Energetic electrons and x-ray photons from multiterawatt Ti: Sapphire lasers

P. V. Nickles; M. P. Kalachnikov; P. J. Warwick; K. A. Janulewicz; W. Sandner; U. Jahnke; D. Hilscher; M. Schnürer; R. Nolte; A. Rousse

doi:10.1070/QE1999v029n05ABEH001505

Energetic electrons and x-ray photons from multiterawatt Ti: Sapphire lasers

P. V. Nickles
, M. P. Kalachnikov
, P. J. Warwick
, K. A. Janulewicz
, W. Sandner
, U. Jahnke
, D. Hilscher
, M. Schnürer
, R. Nolte
, A. Rousse

Research output: Contribution to journal › Article › peer-review

Abstract

The energy distribution and yield of electrons and hard x-ray photons were investigated by irradiating tungsten and tantalum targets with ∼30 fs pulses in the intensity range 10¹⁸-10¹⁹ W cm^-2 by using the Laboratoire d'Optique Appliquée (LOA) as well as the Max Born Institut (MBI) multiterawatt Ti : sapphire lasers. For the measurement of the hard x-ray emission in the energy range from 15 keV to 700 keV at the LOA a 9-channel spectrometer of calibrated thermoluminescence detectors (TLD) was used. The scaling of the hard x-rays was studied by varying the incident laser energy within one order of magnitude and the pulsewidth by a factor of 5. The hot electron output was investigated in the range 300 keV-1 MeV with the new MBI Ti : sapphire laser by using a time-of-flight spectrometer. The results indicate a sensitive interplay between the temporal laser shape and laser intensity.

Original language	English
Pages (from-to)	444-448
Number of pages	5
Journal	Quantum Electronics
Volume	29
Issue number	5
DOIs	https://doi.org/10.1070/QE1999v029n05ABEH001505
Publication status	Published - 1 May 1999

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@article{4057ca8de7eb4288b66b2d7ba4e8ae94,

title = "Energetic electrons and x-ray photons from multiterawatt Ti: Sapphire lasers",

abstract = "The energy distribution and yield of electrons and hard x-ray photons were investigated by irradiating tungsten and tantalum targets with ∼30 fs pulses in the intensity range 1018-1019 W cm-2 by using the Laboratoire d'Optique Appliqu{\'e}e (LOA) as well as the Max Born Institut (MBI) multiterawatt Ti : sapphire lasers. For the measurement of the hard x-ray emission in the energy range from 15 keV to 700 keV at the LOA a 9-channel spectrometer of calibrated thermoluminescence detectors (TLD) was used. The scaling of the hard x-rays was studied by varying the incident laser energy within one order of magnitude and the pulsewidth by a factor of 5. The hot electron output was investigated in the range 300 keV-1 MeV with the new MBI Ti : sapphire laser by using a time-of-flight spectrometer. The results indicate a sensitive interplay between the temporal laser shape and laser intensity.",

author = "Nickles, \{P. V.\} and Kalachnikov, \{M. P.\} and Warwick, \{P. J.\} and Janulewicz, \{K. A.\} and W. Sandner and U. Jahnke and D. Hilscher and M. Schn{\"u}rer and R. Nolte and A. Rousse",

year = "1999",

month = may,

day = "1",

doi = "10.1070/QE1999v029n05ABEH001505",

language = "English",

volume = "29",

pages = "444--448",

journal = "Quantum Electronics",

issn = "1063-7818",

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TY - JOUR

T1 - Energetic electrons and x-ray photons from multiterawatt Ti

T2 - Sapphire lasers

AU - Nickles, P. V.

AU - Kalachnikov, M. P.

AU - Warwick, P. J.

AU - Janulewicz, K. A.

AU - Sandner, W.

AU - Jahnke, U.

AU - Hilscher, D.

AU - Schnürer, M.

AU - Nolte, R.

AU - Rousse, A.

PY - 1999/5/1

Y1 - 1999/5/1

N2 - The energy distribution and yield of electrons and hard x-ray photons were investigated by irradiating tungsten and tantalum targets with ∼30 fs pulses in the intensity range 1018-1019 W cm-2 by using the Laboratoire d'Optique Appliquée (LOA) as well as the Max Born Institut (MBI) multiterawatt Ti : sapphire lasers. For the measurement of the hard x-ray emission in the energy range from 15 keV to 700 keV at the LOA a 9-channel spectrometer of calibrated thermoluminescence detectors (TLD) was used. The scaling of the hard x-rays was studied by varying the incident laser energy within one order of magnitude and the pulsewidth by a factor of 5. The hot electron output was investigated in the range 300 keV-1 MeV with the new MBI Ti : sapphire laser by using a time-of-flight spectrometer. The results indicate a sensitive interplay between the temporal laser shape and laser intensity.

AB - The energy distribution and yield of electrons and hard x-ray photons were investigated by irradiating tungsten and tantalum targets with ∼30 fs pulses in the intensity range 1018-1019 W cm-2 by using the Laboratoire d'Optique Appliquée (LOA) as well as the Max Born Institut (MBI) multiterawatt Ti : sapphire lasers. For the measurement of the hard x-ray emission in the energy range from 15 keV to 700 keV at the LOA a 9-channel spectrometer of calibrated thermoluminescence detectors (TLD) was used. The scaling of the hard x-rays was studied by varying the incident laser energy within one order of magnitude and the pulsewidth by a factor of 5. The hot electron output was investigated in the range 300 keV-1 MeV with the new MBI Ti : sapphire laser by using a time-of-flight spectrometer. The results indicate a sensitive interplay between the temporal laser shape and laser intensity.

U2 - 10.1070/QE1999v029n05ABEH001505

DO - 10.1070/QE1999v029n05ABEH001505

M3 - Article

AN - SCOPUS:0033130533

SN - 1063-7818

VL - 29

SP - 444

EP - 448

JO - Quantum Electronics

JF - Quantum Electronics

IS - 5

ER -

Energetic electrons and x-ray photons from multiterawatt Ti: Sapphire lasers

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