Page Comparison

Ion / Production method

 

92Mo16+ / Oven LCO HT
Compound used	MoO3 (enriched > 90%) vapor pressure ~ 10-4 Torr at 900°C
Aspect Chemical sensitivity

Solid

White powder , stable

Image Removed

? Image Added LCO HT Oven - Ta Outlet diam. 2 mm
Ion source parameters	ECR4M-14GHz RF power

370

: 140 W Mixing gaz : O2

/ Sputtering gaz ArSputtering voltage : -1200V/1.4mA

Oven power : 3.5 W (~250°C off line) Oven position : 0 mm Source voltage :

19kV

18kV/

2

1.

4mA

8mA Intensity :

5

4.

5

1 µA (

¹⁸¹Ta24

92Mo16+) For <I16+> =1.25 µA during 6 days : Consumption :

3

1.

0

34 mg/h Total ionization efficiency :

0

1.

75%

0%

Comments

Good beam stability,

Low ionization efficiency

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

Image Added

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%.