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4篇 您的检索式:作者名="S.Gammino"
    题名 作者 年代 出处 被引量
1MS-ECRIS离子源进展报告(英文)显示文摘The design of each component of the Multipurpose Superconducting ECR Ion Source(MS-ECRIS) has been completed and some items are ready.The magnets and the cryostat are under construction at ACCEL and the commissioning is scheduled for March 2007.The mechanical have been optimized and their construction is under way;the microwave system is under refurbishment and the 65kV power supply is available and upgraded for afterglow operations.Pumping and extraction system were adapted to the EIS testbench of GSI Darmstadt.The description of each part will be given in the paper along with a schedule of the forthcoming development and experiments.G.Ciavola S.Gammino L.Celona F.Consoli G.Gallo D.Mascali S.Passarello M.Cavenago A.Galatà P.Spaedtke K.Tinschert H.Koivisto P.Suominen O.Tarvainen C.Baruè M.Lechartier R.Leroy J.P.M.Beijers S.Brandenburg H.R.Kremers D.Vanrooyen D.Kuchler D.Hitz P.Seyfert L.Schachter S.Dobrescu 2007Chinese Physics C2007,31,S1:0
2第三代和第四代ECR离子源:未来展望(英文)显示文摘Since the end of’70s the Electron Cyclotron Resonance ion sources(ECRIS)allowed to increase both the energy and intensity of the beams available from different types of accelerators;perspectives for the future are still optimistic.It is commonly agreed that only some ECRIS parameters have been fully exploited, whether some others are still not efficiently used,or not understood.The developments in the last 20 years have followed the so called Standard Model and the availability of higher frequency generators and higher field magnets have permitted relevant increase;the use of Nb3Sn may extend the range.The availability of new schemes of microwave coupling to plasma is promising,and the focusing of the electromagnetic wave towards the chamber axis may improve the density of warm electron population.The paper will also describe some critical point of the 3rd generation ECRIS(including technological troubles and limits)and the scenario for future 4th generation ECRIS,operating at f=56—75GHz,to be built in 2010s.S.Gammino 2007Chinese Physics C2007,31,S1:0
3微波技术对ECR离子源性能的影响(英文)显示文摘The coupling between microwave generators and ECR ion sources(ECRIS)is a key point for the design of the new generation ECRIS as well as for the optimization of the existing ones.The electromagnetic characterization of the plasma chamber where the ionization phenomena take place is a fundamental starting point to understand and model such process.In such effort the complex structures of the injection and extraction flanges together with the large dimensions of the chamber and the high frequencies that are typically used make impossible an analytical solution and also create great difficulties in the modelling even with state-of- art electromagnetic simulators(CST,HFSS),In the following paper the results of some numerical calculations for the optimum plasma chamber excitation will be presented along with the experimental measurements carried out with the SERSE ion source at INFN-LNS.A campaign of measurements is also planned to further investigate the microwave coupling and the mode excitation,which determines the efficiency of the ECR plasma heating.L.Celona F.Consoli S.Barbarino G.Ciavola S.Gammino F.Maimone D.Mascali L.Tumino 2007Chinese Physics C2007,31,S1:0
4Generation of Nonlinear Force Driven Blocks from Skin Layer Interaction of Petawatt-Picosecond Laser Pulses for ICF显示文摘The discovery of the essential difference of maximum ion energy for TW-ps laser plasma interaction compared with the 100 ns laser pulses led to the theory of a skin layer model where the control of prepulses suppressed the usual relativistic self-focusing.The subsequent generation of two nonlinear force driven blocks has been demonstrated experimentally and in extensive numerical studies where one block moves against the laser light and the other block into the irradiated target.These blocks of nearly solid state density DT plasma correspond to ion beam current densities exceeding 10^10 A/cm^2 where the ion velocity can be chosen up to highly relativistic values.Using the results of the expected ignition of DT fuel by light ion beams,a selfsustained fusion reaction front may be generated even into uncompressed solid DT fuel similar to the Nuckolls-Wood scheme where 10 kJ laser pulses produce 100 MJ fusion energy.This new and simplified scheme of laser-ICF needs and optimisation of the involved parameters.HeinrichHora CangYu HeXiantu ZhangJie F.Osman J.Badziak F.P.Boody S.Gammino R.Hoepfl K.Jungwirth B.Kralikova J.Kraska L.Laska LiuHong G.H.Miley P.Parys PengHansheng M.Pfeifer K.Rohlena J.Skala Z.Skladanowski L.Torrisi J.Ullschmied J.Wolowski ZhangWeiyan 2004Plasma Science and Technology2004,6,1:0
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