Triple grating polychromator for Thomson scattering
نویسندگان
چکیده
منابع مشابه
Design and Calibration of a Polychromator for the Thomson Scattering at Wendelstein 7-X
On Wendelstein 7-X, electron density and electron temperature profiles are planned to be measured by Thomson scattering. The specific system employs fiber bundles for the scattered light which is detected by means of a five-channel polychromator system. The detection system is assembled and its components are characterized. A calibration technique employing a super-continuum light source is ass...
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Significant loss in transmissivity of the fiber used for the 18 years operations in JT-60U has been discovered: thereby making optimization of the filter configuration in the polychromator in Thomson scattering system for the high performance plasmas in JT-60SA is an essential task. The loss in the optical components induced by radiation from neutrons and γ-rays in particular needs to be examin...
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Wide field-of-view, high transparency birefringent filters (essentially fixed delay interferometers) are proposed for incoherent Thomson scattering measurements of the temperature and density of plasma free electrons. For thermal electrons, the optical coherence of the Thomson scattered light at an appropriately chosen optical path delay, is a unique function of the electron temperature and den...
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In a recent paper it has been shown that single electron Thomson backscatter calculations can be performed including the effects of pulsed high intensity lasers. In this paper we present a more detailed treatment of the problem and present results for more general scattering geometries. In particular, we present new results for 90 degrees Thomson scattering. Such geometries have been increasing...
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The introduction of brilliant free-electron lasers enables new pump-probe experiments to characterize warm dense matter states. For instance, a short-pulse optical laser irradiates a liquid hydrogen jet that is subsequently probed with brilliant soft x-ray radiation. The strongly inhomogeneous plasma prepared by the optical laser is characterized with particle-in-cell simulations. The interacti...
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ژورنال
عنوان ژورنال: Applied Optics
سال: 1977
ISSN: 0003-6935,1539-4522
DOI: 10.1364/ao.16.000587