Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-25T05:20:16.937Z Has data issue: false hasContentIssue false
  • English
  • Français

Shadow monochromatic backlighting: Large-field high resolution X-ray shadowgraphy with improved spectral tunability

Published online by Cambridge University Press:  18 January 2002

T.A. PIKUZ ,
A. YA. FAENOV ,
M. FRAENKEL ,
A. ZIGLER ,
F. FLORA ,
S. BOLLANTI ,
P. DI LAZZARO ,
T. LETARDI ,
A. GRILLI  and
L. PALLADINO
...Show all authors
T.A. PIKUZ
Affiliation:
Multicharged Ions Spectra Data Center of VNIIFRTI, Mendeleevo, Moscow Region, 141570, Russia
A. YA. FAENOV
Affiliation:
Multicharged Ions Spectra Data Center of VNIIFRTI, Mendeleevo, Moscow Region, 141570, Russia
M. FRAENKEL
Affiliation:
Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel Current address: Plasma Physics Department, Soreq NRC, Yavne 81800, Israel.
A. ZIGLER
Affiliation:
Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
F. FLORA
Affiliation:
ENEA, Dipartimento Innovazione, Settore Fisica Applicata, 00044 Frascati, Italy
S. BOLLANTI
Affiliation:
ENEA, Dipartimento Innovazione, Settore Fisica Applicata, 00044 Frascati, Italy
P. DI LAZZARO
Affiliation:
ENEA, Dipartimento Innovazione, Settore Fisica Applicata, 00044 Frascati, Italy
T. LETARDI
Affiliation:
ENEA, Dipartimento Innovazione, Settore Fisica Applicata, 00044 Frascati, Italy
A. GRILLI
Affiliation:
INFN Frascati, 00044 Frascati, Italy
L. PALLADINO
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
G. TOMASSETTI
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
A. REALE
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
L. REALE
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
A. SCAFATI
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
T. LIMONGI
Affiliation:
INFM Dipartamento di Fisica dell'Aquila and LNGS-INFN, Assergi (L'Aquila), Italy
F. BONFIGLI
Affiliation:
EL.EN. S.p.A., Calenzano (FI), Italy
L. ALAINELLI
Affiliation:
European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
M. SANCHEZ DEL RIO
Affiliation:
European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex, France
Get access Rights & Permissions [Opens in a new window]

Abstract

The shadow monochromatic backlighting (SMB) scheme, a modification of the well-known soft X-ray monochromatic backlighting scheme, is proposed. It is based on a spherical crystal as the dispersive element and extends the traditional scheme by allowing one to work with a wide range of Bragg angles and thus in a wide spectral range. The advantages of the new scheme are demonstrated experimentally and supported numerically by ray-tracing simulations. In the experiments, the X-ray backlighter source is a laser-produced plasma, created by the interaction of an ultrashort pulse, Ti:Sapphire laser (120 fs, 3–5 mJ, 1016 W/cm2 on target) or a short wavelength XeCl laser (10 ns, 1–2 J, 1013 W/cm2 on target) with various solid targets (Dy, Ni + Cr, BaF2). In both experiments, the X-ray sources are well localized spatially (∼20 μm) and are spectrally tunable in a relatively wide wavelength range (λ = 8–15 Å). High quality monochromatic (δλ/λ ∼ 10−5–10−3) images with high spatial resolution (up to ∼4 μm) over a large field of view (a few square millimeters) were obtained. Utilization of spherically bent crystals to obtain high-resolution, large field, monochromatic images in a wide range of Bragg angles (35° < Θ < 90°) is demonstrated for the first time.

Keywords

Laser plasma diagnosticsX-ray backlightingX-ray optics
Type
Research Article
Information
Laser and Particle Beams , Volume 19 , Issue 2 , April 2001 , pp. 285 - 293
Copyright
© 2001 Cambridge University Press

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)