Abstract: A method for determining position and energy in scintillation detectors includes determining a photoconversion energy and a photoconversion position of particles triggering scintillation events, in an iteration-free manner, calculated from a distribution of scintillation light released by one or more of the scintillation events. The distribution of scintillation light is scanned by a photodetector.

Abstract: A method for determining position and energy in scintillation detectors includes determining a photoconversion energy and a photoconversion position of particles triggering scintillation events, in an iteration-free manner, calculated from a distribution of scintillation light released by one or more of the scintillation events. The distribution of scintillation light is scanned by a photodetector.

Abstract: A dipole antenna array includes at least two dipole antenna elements. Each respective dipole antenna element has at one end a fold which consists of a bend, a bent region, and the projection of the bent region of the dipole antenna element onto a length of the dipole antenna element. Each respective dipole antenna element at least partially encloses a cavity.

Abstract: A sensor chip includes a plurality of microcells to which an xy position is assigned, composed of a photodiode Dn,m, a current divider Sq,nm, with outputs Sq,v,nm, for the y direction and outputs Sq,h,nm for the x direction, the outputs Sq,h,nm being equipped with a quenching apparatus Rq,h,nm for quenching the current, and the outputs Sq,v,nm being equipped with a quenching apparatus Rq,v,nm for quenching the current, which divides the generated photocurrent of the diodes Dn,m into two equally large fractions. The microcells are arranged in a sequence of N columns in the x direction xn,=x1, x2, x3, . . . xn with n=1, 2, 3, . . . N and M rows in the y direction ym,=y1, y2, y3, . . . ym with m=1, 2, 3, . . . M. Outputs Sq,h,nm of the current dividers Sq,nm for the x direction are connected to the read-out channels ChA and ChB for the x direction.

Abstract: An SiPM sensor chip includes pixels consisting of microcells Z, each pixel being associated with an xy position x1, x2, x3, . . . , xN or y1, y2, y3, . . . yM. A plurality of pixels form a block, and the microcells are connected to output channels for a linear coding.

Abstract: A SiPM sensor chip with a plurality of pixels includes a photodiode; a quench resistor; and a current divider configured to divide the photocurrent of the photodiodes into two currents of equal size. The current divider Sq,nm or Snm lead to networks NS,h,n and NS,V,m, each of which leads to additional current dividers Sh,n and Sv m having coding resistors Rh,A,n and Rh,B,n, and Rv,c,m and Rv D m, which are linearly coded and which lead to output channels A, B, C, D, with these sensor features being integrated into the sensor chip. The networks Ns,h,n and/or NSiVlm each lead to a summation network Oh and/or Ov, in which the signals of the networks Ns,h,n and/or NS,v,m are merged via summation resistors Rs,h,n and Rs,v,m, respectively, and lead to the output channels E and/or F.

Abstract: A method for photosensor signal processing includes carrying out, by measuring a combination of readout channels of a direction e with linearly increasing and linearly decreasing signal strength, a linear coding in at least one e-direction. The linearly increasing and linearly decreasing signal strengths of readout channels of the direction e, which are respectively used for the linear coding, are multiplied by each other. The linear coding satisfies the following edge condition: Q1(e)=c1·ec2+c3, Q2(e)=c4·ec5+c6, c1=const. ?(0, ?), c4=const. ?(??, 0), c3, c6=const. ?(??, ?), and 0.5<c2; c5<1.5. Q1 denotes the charge of the output channel signal strengths increasing via the e-position, and Q2 denotes the charge of the output channel signal strengths decreasing via the e-position and the coding direction.

Abstract: A method for photosensor signal processing includes carrying out, by measuring a combination of readout channels of a direction e with linearly increasing and linearly decreasing signal strength, a linear coding in at least one e-direction. The linearly increasing and linearly decreasing signal strengths of readout channels of the direction e, which are respectively used for the linear coding, are multiplied by each other. The linear coding satisfies the following edge condition: Q1(e)=c1·ec2+c3, Q2(e)=c4·ec5+c6, c1=const.?(0, ?), c4=const.?(??, 0), c3, c6=const.?(??, ?), and 0.5<c2?; c5<1.5. Q1 denotes the charge of the output channel signal strengths increasing via the e-position, and Q2 denotes the charge of the output channel signal strengths decreasing via the e-position and the coding direction.

Abstract: An SiPM sensor chip includes pixels consisting of microcells Z, each pixel being associated with an xy position x1, x2, x3, . . . , xN or y1, y2, y3, . . . yM. A plurality of pixels form a block, and the microcells are connected to output channels for a linear coding.

Abstract: A SiPM sensor chip with a plurality of pixels includes a photodiode; a quench resistor; and a current divider configured to divide the photocurrent of the photodiodes into two currents of equal size. The current divider Sq,nm or Snm lead to networks NS,h,n and NS,V,m, each of which leads to additional current dividers Sh,n and Sv m having coding resistors Rh,A,n and Rh,B,n, and Rv,c,m and Rv D m, which are linearly coded and which lead to output channels A, B, C, D, with these sensor features being integrated into the sensor chip. The networks Ns,h,n and/or NSiVlm each lead to a summation network Oh and/or Ov, in which the signals of the networks Ns,h,n and/or NS,v,m are merged via summation resistors Rs,h,n and Rs,v,m, respectively, and lead to the output channels E and/or F.

Abstract: The GAMMA/RF compact, hybrid and integrated system for PET-SPECT/MR simultaneous imaging of the invention comprises a GAMMA/RF device that integrates an RF coil, of the type used in conventional MR systems, with GAMMA radiation detector modules of the type used in PET or SPECT systems, so that combined PET or SPECT and MR images are obtained.

Abstract: The invention relates to a portable mini gamma camera for intrasurgical use. The inventive camera is based on scintillation crystals and comprises a stand-alone device, i.e. all of the necessary systems have been integrated next to the sensor head and no other system is required. The camera can be hot-swapped to any computer using different types of interface, such as to meet medical grade specifications. The camera can be self-powered, can save energy and enables software and firmware to be updated from the Internet and images to be formed in real time. Any gamma ray detector based on continuous scintillation crystals can be provided with a system for focusing the scintillation light emitted by the gamma ray in order to improve spatial resolution. The invention also relates to novel methods for locating radiation-emitting objects and for measuring physical variables, based on radioactive and laser emission pointers.

Abstract: The GAMMA/RF compact, hybrid and integrated system for PET-SPECT/MR simultaneous imaging of the invention comprises a GAMMA/RF device that integrates an RF coil, of the type used in conventional MR systems, with GAMMA radiation detector modules of the type used in PET or SPECT systems, so that combined PET or SPECT and MR images are obtained.

Abstract: The invention relates to a portable mini gamma camera for intrasurgical use. The inventive camera is based on scintillation crystals and comprises a stand-alone device, i.e. all of the necessary systems have been integrated next to the sensor head and no other system is required. The camera can be hot-swapped to any computer using different types of interface, such as to meet medical grade specifications. The camera can be self-powered, can save energy and enables software and firmware to be updated from the Internet and images to be formed in real time. Any gamma ray detector based on continuous scintillation crystals can be provided with a system for focusing the scintillation light emitted by the gamma ray in order to improve spatial resolution. The invention also relates to novel methods for locating radiation-emitting objects and for measuring physical variables, based on radioactive and laser emission pointers.