stahl-electronics.com - Rotating Wall and Paul Trap drives

Picture: RF Generator for Ion Traps HF-DR 3.5-900 FL

Key features:

ultra precise amplitude, stable on 5×10^-5 level, for outstanding ion coherence
USB remote control
Fast shut-off-option for ion ejection (<< 1 μs)
type HF-DR, 1.0 to 6.5 MHz, up to 1800 V_pp differentially (optionally up to 30MHz)

Typical Application:

Ion traps for precision experiments and quantum computation / quantum simulation

Please read more in the

Data Sheet (pdf, 3.73 MB)

The purpose of the HF-Drive Trapping Field Generator is to create a sinus-shaped output voltage at high amplitudes and high frequencies, which can be used to store ions in a Paul Trap, or to run a RFQ (radio frequency quadrupole) structure for trapping and guiding ions or other electrically charged particles. Unlike power rf generators, the outputs are designed to drive purely capacitive loads, like electrical electrodes. The device is housed in a standard 19-inch rack-mount case.

Picture: HF-Drive: Paul Trap field generator
with amplitude and phase control

High Power Version:

HF-Drive 3.5 - 1600 (3200 V_pp differentially, 3.5MHz)
HF-Drive 5.5 - 1250 (2500 V_pp differentially, 5.5MHz)

Please read more in the

User Manual (pdf, 1.51 MB)

Broadband Version, Instant Turn On/Off

Picture: HF-D 200A: 200V_pp RF drive for Paul Traps

This devices feature a fast-turn-on/off capability to capture ions in flight. Other common RF drives usually require a certain amount of time to build up the nominal output voltage since they are based on a resonant voltage transformation. In contrast the RF drive HF-D series consists of broadband devices which allow for instant turn-on and fast turn-off of the AC output voltage. The devices are housed in a standard 19-inch rack-mount case.

Main Features:

RF drive amplifier for ion traps
up to 600V_pp into 100pF load
f = 360kHz to 1.5MHz, model dependent
non resonant broadband design
precision voltage stabilisation (device option)

Please read more in the

User Manual (pdf, 1.79 MB) and the

Data Sheet (pdf, 1.36 MB)

You may also be interested in the former version HF-D 200, which is in use at

GANIL, France:

Short Form Data Sheet (pdf, 246 KB)

Picture: Our new QUAD 1-10 rotating wall drive is
designed to create a rotating dipole or quadrupole
electrical field inside a Penning Ion Trap

Our new QUAD 1-10 rotating wall drive is designed to create a rotating dipole or quadrupole electrical field inside a Penning Ion Trap. The resulting electrodynamical "rotating wall" enables fast compression of big ion clouds after loaded into the trap. The QUAD 1-10 represents a tool to handle a wide range of ions/plasma rotation frequencies with respect to this novel application.

User Manual (pdf, 3.42 MB)

Picture: The QUAD 1-5b rotating wall drive is intended to create an electric rotating dipole or quadrupole field
inside a Penning Ion Trap. It's e.g. in use at the
University of Mainz, Department of Nuclear
Chemistry,

AG Nörtershäuser.

The QUAD 1-5b rotating wall drive is a Precision Wideband Phase Shifter in combination with output amplifiers, dedicated for compression of non-neutral plasmas in Ion Traps. It provides 4 phase shifted outputs with up to 20Vpp Amplitude. It operates in a wide frequency range from 100kHz to 5MHz. Small mismatches of amplitude and phase are provided over the entire frequency range.

User Manual (pdf, 3.49 MB)