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公开(公告)号：US08248068B2
公开(公告)日：2012-08-21
申请号：US11918853
申请日：2006-03-25
申请人： Stephan Appelt , Wolfgang Häsing , Ulrich Sieling , Holger Kühn
发明人： Stephan Appelt , Wolfgang Häsing , Ulrich Sieling , Holger Kühn
IPC分类号： G01V3/00
CPC分类号： G01R33/282
摘要： The invention concerns a method for hyperpolarizing lithium atoms in a mixture by optically pumping, in a sampling cell, atoms of a first type or alkali metal and by spin exchange between the optically pumped electron of the alkali metal and the lithium atom electron. The lithium atoms are preferably oxidized into Li+ ions and accumulated. The nuclear spin polarization of the Li+ ions can be transmitted to a nuclear spin of an anion. The invention also concerns a method for producing substances with nuclear spin polarization in general. In accordance with said method, lithium atoms are optically pumped from atoms of a first type of alkali metal in a sampling cell and hyperpolarized by spin exchange between the optical pumped electron of the alkali metal and the lithium atom electron, the lithium atoms being then oxidized into Li+ ions. Then, the nuclear spin polarization of the Li+ ions is transmitted to another nucleus of an anion. Thus it is possible to obtain hyperpolarized nuclei such as, for example, 13C, 31P or 29Si in solid or liquid phase, in large amounts and at high polarizing levels.
摘要翻译： 本发明涉及一种通过在采样单元中光学泵浦第一类型或碱金属原子并通过碱性金属的光泵浦电子与锂原子电子之间的自旋交换来超极化混合物中的锂原子的方法。 锂原子优选被氧化成Li +离子并累积。 Li +离子的核自旋极化可以传递到阴离子的核自旋。 本发明还涉及通常产生具有核自旋极化的物质的方法。 根据所述方法，锂原子在取样室中从第一种碱金属的原子被光泵浦，并通过碱金属的光泵浦电子与锂原子电子之间的自旋交换进行超极化，然后锂原子被氧化 进入Li +离子。 然后，Li +离子的核自旋极化被传递到阴离子的另一个核。 因此，可以在固相或液相中以大量和高极化水平获得超极化核，例如13C，31P或29Si。
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公开(公告)号：US20110308364A1
公开(公告)日：2011-12-22
申请号：US13139253
申请日：2009-12-10
CPC分类号： G02B6/245 , Y10T83/0443 , Y10T83/263
摘要： The invention relates to a method and a device for removing the sheath or for stripping fibres of a fibre bundle. Each fibre comprises a core and a sheath, wherein the fibres are arranged adjacent to each other on a base such as to run in a first direction, a cut is made with two blades running perpendicular to the first direction in a plane from opposing sides such that the blades from a notch in each sheath running in the circumferential direction, the fibre bundle is then dipped in a chemical solvent up to the cuts in the fibres for a given period in order to pre-weaken the connection between the sheath and the core and d) the pre-weakened sheath sections are mechanically drawn from the fibre cores.
摘要翻译： 本发明涉及一种用于去除护套或剥离纤维束纤维的方法和装置。 每个纤维包括芯和护套，其中纤维彼此相邻地布置在基底上，以便沿第一方向延伸，切割由具有相对侧面的平面中垂直于第一方向的两个叶片形成 从每个护套中沿着圆周方向运行的切口的叶片，然后将纤维束浸入化学溶剂中直到纤维中的切口一段给定的时间段，以便预减弱护套和芯之间的连接 以及d）从纤维芯机械地拉伸预减弱的鞘部分。
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公开(公告)号：US20110302757A1
公开(公告)日：2011-12-15
申请号：US13139245
申请日：2009-12-10
IPC分类号： B23P19/00
CPC分类号： G02B6/245 , Y10T29/49815 , Y10T29/53
摘要： The invention relates to a method and a device for removing the sheath or for stripping fibres of a fibre bundle. Each fibre comprises a core and a sheath, wherein the fibres are arranged adjacent to each other on a base such as to run in a first direction, a cut is made with two blades running perpendicular to the first direction in a plane from opposing sides such that the blades from a notch in each sheath running in the circumferential direction, the fibre bundle is then dipped in a chemical solvent up to the cuts in the fibres for a given period in order to pre-weaken the connection between the sheath and the core and the pre-weakened sheath sections are mechanically drawn from the fibre cores.
摘要翻译： 本发明涉及一种用于去除护套或剥离纤维束纤维的方法和装置。 每个纤维包括芯和护套，其中纤维彼此相邻地布置在基底上，以便沿第一方向延伸，切割由具有相对侧面的平面中垂直于第一方向的两个叶片形成 从每个护套中沿着圆周方向运行的切口的叶片，然后将纤维束浸入化学溶剂中直到纤维中的切口一段给定的时间段，以便预减弱护套和芯之间的连接 并且从纤维芯机械地拉伸预弱化的鞘部分。
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公开(公告)号：US20110296965A1
公开(公告)日：2011-12-08
申请号：US13139233
申请日：2008-12-11
CPC分类号： G02B6/245 , Y10T83/0467 , Y10T83/263
摘要： The invention relates to a method for stripping fibers of a fiber bundle, wherein each fiber comprises a core and a cladding, wherein the fibers are disposed next to each other on an underlayment such that they extend along a first direction, a cutter extending transverse to the first direction cuts into the claddings and simultaneously all fibers are rolled about the longitudinal axis thereof on the underlayment, so that the cutter generates a cut running in the circumferential direction in each cladding, the fiber bundle is then immersed in a chemical solvent for a prescribed period of time, in order to pre-weaken the bond between the cladding and the core, and the pre-weakened cladding segments are mechanically pulled off of the fiber cores.
摘要翻译： 本发明涉及一种剥离纤维束纤维的方法，其中每个纤维包括一个芯和一个包层，其中纤维以一层衬垫相邻设置，使得它们沿第一方向延伸，切割器横向于 第一方向切入包层，同时所有纤维围绕其衬垫围绕其纵向轴线卷绕，从而切割器在每个包层中产生沿圆周方向延伸的切口，然后将纤维束浸入化学溶剂中 为了预先削弱包层和芯之间的结合，并且将预弱化的包层段机械地从纤芯上拉出。
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