Measurement of longitudinal electron beam parameters using indigenously developed streak camera system at Indus-1 synchrotron radiation source

Indus-1 is a 450 MeV synchrotron radiation source (SRS) operational at RRCAT, Indore. A diagnostic beamline utilizing visible portion of wide synchrotron radiation spectrum is used for the measurement of electron beam parameters. Its RF frequency and harmonic number are 31.6 MHz and 2 respectively. Among the five operational user beamlines at Indus-1 SRS visible diagnostic beamline (V-DBL, BL-5) is used for the measurement and study of electron beam parameters at dipole magnet DP-3 in Indus-1 .The bunch length represents the extent of longitudinal distribution of electrons inside the bunch, and bunch centroid position is the temporal position or phase of bunch with respect to accelerating voltage inside RF cavity which are important beam dynamics parameters in an accelerator. For measuring the longitudinal beam profile, bunch length, bunch centroid position (of the order of few tens of picoseconds) etc. of the electron beam, a very high temporal resolution device such as streak camera is required to capture the images of the beam in the time domain. For this purpose, an indigenously developed single shot S-20 streak camera has been developed to capture longitudinal profile of electrons bunches in Indus-1 and installed at V-DBL (BL-5). In this paper various measurements carried out using this indigenously developed streak camera system at Indus-1 SRS are discussed