简介：ThefabricationofX-raymasksisacriticalandchallengingprocessinLIGAtechnique.Asinductivelycoupledplasma(ICP)deepetchingappearstobethemostsuitablesourcefordeepsiliconetching,wefabricatedanewtypeX-raymaskusingthistechnique.IncomparisonwithothertypesofX-raymasks,themaskwefabricatedhastheadvantagesofitslowcostanditssimplefabricationprocess.BesiredmicrostructureshavealsobeenfabricatedusingthisnewtypeX-raymaskinLIGAtechnique.

简介：ThegrowinginterestintheuseofGalliumArsenidssemiconductormaterialshaspresentedmanyopportunitiesfordeviceoperationalspeedimprovementsbuthasalsopresentedmanyproblemsforthedevicemaker,Anoveldeep-submicronx-raylithographyprocessforT-shapedgatepatternsusefulforhigh-electron-mobilitytransistors(HEMT)isintroducedinthiswork.InthefabricationofT-shapedgateatherrlayerresistsmethodisused.Thex-rayexposureexperimentswerefinishedbyBeijingSynchrotronRadiationFacility(BSRF)3B1Abeamline,andgoodresulthasbeenobtained.

简介：新型XRD不论是响应特性，还是外形体积，都必须满足谱仪小型化的要求。其次，需考虑色散元件，谱仪仍采取滤波法。由于三倍频打靶M带辐射强度大幅度提高，高能尾部对输出信号的贡献很大，所有探测道都必须抑制高能尾部，用掠入射平面镜截止的能量就更高。用平面镜截止高能X射线的途径：一是平面镜使用高原子序数材料，二是减小掠射角。

简介：报道了软X光能诺仪探别元件的能量响应曲线标定工作．实验利用北京同步辐射装置-3W1B束经及反射率计靶室，在束流40—80mA、贮存环电子能量2.2GeV专用光运行模式下，在150—1500eV能区的四个能段，做了铝阴极X射线二权管、滤光片及擦入射平面反射镜能量响应标定实验，通过实验数据比对及分析，最终给出X射线二极管在不同能量段最大可能的测量误差范围。

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简介：TheadsorptionofCOonPtgroupmetals,asamostfundamentalelementaryreactionstep,hasbeenwidelystudiedincatalysisandelectrocatalysis.Particularly,thestructuresofCOonPt(111)havebeenextensivelyinvestigated,owingtoitsimportancetobothfundamentalandappliedcatalysis.Yet,muchlessisknownregardingCOadsorptiononaPt(111)surfacemodulatedbysupportedoxidenanostructures,whichisofmorerelevancetotechnicalcatalysis.Wethusinvestigatedthecoverage-dependentadsorptionofCOonaPt(111)surfacepartiallycoveredbyFeOxnanostructures,whichhasbeendemonstratedasaremarkablecatalystforlow-temperatureCOoxidation.Wefoundthat,duetoitsstrongchemisorption,thecoverage-dependentstructureofCOonbarePtisnotinfluencedbythepresenceofFeOx.But,oxygen-terminatedFeOxnanostructurescouldmodulatethediffusivityofCOattheirvicinity,andthusaffecttheformationoforderedCOsuperstructuresatlowtemperatures.Usingscanningtunnelingmicroscopy(STM),weinspectedthediffusivityofCO,followedthephasetransitionsofCOdomains,andresolvedthemoleculardetailsofthecoverage-dependentCOstructures.OurresultsprovideafullpictureforCOadsorptiononaPt(111)surfacemodulatedbyoxidenanostructuresandshedlightsontheinter-adsorbateinteractiononmetalsurfaces.

简介：用第一原则的乐队结构，方法和特殊quasirandom结构(平方)来临，我们系统地计算了弯系数和SnxZn1xTe合金的自然乐队偏移量的合金。我们证明鞠躬的系数和这些合金的乐队差距是易感知地作文依赖者。由于完整的重叠和Sn最外面的p轨道和Zns的delocalization转的波浪功能，在这些状态之间联合是很强壮的，导致有Sn集中x的增加的传导乐队边的重要换至较低排挡，当原子价乐队边与二进制ZnTe的相比保持几乎未改变时，因此改进可能性为双极性做。

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简介：Wehaveshownthat,incontrasttotheresultsintheliterature,theBraggpeakintensityofNi80Fe20/Cusuperlatticesisenhancedattheincidentx-rayenergyslightlyhigherthantheabsorptionedgeoftheheavierelement(Cu).TheatomicdensityatNi80Fe20/Cuinterfacewasanalysedbythediffractionanomalousfinestructuretechnologywiththeincidentangleofx-rayfixedatthefirstBraggpeak.OurresultsdemonstratetheepitaxygrowthofNi80Fe20/Cusuperlattices.Uponannealing,theepitaxityofNi80Fe20/Cumultilayersbecomespoorbutthelocalcrystallinityineachlayerisimproved.

简介：Veryrecently,theBelleandBESIIIexperimentsobservedanewcharmonium-likestateX(3823),whichisagoodcandidatefortheD-wavecharmonium(13D2).BecausetheX(3823)isjustneartheDˉDthreshold,thedecayX(3823)!J=+??canbeagoldenchanneltotestthesignificanceofcoupled-channeleffects.Inthiswork[1],thisdecayisconsideredincludingboththehidden-charmdipionandtheusualquantumchromodynamicsmultipoleexpansion(QCDME)contributions.

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简介：Tungstenisregardedasanimportantcandidateofplasmafacingmaterialininternationalthermonuclearexperimentalreactor(ITER),sothedeterminationandmodelingofspectraoftungstenplasma,especiallythespectraathightemperaturewereintenselyfocusedonrecently.Inthiswork,usingtheatomicstructurecodeofCowan,acollisionalradiativemodel(CRM)basedonthespin-orbit-split-arraysisdeveloped.Basedonthismodel,thechargestatedistributionoftungstenionsisdeterminedandthesoftX-rayspectrafromhighchargedionsoftungstenatdifferenttemperaturesarecalculated.Theresultsshowthatboththeaverageionizationchargeandlinepositionsarewellagreedwithotherscalculationsandmeasurementswithdiscrepanciesoflessthan0.63%and1.26%,respectively.Thespectraathighertemperaturesarealsoreportedandtherelationshipbetweenionabundanceandtemperatureispredictedinthiswork.

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简介：GrazingincidentX-raydiffractionatdifferentgrazinganglesforself-organizedGedotsgrownonSi(001)arecarriedoutandlatticeconstantexpansionsof1.2?paralleltothesurfaceascomparedwiththeSilatticearefoundwithintheGedots.A3.1?latticeexpansionoftheGedotsalongthegrowthdirectionisalsofundbyordinaryX-ray(004)diffraction.AccordingtothePoissonequationandtheVegardlaw,ourresultsinferthattheGedotshouldbeapartiallystrainrelaxedSiGealloywithGecontentofabuot55?2001ElsevierScienceB.V.Allrightsreserved.

简介：重离子柬轰击聚碳酸酯后．对样品进行陈化和紫外线照射数化，在优化条件下蚀刻后得到纳米孔径核孔膜。利用电化学沉积技术在核孔膜中制备了最小孔径为30纳米的铜纳米线。获得的钥纳米线／聚碳酸酯可以作为x光纳米光刻的腌膜。

简介：WereportQ-switchedandmode-lockederbium-dopedall-fiberlasersusingternaryReS2(1-x)Se2xassaturableabsorbers(SAs).ThemodulationdepthandsaturableintensityofthefilmSAare1.8%and0.046MW∕cm2.InQ-switchedmechanismoutput,thepulsewascenteredat1531.1nmwithmaximumpulseenergyandminimumpulsewidthof28.29nJand1.07μs,respectively.Inmode-lockedoperation,thepulsewascenteredat1561.15nmwithpulsewidthof888fs,repetitionrateof2.95MHz,andmaximumpulseenergyof0.275nJ.Tothebestofourknowledge,thisisthefirstreportonthemode-lockedEr3+-dopedfiberlaserusingternarytransitionmetaldichalcogenides.Thisworksuggestsprospective2D-materialSAscanbewidelyusedinversatilefieldsduetotheirattractiveoptoelectronicandtunableenergybandgapproperties.

简介：QuantumdynamicscalculationsforthetitlereactionH(2S)+S2(X3-Σg)→SH(X2Π)+S(3P)areperformedbyusingagloballyaccuratedoublemany-bodyexpansionpotentialenergysurface[J.Phys.Chem.A1155274(2011)].TheChebyshevrealwavepacketpropagationmethodisemployedtoobtainthedynamicalinformation,suchasreactionprobability,initialstate-specifiedintegralcrosssection,andthermalrateconstant.Itisfoundnotonlythatthereisareactionthresholdnear0.7eVinbothreactionprobabilitiesandintegralcrosssectioncurves,butalsothatboththeprobabilityandcrosssectionincreasefirstlyandthendecreaseasthecollisionenergyincreases.Theexistenceoftheresonancestructureinboththeprobabilityandcrosssectioncurvesisascribedtothedeeppotentialwell.Thecalculationoftherateconstantrevealsthatthereactionoccurringonthepotentialenergysurfaceoftheground-stateHS2isslowtotakeplace.

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