Beam lines of the 1.7 MV Tandetron accelerator

Rapid Thermal Annealing Furnace

Low Temperature Photo Luminescence Spectrometer

 

¨ High Performance Computing Cluster

¨ Beam lines of the 1.7 MV Tandetron accelerator

¨ Low Temperature Photo Luminescence Spectrometer

¨ UHV-Scanning Tunneling Microscope

¨ Rapid Thermal Annealing Furnace

¨ Ion Beam Milling

¨ XTEM Sample Preparation Facility

XTEM Sample preparation facility

High Performance Computing Cluster

UHV-Scanning Tunneling Microscope

Gentle mill

Dual Beam
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FACILITIES
Text Box: PUBLICATIONS Text Box: MEMBERS Text Box: AWARDS Text Box: PHOTOS Text Box: MPD Text Box: MSG Text Box: IGCAR Text Box: Cost effective scalable LINUX HPC cluster has been built in-house and is centered around 64, 1U rack mountable Dual Xeon servers interconnected by a dedicated Gigabit Ethernet network giving a combined computational power of 400 Gflops Text Box: There are three beamlines attached to the 1.7 MV Tandetron Accelerator Irradiation Beamline: Typical vacuum: 1E-7 mBar Uniform Implantation of all ions except inert gas ions High Temperature implantation: upto 1100 K — beam current measurement using a aFaraday cup behind the sample holder Ion Beam Analysis (IBA) beam line: For carrying out RBS, IBM geometry with a provision for glancing incidence measurements Nuclear reactin analysis: Using protons upto 3.4 MeV Ion channeling experiments: Room temperature using protons and alpha particles — simultaneous RBS and PIXE/NRA channeling experiments can be performed UHV Beamline / implantation chamber: Typical vacuum: UHV implantation chamber 1E-9 mBar during implantation High temperature irradiation:1400 K Quick sample change by load lock arrangement Text Box: Ab initio Tools VASP (Abinitio MD and Electronic Structure: Pseudo potential Method), Wien (LAPW - Full Potential), LMTO, ABINIT, SIESTA CPMD (Car-Parinello MD) CASINO Text Box: Commercial UHV- scanning tunneling microscope (STM 150 Aarhus) is from Specs GmbH. It can be operated in temperature range 90-400K. Other than the constant current and constant height topographic imaging mode, it can be operated in spectroscopy mode to acquire current-voltage data. Possible modes of operation: Topographic imaging in Constant current and Constant height mode Spectroscopy mode to collect current-voltage and current-distance data Double scans like topography and tunneling current, topography and work-function, topography with varying tunneling voltage and tunneling current Multiscan mode with different tunneling parameters is also present. Text Box: Photoluminescence Spectrometer is configured in the backscattering geometry and dispersion with three set of gratings in a double subtractive triple monochromator of Juvin-Yvon T64000 spectrograph Excited with UV [He-Cd (325 nm)] this setup collects light in the backscattered configuration. Dispersion is done with three sets of gratings in a double subtractive triple monochromator (Juvin-Yvon T64000 spectrograph). PL spectra can be recorded for a wide range of 300-1500 nm Excitation: He-Cd CW Laser (325 nm) Air cooled Ar-Ion Laser Detectors: LN2 cooled ‘back thinned’ CCD (QE ~80%) [300-950 nm] Peltier cooled InGaAs (750-1500 nm) Sample Temperature: 4 K to room temperature Text Box: Specifications: Tunneling Current Setpoint : 1 pA to 50 nA Gap Voltage : ± 0.5 mV to ± 10 V Stability < 6pm RMS in suitable space without damping Temperature at the sample : 90 K-400 K Maximum Scan Range : 1.5 µm Scan speed upto 10,000 pixels/second in constant current mode and 25,000 pixels/second in constant height mode

Facilities