Final Performances of the X-Ray Mirrors of the Jet-X Telescope

The Joint European X-ray Telescope (JET-X) is one of the core scientific instruments of the SPECTRUM RONTGEN-γ astrophysics mission. The project is a collaboration of British, Italian and Russian consortia, with the participation of the Max Planck Institut (Germany). JET-X was designed to study the emission from X-ray sources in the band of 0.3-10 keV. Citterio et al. (1996 and references therein) describe its structure, composed by two identical and coaligned Wolter I telescopes. Focal plane imaging is provided by cooled X-ray sensitive CCD detectors which combine high spatial resolution with good spectral resolution, including coverage of the iron line complex around 7 keV at a resolution of ΔE/E ~ 2%.

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High spatial resolution scintillator screens coupled to CCD detectors for X-ray imaging applications

Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ◽

10.1016/0168-9002(94)90817-6 ◽

1994 ◽

Vol 348 (2-3) ◽

pp. 649-653 ◽

Cited By ~ 11

Author(s):

C.M. Castelli ◽

N.M. Allinson ◽

K.J. Moon ◽

D.L. Watson

Keyword(s):

Spatial Resolution ◽

High Spatial Resolution ◽

X Ray ◽

X Ray Imaging ◽

Ccd Detectors

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High spatial-resolution reflectivity and fluorescence mapping of multilayers using a sub-micrometer focused synchrotron X-ray beam

Journal de Physique IV (Proceedings) ◽

10.1051/jp4:200300072 ◽

2003 ◽

Vol 104 ◽

pp. 247-250

Author(s):

T. Bigault ◽

E. Ziegler ◽

Ch. Morawe ◽

W. Ludwig ◽

R. Soufli

Keyword(s):

Spatial Resolution ◽

High Spatial Resolution ◽

X Ray

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High-Spatial-Resolution Bone Densitometry with Dual-Energy X-ray Absorptiometric Region-free Analysis

Radiology ◽

10.1148/radiol.15154008 ◽

2015 ◽

Vol 275 (1) ◽

pp. 310-310 ◽

Cited By ~ 2

Author(s):

Richard M. Morris ◽

Lang Yang ◽

Miguel A. Martín-Fernández ◽

Jose M. Pozo ◽

Alejandro F. Frangi ◽

...

Keyword(s):

Spatial Resolution ◽

Bone Densitometry ◽

High Spatial Resolution ◽

Dual Energy ◽

X Ray

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ZnWO4 Nanoparticle Scintillators for High Resolution X-ray Imaging

Nanomaterials ◽

10.3390/nano10091721 ◽

2020 ◽

Vol 10 (9) ◽

pp. 1721

Author(s):

Heon Yong Jeong ◽

Hyung San Lim ◽

Ju Hyuk Lee ◽

Jun Heo ◽

Hyun Nam Kim ◽

...

Keyword(s):

Particle Size ◽

Zinc Oxide ◽

High Resolution ◽

Tungsten Oxide ◽

Spatial Resolution ◽

High Spatial Resolution ◽

X Ray ◽

X Ray Imaging ◽

Average Size ◽

And Tungsten

The effect of scintillator particle size on high-resolution X-ray imaging was studied using zinc tungstate (ZnWO4) particles. The ZnWO4 particles were fabricated through a solid-state reaction between zinc oxide and tungsten oxide at various temperatures, producing particles with average sizes of 176.4 nm, 626.7 nm, and 2.127 μm; the zinc oxide and tungsten oxide were created using anodization. The spatial resolutions of high-resolution X-ray images, obtained from utilizing the fabricated particles, were determined: particles with the average size of 176.4 nm produced the highest spatial resolution. The results demonstrate that high spatial resolution can be obtained from ZnWO4 nanoparticle scintillators that minimize optical diffusion by having a particle size that is smaller than the emission wavelength.

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