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Wireless CR Radchex Meter

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Balancing system performance and dose is an important Quality Assurance requirement best satisfied with the Wireless CR Radchex Meter. The Wireless CR Radchex Meter is a factory, radiation-calibrated and NIST traceable light meter that can be used to calibrate (balance) CR plate readers (also radiation-calibrated light meters) in the field. 
  • Provides a reliable and reproducible method of accurately maintaining a CR manufacturers’ specific factory calibration
  • Calibrates computed radiography (CR) plate readers and automatic exposure control (AEC)
  • Assesses ongoing performance of CR plate reader, AEC, and automatic programmed radiography (APR)
  • Configured to mimic any of the available CR OEM plate readers using interactive software
  • Sets and maintains desired clinical system speed (dose) of the CR system
  • Calibrate computed radiography (CR) plate readers in the field to be traceable to a factory radiation-produced light condition
  • Links radiation exposure to the front of the plate accurately and predictably to a CR light measurement value (CRLU)
  • Provides three different tube-head filtration choices for users who desire a non-filtered beam condition for field plate reader calibration
  • Ideal tool for service engineers, physicists, and quality assurance personnel
Wireless CR Radchex Meter
Benefits
Using the Wireless CR Radchex Meter to calibrate x-ray system AEC and CR plate readers instead of a dosimeter can greatly improve productivity. A full system AEC and CR plate reader calibration process can take up to six hours to complete; whereas with the Wireless CR Radchex Meter, the process can be completed in under two hours. The Wireless CR Radchex Meter is designed to work with all major brands of CR equipment.

The Wireless CR Radchex Meter has the same x-ray energy response as a CR system (x-ray to light conversion efficiency is the same for various beam conditions), so it can be used as an accurate and precise replacement for the plate readers light measurement value (exposure index value). This meter can save valuable time when calibrating or accessing CR readers and AEC, and can be used with multiple x-ray systems. The size of the electronic cassette is the same as a standard CR cassette and can be placed in the Bucky tray for ‘In-Bucky’ or ‘table-top’ measurements.


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Applications
The Wireless CR Radchex Meter is ideal for use by service engineers to initially calibrate the CR plate reader, AEC, and density selector settings. Radiology managers can use the Wireless CR Radchex Meter to assist in the establishment of technique charts and training to determine ALARA techniques for various exam types. Physicists use the Wireless CR Radchex Meter to assess the performance of CR-AEC for compliance to clinical system speed objectives and patient dose. QA personnel can use the Wireless CR Radchex Meter to periodically document the performance of the CR system and to compare CR to film/screen systems regarding desired ALARA objectives. 

The Wireless CR Radchex Meter uses Bluetooth to communicate with a laptop or desktop computer so that the CRLU (CR Light Units), EI (Exposure Index) and estimated mR values measured by the electronic cassette are automatically recorded and displayed on the laptop screen.



Specifications
X-ray energy dependence:

Digital range:

Minimum CRLU Rate:

Maximum CRLU Rate:

Power On/Off:

Controls:

Functions:



Power requirements:

Typical battery life between charging:

Operating environment:

X-ray beam filter:
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Electronic Cassette: 
Dimensions:
Weight:
Simulates relative light output of Photostimulatable Phosphor Plate (PSP) within +/- 3% over kVp range of 60 to 120 kVp and a patient equivalent thickness range of 5 to 35 cm (within specified operating rates). 

Computed Radiography Light Units; CRLU (AEC#); 0 to 500.00 

1.50/sec (approx 0.15mR/sec(1.315 µGy/sec) entrance exposure rate) 

2500/sec (approx 250mR/sec(2193 µGy/sec) entrance exposure rate) 

 Manual switch

Wireless communications with computer software; Bluetooth wireless communications. 

Measures CRLU (AEC#); Converts CRLU to CR manufacturers specific CR plate reader light exposure index value (EI); user selectable. Calculates cassette input exposure values for various X-ray beam conditions (exposure in mR(or uGy) plus backscatter) 

Built-in NiMH rechargeable battery pack (9.6 V)

Greater than 15 hrs. 


59 degrees to 95 degrees F (15 to 35 degrees C)

1.5 mm copper (B152-110); 6 inches by 6 inches complete with velcro straps to attach to X-ray tube collimator housing
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10 x 12 x 0.5 inches (24 x 30 x 1.3 cm) 
 3.9 lb (1.8 kg) 

Downloads

INSTRUCTION MANUAL
PDF, 25 PAGES, 1.1 MB - REV 2008

SOFTWARE: Download Here
ZIP FOLDER, 20.5 MB

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