HandECount Alpha/Beta Sample Counter

  HandECount Alpha/Beta Sample Counter



The HandECount is a battery or AC powered sample counter used for determining the alpha and beta radiation present in a sample.  The instrument uses a PalmTM PDA with a color touch screen as the user interface and to record all results.  All data may be retireved to a PC via a conduit program.

   Product Detail


Features:
  • Alpha/Beta Sensitive        
  • Selectable Units of Measurement        
  • Stores Measurement Results        
  • Color Display        
  • Built-in Calibration Routine        
  • True Portability        
  • Optional 8 Hour Battery Operation        
  • Alarms        
  • Decay-Corrected Source Library        
  • Internal Clock

 Introduction

The HandECount sample counting system provides simultaneous alpha and beta measurements.  This system is controlled by a Palm handheld computer platform and operating system which communicates with our standard modular detector board to perform all counting operations.  The Palm's built-in informative color screen, intuitive controls, internal clock and powerful database capabilities provide numerous cost-effective advantages over custom built systems.

The HandECount system incorporate a 2" dual phosphor scintillator coupled to a sliding drawer mechanism accommodating a 2" diameter (47mm) sample.  The drawer uses a height adjustable sampling area to permit use with different sample types.  To activate the counting process, the sample drawer myst be slid all the way back where is makes contact with a switch.  The enclosure is made from a durable plastic which will withstand rugged handling.  The built-in handle in combination with the battery operation option, facilitate true portability for feld usage up to eight hours between battery charges.

Unlike many of its predecessors in this price class, the HandECount allows users to configure the instrument to best suit their particular application criteria.  Multiple configurations may be saved and employed by the end user via selection of the sample type to be measured.  All measurements automatically subtract the stored background value before calculating the final result based upon the unit of measurement pre-selected for that particular sample type.

All measurement results are automatically stored to a database shich can be viewed directly on the Palm or sent to a PC running a WindowsTM application via the built-in RS-232C interface.

In addition to the measurement results database, the HandECount also supports a database comprising all the background and check source updates to support quality control.  A separate database references all radiation sources employed for checking and calibrating the instrument.  All sources are automatically decay-corrected to simplify and maintain accuracy in these functions.

A built-in calibration routine permits calibration of the instrument and displays the results.  Two levels of password control prevent access to any editing and calibration functions.  All calibration results are stored to a calibration reporting databse for review on the Palm or for later retrieval by a PC.

 
Purchase Details
SKU : HandECount 
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Specifications:
Detector :2" Diameter alpha and beta sensitive scintillator
Efficiency :Alpha Pu239: > 90% (2 pi); Beta Tc99: > 25% (2 pi); Sr90-Y90 > 35% (2 pi)
Background :<60 counts per minute (cpm) in the beta channel and < 3 cpm in the alpha channel in a background of 25 µR/h gamma
Cross-talk :Alpha to beta and beta to alpha cross-over corrections are automatically corrected with parameters established in the calibration process
Sample Drawer :2.03 “ diameter x 0.38 “ thick (51.6 x 9.6 mm) maximum. The sample thickness can be adjusted between 1/8 to 5/16 “ (3.2 to 7.9 mm). The sample holder and slide are black anodized for ease of decontamination.
Mechanical :Single package design to allow for portability
Display/Controls :Palm™ handheld computer, Model m515
Units :Counts, CPM, CPS, Bq, DPM, DPS
Count Time :User selectable count time between 1 second and several hours
Background Update :User selectable count time 1 second to 60 minutes utilized in background subtraction of sample counts
Alarms :User-defined alarm limits on samples; Out of calibration
Calibration :Menu driven calibration routine to optimize HV, alpha/beta thresholds and cross-talk values. Efficiencies are automatically computed based upon user-defined sources. Program includes a user-defined database of sources for quick selection. Automatic decay corrections of sources are calculated. All calibration data are protected in nonvolatile memory. The next calibration date is automatically computed based upon the user-defined frequency. The HandECount2 program provides advance warning of upcoming calibration dates.
Power Supply :110 VAC, 60 Hz standard, optional 220 VAC, 50 Hz
Check Source :Software routine permitting quick verification and operability of the instrument to user-defined acceptance criteria
Passwords :Protect setup and calibration information via two levels of password controls
Count Storage :Data log samples using sequential numbering or user input identification via the Palm™. Graffiti™ interface for approximately 5000 samples. Each data point will include sample ID, sample count type, sample count result, counter serial number, time, date, instrument status etc.
Temperature :32° - 122° F (0° to 50° C)
Humidity :10 to 90% non-condensing
Count Range :1 to 1.2 million cpm
Audible :The Palm™ audible output is used to signal: - Countdown timer. - When the sample has completed its count. - Whenever an alarm occurs (when activated).
Size :15" High x 4.75" Wide x 12" Deep (38.1 x 12.1 x 30.5 cm)
Weight :11 lbs (5 Kg). (13 lbs with battery option) (~6 Kg)
Testing :CE Approved. ANSI N42.17