Patent classifications
G01T1/208
METHOD FOR DIGITALIZING SCINTILLATION PULSE
A method for digitalizing a scintillation pulse may include: S1, acquiring a pulse database outputted by a detector irradiated by rays of different energy; S2, sampling and 5 quantizing each of pulses in the pulse database obtained in S1 to acquire complete energy information comprised in the pulse; S3, undersampling and quantizing each of the pulses in the pulse database obtained in step S1, and estimating or fitting energy information by using pulse prior information; S4, with the energy information obtained in S2 as a standard, determining a mapping relationship between 10 the energy information obtained by a prior information-based undersampling pulse energy acquisition method and the energy information obtained by the method of S2; and S5 correcting the energy information obtained by the prior information-based undersampling pulse energy acquisition method by using the energy mapping relationship obtained in S4.
X-ray device and manufacturing method thereof
An X-ray device, including a sensor panel and a flexible scintillator structure disposed on the sensor panel, is provided. A manufacturing method of the X-ray device is also provided.
X-ray device and manufacturing method thereof
An X-ray device, including a sensor panel and a flexible scintillator structure disposed on the sensor panel, is provided. A manufacturing method of the X-ray device is also provided.
SiPM-based radiation detection systems and methods
Techniques are disclosed for systems and methods using silicon photomultiplier (SiPM) based radiation detectors to detect radiation in an environment. An SiPM-based radiation detection system may include a number of detector assemblies, each including at least one scintillator providing light to a corresponding SiPM in response to ionizing radiation entering the scintillator. The radiation detection system may include a logic device and a number of other electronic modules to facilitate reporting, calibration, and other processes. The logic device may be adapted to process detection signals from the SiPMs to implement different types of radiation detection procedures. The logic device may also be adapted to use a communication module to report detected radiation to an indicator, a display, and/or a user interface.
SiPM-based radiation detection systems and methods
Techniques are disclosed for systems and methods using silicon photomultiplier (SiPM) based radiation detectors to detect radiation in an environment. An SiPM-based radiation detection system may include a number of detector assemblies, each including at least one scintillator providing light to a corresponding SiPM in response to ionizing radiation entering the scintillator. The radiation detection system may include a logic device and a number of other electronic modules to facilitate reporting, calibration, and other processes. The logic device may be adapted to process detection signals from the SiPMs to implement different types of radiation detection procedures. The logic device may also be adapted to use a communication module to report detected radiation to an indicator, a display, and/or a user interface.
Methods for PET detector afterglow management
Disclosed herein are methods and devices for the acquisition of positron emission (or PET) data in the presence of ionizing radiation that causes afterglow of PET detectors. In one variation, the method comprises adjusting a coincidence trigger threshold of the PET detectors during a therapy session. In one variation, the method comprises adjusting a gain factor used in positron emission data acquisition (e.g., a gain factor used to multiply and/or shift the output(s) of a PET detector(s)) during a therapy session. In some variations, a method for acquiring positron emission data during a radiation therapy session comprises suspending communication between the PET detectors and a signal processor of a controller for a predetermined period of time after a radiation pulse has been emitted by the linac.
Methods for PET detector afterglow management
Disclosed herein are methods and devices for the acquisition of positron emission (or PET) data in the presence of ionizing radiation that causes afterglow of PET detectors. In one variation, the method comprises adjusting a coincidence trigger threshold of the PET detectors during a therapy session. In one variation, the method comprises adjusting a gain factor used in positron emission data acquisition (e.g., a gain factor used to multiply and/or shift the output(s) of a PET detector(s)) during a therapy session. In some variations, a method for acquiring positron emission data during a radiation therapy session comprises suspending communication between the PET detectors and a signal processor of a controller for a predetermined period of time after a radiation pulse has been emitted by the linac.
X-ray device
An X-ray device is provided, which includes a flexible substrate, a driver integrated circuit, and a scintillator layer. The flexible substrate includes an array portion and an extension portion. The driver integrated circuit is disposed on the flexible substrate. The scintillator layer is disposed on the flexible substrate.
X-ray device
An X-ray device is provided, which includes a flexible substrate, a driver integrated circuit, and a scintillator layer. The flexible substrate includes an array portion and an extension portion. The driver integrated circuit is disposed on the flexible substrate. The scintillator layer is disposed on the flexible substrate.
Systems and methods for in-situ calibration of scintillation spectrometer
A radiation spectrometer includes a scintillator, a photomultiplier, and one or more light-emitting diodes (LEDs). The scintillator receives radiation from the environment and emits light that is indicative of an energy of the radiation. The photomultiplier receives the light and outputs an electrical signal that is in turn indicative of the energy of the radiation. Spectral data can be generated based upon the electrical signal, wherein the spectral data indicates a number of radiation events in each of several energy bins. The one or more LEDs can emit LED light through the scintillator and toward the photomultiplier, wherein the LED light causes an LED peak in the spectral data that can be used to identify an absolute energy of radiation events in the spectral data.