Innovative Analytical Method for X-ray Imaging and Space-Resolved Spectroscopy of ECR Plasmas
نویسندگان
چکیده
At the Italian National Institute for Nuclear Physics-Southern Laboratory (INFN-LNS), and in collaboration with ATOMKI laboratories, an innovative multi-diagnostic system advanced analytical methods has been designed implemented. This is based on several detectors techniques (Optical Emission Spectroscopy, RF systems, interfero-polarimetry, X-ray detectors), here we focus high-resolution, spatially resolved spectroscopy, performed by means of a pin-hole camera setup operating 0.5–20 keV energy domain. The diagnostic was installed at 14 GHz Electron Cyclotron Resonance (ECR) ion source (ATOMKI, Debrecen), enabling high-precision, X-ray, spectrally imaging ECR plasmas heated hundreds Watts. achieved spatial resolutions were 0.5 mm 300 eV 8 keV, respectively. Here, present analysis algorithm that properly developed to obtain Single Photon-Counted (SPhC) images providing local plasma-emitted spectrum High-Dynamic-Range (HDR) mode, distinguishing fluorescence lines materials plasma chamber (Ti, Ta) from (Ar). method allows quantitative characterization warm electrons population (and its 2D distribution), which are most important ionization, estimate density spectral temperatures. post-processing also able remove readout noise often observable very low exposure times (msec). now being updated, including fast shutters trigger systems allow simultaneous space time-resolved spectroscopy during transients, stable turbulent regimes.
منابع مشابه
X-ray spectroscopy of astrophysical plasmas.
We provide a qualitative review of key X-ray spectral diagnostics of astrophysical plasmas. We begin with a brief discussion of the two major types of equilibria, collisional ionization and photoionization, and then consider the behaviour of hydrogen-like, helium-like, iron L-shell and iron K-shell transitions for these separate cases. Where possible, we discuss explicit examples using high-res...
متن کاملsemi-analytical solution for static and forced vibration problems of laminated beams through smooth fundamental functions method
در این پایان نامه روش جدیدی مبتنی بر روش حل معادلات دیفرانسیل پارهای بر اساس روش توابع پایه برای حل مسایل ارتعاش اجباری واستاتیک تیرها و صفحات لایه ای ارایه شده است که می توان تفاوت این روش با روش های متداول توابع پایه را در استفاده از توابع هموار در ارضاء معادلات حاکم و شرایط مرزی دانست. در روش ارایه شده در این پایاننامه از معادله تعادل به عنوان معادله حاکم بر رفتار سیستم استفاده شده است که مو...
15 صفحه اولResonant Polarization Spectroscopy for Hot X-ray Plasmas
X-ray line polarization spectroscopy is a method of choice for probing hot plasma conditions. The precise roles of resonant structures in this method have not been realized and fully understood. With a sophisticated relativistic close coupling Dirac R-matrix calculation of polarized radiation of the quadrupole magnetic M2 line at 2.717 Å in Ba, we revealed the nature of resonant structures in x...
متن کاملSynthesis and characterization of Gd2O2 S: Tb3+ phosphor powder for X-ray imaging detectors
Gadolinium oxysulfide phosphor doped with trivalent terbium have been synthesized using urea homogenous precipitation and followed by sulfurization at 800 °C under argon atmosphere. Structural and morphological of synthesized phosphor powder were characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectrometry (FT-IR). Hexagonal structure ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Condensed matter
سال: 2021
ISSN: ['2410-3896']
DOI: https://doi.org/10.3390/condmat7010005