Advanced Thomson scattering system for high-flux linear plasma generator

被引：65

作者：

van der Meiden, H. J. ^{[1
]}

Lof, A. R. ^{[1
]}

van den Berg, M. A. ^{[1
]}

Brons, S. ^{[1
]}

Donne, A. J. H. ^{[1
,2
]}

van Eck, H. J. N. ^{[1
]}

Koelman, P. M. J. ^{[1
]}

Koppers, W. R. ^{[1
]}

Kruijt, O. G. ^{[1
]}

Naumenko, N. N. ^{[3
]}

Oyevaar, T. ^{[1
]}

Prins, P. R. ^{[1
]}

Rapp, J. ^{[1
]}

Scholten, J. ^{[1
]}

Schram, D. C. ^{[1
,2
]}

Smeets, P. H. M. ^{[1
]}

van der Star, G. ^{[1
]}

Tugarinov, S. N. ^{[4
]}

van Emmichoven, P. A. Zeijlmans ^{[1
]}

机构：

[1] EURATOM, FOM Inst DIFFER, Dutch Inst Fundamental Energy Res, NL-3430 BE Nieuwegein, Netherlands

[2] Eindhoven Univ Technol, NL-5600 MB Eindhoven, Netherlands

[3] IPh NASB, Minsk, BELARUS

[4] SRC TRINITI, Troitsk, Moscow Reg, Russia

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2012年 / 83卷 / 12期

关键词：

RECOMBINATION; ARGON;

D O I：

10.1063/1.4768527

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

An advanced Thomson scattering system has been built for a linear plasma generator for plasma surface interaction studies. The Thomson scattering system is based on a Nd:YAG laser operating at the second harmonic and a detection branch featuring a high etendue (f/3) transmission grating spectrometer equipped with an intensified charged coupled device camera. The system is able to measure electron density (n(e)) and temperature (T-e) profiles close to the output of the plasma source and, at a distance of 1.25 m, just in front of a target. The detection system enables to measure 50 spatial channels of about 2 mm each, along a laser chord of 95 mm. By summing a total of 30 laser pulses (0.6 J, 10 Hz), an observational error of 3% in ne and 6% in T-e (at n(e) = 9.4 x 10(18) m(-3)) can be obtained. Single pulse Thomson scattering measurements can be performed with the same accuracy for n(e) > 2.8 x 10(20) m(-3). The minimum measurable density and temperature are ne < 1 x 10(17) m(-3) and T-e < 0.07 eV, respectively. In addition, using the Rayleigh peak, superimposed on the Thomson scattered spectrum, the neutral density (n(0)) of the plasma can be measured with an accuracy of 25% (at n(0) = 1 x 10(20) m(-3)). In this report, the performance of the Thomson scattering system will be shown along with unprecedented accurate Thomson-Rayleigh scattering measurements on a low-temperature argon plasma expansion into a low-pressure background. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4768527]

引用

页数：12

共 25 条

[1]

Ashkenas H, 1966, RAREFIED GAS DYNAMIC, V2

[2] Exploiting a transmission grating spectrometer [J].

Bell, RE .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (10) :4158-4161

[3] Simulations of geometrically pinched argon plasmas using an extended one-dimensional model [J].

Burm, KTAL ;

Goedheer, WJ ;

Schram, DC .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2001, 34 (13) :2000-2015

[4] Production of high transient heat and particle fluxes in a linear plasma device [J].

De Temmerman, G. ;

Zielinski, J. J. ;

van der Meiden, H. ;

Melissen, W. ;

Rapp, J. .

APPLIED PHYSICS LETTERS, 2010, 97 (08)

[5] ANOMALOUS FAST RECOMBINATION IN HYDROGEN PLASMAS INVOLVING ROVIBRATIONAL EXCITATION [J].

DEGRAAF, MJ ;

SEVERENS, R ;

DAHIYA, RP ;

VANDESANDEN, MCM ;

SCHRAM, DC .

PHYSICAL REVIEW E, 1993, 48 (03) :2098-2102

[6] Plasma expansion: fundamentals and applications [J].

Engeln, R ;

Mazouffre, S ;

Vankan, P ;

Bakker, I ;

Schram, DC .

PLASMA SOURCES SCIENCE & TECHNOLOGY, 2002, 11 (3A) :A100-A104

[7] LASER LIGHT SCATTERING IN LABORATORY PLASMAS [J].

EVANS, DE ;

KATZENSTEIN, J .

REPORTS ON PROGRESS IN PHYSICS, 1969, 32 (02) :207-+

[8] Two-dimensional flow characteristic of a hot expanding plasma [J].

Gabriel, O. ;

Colsters, P. G. J. ;

Schram, D. C. ;

Engeln, R. .

PLASMA SOURCES SCIENCE & TECHNOLOGY, 2008, 17 (01)

[9] Planetary-entry gas dynamics [J].

Gnoffo, PA .

ANNUAL REVIEW OF FLUID MECHANICS, 1999, 31 :459-494

[10]

JANSSEN GM, 2000, THESIS U EINDHOVEN N

← 1 2 3 →