Slow extraction of beam from synchrotrons or storage rings as required by many fixed target experiments is performed by controlled excitation and feeding of a structural lattice resonance. Due to the sensitive nature of this resonant extraction process, temporal structure of the extracted beam is modulated by the minuscule current fluctuations present on the quadrupole magnet power supplies. Such a modulation leads to pile-up in detectors and significant reduction in accumulated event statistics. This contribution proposes and experimentally demonstrates that by introducing a further modulation on quadrupole currents with a specific amplitude and frequency, the influence of inherent power supply fluctuations on spill is mitigated. The slow extraction beam dynamics associated with this method are explained along with operational results.

中文翻译：

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使用与过渡时间有关的调谐调制来减少慢提取光束溢出的波动

根据许多固定目标实验的要求，从同步加速器或存储环中缓慢提取光束是通过控制激发和馈入结构晶格共振来进行的。由于这种共振提取过程的敏感性，提取的光束的时间结构受到四极磁体电源上存在的微小电流波动的调制。这种调制导致检测器中堆积，并大大减少累积的事件统计信息。该贡献提出并通过实验证明，通过对具有特定幅度和频率的四极电流进行进一步调制，可以减轻固有电源波动对泄漏的影响。解释了与该方法相关的缓慢提取束动力学以及操作结果。