Development of advanced x-ray imaging crystal spectrometer utilizing a large area segmented proportional counter for KSTAR

2007 ◽  
Vol 78 (6) ◽  
pp. 063504 ◽  
Author(s):  
S. G. Lee ◽  
J. G. Bak ◽  
U. W. Nam ◽  
M. K. Moon ◽  
J. K. Cheon
Keyword(s):  
Proportional Counter ◽  
Large Area ◽  
Crystal Spectrometer ◽  
X Ray ◽  
X Ray Imaging

Experimental results from an X-ray imaging crystal spectrometer utilizing multi-wire proportional counter for KSTAR

2016 ◽  
Vol 87 (11) ◽  
pp. 11E314 ◽  
Author(s):  
S. G. Lee ◽  
J. W. Yoo ◽  
Y. S. Kim ◽  
U. W. Nam ◽  
M. K. Moon
Keyword(s):  
Proportional Counter ◽  
Experimental Results ◽  
Crystal Spectrometer ◽  
X Ray ◽  
X Ray Imaging

Correction and verification of x-ray imaging crystal spectrometer analysis on Wendelstein 7-X through x-ray ray tracing

2021 ◽  
Vol 92 (4) ◽  
pp. 043530
Author(s):  
N. A. Pablant ◽  
A. Langenberg ◽  
J. A. Alonso ◽  
M. Bitter ◽  
S. A. Bozhenkov ◽  
...  
Keyword(s):  
Ray Tracing ◽  
Crystal Spectrometer ◽  
X Ray ◽  
X Ray Imaging

scholarly journals Discovery of recombining plasma inside the extended gamma-ray supernova remnant HB9

2019 ◽  
Vol 489 (3) ◽  
pp. 4300-4310 ◽  
Author(s):  
A Sezer ◽  
T Ergin ◽  
R Yamazaki ◽  
H Sano ◽  
Y Fukui
Keyword(s):  
Supernova Remnant ◽  
Gamma Ray ◽  
Radio Continuum ◽  
Continuum Emission ◽  
Large Area ◽  
Imaging Spectrometer ◽  
X Ray ◽  
East Region ◽  
X Ray Imaging ◽  
Collisional Ionization

ABSTRACT We present the results from the Suzaku X-ray Imaging Spectrometer observation of the mixed-morphology supernova remnant (SNR) HB9 (G160.9+2.6). We discovered recombining plasma (RP) in the western Suzaku observation region and the spectra here are well described by a model having collisional ionization equilibrium (CIE) and RP components. On the other hand, the X-ray spectra from the eastern Suzaku observation region are best reproduced by the CIE and non-equilibrium ionization model. We discuss possible scenarios to explain the origin of the RP emission based on the observational properties and concluded that the rarefaction scenario is a possible explanation for the existence of RP. In addition, the gamma-ray emission morphology and spectrum within the energy range of 0.2–300 GeV are investigated using 10 yr of data from the Fermi Large Area Telescope (LAT). The gamma-ray morphology of HB9 is best described by the spatial template of radio continuum emission. The spectrum is well fit to a log-parabola function and its detection significance was found to be 25σ. Moreover, a new gamma-ray point source located just outside the south-east region of the SNR’s shell was detected with a significance of 6σ. We also investigated the archival H i and CO data and detected an expanding shell structure in the velocity range of $-10.5$ and $+1.8$ km s−1 that is coinciding with a region of gamma-ray enhancement at the southern rim of the HB9 shell.

Measurement of the electron and ion temperatures by the x-ray imaging crystal spectrometer on joint Texas experimental tokamak

2016 ◽  
Vol 87 (11) ◽  
pp. 11E318 ◽  
Author(s):  
W. Yan ◽  
Z. Y. Chen ◽  
W. Jin ◽  
S. G. Lee ◽  
Y. J. Shi ◽  
...  
Keyword(s):  
Crystal Spectrometer ◽  
X Ray ◽  
X Ray Imaging

A Large Area Imaging Gas Scintillation Proportional Counter For Use In X-Ray Astronomy

1984 ◽  
Author(s):  
William H. M. Ku ◽  
Kenneth S. Lum ◽  
Michael H. Vartanian
Keyword(s):  
Proportional Counter ◽  
Large Area ◽  
X Ray

Advanced X-ray Imaging Crystal Spectrometer for Magnetic Fusion Tokamak Devices

2008 ◽  
Author(s):  
S. G. Lee ◽  
J. G. Bak ◽  
M. G. Bog ◽  
U. W. Nam ◽  
M. K. Moon ◽  
...  
Keyword(s):  
Magnetic Fusion ◽  
Crystal Spectrometer ◽  
X Ray ◽  
X Ray Imaging
Sign in / Sign up

Export Citation Format

Share Document