Title :
Spectral fluctuations of incoherent radiation and measurement of longitudinal bunch profile
Author :
Zolotorev, M.S. ; Stupakov, G.V.
Author_Institution :
Fusion Res. Div., Lawrence Berkeley Nat. Lab., CA, USA
Abstract :
A method for measurement of ultrashort beam current profile Ib(t) is proposed that is based on detecting fluctuations of the spectral intensity P(ω) of single bunch incoherent radiation. We show that the variance of the Fourier transform of the spectrum is proportional to the convolution function of the beam current. After the convolution function is found, using phase retrieval technique one can restore the shape of the pulse in many practical cases
Keywords :
Fourier transforms; fluctuations; particle beam bunching; particle beam diagnostics; Fourier transform; convolution function; incoherent radiation; longitudinal bunch profile measurement; phase retrieval; single bunch incoherent radiation; spectral fluctuations; spectral intensity; ultrashort beam current profile; Charge coupled devices; Convolution; Fluctuations; Length measurement; Linear accelerators; Particle beams; Physics; Pulse measurements; Radiation detectors; Shape measurement;
Conference_Titel :
Particle Accelerator Conference, 1997. Proceedings of the 1997
Conference_Location :
Vancouver, BC
Print_ISBN :
0-7803-4376-X
DOI :
10.1109/PAC.1997.751148
