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1.发明授权Production of high-purity, large-volume monocrystals that are especially radiation-resistant from crystal shards 有权生产高纯度，大容量的单晶体，特别是从晶体碎片防辐射公开(公告)号：US07588637B2
公开(公告)日：2009-09-15
申请号：US11609626
申请日：2006-12-12
IPC分类号： C30B13/28
摘要： A method for producing high-purity, large-volume monocrystals that are especially radiation-resistant and have low intrinsic birefringence. From a melt of crystalline raw material, with controlled cooling and solidification, a crystal is generated. As the crystalline raw material, shards and/or waste from already-grown crystals is used, and the re-used raw material 1) upon visual observation in daylight has no color; and 2) upon illumination with a white-light lamp in a darkroom a) has no or at maximum a just barely perceivable reddish and/or bluish fluorescence; and b) has no or at maximum a just barely perceivable diffuse scattering; and c) has no or only slight discrete scattering of at maximum two visually perceivable scattering centers per dm3. In this way, crystals can be obtained which after tempering have a BSDF value of
摘要翻译： 一种生产高纯度，大容量单晶的方法，特别是耐辐射和具有低固有双折射。 从结晶原料的熔体中，通过控制冷却和固化，产生晶体。 作为结晶原料，使用已经生长的晶体的碎片和/或废物，并且在日光下目视观察时，再利用的原料1）没有颜色; 和2）在暗室中用白光灯照明时a）没有或最多只有几乎不可察觉的淡红色和/或蓝色荧光; 和b）没有或最多只有几乎不可察觉的漫射散射; 和c）没有或仅有最大两个视觉上可感知的散射中心/ dm 3的轻微离散散射。 以这种方式，可以获得晶体，其在回火之后BSDF值<7×10 -7，减去36 Zernike系数<15×10-8之后的RMS均匀性，111方向的±0.2nm的SDR-RMS值 /厘米。
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2.发明申请公开(公告)号：US20090297430A1
公开(公告)日：2009-12-03
申请号：US12539795
申请日：2009-08-12
摘要： The high-purity alkaline earth halide crystals, especially CaF2, BaF2 or MgF2 crystals, have a diffuse scatter distribution function value of less than 7×10−7, an RMS uniformity of refractive index of less than 15×10−8 after subtraction of Zernike coefficients and an RMS value of birefringence in the (111) direction of less than 0.2 nm/cm. Preferably the crystals exhibit a loss coefficient of less than 5×10−4 cm−1 after irradiation with 10×109 laser pulses with an energy density of 10 mJ/cm2 at a wavelength of 193 nm. Also they have RMS birefringence in the (100) direction or the (111) direction that is less than 0.35 nm/cm.
摘要翻译： 高纯度碱土卤化物晶体，特别是CaF 2，BaF 2或MgF 2晶体具有小于7×10 -7的漫射散射分布函数值，减去Zernike系数后的折射率RMS均匀度小于15×10 -8， （111）方向的双折射的RMS值小于0.2nm / cm。 优选地，在193nm的能量密度为10mJ / cm 2的10×10 9个激光脉冲照射之后，晶体表现出小于5×10 -4 cm -1的损耗系数。 此外，它们在（100）方向或（111）方向上具有小于0.35nm / cm的RMS双折射。
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3.发明申请公开(公告)号：US20070186844A1
公开(公告)日：2007-08-16
申请号：US11609626
申请日：2006-12-12
摘要： A method for producing high-purity, large-volume monocrystals that are especially radiation-resistant and have low intrinsic birefringence. From a melt of crystalline raw material, with controlled cooling and solidification, a crystal is generated. As the crystalline raw material, shards and/or waste from already-grown crystals is used, and the re-used raw material 1) upon visual observation in daylight has no color; and 2) upon illumination with a white-light lamp in a darkroom a) has no or at maximum a just barely perceivable reddish and/or bluish fluorescence; and b) has no or at maximum a just barely perceivable diffuse scattering; and c) has no or only slight discrete scattering of at maximum two visually perceivable scattering centers per dm3. In this way, crystals can be obtained which after tempering have a BSDF value of
摘要翻译： 一种生产高纯度，大容量单晶的方法，特别是耐辐射和具有低固有双折射。 从结晶原料的熔体中，通过控制冷却和固化，产生晶体。 作为结晶原料，使用已经生长的晶体的碎片和/或废物，并且在日光下目视观察时，再利用的原料1）没有颜色; 和2）在暗室中用白光灯照明时a）没有或最多只有几乎不可察觉的淡红色和/或蓝色荧光; 和b）没有或最多只有几乎不可察觉的漫射散射; 和c）在dm 3处没有或仅有最大两个视觉上可感知的散射中心的轻微的离散散射。 以这种方式，可以获得晶体，其在回火之后具有<7×10 -7 -7的BSDF值，在减去36次泽尼克系数<15×10 -8 -8之后的RMS均匀性 ，111方向的SDR-RMS值<0.2nm / cm。
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