Rare-gas hydrogen-halide excimer laser with hydrogen additive
    1.
    发明授权
    Rare-gas hydrogen-halide excimer laser with hydrogen additive 失效
    具有氢添加剂的稀有卤化氢准分子激光器

    公开(公告)号:US4340968A

    公开(公告)日:1982-07-20

    申请号:US157942

    申请日:1980-06-09

    IPC分类号: H01S3/225 H01S3/22

    CPC分类号: H01S3/225

    摘要: A rare-gas hydrogen-halide laser is improved by including or adding a predetermined quantity of a hydrogen donor additive to its gas mixture. The closed-off operation lifetime of lasers such as XeCl, KrCl, or XeBr are tripled by adding up to 0.05% hydrogen to the laser gas mixture.

    摘要翻译: 通过在其气体混合物中包含或添加预定量的氢供体添加剂来改善稀有气体卤化氢激光器。 XeCl,KrCl或XeBr等激光器的关闭运行寿命通过加入激光气体混合物中的0.05%氢气而增加了三倍。

    Production of carbonyl fluoride
    2.
    发明授权
    Production of carbonyl fluoride 失效
    生产碳酰氟

    公开(公告)号:US4447304A

    公开(公告)日:1984-05-08

    申请号:US350742

    申请日:1982-02-22

    CPC分类号: C01B31/00 B01J19/121

    摘要: A method of producing carbonyl fluoride by multiphoton decomposition of carbon dioxide-sulphur hexafluoride mixtures comprising irradiating gaseous carbon dioxide-sulphur hexafluoride mixtures in a reaction chamber at a pressure in the 10-50 Torr range with a laser beam at a frequency of about 944 wavenumbers and passing the material from the reaction chamber after irradiation through a chemical processing stage to obtain a carbonyl fluoride product.

    摘要翻译: 一种通过二氧化碳 - 六氟化硫混合物的多光子分解生产碳酰氟的方法,包括在10-50乇范围内的压力下用激光束以约944个波数的频率照射反应室中的气态二氧化碳 - 六氟化硫混合物 并通过化学处理阶段将辐射后的材料从反应室送出,得到碳酰氟产物。

    Laser production of carbon-13 based on CF.sub.2 HCl
    3.
    发明授权
    Laser production of carbon-13 based on CF.sub.2 HCl 失效
    基于CF2HCl的碳-13激光生产

    公开(公告)号:US4436709A

    公开(公告)日:1984-03-13

    申请号:US350741

    申请日:1982-02-22

    IPC分类号: B01D59/34 B01D59/00

    CPC分类号: B01D59/34

    摘要: A method of producing carbon-13 using CF.sub.2 HCl as the feedstock (substrate) material in which the CF.sub.2 HCl is enriched up to a first level of C-13 by I.R. laser photodissociation and then to 90-99% C-13 by a second exchange process. In the preferred arrangement the second stage is a chemical exchange process.

    摘要翻译: 使用CF2HCl作为原料(基质)材料生产碳-13的方法,其中CF2HCl由I.R.富集至第一级C-13。 激光光解,然后通过第二次交换进行到90-99%C-13。 在优选的布置中,第二阶段是化学交换过程。

    Method of production of vitamin-D
    4.
    发明授权
    Method of production of vitamin-D 失效
    维生素D的生产方法

    公开(公告)号:US4388242A

    公开(公告)日:1983-06-14

    申请号:US358201

    申请日:1982-03-15

    IPC分类号: C07C401/00 C07J17/00 C07J9/00

    摘要: A method of upgrading a product containing a minor proportion of pre-vitamin d.sub.2 or pre-vitamin d.sub.3 and a major proportion of tachysterol comprising irradiating the product with laser light in the wavelength range 330-360 nanometers to obtain a product containing approximately 95% pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3, and heating this product to convert the pre-vitamin -D.sub.2 or pre-vitamin -D.sub.3 to vitamin -D.sub.2 or vitamin -D.sub.3.

    摘要翻译: 一种升级包含少量前维生素D 2或维生素D 3和主要比例的速溶甾类产物的产品的方法,包括用波长范围330-360纳米的激光照射产物,以获得含有约95%预 - 维生素-D2或维生素-D3,并加热该产品以将维生素-D2或维生素-D3转化为维生素-D2或维生素-D3。

    Method of producing carbon-13 by multiphoton decomposition of C.sub.3
F.sub.
    5.
    发明授权
    Method of producing carbon-13 by multiphoton decomposition of C.sub.3 F.sub. 失效
    通过C3F6 + B的多光子分解生产碳-13的方法

    公开(公告)号:US4328078A

    公开(公告)日:1982-05-04

    申请号:US132656

    申请日:1980-03-21

    IPC分类号: B01D59/34 B01D59/00

    CPC分类号: B01D59/34

    摘要: A method of producing carbon--13 by multiphoton decomposition of C.sub.3 F.sub.6, said material containing carbon--12 and carbon--13 isotopic species, comprising irradiating gaseous C.sub.3 F.sub.6 in a reaction chamber at a pressure below 10 Torr with a laser beam at a frequency in the range of 950 to 1020 wavenumbers and providing a minimum fluence of 1 joules per sq. cm. and passing the material through a physical separation stage to obtain a .sup.13 C.sub.2 F.sub.4 product.

    摘要翻译: 一种通过C3F6的多光子分解生产碳-13的方法,所述材料含有碳-12和碳-13同位素物质,其包括在压力低于10托的反应室中以一定频率的激光束照射气态C 3 F 6 950至1020个波数,并提供1焦耳/平方厘米的最小注量。 并使材料通过物理分离阶段以获得13C2F4产品。