学科分类
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8 个结果
  • 简介:ThreesynchrotronradiationbeamlineshavebeenbuiltonDAΦNE,theFrascatielectron-positronaccelerator.ItisPossibletomonitorandcontrolalltheelementsonthebeamlinesusingamodularnetworkdistributedI/OsystembyNationalInstrunments(FieldPoint)withBridgeVIEW/LabVIEWprograms,Twoofthesebeamlineshaveradiationsafetyproblemssolvedbytwoindependentandredundantsystems,usingmechanicalswitches,andS7-200PLC'sbySiemens.Inthisarticleoursolutionwillbedescribedindetails.

  • 标签: 计算机控制 同步辐射束 DAΦNE
  • 简介:TheparametricoptimizationoftheNe-CuBrUVlaserexcitedbylongitudinalpulseddischargeisanalysedbyusingaself-consistentkineticmodel.Consistentcharacteristicsoftheoptimizationprocessareobtainedbycomparingwiththeexperimentalresults.Simulationresultsshowthatneonionscomeintobeingalongwithconsiderabledepletionoftheground-statecopperatoms.Andtheoptimizationofthedischargetubediameteristhetradeoffbetweenthespecificoutputphotondensityandthetotalactivevolume.Boththeoptimalneongaspressureandtheoptimalreservoirtemperatureresultfromthebalancebetweentheneoniondensityandtheground-statecopperatomdensitytoarriveatamaximumoftheirproduct.

  • 标签: 溴化亚铜 输出功率 紫外激光 动力学分析 NE 参数优化
  • 简介:Multi-nucleontransferreactionplaysanimportantroleinthesynthesisofnewnuclides[1].Inthereactionsof20Ne+209Bi,someshort-livednucleiproducedbytransferring26nucleonswerediscovered.Theexperimentof20Ne+209Biwasperformedatgas-filledrecoilseparatorinLanzhou[2].A400g/cm2thick209Bitargetwasbombardedwith20NebeamdeliveredbyacceleratorHIRFL.

  • 标签: Multi-nucleon TRANSFER REACTIONS
  • 简介:以由Lewenstein模型的单个原子的导致的偶极子时刻,我们在场宏观的高顺序的泛音产生从混合他和有由解决三维的麦克斯韦泛音的方程的不同混合比率的Ne气体成立了。然后我们由瓦格纳等显示出混合明确的表达的有效性。[Phys。加快。一76(2007)061403(R)]在宏观的反应水平。最后,用适合的最少的广场,我们在Kanai等由明确的表达检索短轨道的电子回来时间。[Phys。加快。Lett。98(2007)153904]当煤气的喷气被放在激光以后时,集中。

  • 标签: 高次谐波产生 气体喷射 混合物 时间 返回 电子