ADITA

Accumulation of ions in a linear radiofrequency trap


BACKGROUND

Transporting charged particles between different traps has become an important feature in high-precision spectroscopy experiments. A major issue during transport is the heating of the transferred atoms or molecules and the speed of the shuffling process. As a consequence, applied protocols use a cooling mechanism and/or a custom protocol to limit heating and reduce perturbation and loss of the sample. ADITA is an accumulation and a transfer technique for ions, that is faster than the state of the art and that does not require cooling.

 

HOW IT WORKS

A radio frequency quadrupole ion trap is separated into two parts by a central electrode. An ion cloud is constantly confined within the quadrupole ion trap. Both parts of the trap are asymmetrical, due to their geometry and/or the introduction of a contact potential in one of the two parts of the trap.

The cloud of confined ions detects a variation of electric field when the potential of the central electrode is changed, which causes it to move.

 

KEY BENEFITS vs. STATE OF THE ART

• can be carried out under ultra-high vacuum conditions and in the absence of buffer-gas cooling, laser cooling or any other cooling mechanism

 

DEVELOPMENT STATUS

• pre-industrial prototype

 

APPLICATIONS

• Microwave atomic clocks

• Mass spectroscopy for detecting traces or exotic ions

 

 

En savoir plus sur cette technologie

Axes & sous-axes :
Analyse & fabrication de matériaux avancés, Procédés industriels

Etat Propriété Intellectuelle :
Brevet

Partenariats :

Propriétaires :
Aix-Marseille Université, CNRS

Maturité :