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Emission and dose characterization of the 1 kHz repetition rate high-Z metal K α source driven by 20 mJ femtosecond pulses

Reklaitis, Jonas ; Barkauskas, Vytenis LU ; Plukis, Artūras ; Kovalevskij, Vitalij ; Gaspariūnas, Mindaugas ; Germanas, Darius ; Garankin, Jevgenij ; Stanislauskas, Tomas ; Jasiūnas, Kęstutis and Remeikis, Vidmantas (2019) In Applied Physics B: Lasers and Optics 125(3).
Abstract


We present the hard X-ray generation of K
α
lines in high-Z elements – platinum and tungsten – targets using the kHz repetition rate TW-class 850 nm, 10 fs laser pulses. The estimated Pt and W Kα1 X-ray photon flux from the recorded spectrum was 1.3 × 10
7
and 1.4 × 10
7
 photons/s,... (More)


We present the hard X-ray generation of K
α
lines in high-Z elements – platinum and tungsten – targets using the kHz repetition rate TW-class 850 nm, 10 fs laser pulses. The estimated Pt and W Kα1 X-ray photon flux from the recorded spectrum was 1.3 × 10
7
and 1.4 × 10
7
 photons/s, respectively, in 2π solid angle. The calculated values of the photon conversion efficiency were 1.3 × 10
- 8
for Pt Kα1 and 9 × 10
- 9
for W Kα1. The additional experimental bremsstrahlung-induced dose measurements and modeling were performed. The correspondence between experimental and modeling data for the dose evaluation was found. The dose rate up to 25 μ Sv/h was measured on the top of the X-ray generation chamber.

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author
; ; ; ; ; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
Applied Physics B: Lasers and Optics
volume
125
issue
3
article number
41
publisher
Springer
external identifiers
  • scopus:85061505123
ISSN
0946-2171
DOI
10.1007/s00340-019-7155-6
language
English
LU publication?
no
id
050f6bfc-f3ea-470c-a97f-a1254fda2999
date added to LUP
2019-05-20 10:35:12
date last changed
2025-10-14 08:54:46
@article{050f6bfc-f3ea-470c-a97f-a1254fda2999,
  abstract     = {{<p><br>
                                                         We present the hard X-ray generation of K                             <br>
                            <sub>α</sub><br>
                                                          lines in high-Z elements – platinum and tungsten – targets using the kHz repetition rate TW-class 850 nm, 10 fs laser pulses. The estimated Pt and W Kα1 X-ray photon flux from the recorded spectrum was 1.3 × 10                             <br>
                            <sup>7</sup><br>
                                                          and 1.4 × 10                             <br>
                            <sup>7</sup><br>
                                                          photons/s, respectively, in 2π solid angle. The calculated values of the photon conversion efficiency were 1.3 × 10                             <br>
                            <sup>- 8</sup><br>
                                                          for Pt Kα1 and 9 × 10                             <br>
                            <sup>- 9</sup><br>
                                                          for W Kα1. The additional experimental bremsstrahlung-induced dose measurements and modeling were performed. The correspondence between experimental and modeling data for the dose evaluation was found. The dose rate up to 25 μ Sv/h was measured on the top of the X-ray generation chamber.                         <br>
                        </p>}},
  author       = {{Reklaitis, Jonas and Barkauskas, Vytenis and Plukis, Artūras and Kovalevskij, Vitalij and Gaspariūnas, Mindaugas and Germanas, Darius and Garankin, Jevgenij and Stanislauskas, Tomas and Jasiūnas, Kęstutis and Remeikis, Vidmantas}},
  issn         = {{0946-2171}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  publisher    = {{Springer}},
  series       = {{Applied Physics B: Lasers and Optics}},
  title        = {{Emission and dose characterization of the 1 kHz repetition rate high-Z metal K                          
                        <sub>α</sub>
                                                  source driven by 20 mJ femtosecond pulses}},
  url          = {{http://dx.doi.org/10.1007/s00340-019-7155-6}},
  doi          = {{10.1007/s00340-019-7155-6}},
  volume       = {{125}},
  year         = {{2019}},
}