Indus-2 Synchrotron Radiation Source: current status and utilization

Abstract

Indus Synchrotron Radiation complex at Raja Ramanna Centre for Advanced Technology at Indore, India houses two synchrotron radiation sources: Indus-1 and Indus-2. Indus-1 is a 450 MeV source emitting in VUV/ soft x-ray region and operating at 100 mA since 1999. Indus-2 is designed for 2.5 GeV, 300 mA operation and is operating at 2 GeV and 100 mA since March 2010 in 24x7 mode and a beam lifetime of about 22 hrs has been achieved. Operation at 2.5 GeV and 100 mA has recently been demonstrated with the addition of in-house developed solid state RF amplifiers. Indus-2 can accommodate 21 bending magnet (BM) and 5 insertion device (ID) beamlines. Sixteen BM beamlines have been planned and six BM beamlines namely i) Angle Dispersive XRD ii) Energy dispersive XRD iii) Energy dispersive EXAFS iv) Soft and deep x-ray lithography v) X-ray fluorescence micro-probe and vi) X-ray photoelectron spectroscopy beamlines have been commissioned. These are being used by researchers from different universities, national institutes and laboratories for carrying out several investigations. Two more beamlines namely 'Grazing incidence x-ray scattering' and 'Protein crystallography' are nearing commissioning. A number of materials research related problems have been investigated using these beamlines and several papers have already been published. Here we will report on the current status of the source, details of the beamlines already operational, beamlines to be commissioned soon and several up-gradation schemes that are being planned. Five IDs consisting of two soft x-ray planar undulators, one superconducting wavelength shifter / wiggler, one APPLE II soft x-ray helical undulator and one hard x-ray undulator will be installed during the next few years. Three new ID based beamli-nes for Atomic and Molecular physics, Angle integrated / Angle resolved PES and Magnetic Circular Dichroism experiments will be commissioned.