Title :
Diamagnetic loop diagnoses emittance of intense pulse beam
Author :
Mu, Fan ; Liu, Chengjun ; Xia, Liansheng
Author_Institution :
CAEP, Inst. of Fluid Phys., Mianyang, China
Abstract :
The technology of diamagnetic loop diagnosing intense pulse beam is on-line diagnostics. The technology can diagnoses beam emittance and obliquity on-line cooperating with other technology such as three gradient method. In this paper, we introduce theory of diamagnetic loop, design and calibrate diamagnetic loop device. And we diagnose Dragon- I accelerator electron beams radius and emittance. By the DML, average beam radius in the flat of pulse in the !2th accelerator cavity is 17.25mm, which are accordant with the result of CR measuring. Emittance at the exit of accelerator is 2480 π ·mm· mrad.
Keywords :
electron beams; magnetic field measurement; particle beam diagnostics; Dragon-I accelerator electron beams; beam obliquity; diamagnetic loop device calibration; diamagnetic loop device design; diamagnetic loop diagnosis; diamagnetic loop theory; electron beam emittance; electron beam radius; intense pulse beam emittance; online diagnostics; size 17.25 mm; three gradient method; Calibration; Inductance; Magnetic field measurement; Magnetic moments; MTGM; beam radius; diamagnetic loop(DML); emittance; magnetic moment;
Conference_Titel :
High Power Particle Beams (BEAMS), 2008 17th International Conference on
Conference_Location :
Xian
