Cadmium at GANIL

Owned by BARUE Christophe
Last updated: Mar 18, 2019


Ion / Production method

106Cd21+ / Oven LCO HT

Compound used

106CdO (enriched > 90%)

vapor pressure ~ 10-4 Torr at 520°C

 

Aspect

Chemical sensitivity

Powder, stable ?

LCO HT - Ta Outlet diam. 2 mm

 

 

Ion source parameters

ECR4-14GHz

RF power : 139 W

Mixing gaz : O2

Oven power : 0.5 W (~100°C off line)

Oven position : +6 mm

Source voltage : 25kV/1.0mA

Intensity : 3.7 µA (106Cd21+)

For <I21+> =1.4 µA during 11 days :

Consumption : 0.034 mg/h

Total ionization efficiency :  10%

CommentsGood ionization efficiency

More details can be found in this publication : " Status Report on Metallic Beam Production at GANIL/SPIRAL 2 ", 22th ECRIS (Busan 2016).

Spectrum obtained with ECR4 and optimized on 106Cd21+ (3.7 μA). RF power: 139 W (17W reflected), 25 kV/1.0 mA, buffer gas O2: 6E-6 mbar at injection, 2E-7 mbar at extraction, oven power 0.5 W (~100°C off line), oven position: +6 mm inside the plasma chamber, no bias, coils: 1071A/1044A. Transport efficiency up to the faraday cup: ~50%.

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