A multi-purpose reciprocating probe drive system for studying the effect of gas-puffs on edge plasma dynamics in the ADITYA-U tokamak
This article reports the development of a versatile high-speed reciprocating drive system (HRDS) with interchangeable probe heads to characterize the edge plasma region of the ADITYA-U tokamak. The system is driven by a servo motor, which is controlled by a PXI-commanded controller. It can be operated remotely with precise control over the speed, acceleration, and distance traveled by the probe head on a shot-to-shot basis. HRDS-driven linear array of Langmuir probe measurements of floating potential, electron density, and temperature revealed that the gas puff impacts these parameters up to ∼3 to 4 cm inside the last closed flux surface (LCFS). In addition, by driving an array of magnetic probes, the system facilitated measurements of magnetic fluctuations inside the LCFS, demonstrating its versatility in supporting different diagnostic probes.
Authors
- Sharvil Patel (ORCID: https://orcid.org/0000-0002-3112-7114)
- Suman Dolui (ORCID: https://orcid.org/0000-0001-6693-4584)
- Komal Yadav (ORCID: https://orcid.org/0009-0004-0588-5407)
- Kalpesh Galodiya
- Rohit Kumar (ORCID: https://orcid.org/0000-0001-9776-0468)
- Laxmikanta Pradhan
- Tanmay Macwan (ORCID: https://orcid.org/0000-0002-9767-0830)
- Ankit R. Patel (ORCID: https://orcid.org/0000-0002-2801-7037)
- Suman Aich (ORCID: https://orcid.org/0000-0003-3561-9180)
- Devilal Kumawat (ORCID: https://orcid.org/0000-0001-5566-0688)
- Abha Kanik (ORCID: https://orcid.org/0009-0001-1906-7438)
- Pramila Gautam (ORCID: https://orcid.org/0009-0003-2187-6925)
- Shwetang N. Pandya (ORCID: https://orcid.org/0000-0003-4346-8036)
- Rakesh L. Tanna (ORCID: https://orcid.org/0000-0003-4613-7072)
- Kaushlender Singh (ORCID: https://orcid.org/0000-0002-9315-7706)
- Joydeep Ghosh (ORCID: https://orcid.org/0000-0002-4369-1900)
- Harshita Raj (ORCID: https://orcid.org/0000-0001-6778-1292)
- M. S. Khan (ORCID: https://orcid.org/0000-0002-7715-533X)
- Ashok K. Kumawat
- Ankit Kumar (ORCID: https://orcid.org/0009-0001-6457-5845)
- K.A. Jadeja (ORCID: https://orcid.org/0000-0002-0677-0079)
- K.M. Patel (ORCID: https://orcid.org/0000-0002-8406-0267)
- Injamul Hoque (ORCID: https://orcid.org/0009-0002-9667-7747)
- Abhijeet Kumar (ORCID: https://orcid.org/0000-0003-0266-476X)
- Devang Raval (ORCID: https://orcid.org/0009-0001-5374-9934)
- Bharat Hegde (ORCID: https://orcid.org/0009-0001-9674-8552)
- Soumitra Banerjee
Institutions
- University of California, Los Angeles (US)
- Homi Bhabha National Institute (IN)
- Pandit Deendayal Energy University (IN)
- Institute for Plasma Research (IN)
- University of Petroleum and Energy Studies (IN)
Publication Details
- Journal
- AIP Advances
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1063/5.0253274
- Citations
- 4
- Primary Topic
- Magnetic confinement fusion research
- Type
- article
- Field-Weighted Citation Impact
- 7.48