Jožef Stefan Institute, Ljubljana, Slovenia
←
→
Page content transcription
If your browser does not render page correctly, please read the page content below
Jožef Stefan Institute, Ljubljana, Slovenia
Department of low and medium energy physics
1. Introduction: department, accelerator laboratory
2. Accelerator operation/maintenance: staff and financing
3. Five experimental stations: staff and financing of the research
4. International access/cooperation
j=σT4 Institut Jožef Stefan
Department of Low and Medium Energy Physics, Jožef Stefan Institute Personnel: 40, budget 2.8 MEUR • Basic research in nuclear and atomic physics • Environmental radiological monitoring • Ion accelerator laboratory • Calibrated radiation fields (gamma, X-ray) • Applications of charge particle and photon beams at large experimental facilities worldwide j=σT4 Institut Jožef Stefan
1. Introduction
Tandem accelerator at JSI:
INSIBA
High-brightness Nuclear
H- source: multicusp physics
MeV-SIMS
Object slit
Q-lens
PW-WDX
Focused external beam
He3
Five measuring stations
at four beamlines
j=σT4 Institut Jožef Stefan
2. Accelerator operation/maintenance: staff and financing
Group of people in charge for operation/maintenance:
Primož Vavpetič (head of accelerator operation)
Mitja Kelemen (second operater)
Mirko Ribič (Engineer)
Zdravko Rupnik (Retired, on contract, 70 % of full engagement)
National research agency provides in the frame of
sustaining the national research infrastructure:
58 kEUR for salaries (2.5 men years)
and 118 kEUR for material costs of operation/maintenance.
Missing 0.5 man-year is assured by the ongoing project(s).
Operation: over 4000 beam hours annually. We are operating
without permanent presence of operators
(computer-controlled tandetron and some experimental stations
allow night runs without the presence of the personnel)
j=σT4 Institut Jožef Stefan
3. Five experimental stations:
staff and financing of the research
j=σT4 Institut Jožef Stefan
High-resolution X-ray spectroscopy beamline:
1 tenure, 1 external collaborator (Matjaž Kavčič, Marko Petric)
Since 2017, a three-year national project on battery research, 0.3 FTE.
In 2019, new postdoc within H2020 RADIATE (we are looking for
a candidate).
Curved-crystal x-ray emission
spectrometer in Johansson geometry
j=σT4 Institut Jožef Stefan
INSIBA (In situ IBA analysis)
One tenure (Sabina Markelj)
two PhD students (Matic Pečovnik, Mitja Kelemen)
EUROFusion H2020, 80 kEUR/annum,
Plasma-wall interaction working group
H2020 EURATOM TRANSAT ((TRANSversal Actions for Tritium,
200 kEUR/4 years)
In situ dynamics of
hydrogen in materials
j=σT4 Institut Jožef Stefan
Measuring station for nuclear (astro)physics
activities/team
will be presented in detail by Matej Lipoglavšek
j=σT4 Institut Jožef Stefan
High energy focused ion beam (microprobe) j=σT4 Institut Jožef Stefan
One tenure (Primož Pelicon)
EU Marie Curie individual postdoc, medicine (Esther Punzon Quijorna)
EU Marie Curie Seal of excellence postdoc with national
funding, plant biology (Paula Pongrac)
Postdoc, national project funding, MeV-SIMS (Boštjan Jenčič)
Two members of accelerator team, Primož Vavpetič and Mitja Kelemen,
fully trained to use the microprobe, working on their PhD
ERC complementary national project, new 3-year postdoc/researcher?
position on MeV-SIMS in 2019. We are looking for a candidate...
ERA-NET Arimnet2 „BEST“, agriculture, 40 kEUR/annum
Two national projects on plant biology, 30 kEUR/annum
j=σT4 Institut Jožef StefanIn-air beam
Žiga Šmit (prof. at University,
20% engagement at JSI)
Retired in 2018. On contract, will train his
replacement: Eva Menart, researcher
(conservator) at National museum,
will be 20% engaged at JSI.
Change of generation at this
station.
New project: focused in-air (micro)beam
for biology, parallel beam WDX
New PhD (AdFutura) from Jan. 2019 ?
j=σT4 Institut Jožef Stefan4. International access/cooperation
Transnational access:
2009-2013 within 7th FP EU SPIRIT
2013-2018: „cold TNA operation“: few TNA projects per year.
Beamtime contributed from „in-house“ resources, researchers
covered their travel and stay. Project evaluated/selected in-house.
Jan. 2019- Dec. 2022: H2020 RADIATE: 1500 beamhours, approx. 25
projects in 4 years (170 EUR/hour)
Other ongoing international projects:
FAIR
EUROBIOIMAGING
Helmholtz European Partnering project with HZDR (Dresden)
two IAEA CRPs
j=σT4 Institut Jožef Stefanj=σT4 Institut Jožef Stefan
j=σT4 Institut Jožef Stefan
j=σT4 Institut Jožef Stefan
j=σT4 Institut Jožef Stefan
2. Ongoing research activities of relevance for the call
- In situ dynamics of hydrogen in materials
In situ NRA/RBS allows dynamic experiments with
atomic hydrogen (D) source (HABS) or plasma gun
with samples at controlled temerature (up to 1500 K).
Residual gas monitored by RGA.
j=σT4 Institut Jožef StefanSimultaneous W irradiation (to simulate neutron damage)
and population of defect sites by atomic D
2 Collimator slits 4 mm
In-beam
mesh A
charge
collector
W6+ E=10.8 MeV
Sample at high
temperatures
Heater
Simultaneous W irradiation and D atom
exposure at high temperatures for 4 h
Atom flux=5.4x1018 D/m2s W fluence = 1.4x1018 W/m2
ΓD=8x1022 D/m2 Dose→ 0.47 dpaKP
Displ. Rate = 3*10-5 dpa/s
j=σT4 Institut Jožef StefanDeuterium depth profile with 3He beam
2 mm
A
Heater
NRA analysis d(3He,p)α
Depth profile deconvolution with
SIMNRA and NRADC [7]
j=σT4 Institut Jožef StefanRecent publications
Simultaneous damaging and D exposure - increased D retention compared to
sequential damaging and exposure competition: defect annihilation at
elevated temperatures and defect stabilization by D
j=σT4 Institut Jožef Stefan 20Duoplasmatron configured for 3He beam
production
Construction schematics of the new gas cylinder holder in
the existing block of the duoplasmatron ion source. Three
gas cylinders are now accomodated on the 358
Duoplasmatron deck instead of only one gas cylinder of the
original ion source design. Spares over 70% of earlier
consummed 3He gas.
j=σT4 Institut Jožef StefanResearch leader at JSI: Sabina Markelj
Running international projects:
EUROFUSION programme, Euratom H2020
Work Package on Plasma Facing Components (WP PFC)
TRANSAT: H2020 Euratom program
(2017-2021, budget 4 MEur)
Coordinators: Karine Liger, Christian Grisolia, CEA
„multidisciplinary project focusing on cross-cutting
activities required to improve knowledge on tritium
management in fission and fusion facilities.“
j=σT4 Institut Jožef Stefan- Biomedicine
Laboratorty is a member of national node of the
EU ESFRI Eurobioimaging project (interim phase before ERIC)
(elemental imaging with micro-PIXE, molecular imaging with MeV-SIMS)
j=σT4 Institut Jožef Stefancold finger
attached to the TOF JSI microprobe
sample holder MeV SIMS
(-160 ºC)
SDD,30 mm2,
Peltier-cooled,
UTW+1 µm Al mylar
0.5 keV-7 keV Collimating
slits
On-off axis STIM Scanning
0.4 µm Al OM Q-lens coils
RBS
Beam
Electron spraying
Chopper
HpGe X-Ray, 95 mm2
25 µm Be + 100 µm kapton
HpGe (4 keV-30 keV)
gamma
for PIGE
During the analysis, biological tissue in
freeze-dried or frozen hydrated state
j=σT4 Institut Jožef StefanMulticusp ion source for proton beam production, 2012 j=σT4 Institut Jožef Stefan
Laboratory Bn E Ion source type Accelerator type
[Am rad-2eV-1]
-2 [MeV] and species
Debrecen [10] 0.3 2 RF (H+) VdG (single-ended)
Faure [10] 1.5 3 Duoplasmatron (H+) HV KN VdG (tandem)
Heidelberg [10] 0.05 2.2 Penning (H+) 3MV VdG (single-ended)
Leipzig [10] 20.0 2.25 RF (H+) HVEE Singletron (single-
ended)
Lund-1 [10] 2.0 2.7 RF (H+) NEC 3UH(single-ended)
Lund-2 [10] 7.0 2.55 RF (H+) NEC 3UH(single-ended)
Melbourne [10] 4.5 3 RF (H+) NEC 5U (single-ended)
Oxford [10] 0.6 3 RF (H+) NEC 5SDH-2 (tandem)
Shanghai [10] 0.25 3 Duoplasmatron (H+) NEC 4UH (tandem )
Singapore [10] 30.0 2 RF (H+) HVEC AN2500 (single-
ended)
Sidney [10] 1.0 3 Duoplasmatron (H+) General Ionex tandetron
(tandem)
Ljubljana [1] 1.81 2 Duoplasmatron (H+) HVEE 2MV Tandetron
(tandem)
Ljubljana 14.0 2 Multicusp (H+) HVEE 2MV Tandetron
(tandem)
Sandia National 15.0 3 RF(H+) NEC 3UH-2 (single-ended)
Laboratory*[14]
Singapore* [15] 74 2 RF (H+) HVEE 3.5MV Singletron
Munich* [12] 0.8 17 Multicusp (H+) HVEC 14MV MP tandem
Sendai [16] 2.6 2.4 Duoplasmatron 4.5 MV Dynamitron (single-
(H2+) ended)
Sendai [16] 0.44 2.4 Duoplasmatron (H+) 4.5 MV Dynamitron (single-
ended)
Gradignan [17] 26 2.25 RF (H+) HVEE 3.5MV Singletron
(single-ended)
Pelicon et al, NIM B 2014
4
j=σT Institut Jožef StefanHigh current mode performance of JSI microprobe with 3 MeV proton beam
1μm
2μm
4μm
16 x 16 μm2 10 x 10 μm2 5 x 5 μm2
Ti K PIXE maps recorded with 200 pA of 3 MeV proton beam at the 3 μm cross-like structure,
carved with FIB in thin Ti (60 nm) layer on Si. Beam FWHM equals 600 x 700 nm2. (Vavpetič et
al, ICNMTA 2016, NIM B 2017)
j=σT4 Institut Jožef StefanUser-oriented research programme in biology, medicine by micro-PIXE:
• Fokter et al, Why do some titanium-alloy total hip arthroplasty modular necks fail?, Journal of the mechanical behavior of
biomedical materials 69 (2017) 107–114. (University Medical Centre Maribor)
• Detterbeck et al, Spatially resolved analysis of variation in barley (Hordeum vulgare) grain micronutrient accumulation, New
Phytologist 211 (2016), 1241. (Univ. Bayreuth, Germany)
• Shelef et al, Insights into root structure and function of Bassia indica: water redistribution and element dispersion, Functional
Plant Biology 43 (2016) 620. (Ben Gurion University, Israel)
• Villafort Carvalho et al, Gomphrena claussenii, a novel metal-hypertolerant bioindicator species, sequesters cadmium, but not
zinc, in vacuolar oxalate crystals, New Phytologist 208 (2015), 763. (Wageningen University, Netherlands)
• Lefevre et al, Differential cadmium and zinc distribution in relation to their physiological impact in the leaves of the
Zygophyllum fabago L., Plant, Cell & Environm., 37 (2014), 1299. (Université catholique de Louvain, Belgium)
• Tomić et al, Size-Dependent Effects of Gold Nanoparticles Uptake on Maturation and Antitumor
Functions of Human Dendritic Cells In Vitro, PLOS ONE 9 (2014) e96584. (Military Medical Academy,
Serbia)
• S. P. Singh et al, Spatial X-ray fluorescence micro-imaging of minerals in grain tissues of wheat and related genotypes, Planta
(2014) 240:277–289. (National Agri-Food Biotechnology Institute, India)
2017: Beamtime for: Université catholique de Louvain, University of Jena,
Jagelonian University (Krakow), Centre de Biotechnologie, Borj-Cédria, Tunisia,
Ithemba Labs, SA.
j=σT4 Institut Jožef StefanElemental structure of barley seed: related to genotype and growing conditions
ERA-NET project Arimnet2: Barley Stress Tolerance (BEST), 2016-2019
Selecting the genotypes of barley able to sustain worsening growing
conditions in Mediteranian
Methodology: micro-PIXE, synchrotron for chemical speciation
+ auxillary ICP MS, SIMS, MeV-SIMS
j=σT4 Institut Jožef StefanMolecular imaging by MeV-SIMS j=σT4 Institut Jožef Stefan
Comparison: MeV-SIMS vs. keV SIMS
keV SIMS: 25 KeV Bi3+ beam at TOF.SIMS 5 spectrometer (IONTOF)
MeV-SIMS: 5.8 MeV 35Cl6+ beam.
arginine, normalized to m/z=70
j=σT4 Institut Jožef StefanAlternative approach,
better optimized for
heavy ion focused beam
(PhD Boštjan Jenčič):
Randomly incoming
primary ions (5000 ions /s)
Each primary ion detected
after passing the tissue
Upon arrrival of primary ion:
Start TOF
Delayed axtraction
Beam cleaning during TOF
cycle
Mass resolution 2000
Lateral resolution 800 nm
j=σT4 Institut Jožef StefanArginine
4
Cloete et al, Anal. Meth. 2017
j=σT Institut Jožef StefanChemical speciation by
ion-induced X-ray emission (PIXE)
Curved-crystal x-ray emission
spectrometer in Johansson geometry
Project leader at JSI: Matjaž Kavčič
Marie Curie ITN SPRITE PhD: Marko Petric
j=σT4 Institut Jožef StefanChemical state analysis of low-Z elements (P, S, Cl):
High energy resolution K core-to-core and K valence-to core x-ray emission spectra
were recorded on a series of compounds covering the full range of oxidation states and
different local symmetries.
The ab initio quantum chemical calculations were performed using the StoBe-deMon
molecular/cluster package based on the density functional theory (DFT).
PhD work of M. Petric: Electronic structure of P, S, and Cl
studied by high energy resolution XES
M. Petric et al., Anal. Chem. 2015, 87, 5632.
4
j=σT Institut Jožef Stefan M. Petric et al., Inorg. Chem. 2016, 55, 5328.Characterization of sulfur within Li-S battery using in-situ (in-operando) HR-PIXE:
Li-ion: Li-S:
cathode capacity ~ 250 mAh/g theoretical cathode capacity ~ 1675 mAh/g
energy density ~ 800 Wh/kg theoretical energy density ~ 2600 Wh/kg
(S. Evers, L. F. Nazar, Acc. Chem. Res. 2013 (46), 1135-1143)
Conventional
Li-S cell:
S8 insoluble
Li2Sx
soluble in liquid electrolyte Li2S insoluble
j=σT4 Institut Jožef Stefan M. Kavčič et al., J. Phys. Chem. C 2016, 120, 24568−24576.K XES measurements on Li2SX standards: j=σT4 Institut Jožef Stefan
In-situ (in-operando) S K PIXE measurements on Li-S battery:
In-situ cell:
HR-PIXE measurements:
Ep = 2 MeV, Ip = 40 nA
tacq = 30 min
j=σT4 Institut Jožef Stefanj=σT4 Institut Jožef Stefan
Parallel Beam Wavelength Energy Dispersive X-ray spectrometer:
a: target holder, b: polycapillary X-ray optics (semilens),
c: Bragg flat crystal, d: detector
Ongoing integration in the in-air microprobe
j=σT4 Institut Jožef StefanHigh energy resolution (5-20 eV) „Large“ solid angle (approx. 0.1 strd), comparable to small Si(Li) j=σT4 Institut Jožef Stefan
Detection of Cd in biological material: EDX: Cd L line detection obstructed
by very strong potassium Kα line. PB WDX solves the problem. Spectrum
measured at the dried material of Cd-accumulated plant Thlaspi Praecox
j=σT4 Institut Jožef Stefan3. Proposed JSI engagement in TNA
• In situ / in operando RBS/NRA/ERDA/PIXE
• Hydrogen dynamics in materials, 3He NRA, ERDA
• Biomedicine with micro-PIXE and MeV-SIMS
• Chemical speciation with HR-PIXE
• Archeometry with in-air IBA
j=σT4 Institut Jožef Stefan4. Proposed JRA actions
SPIRIT2020
- In situ / in operando analysis
- Advanced imaging IBA: „one-shot“ imaging with pixelated
detectors, stigmatic imaging etc
- Digital acquisition, high frequency ADC/data storage
systems/FPGA custom systems
- Structural damaging by implantation (neutron damage
simulation, electric/magnetic properties)
j=σT4 Institut Jožef Stefan5. Miscellaneous
Some potential partners:
• University of Jyväskylä (X-ray transition edge detector
for PIXE, He ion microscope...)
• IRB Zagreb (IBIC, diamond detectors, dual beam...)
• ETH Zurich (gas detectors, AMS, MeV-SIMS...)
j=σT4 Institut Jožef StefanYou can also read
