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公开(公告)号:US5741435A
公开(公告)日:1998-04-21
申请号:US512555
申请日:1995-08-08
IPC分类号: G11C11/14 , H01F1/00 , H01F1/03 , B41B27/10 , G11C11/414 , H01L21/8229 , H01L21/8239
CPC分类号: B82Y25/00 , G11C11/14 , H01F1/0063 , H01F1/0306 , Y10S428/90 , Y10T428/12465 , Y10T428/12951
摘要: A static magnetic memory includes a layer having a plurality of vertically oriented and shape-anisotropic elongated ferromagnetic particles. A plurality of writing conductors are adjacent the layer, and the conductors selectively apply magnetic fields to selected regions of the layer by directing electrical current to magnetize the particles in an up or down direction. Static reading means detect the direction of magnetization. The particles may include a soft magnet portion and a hard magnet portion. In another preferred embodiment, a material and a method of making same includes providing a matrix full of elongated holes, depositing a first magnetic material having a first coercivity into the holes, and then depositing a second magnetic material having a second coercivity into the holes to form a composite elongated particle in each hole.
摘要翻译: 静磁存储器包括具有多个垂直取向和形状各向异性的细长铁磁颗粒的层。 多个写入导体与层相邻,并且导体通过引导电流在上或下方向上磁化颗粒而选择性地将磁场施加到层的选定区域。 静态读数意味着检测磁化方向。 颗粒可以包括软磁体部分和硬磁体部分。 在另一优选实施例中,材料及其制造方法包括提供充满细长孔的矩阵,将具有第一矫顽力的第一磁性材料沉积到孔中,然后将具有第二矫顽力的第二磁性材料沉积到孔中 在每个孔中形成复合细长颗粒。
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公开(公告)号:US5989406A
公开(公告)日:1999-11-23
申请号:US953019
申请日:1997-10-17
CPC分类号: B82Y25/00 , G11C11/14 , H01F1/0063 , H01F1/0306 , Y10S428/90 , Y10T428/12465 , Y10T428/12951
摘要: A magnetically shape-anisotropic material is made by providing a matrix with a plurality of elongated holes, and depositing first and second magnetic materials in each hole so as to form elongated particles including the first material adjacent one end and the second material adjacent the opposite end. One of the materials is a magnetically soft material having relatively low coercivity whereas the other material is a magnetically hard material having relatively high coercivity. The particles have dimensions transverse to their axes of elongation smaller than the magnetic domain size of the magnetically soft material.
摘要翻译: 磁性形状各向异性材料通过提供具有多个细长孔的矩阵而制成,并且在每个孔中沉积第一和第二磁性材料,以便形成细长的颗粒,其包括邻近一端的第一材料和邻近相对端的第二材料 。 其中一种材料是具有较低矫顽力的磁软材料,而另一种材料是具有较高矫顽力的磁性硬质材料。 颗粒具有横向于其伸长轴线的尺寸小于磁性软材料的磁畴尺寸。
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公开(公告)号:US6045677A
公开(公告)日:2000-04-04
申请号:US807469
申请日:1997-02-27
CPC分类号: H01J9/125 , C25D11/02 , H01J43/246 , C25D11/04 , C25D11/045
摘要: A microchannel plate and method of manufacturing same is provided. The microchannel plate includes a plate consisting of an anodized material and a plurality of channels which are formed during the anodization of the material and extend between the two sides of the plate. Electrodes are also disposed on each side of the plate for generating an electrical field within the channels. Preferably, the material is alumina and the channels are activated such that the channel walls are conductive and highly secondary emissive.
摘要翻译: 提供了一种微通道板及其制造方法。 微通道板包括由阳极氧化材料和在该材料的阳极氧化期间形成并在板的两侧之间延伸的多个通道组成的板。 电极也设置在板的每一侧上,用于在通道内产生电场。 优选地,材料是氧化铝,并且通道被激活,使得通道壁是导电的和高度二次发射的。
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公开(公告)号:US5997713A
公开(公告)日:1999-12-07
申请号:US74712
申请日:1998-05-08
IPC分类号: H01J9/12 , B81B1/00 , B81C1/00 , C25F3/12 , H01J9/02 , H01J43/24 , H01L21/3063 , C25D5/34 , C25D5/48 , C25D9/06
CPC分类号: H01J43/246 , B81B1/004 , B81C1/00166 , B81C1/00595 , C25F3/12 , H01J9/02 , H01L21/3063 , B81C2201/0114 , Y10S977/888
摘要: An element with elongated, high aspect ratio channels such as microchannel plate is fabricated by electrochemical etching of a p-type silicon element in a electrolyte to form channels extending through the element. The electrolyte may be an aqueous electrolyte. For use as a microchannel plate, the; the silicon surfaces of the channels can be converted to insulating silicon dioxide, and a dynode material with a high electron emissivity can be deposited onto the insulating surfaces of the channels. New dynode materials are also disclosed.
摘要翻译: 通过电解质中的p型硅元件的电化学蚀刻来制造具有细长的高纵横比通道的元件,例如微通道板,以形成延伸穿过该元件的通道。 电解质可以是水性电解质。 用作微通道板, 通道的硅表面可以转化为绝缘二氧化硅,并且具有高电子发射率的倍增极材料可以沉积到通道的绝缘表面上。 还公开了新的倍增极材料。
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公开(公告)号:US06384519B1
公开(公告)日:2002-05-07
申请号:US08960759
申请日:1997-10-30
IPC分类号: H01J4320
CPC分类号: H01J43/246 , H01J43/22
摘要: A microdynode electron multiplier provides numerous microchannels extending parallel to one another through a layered structure incorporating insulating spacer layers and dynode layers which either incorporate a conductive electrode layer or are contiguous with a conductive electrode layer. The dynode layers include materials with high electron emissivity. The dynode layers can be biased to different electrical potentials to provide a potential gradient along the length of each microchannel. Multi-stage electron multiplication provides high gain. The device desirably is formed as a monolithic, sealed structure with a cathode structure such as a photocathode and an anode structure. The device can provide a multi pixel imaging device of extremely high sensitivity and resolution.
摘要翻译: 微型电子电子倍增器通过结合有绝缘间隔层和倍增极层的分层结构彼此平行延伸,提供了许多微通道,其中结合有导电电极层或与导电电极层邻接。 倍增极层包括具有高电子发射率的材料。 倍增极层可以被偏置到不同的电势以沿着每个微通道的长度提供电位梯度。 多级电子倍增提供高增益。 该装置理想地形成为具有诸如光电阴极和阳极结构的阴极结构的整体式密封结构。 该器件可以提供极高灵敏度和分辨率的多像素成像设备。
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公开(公告)号:US06657385B2
公开(公告)日:2003-12-02
申请号:US09885716
申请日:2001-06-20
IPC分类号: H01J4016
CPC分类号: H01J43/045 , H01J1/32 , H01J43/10 , H01J43/22
摘要: A diamond transmission dynode and photocathode are described which include a thin layer of a crystalline semiconductive material. The semiconductive material is preferably textured with a (100) orientation. Metallic electrodes are formed on the input and output surfaces of the semiconductive material so that a bias potential can be applied to enhance electron transport through the semiconductive material. An imaging device and a photomultiplier utilizing the aforesaid transmission dynode and/or photocathode are also described.
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公开(公告)号:US5168540A
公开(公告)日:1992-12-01
申请号:US692138
申请日:1991-04-26
申请人: David R. Winn , Peter R. Kirlin
发明人: David R. Winn , Peter R. Kirlin
CPC分类号: G02B6/03694 , C23C16/18 , C23C16/45561 , G01T1/201 , G02B6/02 , G02B6/03622 , H01L39/2441
摘要: A scintillating article comprising a substrate coated with an inorganic scintillating material comprising a doped or undoped material selected from the group consissting of barium fluoride, calcium fluoride, zinc oxide, zinc sulfide, zinc silicate, bismuth germanate, fast cathode ray tube phosphors, yttrium silicate, rare earth silicates, orthosilicates, and mixtures thereof. Also disclosed is an appertaining method of forming such a scintillating article, comprising depositing the inorganic scintillating material by chemical vapor deposition (CVD). In a particularly advantageous embodiment, the substrate is of fibrous form, e.g., a quartz optical quality fiber, which is coated with a scintillating material such as barium fluoride. The scintillating articles of the invention are usefully employed as detectors for ionizing particles in high energy physics applications, such as radiation track imaging and tracking chambers, calorimetry, synchrotron radiation electron detectors, and pixel detectors for active targets, as well as detector elements and high energy particle accelerators and other high rate systems.
摘要翻译: 一种闪烁制品,其包括涂覆有无机闪烁材料的基材,其包含掺杂或未掺杂的材料,所述材料选自氟化钡,氟化钙,氧化锌,硫化锌,硅酸锌,铋酸铋,快速阴极射线管荧光体,硅酸钇 ,稀土硅酸盐,原硅酸盐及其混合物。 还公开了形成这种闪烁制品的一种方法,其包括通过化学气相沉积(CVD)沉积无机闪烁材料。 在特别有利的实施方案中,基材是纤维状的,例如石英光学质量纤维,其被诸如氟化钡的闪烁材料涂覆。 本发明的闪烁物品被用作高能物理应用中用于电离粒子的检测器,例如辐射轨道成像和跟踪腔,量热法,同步加速器辐射电子检测器和用于有源靶的像素检测器以及检测器元件和高 能量粒子加速器等高速系统。
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