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Ultra high resolution 90o geometry dual-head gamma camera

for dedicated cardiac, brain and small organs SPECT imaging with improved throughput

• typical intrinsic spatial resolution FWHM <= 2.5 mm
• also suitable for most non-cardiac examinations
• radius adjustment at 90o detector position for more accurate patient positioning
• maintenance-free mechanical gantry
• robust mechanical gantry design with improved safety factor
• universal, easily moveable patient pallet made of low attenuation (<5%), 2.5 mm thin aluminum
• FOV: 360x210mm
• Energy range: 40-300 keV (option: 400 keV)
• Intrinsic energy resolution for 99mTc: 9.7%
• Intrinsic Spatial Resolution: CFOV 2.8mm (FWHM)

• NaI(Tl) scintillation crystal
  • Size: 430x244 mm
  • Thickness: 6.4 mm or 9.5 mm (optional)
• Photomultipliers:
  • 37 pcs of high quantum efficiency PMT characterized by improved energy resolution, magnetic shielding and long-term stability
• Lead shielding thickness: 12 mm - 25 mm

Detector electronics

Compact, highly integrated, one-board easily serviceable construction without tuning potentiometers:

• computer controlled PMT autotuning processor for fast PMT gain stabilization and adjustment
• computer controlled ODC electronics
• high precision summation electronics
• active high voltage bleeder with integrated HV module

• intelligent CAN connected industry standard interface to gantry
• motorized vertical movements (250mm)
• motorized whole body gantry motion
• low attenuation (<5%) 2.5mm thin aluminium pallet
• max. 180 kg patient weight
• accessories: arm-head-holder for heart and head-holder for brain examinations; integrated source holder

Gantry

• 90 degree fix head position with high precision positioning
• Intel processor based intelligent gantry electronics with industry standard CAN connections
• pre-programmed robotic gantry motions for positioning
• full automatic motion calibrations
• maintenance-free mechanical design

Optional accessories

• ECG triggering device for cardiac gated studies
• MODEM long-distance service kit (hardware and software)
• Colour video imager or colour laser printer
• CODONICS dry film imager
• Tuning and test phantoms

Measured per NU-1, 1994 using Tc-99m where applicable.

• LEGP collimator set
• LEHR collimator set
• LEUHR collimator set
• MEGP collimator set

Full-digital electronics assembled from the latest "high-tech" elements including fast PCI bus acquisition interface.

• Intel Pentium 4, 3 GHz computer with 64 bit memory handling
  • 512 Mbytes memory
  • 512 kbytes L2 cache memory
  • 160 Gbytes hard disk drive
  • CD-RW drive
  • 1.44 Mbytes floppy drive
  • 17" high resolution TFT colour monitor
  • shipped with Windows XP Prof. operating system
• 40 MHz X,Y,Z A/D conversion
• 4 independent energy channels
• multi-channel analyser up to 1024 channels (40 - 600 keV)
• 4096 x 4096 pixel image digitizing
• digital corrections:
  • direct addressing TS® simulation linearity correction with FOV increasing technology
  • energy correction
  • uniformity correction without count rate loss
  • three-phase pile-up recovery and resolution enhancing technology for high count rates

Layout Only - Not For Construction. Click on the image to enlarge it.