Simple Low-Frequency BPM.

Heifets, S. ; Aleksandrov, A.

Technical Information Center Oak Ridge Tennessee

关键词: Beam monitors;    Pipes;    Beam position;    Impedance;    Electromagnetic fields;   

RP-ID  :  DE2008926189

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Detection of the field induced by a beam outside of the beam pipe can be used for the beam diagnostics. A wire in a longitudinal slot in the beam pipe wall can be used as a beam position monitor with a very small coupling impedance avoiding complications of the feed-through. The signal can be reasonably high at low frequencies. We calculate the beam-coupling impedance due to a long longitudinal slot and the signal induced in a wire placed in such a slot and shielded by a thin screen from the beam. Results can be relevant for impedance calculations of the slot to ante-chamber and slots of the DIPs.