Momentum Spectroscopy
Cold Target Recoil Ion Momentum Spectroscopy (COLTRIMS) is an experimental technique for investigating the correlated dynamics of particles on the atomic scale. The reaction microscope comprises a supersonic gas-jet target, well-defined electrostatic and magnetic fields, and position- and time-sensitive detectors, such as RoentDek DLDs or HEX detectors. Subsequent data acquisition and processing with RoentDek electronics and software allow the initial three-dimensional momenta of the particles to be reconstructed, providing detailed insight into the correlated dynamics of ionization processes.
RoentDek builds custom-designed COLTRIMS systems ranging from complete setups to individual and modular spectrometer and supersonic gas-jet solutions. In addition to COLTRIMS systems, RoentDek also provides solutions for Velocity Map Imaging (VMI) applications.
To find the right solution for your needs and develop new aspects tailored to your specific requirements, please contact us.
Complete Setups
- beam delivery system including beam dump
- supersonic gas-jet system incl. jet dump
- main chamber incl. reaction microscope, spectrometer, electrostatic and magnetic fields, and position- and time-sensitive detectors
- electronics and software for data acquisition, processing and analysis
- vacuum pumping system for HV/UHV conditions
Spectrometers
- modularly designed spectrometers for different detector sizes
- adjustable spectrometer length and electrostatic field geometry for application-specific requirements
- most RoentDek target chambers allow for a fixed-to-the-chamber mounting option in addition
Complete Setups
- beam delivery system including beam dump
- supersonic gas-jet system incl. jet dump
- main chamber incl. reaction microscope, spectrometer, electrostatic and magnetic fields, and position- and time-sensitive detectors
- electronics and software for data acquisition, processing and analysis
- vacuum pumping system for HV/UHV conditions
Spectrometers
- modularly designed spectrometers for different detector sizes
- adjustable spectrometer length and electrostatic field geometry for application-specific requirements
- most RoentDek target chambers allow for a fixed-to-the-chamber mounting option in addition
Complete Systems were designed for:
ARG: CAB, Bariloche
AUS: Griffith University, Brisbane
BRA: PUC, Rio de Janeiro
CAN: NRC, Ottawa
JOR: HU, Zarqa
JPN: Kashiwa Tokyo Univ. Tokyo University TAGEN, Sendai AIST, Tsukuba RIKEN, Tokyo (2x)
USA: Auburn University AL ANL, Argonne IL LBL, Berkeley CA KSU, Manhattan KS University of Rochester NY
Numerous other groups running COLTRIMS-type experiments (Velocity Imaging, Reaction Microscopy) employ TOF spectrometer assemblies and jet target formation parts from RoentDek and use the DLD and HEX detectors as key components, among those:
AUT: TU Wien
CHE: ETH, Zürich
FRA: ISMO + SOLEIL, Paris
GER: MPI-K, Heidelberg
GBR: STFC, Daresbury
IND: Banaras Hindu University, Varanasi
NLD: Vrije Universiteit + FOM
USA: JILA, Boulder CO