RE-COMMISSIONING OF THE FAR-INFRARED FREE ELECTRON LASER FOR STABLE AND HIGH POWER OPERATION AFTER THE RENEWAL OF THE L-BAND LINAC AT ISIR, OSAKA UNIVERSITY
RE-COMMISSIONING OF THE FAR-INFRARED FREE ELECTRON LASER FOR STABLE AND HIGH POWER OPERATION AFTER THE RENEWAL OF THE L-BAND LINAC AT ISIR, OSAKA UNIVERSITY
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大阪大学 ISIR 更新 L 波段直线加速器后，重新调试远红外自由电子激光器以实现稳定和高功率运行
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Renewed Linac
中科院分区：
文献类型：
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作者：
R. Kato;S. Kashiwagi;T. Igo;Y. Morio;G. Isoyama;Renewed Linac
大阪大学科学与工业研究所(ISIR)的远红外自由电子激光工作在32至150微米的波长范围内，自1998年以来一直处于暂停状态，目前正在调试中，以实现稳定和高功率运行。自由电子激光是在1978年建造的L波段电子直线加速器的基础上进行的，但为了提高工作的稳定性和重复性，以及用于自由电子激光的长脉冲工作，对其进行了大量的改造。利用前馈控制系统成功地调试了长脉冲模式，该模式可以将1.3 GHz射频功率在宏脉冲中的幅值和相位稳定在幅度0.5%、相位0.3o以内。除了最近引入的基于边缘聚焦方案的强聚焦摇摆器外，自由电子激光系统与以前相同。自由电子激光实验已经准备好了，我们正在等待下一次的机器时间和激光。
The far-infrared FEL at the Institute of Scientific and Industrial Research (ISIR), Osaka University, which was operated in the wavelength region from 32 to 150 µm and was suspended since 1998, is being commissioned for stable and high power operation. The FEL is based on the L-band electron linac constructed in 1978, but it was largely remodelled for higher stability and reproducibility of operation as well as for long pulse operation for FEL. The long pulse mode has been successfully commissioned using a feed forward control system, which can stabilize the amplitude and the phase of the 1.3 GHz RF power in the macropulse within 0.5 % in amplitude and 0.3o in phase. The FEL system is the same as before except for the strong focusing wiggler based on the edge-focussing scheme, which was recently introduced. The FEL experiment is all set up and we are waiting for the next machine time and lasing.