JF-01VINTAGE OVERDRIVE——经典tubescreamer音色再现,采用JRC4558芯片,具有圆润、温暖、平滑、细腻的过载音色,产品失真度不高,延音效果非常好,将音色损耗降至最小。JF-02ULTIM ATE DRIVE——介于失真和过载之间的过载单块,不同于通...JF-01VINTAGE OVERDRIVE——经典tubescreamer音色再现,采用JRC4558芯片,具有圆润、温暖、平滑、细腻的过载音色,产品失真度不高,延音效果非常好,将音色损耗降至最小。JF-02ULTIM ATE DRIVE——介于失真和过载之间的过载单块,不同于通常的二极管削波电路,产品能够创造更多的动态余量。展开更多
A highly accurate and precise technique for measurement of the 93 Nb(n,n’)93m Nb reaction rate was established for the material surveillance tests,etc.in fast reactors.The self-absorption effect on the measurement of...A highly accurate and precise technique for measurement of the 93 Nb(n,n’)93m Nb reaction rate was established for the material surveillance tests,etc.in fast reactors.The self-absorption effect on the measurement of the characteristic X-rays emitted by 93m Nb was decreased by the dissolution and evaporation to dryness of niobium dosimeter.A highly precise count of the number of 93 Nb atoms was obtained by measuring the niobium solution concentration using inductively coupled plasma mass spectrometry.X-rays of 93m Nb were measured accurately by means of comparing the X-ray intensity of irradiated niobium solution with that of the solution in which stable 93 Nb was added.The difference between both intensities indicates the effect of 182 Ta,which is generated from an impurity tantalum,and the intensity of X-rays from 93m Nb was evaluated.Measurement error of the 93 Nb(n,n’)93m Nb reaction rate was reduced to be less than 4%,which was equivalent to the other reaction rate errors of dosimeters used for Joyo dosimetry.In addition,an advanced technique using Resonance Ionization Mass Spectrometry was proposed for the precise measurement of 93m Nb yield,and 93m Nb will be resonance-ionized selectively by discriminating the hyperfine splitting of the atomic energy levels between 93 Nb and 93m Nb at high resolution.展开更多
文摘JF-01VINTAGE OVERDRIVE——经典tubescreamer音色再现,采用JRC4558芯片,具有圆润、温暖、平滑、细腻的过载音色,产品失真度不高,延音效果非常好,将音色损耗降至最小。JF-02ULTIM ATE DRIVE——介于失真和过载之间的过载单块,不同于通常的二极管削波电路,产品能够创造更多的动态余量。
文摘A highly accurate and precise technique for measurement of the 93 Nb(n,n’)93m Nb reaction rate was established for the material surveillance tests,etc.in fast reactors.The self-absorption effect on the measurement of the characteristic X-rays emitted by 93m Nb was decreased by the dissolution and evaporation to dryness of niobium dosimeter.A highly precise count of the number of 93 Nb atoms was obtained by measuring the niobium solution concentration using inductively coupled plasma mass spectrometry.X-rays of 93m Nb were measured accurately by means of comparing the X-ray intensity of irradiated niobium solution with that of the solution in which stable 93 Nb was added.The difference between both intensities indicates the effect of 182 Ta,which is generated from an impurity tantalum,and the intensity of X-rays from 93m Nb was evaluated.Measurement error of the 93 Nb(n,n’)93m Nb reaction rate was reduced to be less than 4%,which was equivalent to the other reaction rate errors of dosimeters used for Joyo dosimetry.In addition,an advanced technique using Resonance Ionization Mass Spectrometry was proposed for the precise measurement of 93m Nb yield,and 93m Nb will be resonance-ionized selectively by discriminating the hyperfine splitting of the atomic energy levels between 93 Nb and 93m Nb at high resolution.
