简介：′93桂林中外物理教师学术交流会于7月31日至8月3日在广西师范大学举行。来自日本、美国、德国、韩国、菲律宾、泰国和香港等国家和地区的38名外方代表与来自国内25个省，市、自治区的159名中方代表出席了会议，中国物理学会、物理通报等单位发来了贺信。

简介：在这研究，塑料闪烁器察觉者的不同参数被Geant4模拟工具箱调查。这些参数由PMT以及表面的半径，长度和位置组成了反射打并且完成选择。而且，二器官的塑料材料的反应时间分布被学习。结果显示收集光光子与PMT半径头一起有一种线性关系。另外，PMT的垂直地点与光光子收集有一种非线性的关系。然而，收集由增加PMT长度或动人的PMT头减少了水平位置。二塑料闪烁器材料的反应功能在对试验性的出版结果的好同意。另外，Geant4放射运输代码能模仿事件放射光子并且预言随后的事件到PMT头很好。结果显示BC-404有更快的焕发性质对BC-400器官的闪烁器材料。在Geant4产量之间的比较说明最好的反射镜材料和表面为光光子完成类型，这是地面TiO2。

简介：Flowercolorastheimportanteconomicindicatorforornamentalplantshasbecometheprimarytargetforornamentalimprovingandbreeding.Heavyionmutationtechnologyasauniqueandefficientmutagenhasbeenwidelyusedingermplasminnovationandplantbreeding.Inourstudy,150youngshootsofPelargoniumwereexposedto80MeV/ucarbonionsandfinallyonestablegeneticflowercolormutantwasobtainedatdosageof30Gy.Comparingwithwildtype,thephysiologicalindexesofmutantdisplayedsignificantdifferences.Thecolorofpetalinmutantwaschangedfromredtolightpink,andthecolorofpeduncleandtoruswaschangedfromgreentored,aswellasthepistilsandstamens’colorwerechangedfromyellowgreentopurplishred.

简介：WepresentseveralcomparisonsofGEANT4simulationswithtestbeamdataandGEANT3simulationsfordifferentliquidargon(LAr)calorimetersoftheATLASdetector,Allrelevantpartsofthetestbeamsetup(scintilators,multiwireproportionalchambers,cryostatetc.)aredescribedinGEANT4aswellasinGEANT3.MuonandelectrondataatdifferentenergieshavebeencomparedwithMonteCarloprediction.

简介：Thegreenlong-after-glowluminescencefromTb3+-dopedSr2SiO4phosphors,whicharesynthesizedbythehightemperaturesolidstatereactioninareductiveatmosphere,isobservedinthispaper.Theresultsshowthatunderultravioletexcitation,theobtainedphosphorsproduceanintensegreen-lighting-emissionfromtheTb3+,andthegreen-lightinglongafter-glowluminescencerelatedtoTb3+canlasthalfanhouraftertheirradiationsourcehasbeenremoved.Moreover,theeffectsofco-dopingLi+,Dy3+,Er3+,Gd3+,andYb3+withTb3+onthedecaypropertiesandthermoluminescencepropertiesareinvestigatedtoconfirmthelong-after-glowmechanism.

简介：ThegatedielectricthicknessdecreasesdramaticallywiththecontinuousscalingofMOSdevices,whichhasseriousconsequencesontheleakagecurrentandthepowerconsumptionoftheSiO2-basedMOSdevices.Hafniumdioxide(HfO2),asakindofhigh-kmaterial,arerecognizedasalternativestoSiO2forfutureadvancedgatedevicesandspaceapplications[1].Radiation-inducedeffectsonconventionalSiO2dielectricshavebeeninvestigated.Now,anenormousamountofeffortwasrequiredtoadaptthenewhigh-ksystemsforradiationhardapplication.

简介：Inourexperiments,westudiedthecommercialSingleLevelCell(SLC)NANDFlashdevicesmanufacturedbyMicronTechnology.ThememorieswereirradiatedattheHeavyIonResearchFacilityinLanzhou(HIRFL)intheInstituteofModernPhysics(IMP),ChineseAcademyofSciences(CAS).Weusedtwokindsofheavyions(86Krand209Bi)toirradiatetheFlashmemoriesandthedegraderswithdifferentthicknesswereusedtogetthedifferentLETofions.Allthetestswerecarriedoutinairatroomtemperaturewithnormalincidentbeam.

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简介：Recently,theirradiationeffectsinnanomaterialshavebeenahottopicinnanoscience.Althoughirradiationinduceddamageshavebeenstudyingforalongtime,verylimitedresearchhasbeenperformedonthedamagesinducedbyMeV-energyheavyionsingoldnanowires(NWs).Inthiswork,wereportastudyoftheirradiationeffectsonsinglecrystallinegoldNWs,whicharefabricatedelectrochemicallyintheetchediontracktemplates.Theas-preparedgoldNWsontheAu/CusubstratewerecharacterizedbySEMafterdissolvingthepolycarbonate(PC)template,asshowninFig.1(a).GoldNWswithdiametersfrom20to90nmwerefabricatedtostudythesizedependenceofirradiationdamageinducedbytheheavyions.ToguaranteethatthedifferentNWscouldobtainthesameirradiationfluence,theNWswithdifferentdiametersweremixedtogetherandtransferredtotheTEMgrid,asshowninFig.1(b).

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简介：InfluenceoftheeffectivefermionhexadecapoleforcenewlyincorporatedinamicroscopicsdgIBM-1onspectra,reducedE2andE4transitionmatrixelements(T(E2)sandT(E4)s)intheeven-evenplatinumisotopes(A=192,194,196,198)isinvestigatedintermsofnumericalcalculations.ItisfoundthattheintroducedinteractioncausesonlylimitedmodificationtothespectrumandT(E2)s,apartfromafewexceptions.However,itplaysanessentialroleindescribingE4transitions.Thusinthecasethattheinteractionisincorporatedwithcertainstrength,areasonabledescriptionofalltheE4transitionsintheplatinumisotopesisreachedinthemicroscopicsdgIBM-1incomparingbothtoexperimentaldataandtheresultscalculatedinphenomenologicalbosonmodel.``

简介：基于从一个电离房间的双格子分析导致的信号，在二个格子之间的电子飘移时间被决定，电子飘移速度被导出。波形digitizer被采用从电离房间的二个格子记录脉搏。电子飘移速度为Ar+CH4混合物的八不同比率作为减少的电场E/p的功能被测量。由分析这研究的试验性的数据，试验性的数据的自我一致性被完成，并且为在Ar+CH4混合物的任何比率的精明的电子飘移速度的公式被获得。

简介：ThisworkismainlytostudytheeffectofheavyionirradiationonthedamageofsinglelayerMoS2.ThenumberoflayersofMoS2preparedbyCVD(chemicalvapordeposition)methodwasdeterminedbyopticalmicroscopyandRamanspectroscopy.ThemonolayerMoS2preparedbyCVDunderhighenergy209BiionirradiationwasanalyzedbyRamananalysisandAFMobservation.AndtheresultsarecomparedandanalyzedbeforeandafterthebeamirradiationofsinglelayerMoS2preparedbymechanicalstrippingmethod.

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简介：Weperformfirst-principlecalculationsforthestudyoftheorthorhombicRb2Cd2(SO4)3structure.Electronicenergybands,totalandpartialdensitiesofstatesarereportedandanalysed.Itisfoundthatoxygenatomic2pelectronsstronglyhybridizewithRb/orCd4dandS2pstates,resultingintwo-typeionicgroupswithweakcouplings.Itisshownthatmacroscopicdomainwallsoriginatefromsuchweak-couplingionicgroups,arisingatthecellboundaries.Theasymmetriccationbonds(Rb-OandCd-O)andthesubsequentrotationsoftheS04tetrahedracanleadtothedrivingforceoftheferroelectricbehaviour.Thepredictedpyroelectriccurrenteffectsareobservedexperimentallyintheferroelectricphase.

简介：TheinteractionprocessofionsandplasmasisanimportanttopicinIon-Beam-DrivenHighEnergyDensityPhysicsandInertialConfinementFusionresearch.Duetothestrongnon-lineareffectsandthespecialimportanceinICFresearch,moreandmoreemphasishasbeengiventotheinvestigationsforionbeaminlowenergyrangeand/orforplasmawithhighintensity[1;2].Here,weaddressthenewlymeasuredresultsoftheenergylossbyslowionspenetratingthefullyionizedhydrogenplasmatarget.

简介：AseriesofRbxCs1-xAg4I5(x=0-1)thinfilmsweregrownbyvacuumevaporationonNaCIcrystalsubstratesat350K.Theabsorptionspectraofthesefilmsweremeasuredat80Kinthewavelengthrangefrom240nmto400nm.ItisshownthatsuperionicconductorthinfilmsofquaternarycompoundRb0.5Cs0.5Ag4I5andternarycompoundRbAg415canbeobtainedatx=0.5-0.6andx=0.7-1,respectively.Atx=0.65,thecombinedcompoundfilmofthemixtureof30mol%RbAg4I5and70mol%Rb0.5Cs0.5Ag4I5ispresented.Then,basedonthespectralpositionsoftheA1andA2peaks,wedeterminedthattheRb0.5Cs0.5Ag4I5excitoncouplingenergyRexis0.21eV,theforbiddenzonewidthEgis3.82eVandtheexcitonradiusaexis0.70hm.Furthermore,theionicconductivitiesofsuperionicconductorthinfilmsofRbAg4I5andRb0.5Cs0.5Ag4I5andtheirmixturefilmareinvestigated,respectively,inthetemperaturerange303K-393K.

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简介：Heavyionirradiationattractalargeinterestfortwoapplications:radiotherapyandspaceradiationprotectioninmannedspacemissions.ExposuretoheavyionsradiationresultsinmultipleeffectsthroughDNAdamageinduction.Single-cellgelelectrophoresisorcometassayisknownforitsabilitytodetectDNAdamageatthesinglecelllevelandhasbeenusedforyearstoassessDNAdamage.ItcandetectlowlevelsofDNAstrandbreaksinashorttime,justusingafewsamplecells.DNAdoublestrandbreaks(DSBs)aremeasuredattheneutralcometassaycondition;underthealkalinecometassayconditionbothDNAsinglestrandbreaks(SSBs)andpartDSBsaredetected.Thetwodimensionalcometassayisamodificationofthetwooriginalcometassay,cansimultaneouslydetectDNASSBsandDSBsinthesamehumanspermatozoa.

简介：Amolybdenumdisulfide（MoS2）saturableabsorberwasfabricatedbythermallydecomposingtheammoniumthiomolybdate.ByusingtheMoS2absorber,acompactdiode-pumpedpassivelyQ-switchedTm:GdVO4laserhasbeendemonstrated.AstableQ-switchedlaserwithrepetitionratesfrom25.58to48.09kHzwasachieved.Maximumaverageoutputpowerwas100mWwiththeshortestpulsedurationof0.8μs.Maximumpulseenergyis2.08μJatcenterof1902nm.