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公开(公告)号：EP0031634A1
公开(公告)日：1981-07-08
申请号：EP80302406.6
申请日：1980-07-17
Applicant: EXXON RESEARCH AND ENGINEERING COMPANY
Inventor： Cox, Donald Martin , Kaldor, Andrew , Priestley, Eldon Bruce , Hall, Richard Barry
IPC: B01D59/34
CPC classification number: B01D59/34
Abstract: A method of separating isotopes of an element, for example uranium, comprises providing molecules of a compound of the element which have isotopically shifted infrared absorption spectra. For uranium such molecules can be a mixture of 235 UO 2 - and 238 UO 2 -containing molecules of UO 2 (A 1 A 2 ).L, where A, and A 2 are monovalent anions, such as CF 3 COCHCOCF 3 , and L is neutral ligand, such as trimethylphosphate. The molecules are irradiated at a first infrared absorption frequency to isotopically selectively dissociate them and provide molecular fragments containing the element. The fragments are then irradiated at a second infrared absorption frequency shifted, preferably to the blue of the first frequency, by less than about 100 cm-'. Preferably initiation of the second irradiation occurs between 0.1 and 10 microseconds after initiation of the first irradiation.
Abstract translation: 分离元素的同位素（例如铀）的方法包括提供具有同位素偏移的红外吸收光谱的元素化合物的分子。 对于铀来说，这样的分子可以是含有U 2 O 2（A1A2）的L 2 O 3和不含UO 2的分子的混合物，其中A1和A2是一价阴离子， 例如CF 3 COCHCOCF 3，L是中性配体，例如磷酸三甲酯。 分子以第一红外吸收频率照射以同位素选择性地离解它们并提供含有该元件的分子片段。 然后将片段以第二红外吸收频率（优选为第一频率的蓝色）小于约100cm -1进行辐照。 优选地，在第一次照射开始之后，第二次照射的开始发生在0.1和10微秒之间。
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公开(公告)号：EP0057568B1
公开(公告)日：1987-04-01
申请号：EP82300419.7
申请日：1982-01-27
Applicant: EXXON RESEARCH AND ENGINEERING COMPANY
Inventor： Kaldor, Andrew , Robinowitz, Paul , Stein, Alexander
CPC classification number: G01J5/522 , B62B13/10 , G01J5/0044 , G01J5/08 , G01J5/0806 , G01J5/0834 , G01J5/0846 , G01J5/0862 , G01J5/0871 , G01J5/0896 , G01J9/04 , G01J2005/0051 , G01J2005/0074 , G01J2005/583
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公开(公告)号：EP0057568A3
公开(公告)日：1982-09-08
申请号：EP82300419
申请日：1982-01-27
Applicant: EXXON RESEARCH AND ENGINEERING COMPANY
Inventor： Kaldor, Andrew , Robinowitz, Paul , Stein, Alexander
CPC classification number: G01J5/522 , B62B13/10 , G01J5/0044 , G01J5/08 , G01J5/0806 , G01J5/0834 , G01J5/0846 , G01J5/0862 , G01J5/0871 , G01J5/0896 , G01J9/04 , G01J2005/0051 , G01J2005/0074 , G01J2005/583
Abstract: The present invention concerns an unique laser radiometer capable of accurately measuring the radiation temperature of a radiant surface and independently measuring the surface's emissivity. A narrow-band radiometer is combined with a laser reflectometer to measure concurrently radiance and emissivity of a remote, hot surface. Together, radiance and emissivity yield the true surface temperature of the remote target. A narrow receiver bandwidth is attained by one of two methods; (a) heterodyne detection or (b) optical filtering. A direct measurement of emissivity is used to adjust the value obtained for the thermal radiation signal to substantially enhance the accuracy of the temperature measurement for a given subject surface. The technique provides substantially high detection sensitivity over a very narrow spectral bandwidth.
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公开(公告)号：EP0057568A2
公开(公告)日：1982-08-11
申请号：EP82300419.7
申请日：1982-01-27
Applicant: EXXON RESEARCH AND ENGINEERING COMPANY
Inventor： Kaldor, Andrew , Robinowitz, Paul , Stein, Alexander
CPC classification number: G01J5/522 , B62B13/10 , G01J5/0044 , G01J5/08 , G01J5/0806 , G01J5/0834 , G01J5/0846 , G01J5/0862 , G01J5/0871 , G01J5/0896 , G01J9/04 , G01J2005/0051 , G01J2005/0074 , G01J2005/583
Abstract: The present invention concerns an unique laser radiometer capable of accurately measuring the radiation temperature of a radiant surface and independently measuring the surface's emissivity. A narrow-band radiometer is combined with a laser reflectometer to measure concurrently radiance and emissivity of a remote, hot surface. Together, radiance and emissivity yield the true surface temperature of the remote target. A narrow receiver bandwidth is attained by one of two methods; (a) heterodyne detection or (b) optical filtering. A direct measurement of emissivity is used to adjust the value obtained for the thermal radiation signal to substantially enhance the accuracy of the temperature measurement for a given subject surface. The technique provides substantially high detection sensitivity over a very narrow spectral bandwidth.
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