Nickel at GANIL

Owned by Hannu Koivisto
Last updated: Mar 18, 2019 by BARUE Christophe

 

 

Nickel with Phoenix-V2 at LPSC

Ion / Production method

58Ni19+ / Oven LCO HT

Compound used

Ni metal natural (68%)

vapor pressure ~ 7.10-3 Torr at 1500°C

 

Aspect

Chemical sensitivity

solid, stable


LCO HT Oven without Ta outlet

 

 

Ion source parameters

Phoenix-V2 18GHz

RF power : 1.7 kW

Mixing gaz : O2

Oven power : 71 W (~1600°C off line)

Oven position : 0 mm

Source voltage : 40kV/4.7mA

Intensity : 19 µA (58Ni19+)

For <I19+> =20 µA during 2h :

Consumption : 0.4 mg/h

Total ionization efficiency :  6 %

Comments
  • The metal is melt off-line in the oven container
  • When introducing the oven into the source, the axial magnetic field must be off to prevent the magnetic nickel from escaping into the plasma.
  •  The Tantalum orifice located at the mouth of the oven is not used to reduce metal condensation.

More details can be found in this publication : " Metal beam developments for the SPIRAL 2 project ", 15th ICIS (Chiba 2013).

Spectrum optimized on Ni19+ obtained at LPSC with Phoenix-V2, Oven power 71W-18V-19.3A (1500°C off line), Slits FH13 ± 5 mm, RF: 1.68 kW (67W reflected), Source voltage: 40.0kV / 9.1mA (~ 4.7 mA réel), Biased star: - 36 V / 0.5 mA, buffer gaz O2, extraction pressure: 1.4E-8 mbar, BPI-BPM-BPE cons : 1230 A / 1280 A / 1291 A, BPI-BPM-BPE lu : 1125 A / 1181 A / 1294 A, Optics: SOL11 : 140.37 A, D11 : 65.49 A, Q11 : 20.23 A, Q12 : 41.49 A, Q13 : 54.29 A.

 

Nickel with ECR4M at GANIL (MIVOC Method) :

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