Details
| Original language | English |
|---|---|
| Article number | 4397 |
| Journal | MATERIALS |
| Volume | 14 |
| Issue number | 16 |
| Publication status | Published - 5 Aug 2021 |
Abstract
Ultrashort pulse laser machining is subject to increase the processing speeds by scaling average power and pulse repetition rate, accompanied with higher dose rates of X-ray emission generated during laser–matter interaction. In particular, the X-ray energy range below 10 keV is rarely studied in a quantitative approach. We present measurements with a novel calibrated X-ray detector in the detection range of 2–20 keV and show the dependence of X-ray radiation dose rates and the spectral emissions for different laser parameters from frequently used metals, alloys, and ceramics for ultrafast laser machining. Our investigations include the dose rate dependence on various laser parameters available in ultrafast laser laboratories as well as on industrial laser systems. The measured X-ray dose rates for high repetition rate lasers with different materials definitely exceed the legal limitations in the absence of radiation shielding.
Keywords
- Dose rate, Micromachining, Ultrafast laser, X-ray emission, X-ray spectrum
ASJC Scopus subject areas
- Materials Science(all)
- Physics and Astronomy(all)
- Condensed Matter Physics
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In: MATERIALS, Vol. 14, No. 16, 4397, 05.08.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - X-ray dose rate and spectral measurements during ultrafast laser machining using a calibrated (High-sensitivity) novel x-ray detector
AU - Mosel, Philip
AU - Sankar, Pranitha
AU - Düsing, Jan Friedrich
AU - Dittmar, Günter
AU - Püster, Thomas
AU - Jäschke, Peter
AU - Vahlbruch, Jan Willem
AU - Morgner, Uwe
AU - Kovacev, Milutin
N1 - Funding Information: Acknowledgments: The publication of this article was funded by the Open Access Fund of the Leibniz Universität Hannover. Funding: German Research Foundation under Germany’s Excellence Strategy within the Cluster of Excellence Quantum Frontiers EXC-2123 and Germany’s Excellence Strategy within the Cluster of Excellence PhoenixD (EXC 2122, Project ID 390833453).
PY - 2021/8/5
Y1 - 2021/8/5
N2 - Ultrashort pulse laser machining is subject to increase the processing speeds by scaling average power and pulse repetition rate, accompanied with higher dose rates of X-ray emission generated during laser–matter interaction. In particular, the X-ray energy range below 10 keV is rarely studied in a quantitative approach. We present measurements with a novel calibrated X-ray detector in the detection range of 2–20 keV and show the dependence of X-ray radiation dose rates and the spectral emissions for different laser parameters from frequently used metals, alloys, and ceramics for ultrafast laser machining. Our investigations include the dose rate dependence on various laser parameters available in ultrafast laser laboratories as well as on industrial laser systems. The measured X-ray dose rates for high repetition rate lasers with different materials definitely exceed the legal limitations in the absence of radiation shielding.
AB - Ultrashort pulse laser machining is subject to increase the processing speeds by scaling average power and pulse repetition rate, accompanied with higher dose rates of X-ray emission generated during laser–matter interaction. In particular, the X-ray energy range below 10 keV is rarely studied in a quantitative approach. We present measurements with a novel calibrated X-ray detector in the detection range of 2–20 keV and show the dependence of X-ray radiation dose rates and the spectral emissions for different laser parameters from frequently used metals, alloys, and ceramics for ultrafast laser machining. Our investigations include the dose rate dependence on various laser parameters available in ultrafast laser laboratories as well as on industrial laser systems. The measured X-ray dose rates for high repetition rate lasers with different materials definitely exceed the legal limitations in the absence of radiation shielding.
KW - Dose rate
KW - Micromachining
KW - Ultrafast laser
KW - X-ray emission
KW - X-ray spectrum
UR - http://www.scopus.com/inward/record.url?scp=85112339384&partnerID=8YFLogxK
U2 - 10.3390/ma14164397
DO - 10.3390/ma14164397
M3 - Article
AN - SCOPUS:85112339384
VL - 14
JO - MATERIALS
JF - MATERIALS
SN - 1996-1944
IS - 16
M1 - 4397
ER -