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1.发明授权Barium magnesium fluoride phosphors and lamps and X-ray screens embodying same 失效钡氟化镁荧光粉和灯具以及体现相同的X射线荧光屏
公开(公告)号：US4112328A
公开(公告)日：1978-09-05
申请号：US763051
申请日：1977-01-27
CPC分类号： C09K11/7733
摘要： Two new barium magnesium fluorides, Ba.sub.2 Mg.sub.3 F.sub.10 and BaMg.sub.3 F.sub.8, can be prepared by solid state reactions of barium fluoride and magnesium fluoride by heating in controlled atmospheric conditions at a temperature from about 700.degree. C to about 850.degree. C. In the BaF.sub.2 -MgF.sub.2 binary system, compositions containing from about 40 to 85 mole percent of MgF.sub.2 when activated by europium alone or in combination with manganese have been found to luminesce when excited by ultraviolet light, cathode rays, or with x-ray bombardment. Lamps incorporating these materials afford benefits of high temperature stability and x-ray intensifying screens incorporating these materials yield a speed equal to or better than present screens employing calcium tungstate.
摘要翻译： 两种新的钡镁氟化物Ba2Mg3F10和BaMg3F8可以通过在约700℃至约850℃的温度下在受控的大气条件下加热而通过氟化钡和氟化镁的固态反应来制备。在BaF2-MgF2二元体系 当通过铕单独或与锰组合活化时，含有约40至85摩尔％的MgF 2的组合物当被紫外线，阴极射线或X射线轰击激发时已发现发光。 结合这些材料的灯具有高温稳定性的优点，并且包含这些材料的x射线增强屏幕产生等于或优于使用钨酸钙的现有屏幕的速度。
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2.发明授权Europium-activated alkaline earth fluorohalide x-ray phosphors and method for preparing the same 失效铕活化碱土金属卤化物x射线荧光体及其制备方法
公开(公告)号：US4100101A
公开(公告)日：1978-07-11
申请号：US698058
申请日：1976-06-21
CPC分类号： C09K11/7733
摘要： In europium-activated alkaline earth fluorohalide x-ray phosphors, the brightness is improved by having a detectable amount of the europium activator in the trivalent state. This beneficial effect is achieved by using a non-reducing firing atmosphere during synthesis for a sufficient time to produce an amount of trivalent europium that is detectable by exciting a sample of the phosphor after firing with 254 nanometer excitation.
摘要翻译： 在铕活化的碱土金卤化物x射线荧光体中，通过在三价状态下具有可检测量的铕活化剂来提高亮度。 通过在合成期间使用非还原烧成气氛足够的时间来实现这种有益效果，以产生一定量的三价铕，其可以通过用254纳米激发烧成后激发荧光体样品来检测。
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公开(公告)号：US3951848A
公开(公告)日：1976-04-20
申请号：US571926
申请日：1975-04-28
CPC分类号： G21K4/00 , C09K11/7733
摘要： An x-ray luminescent phosphor composition consists essentially of a europium activated barium fluorochloride and an effective amount of brightness enhancement additive selected from lead, thallium and aluminum ions. The compositions are prepared by a solid state process in which a barium chloride and barium fluoride and a europium source are heated together in a non-oxidizing atmosphere with a source of lead or thallium or aluminum hydroxide. The temperatures utilized are from about 750.degree. to 925.degree.C for from about 1 to about 24 hours.
摘要翻译： X射线发光荧光粉组合物主要由铕活化的氟化钡钡和有效量的亮铅增强添加剂组成，其选自铅，铊和铝离子。 通过固相法制备组合物，其中氯化钡和氟化钡和铕源在非氧化性气氛中一起用铅或铊或氢氧化铝源加热。 使用的温度为约750-925℃，时间为约1至约24小时。
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公开(公告)号：US4252865A
公开(公告)日：1981-02-24
申请号：US909166
申请日：1978-05-24
IPC分类号： H01L31/04 , F24J2/48 , F28F3/02 , H01L31/0236 , H01L31/20 , H01L31/00 , F24J3/02 , C23C15/00
CPC分类号： F24J2/487 , H01L31/0236 , H01L31/202 , Y02E10/40 , Y02E10/50 , Y02P70/521 , Y10S126/908 , Y10S428/913 , Y10T428/12465 , Y10T428/12528 , Y10T428/12674 , Y10T428/12993 , Y10T428/261
摘要： The invention contemplates a highly solar-energy absorbing device wherein the surface exposed to incident solar energy is a particularly characterized roughness of an amorphous semiconductor material, the particular characterization being that of an array of outwardly projecting structural elements of relatively high aspect ratio and at effective lateral spacings which are or include those in the order of magnitude of wavelengths within the solar-energy spectrum.
摘要翻译： 本发明考虑了一种高度太阳能吸收装置，其中暴露于入射太阳能的表面是非晶半导体材料的特别表征的粗糙度，其特征在于具有相对较高纵横比的向外突出的结构元件的阵列， 横向间隔是或包括在太阳能光谱内的波长量级的那些。
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