|IC-100 heavy ion cyclic implanter was designed at the FLNR JINR in 1985 for acceleration of ions from carbon(12C+2) to argon (40Ar+7) with fixed energy of 1.2 MeV/nucl at HF system forth harmonic and of 0.6 MeV/nucl at HF sixth harmonic.
Special-purpose beam transportation line with polymer film irradiation unit has been created as well as a box for heavy ion beam research. Two-plane beam scan system was installed in the extracted beam transportation line  so that to implant ions uniformly over a 600×200 mm target.PIG ion source was used at the accelerator to determine the accelerated ion mass range. Years 2003-2005 update resulted in IC-100 being equipped with external axial beam injection system and superconducting ECR ion source which allowed to produce intensive beams of highly charged ions of xenon, iodine, krypton, argon and other heavy elements of the Periodic Table. Helix inflector is installed in the center of the accelerator.
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- TECHNICAL PARAMETERS
Parameter Realized in operation Accelerated ions 22Ne+4 40Ar+7
Range of accelerated ions A/Z = 5.545.95 Acceleration harmonic 4 Ion energy 0.9 ÷ 1.1 MeV/nucl Average magnetic field 1.7841.93 T HF frequency 19.8 ÷ 20.6 МГц Injection energy 14 ÷ 15 kV Injection line vacuum 1.5·10-7 Torr Cyclotron operating vacuum 5·10-8 Torr Dee voltage 45455 kV Efficiency of injection line beam transportation
0.540.8 ECR ion source beam emittance after separation
and collimation in analyzing magnet
~ 250 π mm·mrad (estimate)
Injection line acceptance ~ 220 mm·mrad (estimate) Accelerated and extracted 86Kr+15 beam intensity 1.4·1012 particles/sec
Accelerated and extracted 132Xe+23 beam intensity ~ 1012 particles/sec Uniformity of track membrane pore density ± 10% Long-term stability of extracted beam current ±10415% Uniformity of hole density after the multiple film passage < ± 5%
- ECR source TECHNICAL PARAMETERS:
IC-100 cyclotron was designed to accelerate multicharged ions with A/Z = 5.3 ÷ 6.0, which imposes rigorous criterions on production of intensive beams of highly charged ions of heavy elements. For this purpose the FLNR in cooperation with the LHE research scientists developed superconductive ECR ion source of about 3 T axial field level and 18 GHz SHF heating frequency [3,4]. After the injected beam separation and collimation on a diaphragm 20 mm in diameter 86Kr+15 ion beam current amounts to 60-70 microampere and 132Xe+23 ion beam current comes to 35 microampere.
- ION BEAM TABLE
Element Ion A/Z FHF MHZ Target beam current in the experiments Maximum beam current Neon 22Ne+4 5.5 20.160 0.7 microampere Argon 40Ar+7 5.714 20.200 2.5 microampere Iron 56Fe+10 5.6 20.240 0.5 microampere Krypton 86Kr+15 5.733 20.200 3.5 microampere 3.5 microampere Iodine 127I+22 5.773 20.200 0.25 microampere Xenon 132Xe+23 5.739 20.180 3.7 microampere 3.7 microampere Xenon 132Xe+24 5.5 20.180 0.6 microampere Tungsten 182W+32 5.6875 20.142 0.015 microampere 0.015 microampere Tungsten 184W+31 5.9355 20.142 0.035 microampere 0.035 microampere Tungsten 184W+32 5.75 20.142 0.017 microampere 0.017 microampere