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X-ray generation for medical applications from a laser-produced plasma

Gratz, M; Tillman, C; Mercer, I and Svanberg, Sune LU (1996) In Applied Surface Science 96-8. p.443-447
Abstract
We present investigations on the generation of X-ray radiation suitable for different types of medical imaging. Pulses from a 10 Hz terawatt laser system with a duration of 150 fs are focused onto a solid high-Z material target, with focal spot intensities reaching 10(18) W/cm(2). The produced plasma emits broadband X-ray radiation with photon energies up to the MeV region. The application of this X-ray radiation offers new features for medical radiography. Our source allows magnification imaging as well as ultrashort single-shot exposures. New contrast imaging techniques making use of an enhanced characteristic line emission are investigated. The experimental set-up also allows the study of ablation phenomena from sub-picosecond laser... (More)
We present investigations on the generation of X-ray radiation suitable for different types of medical imaging. Pulses from a 10 Hz terawatt laser system with a duration of 150 fs are focused onto a solid high-Z material target, with focal spot intensities reaching 10(18) W/cm(2). The produced plasma emits broadband X-ray radiation with photon energies up to the MeV region. The application of this X-ray radiation offers new features for medical radiography. Our source allows magnification imaging as well as ultrashort single-shot exposures. New contrast imaging techniques making use of an enhanced characteristic line emission are investigated. The experimental set-up also allows the study of ablation phenomena from sub-picosecond laser pulses by means of particle deposition on thin glass plates. Deposition patterns were studied dependent on different plasma-generation parameters. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Applied Surface Science
volume
96-8
pages
443 - 447
publisher
Elsevier
external identifiers
  • scopus:0030563128
ISSN
1873-5584
DOI
10.1016/0169-4332(95)00455-6
language
English
LU publication?
yes
id
35cdb0ca-abd1-4532-be7b-a2bd74693890 (old id 2258248)
date added to LUP
2012-02-21 00:40:58
date last changed
2017-01-01 07:31:05
@article{35cdb0ca-abd1-4532-be7b-a2bd74693890,
  abstract     = {We present investigations on the generation of X-ray radiation suitable for different types of medical imaging. Pulses from a 10 Hz terawatt laser system with a duration of 150 fs are focused onto a solid high-Z material target, with focal spot intensities reaching 10(18) W/cm(2). The produced plasma emits broadband X-ray radiation with photon energies up to the MeV region. The application of this X-ray radiation offers new features for medical radiography. Our source allows magnification imaging as well as ultrashort single-shot exposures. New contrast imaging techniques making use of an enhanced characteristic line emission are investigated. The experimental set-up also allows the study of ablation phenomena from sub-picosecond laser pulses by means of particle deposition on thin glass plates. Deposition patterns were studied dependent on different plasma-generation parameters.},
  author       = {Gratz, M and Tillman, C and Mercer, I and Svanberg, Sune},
  issn         = {1873-5584},
  language     = {eng},
  pages        = {443--447},
  publisher    = {Elsevier},
  series       = {Applied Surface Science},
  title        = {X-ray generation for medical applications from a laser-produced plasma},
  url          = {http://dx.doi.org/10.1016/0169-4332(95)00455-6},
  volume       = {96-8},
  year         = {1996},
}