论文部分内容阅读
强流束加速结构需将射频四极加速器(RFQ)输出的50mA、3MeV的质子束加速到20MeV,束流平均流强大于1mA。考虑到加速束流是脉冲电流达50mA的强流束,在束流加速过程中最关键的问题是保证束流稳定且束流损失小。强流束加速结构采用直线漂移管加速腔体(DTL),工作频率325MHz,可采用足够磁场强度的四极磁铁、
The strong beam acceleration structure needs to accelerate the 50mA, 3MeV proton beam outputted by the radio frequency quadrupole accelerator (RFQ) to 20 MeV, and the average beam current is greater than 1mA. Considering that the accelerated beam is a strong beam with a pulse current up to 50mA, the most critical issue in beam acceleration is to ensure that the beam is stable and the beam loss is small. Strong beam acceleration structure using linear drift tube acceleration chamber (DTL), the operating frequency of 325MHz, can be sufficient magnetic field strength of the quadrupole magnet,