Class / Patent application number | Description | Number of patent applications / Date published |
250261000 | With detector or detector circuit control | 10 |
20080265151 | Method and system for stabilizing gain of a photomultipler used with a radiation detector - A method for controlling voltage applied to a photomultiplier used in a scintillation counter radiation detector includes determining numbers of voltage pulses having each of a plurality of predetermined amplitudes generated by the photomultiplier in response to radiation events being imparted to a scintillation detector. The numbers of voltage pulses at each of the predetermined amplitudes is conducted to a trained artificial neural network. The artificial neural network generates a signal corresponding to an amount of adjustment to the voltage applied to the photomultiplier. | 10-30-2008 |
20100025574 | COMPENSATED MINERALOGY TOOL AND PROCESSING - A method for estimating information about a formation, the method including obtaining a first set of radiation data substantially influenced by the formation and non-formation materials; obtaining a second set of radiation data substantially influenced by the non-formation materials; and correcting the first set of radiation data with the second set of radiation data to provide corrected formation radiation data. | 02-04-2010 |
20100059668 | Scintillator material and radiation detectors containing same - A sintered, annealed scintillator composition, which, prior to annealing, has a formula of A | 03-11-2010 |
20140084149 | USE OF SPECTRAL INFORMATION TO EXTEND TEMPERATURE RANGE OF GAMMA-RAY DETECTOR - A method is for detecting gamma rays using a gamma ray detector, and includes determining a first count of gamma rays having an energy in a first energy interval, using a controller coupled to the gamma ray detector. A second count of gamma rays having an energy in a second energy interval is determined, the second energy interval having a higher energy than the first energy interval, using the controller. A third count of gamma rays having an energy in a third energy interval is determined, the third energy interval having a higher energy than the second energy interval, using the controller. The second count of gamma rays is compensated for noise based upon a ratio of the second count and the third count, using the controller. | 03-27-2014 |
20140145072 | System And Method For Gain Regulation - Disclosed herein is a system for fast gain regulation in a gamma-ray spectroscopy instrument. The system includes a detector configured to generate a signal indicative of energy arriving at the detector, and a processor configured to determine one or more system performance indicators. The system also includes a controller configured to compute a first gain correction term based on one of more system performance indicators and change the device gain based on the computed first gain correction tem. | 05-29-2014 |
20150014521 | Reducing Disturbance During Fiber Optic Sensing - Reducing disturbance during fiber optic sensing. An in-well fiber optic sensing system includes a device insulated to be disturbance-resistant. The device is in a fiber optic communication path between a source and a target configured to be received in a well. The device is configured to receive a parameter sensing signal transmitted from the source to the target and produce a reference signal. The fiber optic sensing system includes a signal interrogation system connected to the device in the fiber optic communication path. The signal interrogation system is configured to receive the reference signal from the device and to receive a response signal from the target in response to the parameter sensing signal. The response signal represents the parameter of interest. The signal interrogation system is configured to determine the parameter of interest based, in part, on the reference signal and the response signal. | 01-15-2015 |
20150362599 | GAMMA PROBE HEALTH DETECTION ASSEMBLY - An improved gamma controller health detection assembly to facilitate reliable downhole measurement of naturally occurring radiation is disclosed. The gamma controller assembly includes one or more gamma sensors, a micro-controller, memory, and input/output ports among other components. The gamma sensors detect radiation and output pulses that are received by the microcontroller. The sensor data can be checked, selected, and averaged by the microcontroller, and sent uphole to another microcontroller or computer that can then further process, communicate, and display the data. The sensor data can be averaged and stored to memory or stored as independent values to memory. The gamma controller health detection assembly can be configured to run algorithms that detect if one or more gamma sensors appear to be malfunctioning or have previously malfunctioned. | 12-17-2015 |
20160047941 | GAMMA RAY MEASUREMENT QUALITY CONTROL - Methods and apparatus for obtaining neutron population data of a subterranean formation with a downhole tool proximate the subterranean formation in a wellbore extending from a wellsite surface to the formation, wherein surface equipment is located at the wellsite surface. At least one of the downhole tool and the surface equipment is operated to generate a sigma log, determine moment data from the generated sigma log, determine a real quality control factor based on the determined moment data, and determine a theoretical quality control factor based on the generated sigma log. Comparing the determined real and theoretical quality control factors may then be utilized to assess accuracy of the generated sigma log. | 02-18-2016 |
20160091614 | RADIOACTIVE WASTE SCREENING SYSTEMS, AND RELATED METHODS - A radioactive waste screening system comprising at least one subsystem, at least one computer assembly operatively associated with and configured to receive measurement data from the at least one subsystem, and control logic in communication with the at least one computer assembly. The at least one subsystem is selected from the group consisting of a packaged waste screening subsystem, a volume waste screening subsystem, a subsurface waste characterization subsystem, and a surface waste characterization subsystem. The control logic is configured to verify the operability of the at least one subsystem, to control the at least one subsystem, and to assess the radioactivity of at least one material at least partially based on the measurement data received by the at least one computer assembly. A method of assessing a potentially radioactive material, and a method of determining the radioactivity of a material are also described. | 03-31-2016 |
20160124111 | SCINTILLATOR INCLUDING AN ELPASOLITE SCINTILLATOR COMPOUND AND APPARATUS INCLUDING THE SCINTILLATOR - A scintillator can include an elpasolite scintillator compound. The scintillator can be doped with a Group 2 element, and may also include an activator. The scintillator has an improved core valence luminescence at room temperature as compared to a corresponding elpasolite scintillator compound without the Group 2 dopant. The elpasolite scintillator compound can have significant core valance luminescence at a temperature higher than 125° C. In a particular embodiment, the elpasolite scintillator compound can include Cl and may or may not also include another halide, such as Br or I. The scintillator can be part of an apparatus that detects gamma radiation and neutrons and may allow a relatively simpler pulse discrimination technique to be used to a higher temperature, such as 125° C. to 150° C. before a relatively more complex pulse discrimination technique would be used. | 05-05-2016 |