Research On Key Technology Of Five-channel Crystal Spectrometer

Controlled nuclear fusion is a major task of the contemporary world of science and technology, laser inertial confined fusion is currently one of the main fusion research.The basic principle of Inertial Confined Fusion is that, powerful pulsed laser beam irradiates micro fusion capsule of deuterium, tritium, which generates extreme temperature and pressure for a moment. The highly compressed dense plasma will be ejected and generates cohesion reverse-thrust before diffusing. The material of fusion capsule were compressed to high density and temperature, that is necessary for thermonuclear burning, and held for certain constraints of time. All the nuclear fusion reaction is completed, and release a large number of fusion energy.In the experimental study of inertial confined fusion, laser shooting will produce high-temperature plasma. It emits X-ray spectra containing a wealth of information, such as electron temperature, density and ionization and so on. The state parameters like temperature, density and ionization distribution must be measured to study the internal state and change of high temperature plasma. In order to accurately diagnose the physical state of high temperature and density plasma, time-resolved spectroscopy of X-ray plasma is an effective technology for studying hot dense plasma.This paper describes the significance of the application of a five-channel X-ray Curved crystal spectrometer which is used in laser diagnostic. The structural design of the five-channel crystal spectrometer is mainly based on the basic theory of X-ray diffraction.The designed five-channel crystal spectrometer with wide spectrum is a conventional equipment which can be used for X-ray spectroscopy diagnostic. This type of spectrometer has a wide range of uses, such as the radiation-driven implosion, opacity, X-ray energy, the black chamber physics and radiation transport experiments. It can be used for diagnosis Integral X-ray spectrum of ionized ion emission time integration for these elements, such as Al, Mg, S, Cl, Ar, K, Ti, Cr, Fe, Mo, Ag, and An etc. These spectral lines provide important information for plasma research of the laser fusion . After calibration, it can measure X-ray emission flow of spectroscopy, the analysis can obtain data on the plasma state, such as ionization, density and ion types etc. In this paper, we first used in laser fusion plasma diagnostic laboratory convex curved crystal spectrometer cylindrical structure made of functional analysis, and introduces the five-channel optical system cylindrical crystal spectrometer and the characteristics of the basic components parameters.Next, Based on the basic theory of classical optical instruments, the main design parameters were computing. We did kinematic analysis to the targeting organizations and regulatory agencies Using the classical robot theory of science. Meanwhile, the control part of the targeted institutions were introduced, because it is very important to ensure the accuracy of the delivery to send the target of target institutions.Finally, the design for the spectrometer part of the various mechanical functions, are also introduced. And for some important part which will affect the accuracy of the overall design of spectrometer components, finite element analysis was carried out. To these key components in the design of optimized design.