Below are featured instruments used to conduct experiments on the rare isotope beams created at FRIB.

Lab-supported instruments

Gamma-Ray Energy Tracking Array (GRETA)

GRETA is designed to reveal new details about the structure and inner workings of atomic nuclei, and to elevate our understanding of matter and the stellar creation of elements.

S800 Spectrograph (S800)

The S800 is equipped with sensitive detectors that measure the positions and angles of particles deflected by magnetic fields. It is specially designed for reaction studies with radioactive beams.

Non-lab-supported instruments

BEam COoler and LAser spectroscopy endstation (BECOLA)

BECOLA is a facility for laser-assisted nuclear structure studies with low energy radioactive ion beams at FRIB.

FRIB Decay Station (FDS)

The FRIB Decay Station will be a flexible and modular multi-detector system with the ability to measure all possible nuclear decay paths of rare isotopes produced at FRIB.

FRIB Decay Station Initiator

The FRIB Decay Station Initiator (FDSi) is the initial stage of the FRIB Decay Station (FDS). The FDSi allows users to conduct decay spectroscopy experiments and to transition to the FDS without interruption to the user program. 


High Rigidity Spectrometer

Experiments with HRS will greatly increase the sensitivity of the scientific program at FRIB, in particular for experiments with the most neutron-rich isotopes that have the highest potential for discovery.

Low Energy Beam and Ion Trap (LEBIT)

LEBIT slows down fast rare isotope beams to low velocities to perform high-precision mass measurements on rare isotopes for fields of physics including nuclear structure, nuclear astrophysics, and fundamental interactions.


SEparator for CApture Reactions (SECAR)

SECAR is a recoil separator system optimized for the measurement of capture reactions on proton-rich unstable nuclei that are critical in studies of stellar explosions.

SOLenoid spectrometer Apparatus for ReactIon Studies (SOLARIS)

SOLARIS is a dual-mode, charged-particle spectrometer system. These two modes complement each other and allow to access a wide range of radioactive beams.