Captus ® 3000 Thyroid Uptake Table Top System


Performing Thyroid Uptake measurements has never been easier. The Captus® 3000 combines HIPAA compliant, comprehensive software with the latest PC technology to create a Thyroid Uptake system that is fast, reliable, and extremely easy to use.

The Captus® software has been designed to get you up and running in virtually no time at all. The program contains a "Quick-Start" feature that walks the user through all of the initial setup functions. The "Quick-Start" feature also serves as an excellent teaching tool. The Captus® 3000 software is a comprehensive program with Thyroid Uptake, Wipe Testing, Bioassay, Lab tests including Schillings, Blood Volume and RBC Survival functionality built in. The Wipe Test module allows the flexibility of using predefined or user defined wipe locations, groupings and trigger levels for site-specific wipe samples. The entire program has "Fly Over" control bars to allow quick access to any feature in the software.

QA is automated and includes the ability to measure Minimum Detectable Activity. With the use of two reference standards (Cs-137 and Eu-152), included with the system, the quality assurance program will move from Calibration to Constancy to Chi-square with limited time and effort.

The versatile 1024 Multichannel Analyzer (MCA) module allows measurements of energies up to 2 MeV. The MCA module also has an isotope selection library with 76 preloaded isotopes and the ability to add 10 additional isotopes and adjustable ROI's for easily reproducible counting parameters.

As always, the entire system comes with Capintec's unsurpassed Quality Construction and Customer Service. From Installation and Training to Applications Support just call 800-227-6832 speak to a Technical Support Specialist.



The Captus® 3000 is a highly versatile system that can be configured to meet any Nuclear Medicine department's needs. The standard configuration comes with the mobile stand, the thyroid uptake probe and the drilled crystal well. Optional systems can be equipped with a thyroid probe only, drilled well only, a full tabletop arrangement with well and probe, a modified tabletop with probe or well , or a tabletop system with a wall mounted thyroid probe.

If one of these variations of the Captus® 3000 doesn't meet your needs let us know and we will work with you in creating the most user-friendly and cost effective system for your department.



  • Thyroid Uptake
  • Bioassay
  • Lab Tests
  • 1024 Multichannel Analyzer
  • Flexible pre-defined or user-defined trigger levels for Wipe Tests
  • Improved data storage, archive and reporting functions
  • "Quick Start" menu
  • Automated QC functions, including energy calibration, constancy, Chi-square and MDA
  • 360 degree Articulating Spring Arm
  • Standard 2 year warranty


  • Tower computer system
  • MCA interface PC board: 1024 channels.
  • Maximum count rate of 100,000 cps.
  • ROI's are automatic or manual.
  • Differential Linearity:
  • Integral Linearity:
  • Preset live time, real time or total counts.
  • Automatic peak-finding.
  • Two 2" NaI (Tl) detectors:
  • Flat field collimator to meet ANSI N44.3-1973.
  • Drilled well with 1" lead shielding (optional 2' shielding available) and brass liner.
  • Calibration sources: Cs-137 and Eu-152 (calibrated exempt sources provided at no charge).
  • Power requirements: (With circuit protection, line filter and isolation transformer)
    • Standard: 115V 90-127V 50-60HZ
    • Optional: 220V 180-250V 50-60HZ
  • Includes .5 µCi cs137 and .5 µCi Eu-152


Auto Calibration
The Autocalibrate module provides high voltage, zero offset and automatic gain adjustment; as well as a linearity correction and constancy test. Also included in QA are automatic chi-square and MDA calculation selections. Finally, the program has the ability to automatically perform efficiency calculation and storage for various isotopes.

Thyroid Uptake Report
Multiple TU protocols can be created for I-123, I-131 or Tc-99m. The protocols can use a standard capsule method or allow the system to perform an automatic decay correction to the administered dose. The system will store detailed patient demographics, physician data and administered dose data. There is no limit to the number of uptakes that can be performed and the results will be reported with detailed count information and automatic percentage uptake calculations. Also, there are user defined normal values that will be compared to the uptake results and "flagged" when the results are out of range.

Wipe History
The highly versatile wipe test module will allow users to establish as many locations as needed and to arrange the locations into either pre-defined or user-defined groupings. The program will perform an automatic peak and isotope identification of wipe results in order to advise the user of any contamination encountered. The software includes pre-defined trigger levels that can be modified by the user.   Any wipe sample that exceeds a defined trigger level will be highlighted flagged. Finally, the system will maintain a history of wipe results that can be easily searched and printed in whole or in part.

MCA Spectrum Report
The Multi-Channel Analyzer is very user friendly.  ROI's can be selected from a convenient menu of isotopes with predefined regions or the user can define them. Protocols can be defined for real time, live time or acquired counts. Results are reported with full spectrum counts and counts by region of interest. All results can be saved in the database or exported to a spreadsheet.

Lab Test Report
In vitro lab test protocols are incorporated into the software; the user has access to Schilling, RBC Survival and both Cr51 and I125 blood volume studies. The program will integrate all patient demographic, physician and dose data and will perform automatic result calculations. By utilizing the report functionality all of the test data can be documented in a hardcopy format for physician review or for documentation in the patients file.

Staff Bioassay Report
The bioassay allows for the quick and efficient assessment of potential thyroid burden for I-123, I-125 or I-131. Measurement results can be reported in CPM's or uCi's. In order to meet regulatory requirements a cumulative history can be maintained on the computer and/or printed out for a hardcopy record.



Item Numbers

5430-0087 Captus® 3000 Table Top System

Optional Accessories

0960-0177 ALERT Software Upgrade
0960-0152 Custom Protocol
5450-0003 Cap-DICOM Software
5230-0038 Neck Phantom
7315-1850 Rod Source Holder
5450-0003 Dicom Interface