204 0

Development of a Laser Induced Fluorescence (LIF) system on the Plasma Material Interaction System (PLAMIS-II) device

Title
Development of a Laser Induced Fluorescence (LIF) system on the Plasma Material Interaction System (PLAMIS-II) device
Author
정규선
Keywords
Plasma diagnostics - charged-particle spectroscopy; Plasma diagnostics - interferometry, spectroscopy and imaging
Issue Date
2015-12
Publisher
IOP PUBLISHING LTD
Citation
JOURNAL OF INSTRUMENTATION, v. 10, Article number C12019, Page. 12019-12019
Abstract
A laser induced fluorescence (LIF) system has been developed for the plasma material interaction system (PLAMIS-II) device, which is equipped with a unique plasma gun composed of a LaB6 cathode and two anodes with electromagnets to generate a focused dense plasma. PLAMIS-II simulates the interactions of plasma with different materials and is to be used for the test of plasma facing components of fusion devices. The LIF system is composed of a seed laser with Littmann/Metcalf cavity and a master oscillator power amplifier to pump 3d(4)F(7/2) metastable argon ion to 4p(4)D(5/2) level at the wavelength of 668.61 nm, which has the following input parameters: laser power = 20mW, line width ˂ 100 kHz, and a mode-hop free tuning range ˃ 70 GHz. For in-situ measurement of laser wavelength, the wavelength spectrum of an iodine cell was measured by a photo-transistor during LIF measurement. To measure argon ion temperature (T-i) and drift velocity (v(d)) in PLAMIS-II, the fluorescence light with the wavelength of 442.72 nm, emitted from 4p(4)D(5/2) level to 4s(4)P(3/2) level and passing through 1 nm band-width filter, was collected by the photomultiplier tube combined with a lock-in amplifier and a chopper with frequency of 3 kHz. Initial data of T-i and v(d) were analysed in terms of gas flow rate and applied power.
URI
http://iopscience.iop.org/article/10.1088/1748-0221/10/12/C12019/meta;jsessionid=CE0E31A4C2FE67E506225649F2CFD43B.c3.iopscience.cld.iop.orghttp://hdl.handle.net/20.500.11754/29502
ISSN
1748-0221
DOI
10.1088/1748-0221/10/12/C12019
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE