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WO/2011/119911A2 |
A method for estimating a parameter of interest of an earth formation having a fluid contained in pores of the earth formation, the method includes: conveying a carrier through a borehole penetrating the earth formation; irradiating the ...
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WO/2011/119318A2 |
Systems, methods, and devices for determining a porosity of a subterranean formation corrected for borehole effects are provided. One such device may be a downhole tool capable of being lowered into a borehole of a subterranean formation...
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WO/2011/115179A1 |
Provided are: a scintillator for neutron detection, which is highly sensitive to neutron beams and which produces little background noise assignable to γ-ray; and a neutron detector and a neutron imaging apparatus that are made using th...
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WO/2011/094596A2 |
An apparatus for irradiating an earth formation is disclosed. The apparatus includes: a carrier configured to be disposed in the formation; a neutron tube disposed at the carrier and located on an axis; and a high voltage power source di...
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WO/2011/083868A1 |
Provided is a pixel type two-dimensional image detector which reduces leakage of fluorescence to an area excluding an incident pixel as much as possible. The two-dimensional image neutron detector has the following structure. In a grid-l...
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WO/2011/079495A1 |
A fast neutron detection method, which is used to detect the fast neutrons associated with X-ray, includes: the fast neutrons are transmitted trough a neutron moderator (342) so that the X-ray is absorbed and the fast neutrons are modera...
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WO/2011/066292A1 |
Li-containing scintillator compositions, as well as related structures and methods are described. Radiation detection systems and methods are described which include a Cs2LiLn Halide scintillator composition.
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WO/2011/058424A1 |
A method of detecting neutron radiation is provided which includes placing a target material which produces alpha particles when exposed to neutron radiation in a container. The container is exposed to radiation and the alpha particles, ...
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WO/2011/051299A2 |
A detector (100) for detecting neutrons comprises a neutron reactive material (102) adapted to interact with neutrons to be detected and release ionizing radiation reaction products in relation to said interactions with neutrons. The det...
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WO/2011/044266A2 |
A radiation detection system can include a first material to produce a first light in response to receiving a target radiation. The radiation detection system can also include a second material to propagate a second light to a first end ...
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WO/2011/036282A1 |
The invention relates to a method for determining the isotope ratio of fissile material having a main isotope and at least one impurity isotope, characterized in that it includes the following steps: measuring (1) the net surface areas S...
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WO/2011/032743A1 |
Each pulse of a pulse sequence received from a neutron detector is set as a trigger pulse triggering a predefined gate, the multiplicity of pulses within this gate is determined, the pulse having triggered the gate is assigned to a multi...
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WO/2011/025853A1 |
Surfaces or surface portions incorporated into gas-filled neutron detectors are coated with and/or composed of at least partially, neutron reactive material. The surfaces may be flat or curved fins or plates, porous or filamentary materi...
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WO/2011/022663A1 |
A neutron detection system may include a volume of neutron moderating material, and a plurality of solid state neutron detection devices disposed within the volume of neutron moderating material, wherein some of the neutron detection dev...
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WO/2011/019437A1 |
The present invention includes an apparatus and method for neutron radiation detection. The apparatus comprises combining thin walled, boron-coated straw tubes with a plastic moderator material interspersed around the tubes. The method i...
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WO/2011/012154A1 |
The invention relates to an apparatus for detecting neutron radiation, preferably thermal neutrons, comprising at least one first section (102) with a high neutron absorption capability and at least one second section (101) with a low ne...
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WO/2011/012155A1 |
The invention refers to an apparatus for detecting neutron radiation, preferably thermal neutrons, comprising a gamma ray scintillator, said scintillator comprising an inorganic material with an attenuation length Lg of less than 10 cm, ...
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WO/2011/002906A1 |
The present invention provides an innovative solid-state neutron detector that exhibits superior neutron-sensitivities. One embodiment of the present invention includes a Gadolinium-oxide (Gd2O3)-based neutron detector that is highly sen...
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WO/2010/149661A1 |
The invention relates to a method for discriminating a gamma component and a neutron component in an electronic signal (S1) that is the result of detecting gamma and/or neutron radiation, characterised in that said method includes the fo...
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WO/2010/144227A2 |
A detection device includes a photon sensor and a scintillator device optically coupled to the photon sensor. The scintillator device includes a scintillator material having a first refractive index, a first refractive material in a firs...
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WO/2010/141125A2 |
A scintillator system is provided to detect the presence of fissile material and radioactive material. One or more neutron detectors include scintillator material, and are optically coupled to one or more wavelength shifting fiber optic ...
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WO/2010/126062A1 |
A neutron measurement device (1A) is configured by a neutron detection unit (10), a light detection unit (20) which detects scintillation light emitted from the neutron detection unit (10), a light guiding optical system (15) which guide...
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WO/2010/103049A1 |
The invention relates to a radiation detector (1), characterised in that said radiation detector comprises: an emitter (14) capable of emitting electrons in response to radiation; a collector (12; 121, 122) capable of collecting the elec...
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WO/2010/099346A2 |
A fabrication method is provided for making a high efficiency neutron detector using a scintillator medium coupled with fiber optic light guides. The light guides provide light pulses to photo sensor and thereby to high speed analog to d...
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WO/2010/099334A2 |
A scintillator system is provided to detect the presence of fissile material and radioactive material. One or more neutron detectors are based on 6LiF mixed in a binder medium with scintillator material, and are optically coupled to one ...
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WO/2010/099331A2 |
A system detects at least one of nuclear and fissile materials The system includes a plurality of high speed scintillator detectors Each high speed scintillator detector in the plurality of high speed scintillator detectors includes at l...
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WO/2010/091003A2 |
Sensor arrays arranged in a detection system provide high performance detection of the presence of fissile material and radioactive material in cargo containers and at moderate cost. One or more sensor arrays operate to detect gamma and/...
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WO/2010/087844A1 |
An apparatus (200) for detecting slow or thermal neutrons (160) including an alpha particle-detecting layer (240) that is a hydrogenated amorphous silicon p-i-n diode structure. The apparatus includes a bottom metal contact (220) and a t...
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WO/2010/076538A1 |
The invention relates to a method for measuring the neutron flux in the core of a nuclear reactor, said method including a plurality of steps recurrently performed at moments (TN) spaced out over a period (ΔT), the method including, at ...
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WO/2010/069909A1 |
The invention relates to a method for determining the spectral and spatial distribution of a braking photon flow along at least one direction in space (x, y, z), characterised in that the method comprises measuring the neutrons resulting...
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WO/2010/060089A2 |
A fiber-optic scintillator radiation detector includes a multitude of optical fibers that each include an optical core. The optical cores are spaced apart from one another by an interposer material. In various embodiments, the interposer...
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WO/2010/039298A9 |
A neutron detector includes a photo sensor with an electrical signal output electrically connected with an electrical signal input node of an electrical signal amplifier circuit. A resistive load is electrically connected between the ele...
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WO/2010/011859A2 |
Room temperature operating solid state hand held neutron detectors integrate one or more relatively thin layers of a high neutron interaction cross-section element or materials with semiconductor detectors. The high neutron interaction c...
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WO/2010/002727A2 |
Systems and methods for measuring neutron-induced activation gamma-rays in a subterranean formation are provided. In one example, a downhole tool for measuring neutron-induced activation gamma-rays may include a neutron source and a gamm...
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WO/2010/002875A1 |
A semiconductor device for detection of neutron particles includes a detector layer (110) and an array (50) of multiple detector cells. Each detector cell (100) is switchable between first and second electrical states. Sensitive nodes (1...
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WO/2009/157115A1 |
A neutron dosimeter enabling compensation of the output of a mixed gas detector which outputs a detection pulse signal the pulse height of which corresponds to the energy of a neutron in response to the detection of the neutron. The mixe...
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WO/2009/148590A2 |
The present invention relates to a creature-machine hybrid detector system capable of autonomously detecting illicit and hazardous materials. This hybrid detector comprises of an explosives detecting creature trained in the art of detect...
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WO/2009/142856A1 |
A neutron detector includes a pressure vessel, an electrically conductive field cage assembly within the pressure vessel and an imaging subsystem. A pressurized gas mixture of CF4, 3He and 4He at respective partial pressures is used. The...
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WO/2009/137985A1 |
A method for inspecting special nuclear material and a system for inspecting special nuclear material using the method are disclosed. The method includes that an object to be inspected (7) is inspected by utilizing both of the irradiatio...
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WO/2009/120817A2 |
A method for correcting data collected with a neutron emitting instrument, includes: obtaining characterization data for the instrument, the characterization data including inelastic background data of the instrument; and correcting the ...
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WO/2009/119378A1 |
Provided is a scintillator for neutron detection which has a high neutron ray-sensitivity and generates little background noises originating in γ-rays. A scintillator for neutron detection comprising metal fluoride crystals typified by ...
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WO/2009/107464A1 |
Provided is a nuclear material detection device capable of accurately detecting nuclear materials. The nuclear material detection device (10) detects the nuclear materials contained in an object (A) to be inspected. A neutron detection s...
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WO/2009/094825A1 |
A radioactive substance orientation detecting apparatus comprises at least a first ray detecting device (1); at least a second ray detecting device (3); each of at least the first ray detecting device (1) and each of at least the second ...
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WO/2009/089111A2 |
A system and method for a heterogeneous capture-gated neutron detector are disclosed. The system includes an organic hydrogenous scintillating layer (102) configured to emit at least one collision photon (114) when contacted with a neutr...
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WO/2009/083537A1 |
The invention relates to a fission-chamber count rate measurement device and to the associated fission-chamber calibration device. The count rate measurement device comprises : a measurement cell (1), which contains the fission chamber (...
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WO/2009/085367A2 |
An accelerator-based neutron tool is provided. The tool includes a deuterium- tritium gas mixture such that the tool outputs a desired ratio of 2.45 MeV and 14 MeV neutrons.
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WO/2009/086406A2 |
Neutron detectors including one or more gamma shields over memory dies and methods of making the neutron detectors are provided. The neutron detectors can contain two or more memory dies, neutron-reactant layers over the two or more memo...
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WO/2009/083536A1 |
The invention relates to a method of determining the effective masses of deposits of fissile material, characterized in that it comprises: A) a step (E1) for measuring the count rate of deposits of fissile material of known effective mas...
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WO/2009/073646A2 |
A well logging instrument includes a source of high energy neutrons (16) arranged to bombard a formation surrounding the instrument. A scintillator (32) sensitive to gamma radiation resulting from interaction of the high energy neutrons ...
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WO/2009/063078A2 |
An instrument for detecting radiation is provided, which comprises an inner core housing a neutron detector, and an outer core comprising a neutron-moderating material, the instrument further including at least one elongate thermal neutr...
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