Caprac Wipe Test Counter

The compact CAPRAC-t®. It performs a wipe test in just 6 seconds (for 1 nCi) and detects extremely low levels of activity with the accuracy only a NaI drilled-well detector can provide.

The CAPRAC-t® can also serve as a single-well gamma counter in departments that do not need multi-sample changers. User-defined protocols, trigger levels, and counting times are a “snap”. A 256-channel pulse-height analyzer permits built-in gamma spectroscopy. Definable conversion factors for specific radionuclides allow the CAPRAC-t® to calculate results in cpm, dpm, nCi, cps, dps, or kBq. The CAPRAC-t also displays photon-energy histograms.

The CAPRAC-t® is engineered and built for years of consistent, reliable performance and is Curie or Becquerel selectable. The unit has automatic background subtraction and self-diagnosis programs for systems testing with optimized signal-to-noise ratio. It includes a lead outer shield (1.3 cm thick) with optional auxiliary shield available.

  • 8” SVGA touch screen color display
  • 256 channel MCA with detailed spectrum for identification analysis
  • NaI drilled-well crystal detector
  • Automatic Energy Calibration, Constancy Check, and Background Subtraction
  • Automated well QC including chi-square and MDA
  • Manual and Automatic ROI
  • Sets user definable protocols for wipes
  • Print outs of all data for permanent records with the optional printer
  • Direct readouts with spectrum display are in cpm, dpm, Curies and Bequerels
  • Meets all state and NRC wipe test requirements
  • USB and RS232 communication ports for PC and printer
  • Compatible with nuclear medicine information management systems via USB
  • Lab tests include Schilling, Plasma and RBC volume
  • Built-in database for test and wipe results as well as QC

  • Performance:Type: 1.5” Sodium Iodine (NaI) drilled-well crystal; 256 Channel MCA manual and automatic ROI; Trigger Levels: User definable; Automated Calibration and Background Subtraction; QC Tests: Reproducibility, Chi-Square, MDA; Counting Rate: 10,000 cps
  • Display Screen:Type: 8” VGA-LCD color touch screen; Bq/Ci Reading: User selectable; Activity Display: Selected radionuclide, efficiency, measured activity, and display units; Count Rate Values for both wipe and lab results
  • Printer:RS-232 or USB Ports for compatible non-host based printers
  • PC Port:Interface: RS-232 and USB
  • Power Requirement:100-240 VAC (50/60 Hz) 25W
  • Test:Diagnostic: Full test of program and system memories
  • Cable:Printer (Optional): 6′ (1.8m); Power: 6′ (1.8m)


  • Dimensions:5″ h x 9.0″ w x 10.5″ l (42 x 23 x 22 cm)
  • Weight: 5 lbs. (.4kg)


  • Well Counter Dimensions:28″ h x 6″ d (23.8 x 15.2 cm)
  • Weight: 2 lbs. (6.9 kg)
  • Crystal Dimensions:5″ x 1.75″ (3.8 x 4.4 cm)
  • Shielding:.5″ (1.3 cm) lead
  • Well Diameter: .67″ (1.7 cm)
  • Well Depth: 5″ (3.8 cm)
  • Cable Length: 9′ (2.7 m)

5430-3136 CAPRAC-t Wipe Test/Well Counter

5130-2224 CRC™ Interactive Remote Display
5430-0058 Epson Roll Printer
5430-0100 Epson Ticket Printer
77120-1199 CRP-200 Dose Tickets & Labels
7300-2450 Environmental Shield
5420-2072 Well Detector Auxilary Shield
7300-2004 Liner
7300-2005 Dipper