“Synchrotrons,” the most powerful tool to fulfill the demand of the researchers to work with higher particle energies from 1950s started a new era, a new beginning after a long waiting period. Since then, the on-going research and development activities in various accelerators were continuing on different areas, to name a few; raising of energy levels to disintegrate nuclei with much higher energies in colliders, providing user-oriented beam dynamics, finding power supply alternatives for changing pattern of magnet excitations to reduce operation cost, changes in the generation of r.f power, upgradation of rectifier devices, changes in the converter topologies, adoption of new strategies for control systems, and many other developments for improving performance. Separate solutions were searched out to handle critical factors that restricted improved performance of the most powerful accelerators. All the hurdles were given due importance and resolved slowly after the end of World War II, when the scientists and technologists came back to take up their left over jobs with new vigor and enthusiasm to find improved ways in generating higher energies. Their activities continued accordingly to reach the set goals on above-mentioned research activities with the enormous practical knowledge and experience gained from the field work of war time assignments on projects related to atomic energy, radar, radio-frequency transmission, converters, control system, and many other related areas. At present, there are a number of high energy particle accelerators around the world but the most prominent and talked about high energy particle accelerators providing as much high energy as possible on particle physics are LHC and Tevatron. After the development of Large Hadron Collider at CERN, Geneva, enormous excitement was generated among the scientific community and the general public, to know the latest result of the experiment being conducted in that accelerator where, the physicists from all over the world were engaged in the fundamental research to find the latest result on “God’s Particle.” A Large Hadron Collider is designed to accelerate two beams of protons to energy level of 6.5 TeV each and cause them to collide head on, creating center of mass energy of 13 TeV. The Tevatron also a powerful collider accelerator at Fermilab, Batavia, Illinois, where the structure of the system is very similar to LHC, could accelerate particles from 200 MeV of Linac output to booster and with storage ring synchrotron assisting accelerator facilities to raise the energy of the protons and anti-protons to 980 GeV in opposite directions to collide at 1.96 TeV. LHC and Tevatron are actually developed as special type of accelerator complexes where, low energy from linear accelerator is amplified in booster synchrotron and storage ring arranged in cascade to generate the highest energy for final acceleration. Similar accelerator complexes are also developed in other countries as well to continue their research program with higher energies. On fourth of July, 2012, when CERN unveiled the mystery and announced the discovery of the ultimate particle, scientists and technologists were jubilant and celebrated the success of the experiment for achieving the long cherished goal. It was indeed an achievement and a proud moment for the scientists and technologists because this success:

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Power Supplies for High Energy Particle Accelerators of 1950s

  • Pranab Kumar Dey

摘要

“Synchrotrons,” the most powerful tool to fulfill the demand of the researchers to work with higher particle energies from 1950s started a new era, a new beginning after a long waiting period. Since then, the on-going research and development activities in various accelerators were continuing on different areas, to name a few; raising of energy levels to disintegrate nuclei with much higher energies in colliders, providing user-oriented beam dynamics, finding power supply alternatives for changing pattern of magnet excitations to reduce operation cost, changes in the generation of r.f power, upgradation of rectifier devices, changes in the converter topologies, adoption of new strategies for control systems, and many other developments for improving performance. Separate solutions were searched out to handle critical factors that restricted improved performance of the most powerful accelerators. All the hurdles were given due importance and resolved slowly after the end of World War II, when the scientists and technologists came back to take up their left over jobs with new vigor and enthusiasm to find improved ways in generating higher energies. Their activities continued accordingly to reach the set goals on above-mentioned research activities with the enormous practical knowledge and experience gained from the field work of war time assignments on projects related to atomic energy, radar, radio-frequency transmission, converters, control system, and many other related areas. At present, there are a number of high energy particle accelerators around the world but the most prominent and talked about high energy particle accelerators providing as much high energy as possible on particle physics are LHC and Tevatron. After the development of Large Hadron Collider at CERN, Geneva, enormous excitement was generated among the scientific community and the general public, to know the latest result of the experiment being conducted in that accelerator where, the physicists from all over the world were engaged in the fundamental research to find the latest result on “God’s Particle.” A Large Hadron Collider is designed to accelerate two beams of protons to energy level of 6.5 TeV each and cause them to collide head on, creating center of mass energy of 13 TeV. The Tevatron also a powerful collider accelerator at Fermilab, Batavia, Illinois, where the structure of the system is very similar to LHC, could accelerate particles from 200 MeV of Linac output to booster and with storage ring synchrotron assisting accelerator facilities to raise the energy of the protons and anti-protons to 980 GeV in opposite directions to collide at 1.96 TeV. LHC and Tevatron are actually developed as special type of accelerator complexes where, low energy from linear accelerator is amplified in booster synchrotron and storage ring arranged in cascade to generate the highest energy for final acceleration. Similar accelerator complexes are also developed in other countries as well to continue their research program with higher energies. On fourth of July, 2012, when CERN unveiled the mystery and announced the discovery of the ultimate particle, scientists and technologists were jubilant and celebrated the success of the experiment for achieving the long cherished goal. It was indeed an achievement and a proud moment for the scientists and technologists because this success: