摘要:
A phosphor admixture includes a phosphor powder and a number of radiation capture electron emitters. The emitters are dispersed within the phosphor powder. A phosphor screen includes phosphor particles, radiation capture electron emitters and a binder. The emitters and phosphor particles are dispersed within the binder. An imaging assembly includes a phosphor screen configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the phosphor screen. The electronic device is configured to receive the optical signals from the phosphor screen and to generate an imaging signal.
摘要:
An adaptable imaging assembly is provided. The adaptable imaging assembly includes a free-standing phosphor film configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the free-standing phosphor film. The electronic device is configured to receive the optical signals from the free-standing phosphor film and to generate an imaging signal. A free-standing phosphor film is also provided and includes x-ray phosphor particles dispersed in a silicone binder. A method for inspecting a component is also provided and includes exposing the component and a free-standing phosphor film to radiation, generating corresponding optical signals with the free standing phosphor film, receiving the optical signals with an electronic device coupled to the free-standing phosphor film and generating an imaging signal using the electronic device.
摘要:
An adaptable imaging assembly is provided. The adaptable imaging assembly includes a free-standing phosphor film configured to receive incident radiation and to emit corresponding optical signals. An electronic device is coupled to the free-standing phosphor film. The electronic device is configured to receive the optical signals from the free-standing phosphor film and to generate an imaging signal. A free-standing phosphor film is also provided and includes x-ray phosphor particles dispersed in a silicone binder. A method for inspecting a component is also provided and includes exposing the component and a free-standing phosphor film to radiation, generating corresponding optical signals with the free standing phosphor film, receiving the optical signals with an electronic device coupled to the free-standing phosphor film and generating an imaging signal using the electronic device.
摘要:
Scintillator compositions are described. They include a matrix material containing at least one lanthanide halide and at least one alkali metal. The compositions also include an activator for the matrix, which can be based on cerium, praseodymium, or a mixture of cerium and praseodymium. Radiation detectors which include the scintillators are disclosed. A method for detecting high-energy radiation with a radiation detector is also described.
摘要:
Scintillator materials based on certain types of halide-lanthanide matrix materials are described. In one embodiment, the matrix material contains a mixture of lanthanide halides, i.e., a solid solution of at least two of the halides, such as lanthanum chloride and lanthanum bromide. In another embodiment, the matrix material is based on lanthanum iodide alone, which must be substantially free of lanthanum oxyiodide. The scintillator materials, which can be in monocrystalline or polycrystalline form, also include an activator for the matrix material, e.g., cerium. To further improve the stopping power and the scintillating efficiency of these halide scintillators, the addition of bismuth is disclosed. Radiation detectors that use the scintillators are also described, as are related methods for detecting high-energy radiation.
摘要:
A scintillator composition comprising a garnet represented by (M1-x-yNxAy)3(Al5-a-bCaDb)O12, where M comprises yttrium, or terbium, or gadolinium, or holmium, or erbium, or thulium, or ytterbium, or lutetium, or combinations thereof, where N comprises additives including a lanthanide, or an alkali metal, or an alkaline earth metal, or combinations thereof, where A comprises a suitable activator ion including cerium, or europium, or praseodymium, or terbium, or ytterbium, or combinations thereof, where C or D comprises lithium, or magnesium, or gallium, or an element from group IIIa, or IVa, or Va, or IIId transition metal, or IVd transition metal, or combinations thereof, where x ranges from about 0 to about 0.90, y ranges from about 0.0005 to about 0.30, and a sum of a and b ranges from about 0 to 2.0.
摘要翻译:一种闪烁体组合物,其包含由(M 1-xy x N y O 3)3(Al 2 O 3)表示的石榴石, 其中M包括钇或铽或钆,或者钆或铽,或 钬或铒,ium或镱,镥或其组合,其中N包括包括镧系元素或碱金属或碱土金属或其组合的添加剂,其中A包括合适的活化剂离子包括铈 或铕或镨或铽或镱或其组合,其中C或D包含锂或镁或镓,或IIIa或IVa或Va,IIId族过渡金属或IVd的元素 过渡金属或其组合,其中x为约0至约0.90,y为约0.0005至约0.30,并且a和b之和的范围为约0至2.0。
摘要:
An energy sensitive detector is provided. The detector comprises an array of detector elements, wherein the detector elements comprises a first scintillator configured to emit photons within a first wavelength range when stimulated by X-rays, a second scintillator configured to emit photons within a second wavelength range when stimulated by X-rays, and a photo-detecting component configured to generate a first signal and a second signal, wherein the first signal and second signals are substantially linear functions of the number of photons emitted within the first and second wavelength ranges.
摘要:
An LED lamp including an LED and one or more phosphors, wherein for each phosphor, a figure of merit (FOM) defined as the product of (incident LED flux)×(excitation cross-section of the phosphor)×(phosphor material decay time) is less than 0.3. Such an arrangement provides a light emitting device with improved lumen output and color stability over a range of drive currents.
摘要:
A method of making a cubic halide scintillator material includes pressing a powder mixture of cubic halide and at least one activator under conditions of pressure, temperature, residence time and particle size effective to provide a polycrystalline sintered cubic halide scintillator having a pulse height resolution of from about 7% to about 20%. The conditions include a temperature ranging from about ambient temperature up to about 90% of the melting point of the cubic halide, a pressure of from about 30,000 psi to about 200,000 psi, a pressing residence time of from about 5 minutes to about 120 minutes and an average cubic halide particle size of from about 60 micrometers to about 275 micrometers.
摘要:
A scintillator composition is described, including a matrix material and an activator. The matrix material includes at least one alkali metal or thallium; at least one alkaline earth metal or lead; and at least one halide compound. The activator is usually cerium, praseodymium, or mixtures thereof. Radiation detectors which include the scintillator composition are also described. Methods for detecting high-energy radiation also form part of this disclosure.