Bez nadpisu

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New Tandetron Laboratory at NPI Vladimír
Havránek, Vladimír Hnatowicz, Anna
Macková,Vratislav Perina, Jirí Vacík, Václav
Vosecek, Jirí Novotný, Jirí Bocan Nuclear
Physics Institute ASCR, 250 68 Rež u Prahy
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Important Milestones

• 1964 3.5(5)MV Van de Graaff started operate
• 2005 3MV Tandetron 4130MC from HVEE installed
  (supported by IAEA and ASCR)

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Odkrytý 1985

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Ion lines at the old VdG accelerator
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New experinmental target chamber for simultaneous
IBA
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• Present-day research activities at VdG
• Investigation of thin surface layers and
  multilayers with distinctive mechanical,
  electrical, magnetical, optical, chemical and
  biological properties, proceses of its
  fabrication
• Atmospherical and combustion aerosols research,
  testing of new reference materials, analysis of
  biological and environmental samples
• Comercial, industry and technological research
  activities

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VdG 2004
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Construction of the new Tandetron hall autumn
2004
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Tandetron hall summer 2005
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Transport of Tandetron into new hall 1.9.2005
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November 2005
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Experimental lines

• Ion Channeling RBS (NEC) 2006 (-30deg)
• High Energy Implantation line RBS TOF ERDA
  (NEC, HVEE, Vacuum Praha, INP) 2006 (-10deg)
• Multipurpose for Simultaneous PIXE, PIGE, RBS,
  PESA and other Experimets (Vacuum Praha, INP)
  2007 (30deg)
• Ion Microprobe (Oxford Microbeams) 2008
  (10deg)

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High Energy Implantation Line

• Carrousel for 12 samples of 2,5 inch in diameter.
  
• Step motor control of the carrousel movement
• Maximum energy 2.5MeV per charge state.
• For Si4 it is 10MeV, for H 2.5MeV. The lowest
  available energy is about 300keV
• The typical implanted doses range from 1x108 to
  1x1016 ions/cm2.

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Some examples of implanted ions
Ion Energy keV Dose at/cm2 Substrate Time to complete
H 300 1x1014 Si 1h 40m
H 2500 5x1010 Si 30s
H 2500 1x1014 Polyaniline 36 m
Au 1700 1x1016 Glass 16 h
Au 2 3000 1x1016 Si 2.5 h
O 2000 1x1014 PEEK 1 h
Si 5 12000 1x109 PET 2 s
Small scan area
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RBS-Channeling
The RBS-Channelling setup is only equipment which
was fully supplied by external vendor. It was
bought from NEC company USA and recently
installed at -30 deg. beam line. The target
chamber is equipped with fine goniometer with
five degrees of freedom (x,y,z,?,?) and two
charge particle detectors. Test experiments are
now in progress. There is also a possibility to
add additional x or ?-ray detector, so the PIXE
or PIGE channelling experiments can be performed
in future. The setup will be used for routine
RBS-channelling and RBS measurements.
Channeling software
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Proposed microbeam line
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Thank you for your attention
Vltava River in Rez