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Wireless communication system for agricultural vehicles

A wireless communication system for agricultural vehicles, in which each vehicle has a global positioning system (GPS), a multi-channel transmitter/receiver module having a limited communication range, and a signal processor connected to the transmitter/receiver module. The transmitter is controlled by the signal processor to transmit on a predetermined communication channel a signal comprising a unique vehicle identifier and a signal indicating the current positional coordinates of the vehicle. The signal processor also analyzes the signals received from other vehicles within the communication range and determines from the identifier and the positional coordinates data when another vehicle is ready to perform a joint operation with the vehicle. Prior to initiation of a joint operation, the communication system is switched to a different communication channel.




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Seed meter control system

A seed meter control system is provided that allows for controlling seed meters of a row crop planter in a manner that reduces frequency of skip occurrences in which no seeds are delivered during a delivery event and double occurrences in which more than one seed is delivered during a delivery event. A target seeding session performance may be compared with an observed seeding session performance value and a delivery anomaly value to determine whether to make a corrective action by controlling at least one of the seed meters.




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Seed research plot planter and field layout system

A seed research plot planter includes a rotating seed plate for picking up and transporting seeds from a seed chamber to a release point, and a sensor that detects the rotational position of the seed plate. A distance measuring device measures a distance traveled by the planter. A controller uses a first signal from the sensor and a second signal from the distance measuring device to control a sequence of operations of the planter based on the rotational position of the seed plate and the location of the planter within the field. A field layout system is provided for creating a plot field layout having a desired number of ranges, a desired number of planter passes, and desired parameters for each plot within the field. The field layout system allows different plot lengths and seed populations to be input for individual plots within the same planter pass through the field.




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Product distribution system for farm implement

A method and system enables sectional control for an air seeding system of a farm implement by exposing a main header, or selected ports of the main header, to a purging air flow when product flow through the selected ports is stopped. A plenum of air is fluidly coupled to the main header and provides a purging air flow to any exit port of the main header that has been shut off from product flow. Valves are used to selectively flow couple the exit ports of the main header to the product flow and to the purging air flow.




stem

Seed delivery apparatus, systems, and methods

Referring to the drawings, wherein like reference numerals designate identical or corresponding parts throughout the several views, FIG. 1 illustrates a side elevation view of a single row unit (10) of a conventional row crop planter such as the type disclosed in U.S. Pat. No. 7,438,006, the disclosure of which is hereby incorporated herein in its entirety by reference. As is well known in the art, the row units (10) are mounted in spaced relation along the length of a transverse toolbar (12) by a parallel linkage (14), comprised of upper and lower parallel arms (16, 18) pivotally mounted at their forward ends to the transverse toolbar (12) and at their rearward end to the row unit frame (20).




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Control system mounting arrangement for an agricultural implement

An agricultural implement includes a storage tank, a pump positioned below a bottom portion of the storage tank, and a control system disposed above the bottom portion of the storage tank. The storage tank is configured to hold a flowable agricultural product. The pump is configured to direct the flowable agricultural product out of the storage tank. The one or more controls are configured to control application of the flowable agricultural product.




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Mound forming machine and seed planter system

A horticulture apparatus for preparing and seeding a strip of farmland with a tractor includes a front frame fixed with the tractor and including a horizontal tine support bar for holding a plurality of downwardly-projecting tines. The front frame includes a middle frame pivot mount and pivot angle adjustment mechanism. A middle frame is fixed with the middle frame pivot mount and is adapted to be raised or lowered. A longitudinal support bar is fixed with a drill planter roller assembly that includes two drill planter roller frames each supporting at least one adjustable drill planter roller. A U-shaped back frame has two forward arms each pivotally fixed with the middle frame and including a rear drill planter roller. A seed distributing mechanism for fixing with the tractor includes a hopper having an open top end and a bottom end that includes a seed distribution opening and a seed spreader.




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Seed singulator system

A seed singulator system for a seed planter may comprise a seed container including a housing defining an interior to hold seed. A seed pickup assembly may be configured to pick up seeds individually from the interior, and the pickup assembly defines a plurality of seed-retaining holes configured to hold seed when a vacuum is applied to the holes. A seed discharging assembly may be configured to discharge seed in a singular manner from the seed container. The seed discharge assembly may comprise a seed receiver structure configured to receive seeds from the seed pickup assembly, and may define a seed-receiving passage having an entry opening for a seed to pass through, with the seed-retaining holes being alignable with the entry opening. A seed ejecting structure may be configured to eject seeds one at a time from the seed pickup assembly into the entry opening of the seed receiver structure.




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Fluid delivery system for an agricultural implement

An agricultural implement is provided that includes a first tool bar and a second tool bar each supporting respective ground engaging tools and fluid dispersal components. The second tool bar is pivotally coupled to the first tool bar. The agricultural implement further includes fluid conduits coupled to respective tool bars for conveying fluid to the respective fluid dispersal components. Additionally, each of the conduits has a flexible end adjacent to the other tool bar. Furthermore, the agricultural implement includes a fluid joint coupled between the first and second flexible ends and configured to provide a sealed connection between the first and second flexible ends during relative pivotal movement of the first and second tool bars in operation but to allow for uncoupling of the first and second flexible ends for servicing of the implement.




stem

Growth tube microchip electrophoresis system for monitoring of aerosol composition

This technology is a method and apparatus for the semi-continuous measurement of the concentration of constituents of airborne particles which couples a laminar flow, water condensation particle collector to a microfluidic device for assay of particle chemical composition by electrophoresis. The technology has been used for the assay of sulfates, nitrates, chlorides, and organic acids contained in fine and submicrometer atmospheric particles. For these compounds the apparatus and method described is capable of one-minute time resolution at concentrations at the level of micrograms of analyte species per cubic meter of air. Extension to other analytes is possible.




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Electrode strip and sensor strip and manufacture method thereof and system thereof

The present disclosure relates to an electrode strip, a sensor strip, a system thereof and a manufacturing method thereof. The sensor strip includes a first reactive film, a second reactive film and a vent hole. The first reactive film includes a substrate, a first electrode layer and a first insulation layer. The first end of the first insulation layer is concaved to a first depth to form a first reactive area. The second reactive film includes a second electrode layer and a second insulation layer. The first end of the second insulation layer is concaved to a second depth to form a second reactive area. The vent hole penetrates the second insulation layer, the second electrode layer and the first insulation layer so as to connect the first reactive area and the second reactive area.




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Electrolytic systems and methods for making metal halides and refining metals

Disclosed are electrochemical cells and methods for producing a halide of a non-alkali metal and for electrorefining the halide. The systems typically involve an electrochemical cell having a cathode structure configured for dissolving a hydrogen halide that forms the halide into a molten salt of the halogen and an alkali metal. Typically a direct current voltage is applied across the cathode and an anode that is fabricated with the non-alkali metal such that the halide of the non-alkali metal is formed adjacent the anode. Electrorefining cells and methods involve applying a direct current voltage across the anode where the halide of the non-alkali metal is formed and the cathode where the non-alkali metal is electro-deposited. In a representative embodiment the halogen is chlorine, the alkali metal is lithium and the non-alkali metal is uranium.




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System and method for optimizing a cut location

A system for determining a cut location at a work surface includes a position sensor and a controller. The controller stores a final design plane of the work surface and determines an actual profile of the work surface. A plurality of target profiles extending along a path are determined, each corresponding to a cut location. The target profiles are based at least in part upon the cut location, a loading profile, slot parameters, and the actual profile of the work surface. The controller is further configured to determine a lowest cost target profile and the lowest cost target profile defines an optimized cut location. A method is also provided.




stem

Method and system for calculating and displaying work tool orientation and machine using same

A machine includes a plurality of ground engaging elements and an operator control station supported on a frame. A work tool is pivotably attached to the frame using a lift arm assembly and a tilt linkage. At least one device measures a quantity associated with at least one of the lift arm assembly, the tilt linkage, and the work tool. An electronic controller, in communication with an operator display and the at least one device. The electronic controller is configured to store an operator selected orientation of the work tool, calculate a current orientation of the work tool based on the quantity, and calculate a deviation of the current orientation from the operator selected orientation. A visual representation of the deviation is displayed on the operator display.




stem

Systems and methods for treating a ground surface

Some embodiments of a ground surface treatment system can include a flexible roller system having one or more of rollers arranged in a side-by-side position and include a flexible axle member extending through each row of rollers.




stem

System and method for controlling a rotation angle of a motor grader blade

The disclosure describes, in one aspect, a system and method for controlling a rotation angle of a blade of a motor grader having a front frame operatively coupled to a rear frame at a point defining an articulation angle between the front and rear frames. The control system includes at least one sensor operatively associated with the blade, at least one sensor operatively associated with a wheel, at least one sensor operatively associated with at least one of the front frame or the rear frame, and a controller operatively coupled to the at least one sensors. The controller is adapted to determine a current position of the blade, determine a wheel steering angle, determine an articulation angle, and control the rotation angle of the blade based in part on the wheel steering angle and the articulation angle.




stem

System for applying down pressure in a coulter assembly

A coulter assembly for an agricultural implement. The coulter assembly includes a support structure and a disc blade rotatably mounted to the support structure. The coulter assembly also includes a spring assembly coupled to the support structure and configured to urge the disc blade into soil. The spring assembly includes a variable rate spring.




stem

Steering control system for a towed axle

A trailer includes a chassis having a hitch, an axle having a pair of tractive elements rotatably coupled to the chassis, an actuator coupled to the chassis and positioned to steer the pair of tractive elements, and a processing circuit. The processing circuit has an input for receiving a transmission gear of a tractor vehicle and a variable output for engaging the actuator. The processing circuit is configured to control the steering of the pair of tractive elements according to a control strategy that varies based on the transmission gear of the tractor vehicle.




stem

Agricultural toolbar transport system

A toolbar transport system for extending and retracting a large agricultural toolbar. Forward and rearward folding segments of the toolbar allow the toolbar assembly to retract against the sides of the vehicle without interfering with the steering wheels. A forward-folding segment and rearward-folding segment of each lateral toolbar section connect to provide steering wheel clearance in the transfer position and an integrated lateral toolbar with regularly-spaced ground-engaging implements in the application position. Gauge wheel assemblies assist in the extension and deployment of the toolbar assembly.




stem

System and method for optimizing a cut location

A system for determining a cut location at a work surface includes a position sensor and a controller. The controller stores a desired operating parameter and a final design plane of the work surface and determines an actual profile of the work surface. The controller determines a plurality of target profiles corresponding to different cut locations. The target profiles are based at least in part upon the cut location, a loading profile, slot parameters, and the actual profile of the work surface. The controller further determines an optimized target profile relative to the desired operating parameter and the optimized target profile defines an optimized cut location.




stem

Brake control system and method for motor vehicles

A brake control system and method for motor vehicles is provided with an electronic control unit, by which, when the motor vehicle is stationary, a parking brake function can be activated manually or automatically. Its deactivation occurs upon reaching a predefined release condition. In the presence of a release condition the brake pressure, which was built up for the parking brake function, is released in a time offset manner at least in relation to the axles of the vehicle by way of the control unit.




stem

Electrically operated turf stacking system for sod harvesting machine

The present invention extends to a stacking mechanism having electrical actuators for stacking slabs of sod on a sod harvesting machine. The electrical actuators allow the stacking head to be driven in three axes. The stacking mechanism also includes position feedback sensors for reporting the position of the stacking head to enable precision when operating the stacking head at a fast rate. The stacking mechanism of the present invention also provides temporary pallet support wings to enable the continued stacking of slabs of sod on one pallet even while another pallet is being dropped from the sod harvesting machine.




stem

Control system for a machine

A control system for a machine is disclosed. The system includes a ripper sensor associated with a ripper of the machine configured to generate a signal indicative of a position of the ripper. The system includes a steering command sensor associated with a steering control module of the machine. The steering command sensor is configured to generate a signal indicative of a steering command of the machine. The system further includes a controller configured to receive the signals indicative of the position of the ripper and the steering command of the machine. The controller is configured to execute an action based on the engaged state of the ripper and the steering command of the machine.




stem

Vertical tillage system

A vertical tilling implement to be pulled behind and agricultural vehicle having a number of gangs of fluted-concave disc blades, rolling baskets, and wheels connected to a main frame. As the vertical tilling implement is pulled, the fluted-concave disc blades move the soil in a direction lateral to the side of the blades as well as up. Meanwhile, the rolling bars aid in leveling the seedbed and crushing the remaining large pieces of soil. The vertical tilling implement reduces the amount of subsoil compaction and cuts through heavy residue making it ideal for use in the fall or in the spring.




stem

Drive system having ongoing pull-slip learning

A drive system for a mobile machine is disclosed. The drive system may have a travel speed sensor, at least one traction device speed sensor, and a controller in communication with the travel speed sensor and the at least one traction device speed sensor. The controller may be configured to determine a slip value associated with a traction device of the mobile machine based on signals generated by the travel speed sensor and the at least one traction device speed sensor, and determine a torque output value of the mobile machine. The control may also be configured to make a comparison of the slip value and the torque output value with a pull-slip curve stored in memory, and selectively update the pull-slip curve based on the comparison.




stem

Light emitting device and lighting system with the same

A light emitting device including a light emitting structure having a first conduction type semiconductor layer, an active layer, and a second conduction type semiconductor layer, a transparent conductive layer disposed on the light emitting structure, a metal filter having an irregular pattern disposed between the light emitting structure and the transparent conductive layer, and openings disposed between the irregular patterns in the metal filter.




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Vehicle collision damage mitigation system

A vehicle collision damage mitigation system includes: a vehicle having a crashable zone on a front side of a dash panel in a vehicle longitudinal direction; a body airbag device that inflates a body airbag that is provided on a front surface of the dash panel by a pressure of gas generated by a gas generating device; a detector that detects whether a mode of a frontal collision of the vehicle is a full-overlap collision or another collision; and a control unit that operates the gas generating device when detecting a collision other than the full-overlap collision on the basis of a detection result of the detector and that does not operate the gas generating device when detecting the full-overlap collision.




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Releasable binding systems

A releasable water ski binding system includes a trigger mechanism that causes releasable bindings to release a boot from a ski. The trigger mechanism senses a displacement of a portion of a body of a skier past a point of criticality and causes the releasable bindings to release the boot from the ski.




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Four-wheel independent suspension system for an electric wheelchair

A four-wheel independent suspension system for an electric wheelchair includes a chassis, two front wheels each fixed to a front rod respectively, and two rear wheels each fixed to a rear rod respectively. The chassis includes a rail extending in a width direction of the chassis, each of the front and rear rods has one end connected to a square first connecting sleeve, in the first connecting sleeve is disposed a first shock absorber which includes a rectangular outer pipe, and a rectangular inner pipe disposed in and rotated degrees with respect to the outer pipe, the edges of the inner pipe are abutted against the inner surface of the outer pipe, between each of the edges of the inner pipe and the inner space of the outer pipe is disposed an elastic rubber, the inner pipe of each of the first shock absorbers is sleeved on the rail.




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Control arrangement for a hydropneumatic suspension system and hydropneumatic suspension system comprising such a control arrangement

A control arrangement for a hydropneumatic suspension system and a hydropneumatic suspension system are provided. The control arrangement has a pressure supply connection, a return connection, a piston chamber connection adapted to be connected to the piston chamber of a suspension cylinder of the hydropneumatic suspension system, an annular chamber connection adapted to be connected to the annular chamber of the suspension cylinder, and at least one controllable valve arrangement comprising a plurality of switch positions via which the pressure supply connection and the return connection are connectable to the piston chamber connection and the annular chamber connection. The annular chamber connection is in flow connection with the return connection via a pressure-limiting line having a hydraulically controllable pressure-limiting element. The pressure-limiting element has a control input adapted to be acted upon via a control line by a control pressure which is limitable to a predefinable pressure limit.




stem

Bicycle suspension system

An embodiment of the invention includes a three-component rear-wheel suspension system for interconnecting to a bicycle frame and a shock absorbing device. The three components are an upper stay pivotally attached to the frame, a lower stay having a rear wheel mount and pivotally connected to the upper stay at a location generally above the rear wheel mount, and a link pivotally connected to the frame at a location below where the upper stay is attached to the frame and pivotally coupled to the lower stay. The general arrangement of the linkages between the three components permit compression of the suspension system (i.e. relative upward movement of the rear wheel) with limited chainstay lengthening.




stem

Convertible ski systems having toe binding mounts and associated quick-release locking mechanisms

A ski system includes a ski, a heel binding provided on an upper surface of the ski, a toe binding mount provided on the upper surface of the ski forward of the heel binding, a toe binding releasably mounted to the toe binding mount, and a quick-release locking mechanism for locking the toe binding to the toe binding mount. The quick-release locking mechanism is configured for release by hand.




stem

Steering wheel mounted aspirated airbag system

Aspirator for an airbag deploying into a vehicle passenger compartment in order to protect a driver of the vehicle during an accident, includes a housing having an innermost and an outermost wall and defining an outlet at a distal end leading to an airbag and coaxial flow passages between the innermost and outermost walls into which air from a passenger compartment flows to inflate the airbag. An aspiration system is coupled to the housing and configured to direct gas into the flow passages to mix with the air from the passenger compartment in the flow passages. The aspiration system includes openings on an inner side of the outermost wall and on an outer side of the innermost wall. These openings are configured such that the gas is directed therefrom into the flow passages in a direction substantially parallel to a flow direction of air into the flow passages.




stem

Driver seat airbag system

A driver seat airbag system includes: an airbag that is housed in a pad section of a steering wheel, receives a supply of gas for inflation during a collision of a vehicle, and is inflated and deployed between the steering wheel and an occupant in a driver seat; and an inflator that generates the gas. The airbag includes an auxiliary inflated section that is inflated to a front of the vehicle in conjunction with inflation and deployment of the airbag, so as to enter a space between a rim and a spoke of the steering wheel.




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Methods and systems for improved drilling operations using real-time and historical drilling data

Methods and systems are described for improved drilling operations through the use of real-time drilling data to predict bit wear, lithology, pore pressure, a rotating friction coefficient, permeability, and cost in real-time and to adjust drilling parameters in real-time based on the predictions. The real-time lithology prediction is made by processing the real-time drilling data through a multilayer neural network. The real-time bit wear prediction is made by using the real-time drilling data to predict a bit efficiency factor and to detect changes in the bit efficiency factor over time. These predictions may be used to adjust drilling parameters in the drilling operation in real-time, subject to override by the operator. The methods and systems may also include determining various downhole hydraulics parameters and a rotary friction factor. Historical data may be used in combination with real-time data to provide expert system assistance and to identify safety concerns.




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Systems and methods for processing drilling data

Systems and methods for processing drilling data. One embodiment provides a method comprising building user-designed contexts (which can be designated as built-in contexts) for drilling structures. The method also comprises orchestrating module execution within the user-designed contexts. The method further comprises providing data from the user-designed contexts to such modules via an interface. Some methods include monitoring drilling data to detect events (for instance departure from a pseudolog) and orchestrating module execution responsive thereto. The method can include exposing the orchestration of the execution of the module instances as a service. Moreover, some embodiments provide extra-contextual application program interfaces. In addition, or in the alternative, some embodiments schedule the orchestration of the modules based on declarations related to the inputs and/or outputs of the modules.




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Remote control system for drill

Mobile drilling devices and systems, methods, and computer-readable media for controlling such devices are provided. One method includes receiving user input from a user of a mobile computing device. The method further includes transmitting data based on the user input from the mobile computing device to a control circuit of a mobile drilling device via a wireless network connection. The method further includes generating a plurality of control signals based on the data received from the mobile computing device. Each of the plurality of control signals is configured to control movement of a separate one of a plurality of movement devices of the mobile drilling device. The plurality of movement devices are configured to move the mobile drilling device between locations.




stem

Control system for high power laser drilling workover and completion unit

A control and monitoring system controls and monitors a high power laser system for performing high power laser operations. The control and monitoring system is configured to perform high power laser operation on, and in, remote and difficult to access locations.




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Cooled-fluid systems and methods for pulsed-electric drilling

In at least some embodiments, a pulsed-electric drilling system includes a bit that extends a borehole by detaching formation material with pulses of electric current, and a drillstring that defines at least one path for a fluid flow to the bit to flush detached formation material from the borehole. A feed pipe transports at least a part of said fluid flow to said path, and the feed pipe is equipped with a cooling mechanism to cool the fluid flow. The use of a cooled fluid flow may enhance the performance of the pulsed-electric drilling process.




stem

Universal drilling and completion system

Methods and apparatus are described to drill and complete wellbores. Such wellbores include extended reach horizontal wellbores, for example in shales, deep subsea extended reach wellbores, and multilateral wellbores. Specifically, the invention provides simple threaded subassemblies that are added to existing threaded tubular drilling and completion equipment which are used to dramatically increase the lateral reach using that existing on-site equipment. These subassemblies extract power from downward flowing clean mud, or other fluids, in an annulus to provide additional force or torque on tubular elements within the wellbore, while maintaining circulation, to extend the lateral reach of the drilling equipment and completion equipment. These added elements include combinations of The Leaky Seal™, a Cross-Over, The Force Sub™ and The Torque Sub™. The use of such additional simple elements allow lighter drilling equipment to be used to reach a given lateral distance, therefore reducing drilling costs.




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Method and system for delineating a second wellbore from a first wellbore

Disclosed herein is a method of delineating a second wellbore from a first wellbore. The method includes, emitting acoustic waves from a tool in the first wellbore, receiving acoustic waves at the tool reflected from the second wellbore, and determining orientation and distance of at least a portion of the second wellbore relative to the tool.




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Method and system for monitoring a well for unwanted formation fluid influx

A method of monitoring a well for unwanted formation fluid influx is disclosed. Measurements of well outflow are acquired during a period in which drilling operations are performed for the well. Occurrences of stagnant flow events during the period are determined. An outflow signature is generated from the well outflow measurements for each stagnant flow event. The outflow signatures are displayed sequentially in time of occurrence. Each outflow signature is analyzed for an anomaly.




stem

Optical object detection system

A method and apparatus for detecting an object. A first optical signal having a first frequency is transmitted to a location on a surface of a ground. A second optical signal having a second frequency is transmitted to the location on the surface of the ground such that the first optical signal and the second optical signal overlap each other at the location on the surface of the ground. The overlap of the first optical signal and the second optical signal at the location generates a third optical signal having a difference frequency that is a difference between the first frequency and the second frequency. The third optical signal is configured to travel into the ground. A response to the third optical signal is detected. A determination is made as to whether an object is present in the ground using the response to the third optical signal.




stem

Eye tracking system and related methods

A tracking system for tracking an eye including a light source projecting light toward a display surface in a sequential pattern, one or more reflectors associated with an optical device, where the one or more reflectors reflect the pulses of light from the display source, one or more photo detectors, where the photo detectors detect reflected pulses of light from the light source, and a system that measures pulse timing relative to horizontal and vertical pattern to compute a gaze angle of the eye.




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Spatially-aware radiation probe system and method

A spatially-aware radiation probe system/method allowing for detection and correction of radiation readings based on the position and/or movement of a radiation detector is disclosed. The system incorporates a radiation detector combined with a spatially-aware sensor to permit detection of spatial context parameters associated with the radiation detector and/or object being probed. This spatial context information is then used by analysis software to modify the detected radiation values and/or instruct the radiation probe operator as to appropriate measurement activity to ensure accurate radiation measurements. The spatially-aware sensor may include but is not limited to: distance sensors to determine the distance between the radiation detector and the object being monitored; accelerometers integrated within the radiation detector to detect movement of the radiation detector; and/or axial orientation sensors to determine the axial orientation of the radiation detector.




stem

Surface contamination monitoring system and method

A surface contamination monitoring system/method configured to correct the detected the radioactive net count rate (NCR) value of a whole-body surface contamination monitoring device based on monitored subject height and thickness is disclosed. The system includes a height detection means for determining the height of a monitored subject and a thickness detection means for determining the thickness of at least a portion of the monitored subject. The net count rate (NCR) is corrected based on the determined height and thickness of the monitored subject as applied to site calibration factor data and self-shielding factor data to produce a corrected net count rate (CNR). If the corrected net count rate (CNR) registers above a preset alarm threshold, the monitored subject is considered contaminated and an appropriate alarm is registered.




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Two-dimensional detection system for neutron radiation in the field of neutron scattering spectrometry

This invention relates to a two-dimensional detection system for neutron radiation comprising a means (1) for emitting a neutron beam (10), a support means (2) adapted for receiving a sample (3), a photoemission means (5) adapted for being activated by a neutron radiation, a cooled low light level charge-coupled detection device (7). The emission means (1) emits a monochromatic neutron beam (10). The system further comprises a filter means (4), the filter means (4) being located between the support means (2) and the photoemission means (5) and being adapted for trapping at least a substantial part of the monochromatic neutron beam transmitted (12) by the sample (3), and an amplification means (6) located upstream the charge-coupled detection device (7) and coupled with the charge-coupled detection device (7).




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System and method of ion neutralization with multiple-zoned plasma flood gun

An apparatus comprises a plasma flood gun for neutralizing a positive charge buildup on a semiconductor wafer during a process of ion implantation using an ion beam. The plasma flood gun comprises more than two arc chambers, wherein each arc chamber is configured to generate and release electrons into the ion beam in a respective zone adjacent to the semiconductor wafer.




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Airflow-organization testing method for a clean room and system using the same method

An airflow-organization testing method for a clean room and a system using the same method are disclosed. The airflow-organization testing method for a clean room uses a thermal imaging device to detect a sample gas-flow formed by a sample gas in the clean room, and the sample gas has a temperature difference from ambient air. The airflow-organization testing system for a clean room includes a sample gas supplier and a thermal imaging device, and the thermal imaging device can continuously detect a spatial position of the sample gas and display it on a display, thereby improving detection precision and expanding detection range.




stem

Detection apparatus configured to detect soft X-ray radiation and detection system configured to detect soft X-ray radiation

A detection apparatus configured to detect soft X-ray radiation, includes a conversion unit and a circuit unit disposed on a semiconductor substrate. The conversion unit has a plurality of conversion elements that convert the soft X-ray radiation incident on the semiconductor substrate into electric charge. The circuit unit has an amplifier transistor that amplifies and outputs a signal supplied from the conversion unit. A shielding unit is disposed above the circuit unit. The shielding unit blocks the soft X-ray radiation incident on the circuit unit. Preferably, the soft X-ray shielding coefficient of a material that forms the shielding unit is higher than the soft X-ray shielding coefficient of each of aluminum and copper. Alternatively, a material that forms the shielding unit has an atomic number higher than or equal to 70.