Temperature analysis in the shock waves regime for gas-filled plasma capillaries in plasma-based accelerators

被引：12

作者：

Biagioni, A. ^{[1
]}

Alesini, D. ^{[1
]}

Anania, M. P. ^{[1
]}

Bellaveglia, M. ^{[1
]}

Bini, S. ^{[1
]}

Bisesto, F. ^{[1
]}

Brentegani, E. ^{[1
]}

Chiadroni, E. ^{[1
]}

Cianchi, A. ^{[2
]}

Coiro, O. ^{[1
]}

Costa, G. ^{[1
]}

Croia, M. ^{[1
]}

Del Dotto, A. ^{[1
]}

Di Giovenale, D. ^{[1
]}

Di Pirro, G. ^{[1
]}

Ferrario, M. ^{[1
]}

Filippi, F. ^{[1
]}

Giribono, A. ^{[1
]}

Lollo, V. ^{[1
]}

Mostacci, A. ^{[3
]}

Pellegrini, D. ^{[1
]}

Pompili, R. ^{[1
]}

Romeo, S. ^{[1
]}

Scifo, J. ^{[1
]}

Shpakov, V. ^{[1
]}

Stella, A. ^{[1
]}

Vaccarezza, C. ^{[1
]}

Villa, F. ^{[1
]}

Zigler, A. ^{[4
]}

机构：

[1] INFN, Lab Nazl Frascati, Via E Fermi 40, I-00044 Frascati, Italy

[2] Univ Roma Tor Vergata, Dipartimento Fis, V Ric Sci 1, I-00133 Rome, Italy

[3] Sapienza Univ Roma, Dipartimento Sci Base & Appl Ingn SBAI, Via A Scarpa 14-16, I-00161 Rome, Italy

[4] Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel

来源：

JOURNAL OF INSTRUMENTATION | 2019年 / 14卷

关键词：

Plasma diagnostics - high speed photography; Wake-field acceleration (laser-driven; electron-driven); Accelerator Applications; Plasma diagnostics - charged-particle spectroscopy; DISCHARGE;

D O I：

10.1088/1748-0221/14/03/C03002

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Plasma confinement represents a crucial point for plasma-based accelerators and plasma lenses because it can strongly affect the beam properties. For this reason, an accurate measurement of the plasma parameters, as plasma temperature, pressure and electron density, must be performed. In this paper, we introduce a novel method to detect the plasma temperature and the pressure for gasfilled capillaries in use at the SPARC_LAB test facility. The proposed method is based on the shock waves produced at the ends of the capillary during the gas discharge and the subsequent plasma formation inside it. By measuring the supersonic speed of the plasma outflow, the thermodynamic parameters have been obtained both outside and inside the capillary. A plasma temperature around 1.4 eV has been measured, that depends on the geometric properties and the operating conditions of the capillary.

引用

页数：9

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