تقرير
DPEx-II: A New Dusty Plasma Device Capable of Producing Large Sized DC Coulomb Crystals
| العنوان: | DPEx-II: A New Dusty Plasma Device Capable of Producing Large Sized DC Coulomb Crystals |
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| المؤلفون: | Arumugam, Saravanan, Bandyopadhyay, Pintu, Singh, Swarnima, Hariprasad, M. G., Rathod, Dinesh, Arora, Garima, Sen, Abhijit |
| المصدر: | Plasma Source Science and Technology, 2021 |
| سنة النشر: | 2021 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Plasma Physics |
| الوصف: | The creation of a spatially extended stable DC complex plasma crystal is a big experimental challenge and a topical area of research in the field of dusty plasmas. In this paper we describe a newly built and commissioned dusty plasma experimental device, DPEx-II, at the Institute for Plasma Research. The device can support the formation of large sized Coulomb crystals in a DC glow discharge plasma. The plasma in this L-shaped table-top glass chamber is produced between a circular anode and a long tray shaped cathode. It is characterized with the help of various electrostatic probes over a range of discharge conditions. The dust particles are introduced by a dust dispenser to form a strongly coupled Coulomb crystal in the cathode sheath region. The unique asymmetric electrode configuration minimizes the heating of dust particles and facilitates the formation of crystalline structures with a maximum achievable dimension of 40~cm X 15~cm using this device. A larger crystal has numerous advantages over smaller ones, such as higher structural homogeneity, fewer defects, lower statistical errors due to finite size effects etc.. A host of diagnostics tools are provided to characterize the Coulomb crystal. Results of a few initial experiments aimed at demonstrating the technical capabilities of the device and its potential for future dusty plasma research, are reported. Comment: This paper contains 13 pages with 23 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1088/1361-6595/ac12d9 |
| URL الوصول: | http://arxiv.org/abs/2107.06078 |
| رقم الأكسشن: | edsarx.2107.06078 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1088/1361-6595/ac12d9 |
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