Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma
Using a uniquely configured glow discharge-based Shivalik Plasma Device-I, we demonstrate a variety of collective phenomena in dusty plasma away from the glow discharge region. The cylindrical glass device produces plasma using parallel disc-shaped electrodes with a smaller anode size than the catho...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2023-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0172606 |
| _version_ | 1797367032884232192 |
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| author | Sachin Sharma Meenakshee Sharma G. Veda Prakash Prabhakar Srivastav Yogesh Saxena Sayak Bose Sanat Tiwari |
| author_facet | Sachin Sharma Meenakshee Sharma G. Veda Prakash Prabhakar Srivastav Yogesh Saxena Sayak Bose Sanat Tiwari |
| author_sort | Sachin Sharma |
| collection | DOAJ |
| description | Using a uniquely configured glow discharge-based Shivalik Plasma Device-I, we demonstrate a variety of collective phenomena in dusty plasma away from the glow discharge region. The cylindrical glass device produces plasma using parallel disc-shaped electrodes with a smaller anode size than the cathode. The dust microparticles are initially sprinkled over the grounded cathode. These particles acquire a significant negative charge upon plasma formation, resulting in their levitation due to the balance between the Coulomb force and gravity. The new device supports the levitation of a big-sized (10 × 8 × 5 cm3) three-dimensional dust cloud over the glass surface. It contrasts the dusty plasma formations in-between electrodes reported earlier. As the discharge voltage varies from high to low, the dust cloud travels from over the glass surface to between the electrodes. A complex interplay of dust void over the cathode, a sharp density gradient, and gravity lead to self-excitation of collective dust phenomena. It includes dust density waves (phase velocity, vph ∼ 4 cm/s), dust cloud oscillation (frequency, f = 5 Hz), sheared flow (flow velocity, vf ∼ 1 cm/s), and multiple-sized dust vortices. These dust vortices provided an excellent platform for studying turbulent mixing phenomena. The power spectrum analysis agreed with two-dimensional Kolmogorov power-law scaling. This is an ideal dusty plasma apparatus where we can create or move the dust cloud to a location of choice from the glass surface to in-between the electrodes and excite one among many collective dust dynamics. |
| first_indexed | 2024-03-08T17:13:12Z |
| format | Article |
| id | doaj.art-b22ebdd2aca948af8edf2e2971b58350 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-03-08T17:13:12Z |
| publishDate | 2023-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-b22ebdd2aca948af8edf2e2971b583502024-01-03T19:51:07ZengAIP Publishing LLCAIP Advances2158-32262023-12-011312125110125110-1010.1063/5.0172606Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasmaSachin Sharma0Meenakshee Sharma1G. Veda Prakash2Prabhakar Srivastav3Yogesh Saxena4Sayak Bose5Sanat Tiwari6Indian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, IndiaBellatrix Aerospace Pvt. Ltd., No. 22, 5th Floor, Sankey Road, Bangalore 560020, IndiaIndian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, IndiaInstitute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428, IndiaInstitute for Plasma Research, Bhat, Gandhinagar, Gujarat 382428, IndiaColumbia Astrophysics Laboratory, Columbia University, 550 West 120th Street, New York, New York 10027, USAIndian Institute of Technology Jammu, Jagti, Jammu and Kashmir 181221, IndiaUsing a uniquely configured glow discharge-based Shivalik Plasma Device-I, we demonstrate a variety of collective phenomena in dusty plasma away from the glow discharge region. The cylindrical glass device produces plasma using parallel disc-shaped electrodes with a smaller anode size than the cathode. The dust microparticles are initially sprinkled over the grounded cathode. These particles acquire a significant negative charge upon plasma formation, resulting in their levitation due to the balance between the Coulomb force and gravity. The new device supports the levitation of a big-sized (10 × 8 × 5 cm3) three-dimensional dust cloud over the glass surface. It contrasts the dusty plasma formations in-between electrodes reported earlier. As the discharge voltage varies from high to low, the dust cloud travels from over the glass surface to between the electrodes. A complex interplay of dust void over the cathode, a sharp density gradient, and gravity lead to self-excitation of collective dust phenomena. It includes dust density waves (phase velocity, vph ∼ 4 cm/s), dust cloud oscillation (frequency, f = 5 Hz), sheared flow (flow velocity, vf ∼ 1 cm/s), and multiple-sized dust vortices. These dust vortices provided an excellent platform for studying turbulent mixing phenomena. The power spectrum analysis agreed with two-dimensional Kolmogorov power-law scaling. This is an ideal dusty plasma apparatus where we can create or move the dust cloud to a location of choice from the glass surface to in-between the electrodes and excite one among many collective dust dynamics.http://dx.doi.org/10.1063/5.0172606 |
| spellingShingle | Sachin Sharma Meenakshee Sharma G. Veda Prakash Prabhakar Srivastav Yogesh Saxena Sayak Bose Sanat Tiwari Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma AIP Advances |
| title | Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma |
| title_full | Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma |
| title_fullStr | Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma |
| title_full_unstemmed | Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma |
| title_short | Shivalik Plasma Device-I, a glow discharge device to study the collective dynamics of dusty plasma |
| title_sort | shivalik plasma device i a glow discharge device to study the collective dynamics of dusty plasma |
| url | http://dx.doi.org/10.1063/5.0172606 |
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