Skip to end of metadata
Go to start of metadata

You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 15 Next »


Ion / Production method

92Mo16+ / Oven LCO HT

Compound used

MoO3 (enriched > 90%)

vapor pressure ~ 10-4 Torr at 900°C

 

Aspect

Chemical sensitivity

White powder , stable ?

LCO HT Oven - Ta Outlet diam. 2 mm

 

 

Ion source parameters

ECR4M-14GHz

RF power : 140 W

Mixing gaz : O2

Oven power : 3.5 W (~250°C off line)

Oven position : 0 mm

Source voltage : 18kV/1.8mA

Intensity : 4.1 µA (92Mo16+)

For <I16+> =1.25 µA during 6 days :

Consumption : 1.34 mg/h

Total ionization efficiency :  1.0%

CommentsLow 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 ECR4M and optimized on 92Mo16+ (4.1 μA). RF power: 140 W (37 W reflected), 18 kV/1.8 mA, buffer gas O2: 8.5E-6 mbar at injection, 2E-7 mbar at extraction, oven power 3.5 W (~250°C off line), oven position: 0 mm inside the plasma chamber, no bias, coils: 940A/730A. Transport efficiency up to the faraday cup: ~40%.

 

 

  • No labels