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| 1 | NIRS的ECR离子源现状(英文)显示文摘Four ECR ion sources have been operated in National Institute of Radiological Sciences(NIRS). Two ECR ion sources supply various ion species for the Heavy Ion Medical Accelerator in Chiba(HIMAC). The 10GHz NIRS-ECR ion source mainly produces C2+ ions for the heavy-ion therapy.Ions of Si,Ar,Fe,Kr and Xe are usually produced by the 18GHz NIRS-HEC ion source for physical and biological experiments.The other two compact ECR ion sources with all permanent magnet configuration have been developed for the new generation carbon therapy facility.One of these,the Kei-source,is a prototype which has been installed to the NIRS-930 cyclotron for axial injection.The other source,Kei2-source,is a demonstration source and utilized for the new generation Linac.In addition,both Kei sources have been used to study fundamental properties. In this paper,present status of the ion sources and recent developments are reported. | M.Muramatsu A.Kitagawa Y.Iwata K.Yamamoto H.Ogawa S.Hojo Y.Sakamoto T.Honma W.Takasugi M.Wakaisami Y.Yoshida T.Kubo Y.Kato S.Biri A.G.Drentje | 2007 | Chinese Physics C2007，31，S1： | 0 |
| 2 | ATOMKI-ECRIS由离子源向等离子体装置的改造(英文)显示文摘In order to extend the capabilities of the ATOMKI-ECRIS it is being transformed into a modified plasma device by changing its three main components with new ones.The cylindrical plasma chamber is replaced by a larger one(ID=10cm,L=40cm).A new NdFeB multi-pole radial trap was designed and pur- chased.The basic configuration is 6-pole,but 8-or 12-pole arrangements can also be formed later.The present microwave source(2000W,14.5GHz)and two additional low-power,wide frequency TWT amplifiers give many opportunities to form plasmas with different sizes and characters.Actually a new facility with two sharply different operation modes is being established.All the modifications are reversible so the transformation of the ECRIS into this new device or back can be easily done. | S.Biri .Fekete I.Iván I.Gál | 2007 | Chinese Physics C2007，31，S1： | 0 |
| 3 | TrapCAD程序的升级(英文)显示文摘The TrapCAD code was developed in the 90s on DOS-platform in order to visualize the magnetic field line structure of ECR and other ion sources and to simulate the movement of individual charged particles in magnetic traps.Recently the code was re-written for Windows and underlied a major upgrading.The paper shows the new features.The spatial and energy structure of the non-lost and lost electrons are studied in a more detailed way for the case of the ATOMKI-ECRIS,as example.Using the datafiles of the lost electrons, their energy distribution is calculated and compared with known X-ray(bremsstrahlung)observations. | S.Biri A.Derzsi .Fekete I.Iván | 2007 | Chinese Physics C2007，31，S1： | 0 |
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