Diamagnetic Loop Diagnoses Emittance of Intense Pulse Beam

摘要

Emittance is one of the most important parameters describing electron beam of an accelerator. The technology of diamagnetic loop (DML) diagnosing intense pulse beam is a kind of on-line diagnostics. Modified Three Gradient Method (MTGM) is based on three gradient type measurements of the beam cross-section and on the subsequent use of a computer code incorporating the K-V equation. The technology of DML can diagnose emittance on-line cooperating with MTGM. In this paper, we introduce the theory of diamagnetic loop, design and calibrate diamagnetic loop device. And we diagnose emittance at the exit of the 2MeV injector.