Technical exchange of Gamma irradiator security and alternative technologies meet

In my last attended meeting at Westin, Mumbai on the topic "Technical exchange on Gamma Irradiator security and other alternative technologies", It was highlighted that gamma irradiation can well be migrated to electron beam irradiation for various technical and safety reasons. It was like an eye-opener for many of us in the field of irradiation techniques. The topic was well presented during our meet held on 13/03/2026. The meeting was graced by the presence of Ms.Kirstin Hiersch, Director, Radiology Safety, US department of Energy, Mr.Vikram Kalia, MD, Microtrol Sterilizations, Mr.Legoux Pierre and Mr. Martin from World Institute for Nuclear Security, Vienna Austria.

Happy to share that I have been picked by World Institute for Nuclear Security,Austria to participate in a workshop on "Gamma irradiator Security".

My Recent Book on Nuclear Physics

I am happy to share that I got selected by ANRF(SERB) to participate in ESTIC-Conclave at New Delhi to be inaugurated by Our honorable PM

I am excited that I got opportunity to attend workshop on Nuclear reactor codes conducted by ICTP, Trieste, Italy

Solid State Physics (SSP)

SOLID STATE PHYSICS MODULE I CRYSTAL STRUCTURE AND BONDING General Description of Crystal Structures – Bravais lattices- Wigner Seitz cellCubic Structures: NaCl, CsCl, Diamond, Zincblende - HCP structures - Miller Indices-crystal directions - zones in crystals- interplanar distance (derivation) - The Reciprocal Lattice and its construction-Quasi crystals -Force between atoms cohesive energy ( derivation)- bonding in solids - binding energy of ionic crystals(derivation)-Madelung constant – Born Haber cycle. MODULE II TRANSPORT PROPERTIES AND BAND THEORY OF SOLIDS Free electron theory (Sommerfeld theory) – Fermi level-Fermi distribution function -electronic specific heat- electrical and thermal conductivity of metals Wiedemann Franz law (derivation)- Schroedinger wave equation- electron motion in periodic potential – Bloch’s theorem – Kronig Penney model (derivation) - band theory of solids - Brillouin zone - Effective mass of electron and concept of hole- Fermi surface in metals and its characteristics – experimental determination of Fermi surface by De Haas van Alphen effect MODULE III PHONONS : CRYSTAL VIBRATIONS AND THERMAL PROPERTIES Vibrations of crystals with monoatomic lattice- dispersion relation (derivation) - Vibrations of crystals with diatomiclattice - dispersion relation (derivation)– optical and acoustical modes – number of normal modes of vibrations - Phonon momentum- inelastic scattering of photons by phonons – specific heat of solids- Einstein theory-Debye's theory of lattice specific heat(derivation) - anharmonic effects. MODULE IV MAGNETIC AND DIELECTRIC PROPERTIES Types of magnetic materials –Diamagnetism – Langevin's theory(derivation)- Paramagnetism – Hund’s rules – rare earth ions-iron group ions-crystal field splitting-Pauli paramagnetism- Ferromagnetism – domain theory - Curie-Weiss law (derivation)- antiferromagnetism - ferrites. Dielectric Polarization and polarizability- dielectric constant- types of polarization (qualitative) and dependence on frequency and temperature-local electric field in an atom- ClausiusMossottirelation(derivation) -Piezo, pyro and ferroelectric properties of crystals. MODULE V SUPERCONDUCTIVITY AND OPTICAL PROPERTIES Properties of superconductor – critical magnetic field – Meissner effect (derivation) – Type I and Type II super conductors – superfludidty – entropy, heat capacity and energy gap of superconductor-quantum tunneling - London equations (derivation) –coherence length - BCS theory –RVB theory – theory of AC and DC Josephson effect – flux quantization- SQUID. Traps – Excitons – coloration of crystals - types of colour centers - Luminescence: fluorescence and phosphorescence