Centaurus

By Deben UK Ltd

Centaurus is a scintillation type Cathodoluminescence (CL) panchromatic detector and/or Backscattered Electron (BSE) detector, which can generate either high-resolution CL images or be easily converted to a BSE imaging detector for compositional imaging (with topographic information). With a user-exchangeable tip, the Centaurus can be converted between CL and BSE imaging, providing an additional function for little extra cost. Centaurus gives excellent images at low kV – ideal for those studying fragile and beam-sensitive samples. Changing from CL to BSE is easily achieved by swapping the mirrored tip to a phosphor coated tip. A suitable free chamber port and AUX video input are required on the SEM. Cathodoluminescence (CL): Available for most conventional tungsten and FEG SEMs. Excellent low kV performance. High performance parabolic collection mirror. High spatial resolution. Operates in HV and LV mode. Compositional monochromatic video output. Dynamic range: 185-850nm (standard), optional wider range (400-1200nm). Backscatter (BSE): Phosphor or YAG scintillator options. Good atomic number resolution. Dynamic range: 300-650nm. High performance parabolic scintillator (or YAG crystal). System options: Motorised insertion with Bellows sealing: The Motorised Centaurus Detector has all the functions of the manual model but with motorised insertion and welded bellows sealing. Its main application is for mounting in an inconvenient place, often behind the electron optical column. Its use is invaluable systems used in hazardous environments such as ”hot cells”. Additional BSE or CL tips: Purchase a CL system with additional BSE tip. Exchangeable PMTs: PMT tubes are user exchangeable to optimise collection wavelength. The Centaurus is an advanced control and data acquisition system for in-situ testing, enabling precise synchronisation of mechanical stages with imaging systems for accurate, real-time experiment control and analysis. Cathodoluminescence (CL) imaging – used widely in geology, mineralogy, ceramic materials research and luminescent material development. Photon emissions can provide general information on trace elements. CL combines functional optical information with added spatial resolution. Backscattered Electron (BSE) imaging – provides image contrast as a function of elemental composition, as well as an element surface topography. Using a diamond polished parabolic reflector tip, the Deben detector collects far more signal than other products on the market. The photomultiplier may also be exchanged to select a particular wavelength range with sensitivity available from UV to deep IR at 185nm to 1200nm.