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NSC  Annual Report
2002-2003
(Available in .PDF formats ) 
                Director's Report
Chapter 1.   ACCELERATOR
Chapter 2.   ACCELERATOR AUGMENTATION PROGRAMME
Chapter 3.   RESEARCH SUPPORT ACTIVITIES
Chapter 4.   EXPERIMENTAL FACILITIES IN BEAM HALL
Chapter 5.1 RESEARCH ACTIVITIES (Nuclear Physics)
Chapter 5.2 RESEARCH ACTIVITIES (Materials Science)
Chapter 5.3 RESEARCH ACTIVITIES (Radiation Biology)
Chapter 5.4 RESEARCH ACTIVITIES (Atomic Physics)
Chapter 6.   ACADEMIC ACTIVITIES

CONTENTS ( Details of Chapters including subsections / page nos. given below )

Chapter 1.   ACCELERATOR   ( click for Chapter 1 )
 

1.1 Operational Summary 1
1.2 Maintenance and Development Activities 2
1.3 Ion Source 3
1.4 Operation and Maintenance of Beam Pulsing System 4
1.5  Accelerator Mass Spectrometry (AMS) 4
 
     1.5.1 Off-line testing of the Wien filter as procured from Danfysik 4
     1.5.2 Testing of BeO samples as processed from Mn-nodules using AMS 5
 

Chapter 2.   ACCELERATOR AUGMENTATION PROGRAMME  ( click for Chapter 2 )
 
2.1  LINAC      7
2.1.1  Superconducting Resonator Fabrication Facility - SuRFF      7
2.1.2 Indigenous Fabrication of Niobium Resonator      9
2.1.3 Installation and Testing of the High Energy Sweeper 10
2.1.4 Status of Simple Test Cryostat facility 12
2.1.5 Linac Beam Line 13
2.1.6  Linac Cryostat 13
2.1.7 Development of High Energy Sweeper Controller 13
2.1.8 Optimization of Multi-harmonic Buncher and Testing of High Energy Sweeper with DC and Bunched Beams 14
2.1.9 Upgradation of 6MHz, 500 Watts RF Amplifier for H.E. Sweeper 14
2.2     Cryogenics
2.2.1 Cryostats 15
2.2.2 Cryogen Distribution line 16
2.2.3 Helium purifier & gas analysis setup 17
2.2.4 Experiments on MLI set up 18
2.2.5 Cryogenic facility 18
2.2.6 Miscellaneous work 19
2.2.7 A VME based Cryogenic Data Acquisition & Control System 19
2.3 RF Electronics 22
2.3.1 Status of 97 MHz Power Amplifier for LINAC 22
2.3.2 Status of Resonator Controller Modules 23
2.4 Beam Transport 23
2.4.1 Quadrupole Magnets 23
2.4.2 High Field steerers 24
2.4.3 IGOR modules 24
2.4.4 Switch gear for magnets in LINAC beam line 24
2.4.5 Switch Mode Power Supply for Superconducting  Solenoid magnets 24
2.4.6 Super Conducting Magnet Power Supply Programmer 25
2.4.7 Persistent Switch Heater Power Supply 25
2.4.8 High Current High Stability Magnet Power supply 25 (200A/50V, 5PPM/8 hrs)
2.4.9  Faraday Cup Controller 25
2.4.10 Spark Protection Modules 26
2.4.11 SMPS Controller 26
2.4.12 PSTV Controllers 26
2.4.13 Extension of Zero degree Beam line 26
2.4.14 Development of 43 kVA H-class Air Cooled Linear Voltage Regulator & six phase Double Delta Transformer for 300 A, 100 V DC Power Supply 26
2.5 Low Energy Ion Beam Facility (LEIBF) 27
 
2.6 High Current Injector 31
2.6.1 Design of a High Temperature Superconducting Electron Cyclotron Resonance Ion Source for the High Current Injector of LINAC 31

Chapter 3.   RESEARCH SUPPORT ACTIVITIES   ( click for Chapter 3 )
 
3.1 High Vacuum Laboratory 34
3.1.1 Beam Line Maintenance and Installation 34
3.1.2 Fast Valve (BLV 02-1) Replacement 35
3.1.3 LIBR Chamber Recommissioning 35
3.1.4   Design and Fabrication of Diesets 35
3.2 Maintenance of Magnets and Power Supplies 36
 
3.3 Detector Development Laboratory 36
3.3.1 Gas Ionization Chamber 37
3.3.2 Fast Timing Amplifiers 37
3.3.3 Auxilliary Detectors 37
3.3.4 Discrete Delay Line MWPC 38
3.3.5 Precise Gas Pressure control system for Focal Plane Detectors 38
3.3.6 Local Data Acquisition at HIRA focal plane 38
3.3.7 Timing PPAC 39
3.4 Target Development Laboratory 39
 
3.5 Electronics & RF Laboratory 42
3.5.1 Development of PCI Card 42
3.5.2 Development of CAMAC Modules 42
3.5.3 Electronics Activity related to INGA at NSC 43
3.6 Electrical Group Activities 45
3.6.1 Stabilised Power Arrangement 46
3.6.2 UPS Systems 46
3.6.3 Power Factor Compensation 46
3.6.4 Maintenance of  Phase-I & II  Electrical  Installations 46
3.6.5 Surveillance Video Cameras 47
3.6.6 Energy Saving 47
3.6.7 Beam Hall-II 47
3.6.8 Beam Hall-II Stores 47
3.6.9 Development of Remote Control System for Helium Compressors & Central Control Room for Cryogenics 47
3.6.10 Harmonic Analysis of Clean Power Distribution System of NSC 48
3.6.11 Phase-II  Part-II  Installations 49
3.7 Computer and Communications 49
3.7.1 Internet and mail 49
3.7.2  Central computing facility 49
3.7.3  Desktop computing and local networks 50
3.8 Air Conditioning, Water System and Cooling Equipments 50
3.8.1 Central AC Plant 50
3.8.2 Water Systems 51
3.8.3 Cooling Equipment 51
3.9 Mechanical Workshop 51
 
3.10 Health Physics 56
3.10.1 Development of nano-phosphor 57
3.10.2 Radon Monitoring in the water & Indoor air 58
3.10.3 Radiation Shielding Calculation with PACE & MCNP code 59
3.10.4 Shielding Calculations for Modified Plan of BH-II 59
3.11 Civil Works 60
 
3.12 SF6 Gas Storage & Gas Handling System, Compressed Air System, Mechanical Pumps and Material Handling Equipments 61
 
3.13  Data Support Laboratory 63
3.13.1  Current Amplifier 63
3.13.2 Calibrator Module for CANDLE data acquisition setup 63
3.13.3 Current Integrators 64
3.13.4 Four Channel 12 Bit Peak Measuring ADCs 64
3.13.5 Servicing and Maintenance 64
3.13.6 Electronic modules acquired for data acquisition resource pool 64

Chapter 4.   EXPERIMENTAL FACILITIES IN BEAM HALL ( click for Chapter 4 )
 
4.1 General Purpose Scattering Chamber (GPSC) 66
4.1.1 Modification in Scattering Chamber 66
4.1.2 Array of Neutron Detectors (AND) 66
4.1.3 Fabrication of Pulse Shape Discrimination module for Neutron-Gamma separation 67
4.1.4 Performance of 8 Channel Peak sensing 4K ADC-CAEN C420 69
4.1.5 Developing extended resolution from a 12 bit ADC 69
4.1.6 Experiments conducted in GPSC 70
4.2 Gamma Detector Array  (GDA) 71
4.2.1 Experiments done using GDA beam-line 71
4.2.2  Large Gamma Array 72
4.2.3 HIRA-INGA system at NSC 74
4.2.4 Automatic Liquid Nitrogen filling System for Clover Ge Detectors 79
4.2.5 Simulation study of a Clover gamma ray detector 80
4.3 Heavy Ion Reaction Analyzer (HIRA) 83
4.3.1  New focal plane chamber of HIRA 85
4.3.2  Development of a Large Area Telescopic Detector System for Transfer Reaction Angular Distribution Measurements 86
4.3.3  In Vacuum Transfer System for 7Be+7Li Scattering Experiment 89
4.3.4  Hybrid Recoil Mass Analyser (HYRA) 91
4.4 Materials Science Facility 94
4.4.1 Synthesis of semiconductor nanocrystalline powders and thin films 95
4.4.2 Studies on nc-ZnO/SiO2 films 96
4.4.3 Structural And Magnetic Studies of NiMn0.05TixMgxFe1.95-2xO4 96
4.4.4 Performance of the Large Area two dimensional Position Sensitive Detector Telescope (LAPSDT) developed for Material Analysis at NSC 98
4.5  LIBR Beam Line 100
4.5.1 Status of LIBR Beam Line for Beam-Foil Experiments 100
4.6 Radiation Biology Beam Line 102
4.6.1 Status of the Radiation Biology Beam Line 102
4.6.2 Status of the Molecular Radiation Biology Laboratory 102

Chapter 5.   RESEARCH ACTIVITIES 
5.1 Nuclear Physics 103     ( click for Chapter 5.1 )
5.1.1  Investigation of the shears mechanism in 112Sb 104
5.1.2 In  beam  g-ray  spectroscopy  of  125,126Cs 107
5.1.3 Spectroscopy of Light Neutron Rich Nuclei (35P, 36S, 34Si..) using the nucleon transfer in Near Barrier & Sub-Barrier Heavy Ion Reactions 108
5.1.4 Study of High Spin States In 138Ce 110
5.1.5 Study of n-p interaction in N = Z Nuclei in mass 80 region 112
5.1.6 Structure studies of neutron rich nuclei in mass 100 region 116
5.1.7 Spectroscopy of Ar and K isotopes in A=40 region 118
5.1.8 Investigations of low and high spin states of 134La 120
5.1.9 New measurement of astrophysical S17 factor from d(7Be,8B)n at Ecm=4.4 MeV 123
5.1.10  First measurement of Elastic scattering of the d(7Be,7Be)d system at ECM=4.3 MeV using kinematics coincidence 127
5.1.11 Elastic Scattering of 7Be+7Li Experiment 129
5.1.12 Change of 7Be decay rate in C60 fullerene: A new tool for studying atomic cluster 133
5.1.13  Neutron evaporation as a probe of entrance channel effects in the heavy ion induced fusion reactions 138
5.1.14 Energy and Time Response of Stilbene Scintillator for Proton Energy Ranging from 5-25  MEV 139
5.1.15  Mass Distribution Study of spherical  nuclei 140
5.1.16 Fission Fragment Anisotropies In The  12,13C + 235U System  at Near and Sub Barrier Energies 140
5.1.17  Complete and Incomplete Fusion in 16O+159Tb and 16O+169Tm Systems Below 7MeV/nucleon 141
5.1.18  Complete and Incomplete Fusion Reactions in 12C + 59Co via Excitation functions and Recoil Range Measurements 143
5.1.19  Measurement of the Nuclear g-Factor of 9/2- and 21/2- Isomeric States in 175Ta 146
5.2 Swift Heavy Ions in Materials 149     ( click for Chapter 5.2 )
 
5.2.1 Electronic Sputtering from Semiconducting HOPG: A Study of Angular Dependence 150
5.2.2 Formation of Au0.6Ge0.4 Alloy Induced by Au-Ion Irradiation of Au/Ge Bilayer 152
5.2.3 Swift Heavy Ion Induced Interface Modification in Ni/Ge 153
5.2.4 Study of swift heavy ion irradiation effects in metal/Si systems 156
5.2.5 Mixing in Cu/Ge system by swift heavy ions 159
5.2.6 Mixing Induced by Swift Heavy Ion Beam at (Ti, Ni) / Si Interface 161
5.2.7 Mixing in Au/Si system by nuclear energy loss 162
5.2.8 UV-VIS and Photoluminescence (PL) Characterization of Ag Nanoparticles Doped Glasses prepared by Ion Implantation/Ion Exchange Methods 164
5.2.9 Controlled Growth of Silicon nanocrystals in SiO2 Matrix using MeV Ag Ion Irradiation 167
5.2.10 Effect of  Swift Heavy Ion  Irradiation on Doped Nanoparticles of Fe2O3/TiO2 for Photoelectrochemical  Splitting of Water 169
5.2.11  Ion Beam Induced Modification of Lattice Strains in In0.1Ga0.9As/GaAs system 171
5.2.12 Swift heavy ion induced strain in a lattice matched superlattice 173
5.2.13 Lattice Strain Measurements using Automated High Energy Channeling Facility at NSC 175
5.2.14 Investigations on High energy Sn Irradiation induced effects in GaN 177
5.2.15 Irradiation effect on dielectric properties of NiMn0.05Tix(Zn2+, Mg2+)xFe1.95-2xO4 ferrites thin films 178
5.2.16 Mössbauer studies of 190 MeV Ag ion irradiated NiMn0.05TixMgxFe1.95-2xO4 ferrite 180
5.2.17 Characterization of Zn and Mg Substituted Nickel Ferrite Thin Film using Elastic Recoil Detection Analysis 182
5.2.18 Oxygen Content Meaurement and Compositional Analysis of 190 MeV Au14+ Ions Irradiated Li-Mg Ferrite Thin Films 183
5.2.19 In-situ Resistivity Measurement of Nanoferrite Li-Mg films Irradiated by 190 MeV Au14+ Ions 184
5.2.20 Mössbauer Studies on Irradiated Nanosized Mg1.0Mn0.1Fe1.9-xInxO4 (x = 0, 0.3, 0.6, 0.9) 186
5.2.21 Conversion Electron Mössbauer Spectroscopy Studies of Irradiated Li-Mg Ferrite Thin Film 187
5.2.22 Study of Swift Heavy Ion Beam Irradiation Effects On Oxygen Stoichiometry Of La-2125 Type Superconducting Thin Films By Elastic Recoil Detection Analysis 189
5.2.23 Low temperature resistivity study in 50 MeV Li3+ irradiated La0.7Pb0.3MnO3 190
5.2.24 Effect of 100MeV Oxygen Ion Irradiation on Hole Doped CMR Material 191
5.2.25  Effect of 50 MeV Li3+ Ion Induced Irradiation on Single Crystals of Hexagonal Ferrite and Rare Earth Orthoferrite 193
5.2.26  Interesting aspects of Li3+ irradiated Bi-HTSC 194
5.2.27 Swift Heavy Ion Induced Modifications in Ferroelectric Thin Films and Relaxors 195
5.2.28 Influence of High Energy Ion Irradiation on Field Emission Characteristics of CVD Diamond Thin Films 197
5.2.29 Phase Transformations in Thin Films of C60 Irradiated with Swift Heavy Ions 198
5.2.30  Physical and Chemical Response of 50 MeV Li³+ Ion Irradiated Blended Polymer 200
5.2.31 Effects  of  High  Energy (MeV)  Ion  Beam  Irradiation  on Polyethylene Teraphthalate(PET) 204
5.2.32 Study of Chemical Modification Induced by 120 MeV Silicon Ions in Polypropylene 205
5.2.33 Optical Study of Poly (Ethyleneterphthalate) Irradiated with Different Energies of Swift Heavy Ions of Silicon 207
5.2.34 Effect of Si28 Ion-Beam Irradiation on Natural Rubber and Carboxylated Styrene Butadiene Rubber Latex Blends 209
5.2.35  Dielectric Behaviour of 100 MeV Ni58 Ion Irradiated Kapton-H Polyimide Film 210
5.2.36  Photo Conduction in 75 MeV Oxygen Ion Irradiated Kapton-H Polyimide 212
5.2.37  Investigation of Swift Heavy Ion Irradiation Effects on Ionic Conduction in P(VDF-HFP)-LiClO4 Polymer Electrolytes 214
5.2.38  Gas permeability studies of 100 MeV Si8+ ion irradiated polymers 216
5.2.39 Luminescence in Sapphire Induced by Swift Heavy Ion Irradiation 217
5.2.40 Latent track creation in fused silica by 200 MeV silver beam 219
5.2.41 On-Line Ionoluminescence, in-situ Photoluminescence and off-line Thermoluminescence Studies in Kyanite 220
5.2.42 Swift Heavy Ion Beam Induced Luminescence Studies of Color Centers in PSL and FED Phosphors 221
5.2.43  Energy Loss of Heavy Ions in Gases 223
5.2.44  Transverse Cooling of Channeled Ions 224
5.2.45  Possibility of Online observation of ion beam mixing using LAPSDT based ERDA at NSC - A very initial indication 226
5.2.46 Heavy Ion Testing of VLSI Devices 227
5.2.47 Electronic sputtering studies of LiF thin films 230
5.3 High LET Radiation Biology Research 233    ( click for Chapter 5.3 )
5.3.1 Expression of NF-kB and ERK following Heavy Ion Irradiation 233
5.4 Atomic Physics Research 239      ( click for Chapter 5.4 )
5.4.1 Novel analysis of beam-foil and beam-two foil data from He-like V 
5.4.2   Lifetime of 1s2p2s 4P5/2  level in Li-like 48Ti using Beam Two-foil Experiment 241
5.4.3  L X-ray production cross-sections for 57La, 58Ce, 60Nd & 62Sm by 30-60 MeV C4+ & O5+ ions 243

Chapter 6.   ACADEMIC ACTIVITIES    ( click for Chapter 6 )
 
 
6.1 Pelletron Beam Utilization By Users 247
6.1.1 Pelletron Beam Time Utilization and Experiments performed (April 2002-March 2003) 247
6.1.2 List of Users Family 249
6.2 M.Sc. Orientation Programme 253
6.3 Library 254
6.3.1  Integrated Library System 255
6.4 The Ph.D. Teaching Programme at NSC 256
6.5 Academic Activities Held in 2002-2003 256
6.6 Calendar of Events: 2003 257
6.7 List of Seminars conducted in the year 2002-2003 258
6.8 List of Publications (2002-2003) 260
6.9 List of Technical Reports / Technical Memos Submitted for the Year 2002-2003 265

 

 
 

Appendix I - Committees 270

Appendix II - NSC Personnel 277      

Appendix III - List of Users 280     
 

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