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Nuclear Science and Engineering
Fusion Science and Technology
A day in the life of the nuclear community
The November issue of Nuclear News is focused on the individuals who make up our nuclear community.
We invited a small group of those individuals to tell us about their day-to-day work in some of the many occupations and applications of nuclear science and technology, and they responded generously. They were ready to tell us about the part they play, together with colleagues and team members, in supplying clean energy, advancing technology, protecting safety and health, and exploring fundamental science.
In these pages, we see a community that can celebrate both those workdays that record progress moving at a steady pace and the exceptional days when a goal is reached, a briefing is delivered, a contract goes through, a discovery is made, or an unforeseen challenge is overcome.
The Nuclear News staff hopes that you enjoy meeting these members of our community—or maybe get reacquainted with friends—through their words and photos.
K. Sathyanarayana, S. V. Kulkarni, Amit Patel, Pujita Bhatt, Alpesh Vala, Hiren Mewada, Keyur Mahant
Fusion Science and Technology | Volume 75 | Number 3 | April 2019 | Pages 234-243
Technical Note | dx.doi.org/10.1080/15361055.2018.1557984
Articles are hosted by Taylor and Francis Online.
The impact of geometric tolerances of the mode converters on the microwave performance of the respective mode converters is studied. It is used as a guiding principle for stipulating the fabrication tolerances on various high-power microwave components. To carry out the simulation studies, Microwave Studio- Computer Simulation Technology software has been used. All the mode converters and transmission line components have been designed and benchmarked using simulation studies. The TE-03 to TE-02 (TE-mn where m and n are radial and azimuthal variation of fields) mode converter is taken as an example. The predicted microwave performance with estimated geometric tolerances is elucidated. Details of the same are available in the various microwave performance plots. Similar simulation studies have been carried out on the other mode converters. The results of the same are highlighted and summarized. Further, the microwave performance of these high-power components with respect to the fabrication tolerances on the internal diameter is also explored and highlighted. It has been found that by and large the cumulative mechanical tolerances on the total length, structural profile inside the mode converter, radius of the mode converter, and other mechanical dimensions are stringent. Based on the simulation studies, cumulative mechanical tolerances beyond approximately ±100 µm during fabrication are not preferred. The aim to obtain the finished product based on the guidelines from simulation studies has been the main theme of the exercise.