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Ion / Production method

181Ta24+ / Sputtering

Compound used

Ta (natural 100%)

 

Aspect

Chemical sensitivity

Solid , stable

 

 

Ion source parameters

ECR4M-14GHz

RF power 370 W

Mixing gaz O2 / Sputtering gaz Ar

Sputtering voltage : -1200V/1.4mA

Max. sputtering yield : 2.0 for Ar at 35keV

Max. sputtering yield : 0.5 for O at 15keV

Source voltage : 19kV/2.4mA

Intensity : 5.5 µA (181Ta24+)

For <I24+> = 4.5 µA during 17 days :

Consumption : 3.0 mg/h

Total ionization efficiency :  0.75%

CommentsGood beam stability, Low ionization efficiency

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