Pitamber Singh

Accelerator-Driven Systems for Thorium Utilization in India

Research on accelerator-driven systems (ADSs) is being carried out around the world with the objectives of waste transmutation and power production. Over the last few years, the Bhabha Atomic Research Centre (BARC) has been pursuing research in the area of ADS with the primary objective of thorium utilization. ADSs can play an important role in augmenting India’s efforts for the development of nuclear power by way of the three-stage program utilizing indigenous resources. In this article, the research and development efforts in this area at BARC are outlined along with some schemes being studied for thorium utilization in ADSs.

Analytical Method for Coupling Calculations of Rotated Iris Coupled Resonator Cavity

Iris type waveguide to cavity couplers are used to couple power to particle accelerator cavities. Waveguide to cavity coupling for arbitrarily oriented rectangular iris is analyzed using Bethes small hole coupling theory. Magnetic moment of rotated iris is obtained by deflning its dyadic magnetic polarizability. Power radiated by magnetic moment into the incoming waveguide is used for coupling calculations at arbitrary angle. A close agreement is found between the proposed theory, simulations and microwave measurements.

Development of solid state modulating anode power supply for 1 MW Klystron system

Bhabha Atomic Research Centre (BARC) Mumbai is developing Low Energy High Intensity Proton accelerator (LEHIPA) of energy 20 MeV, 30 mA. LEHIPA comprises of Radio Frequency Quadrupole (RFQ) accelerator (3 MeV), 10 MeV Drift Tube Linac (DTL) and 20 MeV Drift Tube Linac (DTL). As per the accelerator physics design, RFQ and DTLs require about 2.4 MW of total radio frequency (RF) power. Each accelerating cavity will be driven by a 1MW continuous wave (CW) klystron (TH2089F) amplifier at 352.21 MHz. LEHIPA will operate in both, pulsed and CW mode So, the RF system is being designed to operate in the both, CW and pulse mode.