16-05-2024
09:18 AM
Prelims: General Science
Mains: Achievements of Indians in science and technology; indigenization of technology and developing new technology.
Homi Bhabha played a pivotal role in propelling India's science and technology forward. Despite competing with other distinguished and more seasoned Indian scientists of his era, Bhabha emerged as a standout. Homi Bhabha was the driving force behind establishing and developing the country's comprehensive atomic energy programme, especially given India's nascent post-independence stage and its developmental challenges. Dr. Homi J. Bhabha is often hailed as the architect of India's nuclear initiative. Additionally, he was the founding director of the Atomic Energy Establishment, Trombay (AEET) and played an instrumental role in India's journey towards nuclear weaponry.
Dr. Homi Jehangir Bhabha is widely regarded as the father of India's nuclear program. Growing up in an affluent and educated environment, Bhabha received quality education from an early age.
Dr. Home Bhabha was born in Mumbai on October 30, 1909, to a prominent Parsi family.
Dr. Homi Bhabha made a significant contribution to science in general and particularly to the development of nuclear sciences in India.
Some of the major scientific contributions of Dr Homi Bhabha are listed below
Concept | Description |
Bhabha Scattering | - It refers to the electromagnetic scattering between an electron and a positron, which are antiparticles of each other. - It provides valuable insights into the cross-section (probability) of the scattering, which is pivotal in experiments at electron-positron colliders. - It is used in calibrating electron-positron colliders due to its relatively large cross-section. - It is a vital testbed for QED (Quantum Electrodynamics), the quantum theory of electromagnetic interactions. |
Bhabha-Heitler theory | - It addresses the production of electron-positron pairs (pair production) and the subsequent electromagnetic cascades produced when high-energy gamma rays (photons) or charged particles interact with matter. - It has been extensively used to analyse cosmic ray showers, calculate the number of secondary particles produced at varying depths in the atmosphere, and estimate the energy of primary cosmic rays based on the observed properties of the cascades they produce. |
Work on Yukawa Particle | - He investigated the theoretical scattering of these particles by electrons, a process analogous to the Compton scattering of photons. - Bhabha's work in this area provided important insights into the behaviour and properties of the Yukawa particle. |
Work on Mesons | - He provided a detailed theoretical explanation for the showers of particles produced when high-energy cosmic rays collide with the Earth's atmosphere. - His work on mesons played a crucial role in understanding cosmic ray showers and the behaviour of mesons in various conditions. This process involves mesons, which are an integral part of the showers. |
Dr. Homi Bhabha played an indispensable role in laying the foundation and charting the course for India's nuclear ambitions. His major contributions are listed below
Three-Stage Nuclear Power Program
APSARA (India's first research reactor)
Atomic Energy Act, 1948
Representation of India at IAEA
Space
Electronics
Dr. Homi Bhabha received many accolades, such as:
Cosmic rays are high-energy particles, primarily protons and atomic nuclei, originating from outer space. They interact with Earth's atmosphere, producing secondary particles, and provide insights into astrophysical processes and the universe's composition.
APSARA-U is an upgraded version of India's first research reactor, APSARA. Commissioned in 2018, it operates on enriched uranium fuel, providing advanced research facilities in nuclear physics, material science, and radiation shielding, enhancing India's capabilities in atomic energy research.
The underlying principle of Bhabha scattering is the interaction between charged particles, specifically an electron and a positron, mediated by the exchange of a virtual photon in quantum electrodynamics (QED).
The three stages of Dr Homi Bhabha's Three-Stage Nuclear Power Programme for India were the Pressurized Heavy Water Reactor (PHWR) Stage, Fast Breeder Reactor (FBR) Stage and Thorium-based Reactor Stage.
Proposed by Hideki Yukawa, these are new particles which act as the mediator of the strong nuclear force holding protons and neutrons together in the atomic nucleus.
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