用于HRIBF的RFQ喷射系统
An RFQ injection system for the HRIBF
摘要：
在橡树岭国家实验室（ORNL）的Holifield放射性离子束设施（HRIBF）中，从正离子源提取的分子离子随后在电荷交换单元中分解，产生具有数百eV能量扩散的放射性离子束（RIB），阻止有效的磁同量异位素分离。为了在电荷交换之前进行磁同量异位素分离，提出了一种多谐波聚束器和一个12 MHz的射频四极杆（Radio Frequency Quadrupole），以补充目前的300 kV注入系统的25 MV串列静电加速器。该探测器将安装在一个可变的高压平台上，以加速质量从10到150 amu的离子。
英文摘要：
At the Holifield Radioactive Ion Beam Facility (HRIBF) at Oak Ridge National Laboratory (ORNL), molecular ions extracted from a positive ion source and subsequently broken up in a charge exchange cell produce Radioactive Ion Beams (RIBs) with several hundred eV energy spread, preventing effective magnetic isobar separation. In order to perform magnetic isobar separation prior to charge exchange, a multi-harmonic buncher and a 12 MHz RFQ (Radio-Frequency Quadrupole) is proposed to supplement the present 300 kV injection system for the 25 MV tandem electrostatic accelerator. The RFQ will be mounted on a variable high voltage platform to accelerate ions with masses from 10 to 150 amu.
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