Lablogic Systems is offering the Gamma-RAM radio-HPLC detector, designed for soft and intermediate gamma emitters with energies up to around 1 MeV.
The Gamma-RAM's heavy lead shield and its well-type titanium-activated sodium iodide crystal, which has greater stopping power for gammas, make it highly reliable.
The high counting efficiencies achieved, even for more energetic isotopes, gives the superior resolution essential for PET radiopharmaceutical QC.
The Gamma-RAM has a hermetically sealed crystal/photomultiplier assembly, and both variable- and fixed-volume counting cells are offered for use with HPLC eluates.
The variable-volume cell for low-energy emitters consists of a Teflon tubing coil wound around a mandrel.
The coil is surrounded by a cylindrical tungsten sleeve that can be moved in or out with a micrometer, exposing more or less of the coil to the surrounding sodium iodide.
Effective volumes from about 15 to 200 microlitres are possible.
