Capintec CAPRAC-t Wipe Test Well Counter
The CAPRAC-t is a compact NaI(Tl) drilled-well counter designed for wipe testing, contamination monitoring, and laboratory sample counting in nuclear medicine and radiopharmacy facilities. It performs a wipe test in six seconds at 1 nCi and detects extremely low activity levels with high accuracy. Supplied by Meditronix Corporation in India, manufactured by Capintec.
Key Features:
- Completes a wipe test in six seconds for rapid contamination surveys
- NaI drilled-well detector delivers high sensitivity for low-level activity detection
- 256-channel MCA with built-in gamma spectroscopy for radionuclide identification
- Automatic energy calibration, constancy check, and background subtraction
- Automated well QC with chi-square and MDA testing
- Manual and automatic region of interest (ROI) selection
- User-definable wipe test protocols and trigger levels
- Single-well gamma counter mode for departments without sample changers
- Built-in database for test results, wipe records, and QC history
- Printed records available with optional printer
Display and Connectivity:
- 8-inch SVGA color touch screen
- Readouts in cpm, dpm, nCi, Bq, and curie or becquerel selectable
- Spectrum and photon-energy histogram display
- USB and RS-232 ports for PC and printer
- Compatible with nuclear medicine information management systems via USB
- Meets state and NRC wipe test requirements
Specifications:
| Parameter | Details |
|---|---|
| Detector | 1.5 in NaI(Tl) drilled-well crystal (3.8 x 4.4 cm) |
| Well Dimensions | 1.7 cm diameter x 3.8 cm depth |
| Channels | 256 (MCA) |
| Maximum Counting Rate | 100,000 cps |
| Shielding | 1.3 cm (0.5 in) lead outer shield |
| Console Dimensions | 23 cm W x 27 cm D |
| Console Weight | 3.4 kg |
| Chamber Dimensions | 23.8 cm H x 15.2 cm diameter |
| Chamber Weight | 6.9 kg |
| Power Supply | 100 to 240 V AC, 50/60 Hz |
| Cable Lengths | Power 1.8 m, Detector 2.7 m, Printer 1.8 m |
| Standard Sources | Cs-137, Eu-152 |
| Interfaces | RS-232, USB |
Applications:
- Wipe test surveys for radioactive contamination
- Low-level activity counting in radiopharmacies
- Single-sample gamma counting in nuclear medicine labs
- Radionuclide identification via gamma spectroscopy
- Regulatory wipe test documentation
Regulatory Compliance:
- Meets state and NRC wipe test requirements
- Automated QC supports regulatory documentation
Manufactured by Capintec. Supplied and serviced by Meditronix Corporation in India.

