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汞线
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  “汞线”译为未确定词的双语例句
     Monitored the strongest ~5D_0→~7F_2 emission line (610 nm), they all have a broad and strong excitation band which centered at about 246 nm which is ascribed to the charge transfer band (CTB) of Eu~(3+)-O~(2-) and result in that the phosphor can be excitated efficiently by low-pressure mercury lamp.
     监测其最强的5D0→7F2发射线,其激发光谱在250 nm左右有一个宽的激发带,归属于Eu-O电荷迁移带,适于用254 nm汞线激发; 在300~450 nm有一些弱的归属于Eu3+的f-f跃迁的锐吸收峰;
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     The results show that LaNbO_4 can be exited to emit light of purplish blue band, and the intensity of its emitted light is 3 to 4 times higher than that of LaNbO_4 prepared through solid-state reaction method.
     测试表明,LaNbO4可被汞线激发,发射波长处于蓝紫光区; 相比高温固相法,化学共沉淀法制备的LaNbO4粉末相对发光强度增加3~4倍;
短句来源
     Doping of Tb leads to emission of yellowish green light at 548 nm, which is over 10 times brighter than that emitted by solid reaction synthesized powders of the same designated composition.
     Tb的掺杂使(La,Tb)NbO4粉体在汞线激发下发出黄绿色光,(La,Tb)NbO4的基质络离子NbO6发生淬灭,并对有关机制进行了讨论。
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     ONLINE
     在线
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     News Online
     信息在线
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     mercuric coxide(HgO);
     氧化 ;
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     Determination of relative intensity for Zeeman spectrum line of HgI
     测定原子塞曼谱线相对强度
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     Hg >
     >
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  mercury line
The intensities of the mercury line at a wavelength of 546.1 nm and the helium line at 587.6 nm have been measured.
      
On the basis of models of HFELs developed earlier, we have calculated the radial dependences of the radiation intensity of the mercury line at 546.1 nm and the helium line at 587.6 nm.
      
The addition of main flue gas components such as water vapour (concentration >amp;lt;6 g/m3), oxygen (>amp;lt;4% v/v) and carbon dioxide (>amp;lt;15% v/v) decrease the mercury line intensities to a considerable extent.
      
The analytical performance characteristics of FI-CV-rf-GD-OES for mercury detection were evaluated at the 253.6?nm emission mercury line.
      
Study of the width of the mercury line at λ=253.7 nm in a light source for atomic-absorption measurements
      
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Lanthanum orthoniobate(LaNbO 4) and dopped Tb lanthanum orthoniobate(La,Tb)NbO 4 were prepared by solid phase synthesis method using Nb 2O 5 and La 2O 3 as the raw materials Both the two powders can obtain particle size about d 50 2~3μm Powder characteristics of LaNbO 4 and (La,Tb)NbO 4 were studied by X-ray diffraction,and the luminsecence properties were tested It was shown that the luminescence intensity of (La,Tb)NbO 4 is more strong than LaNbO 4 and there is some difference on quality of...

Lanthanum orthoniobate(LaNbO 4) and dopped Tb lanthanum orthoniobate(La,Tb)NbO 4 were prepared by solid phase synthesis method using Nb 2O 5 and La 2O 3 as the raw materials Both the two powders can obtain particle size about d 50 2~3μm Powder characteristics of LaNbO 4 and (La,Tb)NbO 4 were studied by X-ray diffraction,and the luminsecence properties were tested It was shown that the luminescence intensity of (La,Tb)NbO 4 is more strong than LaNbO 4 and there is some difference on quality of colour

采用高温固相法合成了 L a Nb O4 及掺杂 Tb的 (L a,Tb) Nb O4 多晶粉末 ,对两种粉末进行了 X射线粉末衍射定性鉴定 ,测试了激发和发射光谱 ,以汞线作为激发光源测定了其荧光特性

Ultrafine pure LaNbO_4 and doped with Tb powders were prepared through coprecipitation method. Luminescence properties of LaNbO_4 and (La, Tb)NbO_4 were tested. The results show that LaNbO_4 can be exited to emit light of purplish blue band, and the intensity of its emitted light is 3 to 4 times higher than that of LaNbO_4 prepared through solid-state reaction method. Doping of Tb leads to emission of yellowish green light at 548 nm, which is over 10 times brighter than that emitted by solid reaction synthesized...

Ultrafine pure LaNbO_4 and doped with Tb powders were prepared through coprecipitation method. Luminescence properties of LaNbO_4 and (La, Tb)NbO_4 were tested. The results show that LaNbO_4 can be exited to emit light of purplish blue band, and the intensity of its emitted light is 3 to 4 times higher than that of LaNbO_4 prepared through solid-state reaction method. Doping of Tb leads to emission of yellowish green light at 548 nm, which is over 10 times brighter than that emitted by solid reaction synthesized powders of the same designated composition.

采用化学共沉淀法和高温固相法合成制备得到纯的和掺杂Tb的LaNbO4超细粉体,并对其发光性能进行了激发和发射光谱分析。测试表明,LaNbO4可被汞线激发,发射波长处于蓝紫光区;相比高温固相法,化学共沉淀法制备的LaNbO4粉末相对发光强度增加3~4倍;Tb的掺杂使(La,Tb)NbO4粉体在汞线激发下发出黄绿色光,(La,Tb)NbO4的基质络离子NbO6发生淬灭,并对有关机制进行了讨论。

Red phosphor Ca_4(La_(1-x-y)Gd_xY_y)_(1-n)O(BO_3)_3∶nEu~(3+) (LnCOB∶Eu, Ln= La_(1-x-y)Gd_xY_y) was (synthesized) with the method of solid-state reaction at high temperature. The luminescent properties were investigated from vacuum ultraviolet (VUV, E>50 000 cm~(-1), λ<200 nm) to visible region. The component with best luminescence intensity was found out and compare with commercial red phosphor. This system shows effective red emission under the excitation of low-pressure mercury lamp. The emission spectra of...

Red phosphor Ca_4(La_(1-x-y)Gd_xY_y)_(1-n)O(BO_3)_3∶nEu~(3+) (LnCOB∶Eu, Ln= La_(1-x-y)Gd_xY_y) was (synthesized) with the method of solid-state reaction at high temperature. The luminescent properties were investigated from vacuum ultraviolet (VUV, E>50 000 cm~(-1), λ<200 nm) to visible region. The component with best luminescence intensity was found out and compare with commercial red phosphor. This system shows effective red emission under the excitation of low-pressure mercury lamp. The emission spectra of LnCOB∶Eu~(3+) show the characteristic ~5D_0→~7F_J(J=0, 1, 2, 3, 4) transition of Eu~(3+) ions under the excitation of 254 nm. Monitored the strongest ~5D_0→~7F_2 emission line (610 nm), they all have a broad and strong excitation band which centered at about 246 nm which is ascribed to the charge transfer band (CTB) of Eu~(3+)-O~(2-) and result in that the phosphor can be excitated efficiently by low-pressure mercury lamp. In the VUV range, there is a broad host absorption band located around 184~188 nm in the range from 150~200 nm, which include the (f-d) transition of Eu~(3+). And for Ca_4GdO(BO_3)_3∶Eu~(3+), this broad band is very stronger than that in another two hosts, which should be due to the existence of Gd~(3+) ions and the excitation efficiency can be enhanced (around) 184~188 nm effectively.

用高温固相法合成了红色荧光粉Ca4(La1-x-yGdxYy)1-nO(BO3)3∶nEu3+(LnCOB∶Eu,Ln=La1-x-y-GdxYy),并对其在真空紫外至可见范围的发光性质进行了系统的研究,找出发光较好的组分范围并与某些商品红色荧光粉进行了比较。LnCOB∶Eu在254 nm紫外线激发下的发射光谱为Eu3+的5D0→7FJ(J=0,1,2,3,4)的特征跃迁。监测其最强的5D0→7F2发射线,其激发光谱在250 nm左右有一个宽的激发带,归属于Eu-O电荷迁移带,适于用254 nm汞线激发;在300~450 nm有一些弱的归属于Eu3+的f-f跃迁的锐吸收峰;在真空紫外区184~188 nm附近有一个宽带,为基质吸收带,并可能包含了Eu3+的f-d跃迁。在Ca4GdO-(BO3)3∶Eu3+的激发光谱中,还包含了Gd3+的8S7/2→6GJ跃迁,此跃迁增强了荧光粉在184~188 nm附近的激发强度。

 
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