The holding unit is adapted to be coupled with the first and second fixing units at the surface of the subject and, when the holding unit is coupled to the first fixing unit and the second fixing unit, the position of the holding unit is adjustable relative to the first fixing unit and the second fixing unit.
Abstract:
The present invention relates to an ECG electrode connector (1) and an ECG cable. To eliminate a trunk cable of a conventional ECG cable arrangement, the ECG electrode connector (1) is configured for mechanically and electrically connecting an ECG electrode with a lead wire. It comprises a connection arrangement (10) for mechanically connecting the ECG electrode connector (1) with an ECG electrode (100), a lead wire terminal (14) for connection with a signal line (301) of a lead wire (300), a shield terminal (15) for connection with a shield (302) of the lead wire (300), an electrode contact (17) for contacting an electrical contact (101) of the ECG electrode (100), a voltage clamping element (13) coupled between the lead wire terminal (14) and the shield terminal (15), and a resistor (16) coupled between the lead wire terminal (14) and the electrode contact (17).
Abstract:
The present invention relates to a direct conversion radiation detector for wherein the direct conversion material comprises a garnet with a composition of Z 3 (A1 x Ga y )O 12 :Ce, wherein Z is Lu, Gd, Y, Tb or combinations thereof and wherein y is equal to or greater than x; and preferably Z comprises Gd. Suitable garnets directly convert radiation, such as x-rays or gamma-rays, into electronic signals. Preferably photoluminescence of the garnet is low or absent. The detector is particularly suitable for use in x-ray imaging devices, such as computed tomography. In some embodiments photoluminescence of garnets might be used to construct a hybrid direct-indirect conversion detector, which may be particularly suitable for use with Time-of-Flight PET.
Abstract translation:本发明涉及一种直接转换辐射检测器,其中直接转化材料包含具有Z3(Al x Ga y)O 12:Ce组成的石榴石,其中Z是Lu,Gd,Y,Tb或其组合,其中y等于 或大于x; 并且优选Z包括Gd。 合适的石榴石将辐射(例如x射线或γ射线)直接转换为电子信号。 石榴石的光致发光优选低或不存在。 检测器特别适用于X射线成像设备,如计算机断层摄影。 在一些实施方案中,石榴石的光致发光可以用于构建混合直接 - 间接转换检测器,其可以特别适用于飞行时间PET。
Abstract:
The invention provides a light emitting semi conductor device comprising a zinc magnesium oxide based layer as active layer, wherein the zinc magnesium oxide based layer comprises an aluminum doped zinc magnesium oxide layer having the nominal composition Zn-xMgxO with1-350 ppm Al, wherein x is in the range of 0
Abstract:
The invention provides an ultrasound patch (710) comprising a first array group (720) comprising a primary transducer array (730) having a first orientation and a second array group (740) comprising at least two secondary transducer arrays (750) each having an orientation different from the first orientation. The second array group is arranged such that the at least two secondary transducer arrays are located at either side of the primary transducer array. The first array group or the second array group may be used to capture preliminary ultrasound data for positioning the ultrasound patch. The primary transducer array and the at least two secondary transducer arrays may comprise CMUTs, and the ultrasound patch may comprise a flip chip connection. Also disclosed are a system and a method for positioning the ultrasound patch on a surface of a subject.
Abstract:
The present invention relates to an ECG cable for connection with an ECG monitor. To achieve a miniaturization of the ECG cable and omitting the conventionally used trunk cable and trunk cable connector, the ECG cable comprises a core (2), a resistive wire cable (3a-3h) comprising a plurality of resistive wires (31-37) wound around the core and isolated with respect to each other, and two or more flexible lead wires (4), each connected to a respective resistive wire at its one end (40) and to an electrode (5) at its other end (41).
Abstract:
A system (100) includes a photon counting detector array (116) including a direct conversion material (118) and a plurality of detector pixels (120) affixed thereto, and a split signal corrector (126) that corrects the output of the plurality of detector pixels for split signals. A method includes receiving an output signal of each of a plurality of detector pixels affixed to a direction conversion material of photon counting detector array, and correcting the output of the plurality of detector pixels for split signals. A computer readable storage medium encoded with computer readable instructions, which, when executed by a processer, cause the processor to: receive an output signal of each of a plurality of detector pixels affixed to a direction conversion material of photon counting detector array, and correct the output of the plurality of detector pixels for split signals
Abstract:
An apparatus (and method) is for monitoring blood perfusion. A plurality of photoplethysmography, PPG, signals are acquired indicative of light detected in a region of interest of tissue at a plurality of respective locations within the region. The PPG signals are processed to determine an amplitude and preferably also a phase of each of the plurality of PPG signals, and a blood perfusion level is determined at the region of interest based on the amplitudes and preferably also the phases of the PPG signals.