winfred stoffels stoor. plasma research at the group epg winfred stoffels
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Winfred Stoffels STOOR
Plasma research at the group EPG
Winfred Stoffels
Winfred Stoffels STOOR
EPG: Reseach
Aim:
Understanding of technological plasmas
Approach:
Systematic combination of polydiagnostic experimental work with (numerical) plasmamodels
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Winfred Stoffels STOOR
What is a plasma?
•Ionised gas (by electricity, radiation, chemical energy, heat, etc.)•Source of: - energy
- ions- radicals- light
A+, B-, e, radicals
+ -
Winfred Stoffels STOOR
EPG: Themes
Plasma treatment of living tissues
Corona & pulsed discharges
Material science (rf and microwave, complex plasmas)
Extreme plasmas (EUV, laser wake field, hydrogen)
Light
Winfred Stoffels STOOR
EPG: people
Groupleader: Gerrit Kroesen
Scientific staff: 5
Part time professor: 2
Technical support: 4
Postdocs: ~3
PhD students: ~15
(under)graduates/visitors: varying
Winfred Stoffels STOOR
Corona Eddie van Veldhuizen, Sander Nijdam, Tanja Briels
Winfred Stoffels STOOR
Plasma treatment of living tissues (Eva Stoffels, Roxana Tipa)
Winfred Stoffels STOOR
Complex plasmas Winfred Stoffels, Job Beckers
Winfred Stoffels STOOR
EUV plasmas Joost van der Mullen, ASML
Winfred Stoffels STOOR
Light Winfred Stoffels, Philips
Tanya Nimalasuriya, Mark Beks, Arjan Flikweert:
Segregation and modeling of Metal halide lamps (ISS,
centrifuge)
Hjalmar Mulders: molecular lamps
Ana Sobota: ignition of HID lamps
Winfred Stoffels STOOR
Plasma diagnostics
Electrons: Thomson (ne, Te)
absolute line intensity & Bolzmann/Saha (ne, Te,LTE)
microwave resonance
langmuir probes
Ions: massa spectrometry
Doppler resolved LIF (IEDF)
langmuir probes (ni,Ti)
absolute line intensity &Saha/Bolzmann (ni, Ti,LTE)
laser induced photo-detachment (neg ionen)
Winfred Stoffels STOOR
Plasma diagnosticsAtoms & chemistry : absolute line intensity & Bolzmann/Saha (ne, Te,LTE)
laser absorptiom (atom/molecules )
FTIR (molecule chemistry)
LIF
XRA/XRF
ellipsometry (surface chemistry)
E-field: Stark splitting/shifting of Rydberg states (E-field)
probes (potential)
Dynamisch behavior: sub-ns cameras
I-V metingen
Winfred Stoffels STOOR
Plasma model (Jan van Dijk)
modular numerical plasma model (2D3D)
particle and energy balance
elementary processes
gas flow (convection-diffusion)
radiation
energy coupling (dc, rf, microwave)
dynamic behavior
LTE & non-LTE
Winfred Stoffels STOOR
Traineeships
Experimental, numerical or combined work on technological
plasmas
External traineeships: Philips, ASML, OCE, foreign university
Mostly together with a PhD student and staff member
Winfred Stoffels STOOR
After graduation at EPG
~50% PhD study at EPG, PMP or other groups
~50% industrial R&D
Philips
ASML
other companies
Winfred Stoffels STOOR
Welcome at EPG
N laag
Second floor
C wing (above first year practicum)