Patient Dose Calibrator


Patient Dose Calibrator
RadCal
Patient Dose Calibrator
Patient Dose Calibrator Quick, Easy Calibration of DAP (KAP) & Patient Dose Systems

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Description

What's it all about?
Patient Dose Control

TRACEABLE MEASUREMENTS
The PDC is a reference class instrument for "field calibration" of patient dose measurement and control systems thus ensuring the validity of inter-institution patient dose comparisons.

FLEXIBLE AND CONVENIENT
Use the PDC with a phantom to simulate patient imaging conditions including scattered radiation or mount the PDC on its support stand to measure air Kerma.

SIMPLE TO USE
The PDC displays DAP (KAP) and dose rate during an exposure then automatically switches to display accumulated DAP (KAP) and dose on exposure completion.

DEPENDABLE
A tough ABS plastic housing protects the ion chambers and electronics that incorporate several patented features to ensure long term stability.


 

What's it all about?
Patient Dose Control

TRACEABLE MEASUREMENTS
The PDC is a reference class instrument for "field calibration" of patient dose measurement and control systems thus ensuring the validity of inter-institution patient dose comparisons.

FLEXIBLE AND CONVENIENT
Use the PDC with a phantom to simulate patient imaging conditions including scattered radiation or mount the PDC on its support stand to measure air Kerma.

SIMPLE TO USE
The PDC displays DAP (KAP) and dose rate during an exposure then automatically switches to display accumulated DAP (KAP) and dose on exposure completion.

DEPENDABLE
A tough ABS plastic housing protects the ion chambers and electronics that incorporate several patented features to ensure long term stability.

Key Features and Benefits
KEY FEATURES
BENEFITS
Complete DAP meter assessment: Measures DAP, DAP-rate over a full range of field sizes and beam qualities
Symmetrical Response: Can be used with under-couch tubes without the need for inversion
Patient Dose System assessment:
  1. Dose/DAP Air Kerma Calibration:
  2. Entrance (skin) Dose / DAP Calibration and QA:
  3. Image Receptor Dose/ DAP Calibration and QA:
 Measure Dose and Dose-rate
  • Measure DAP and dose linearity with dose and field size
  • Surface dose calibration with phantom and establish reference DAP and dose levels
  • Verify Image Receptor dose measurements and AEC linearity testing
Optional Remote Control Software: Automatic data capture with customizable templates
Optical & radiographic alignment markers: Setting reference field sizes made simple
Specifications
For expert advice on your exact application please call us at 1-626-357-7921 ext 111 or email sales@radcal.com for the product recommendation that would best suit your needs.
Display Range
Dose Area Product (0.01...99 999 999)µGy·m²
Air kerma (0.001... 99 999 999)mGy

Accuracy
DAP and Air kerma Inclusive of all uncertainties (temperature, DAP and Air kerma pressure, rate and area dependencies and beam quality) ± 10 % Under reference conditions (10mGy/Min, 15X15 cm field, 80 kVp, 2.5 mm Al filtration) ± 7.5%

Digital Resolution
Dose area product 0.01 µGy·m²
Dose area product rate 1 µGy·m²/min
Air kerma 0.001mGy
Air kerma rate 0.1 mGy/min

Rated range of use
Tube voltage (40 ... 150) kV
Dose area product:
(low rate range)
(high rate range)
(1 ... 1·10⁴) µGy·m²/min
(2·10³ ... 9 ·10⁵) µGy·m²/min
Air kerma rate (0.2 ... 9 ·10³) mGy/min (at the position of the chamber)

Automatic Temperature and Pressure Correction
Pressure (80.0 ... 106.0) kPa
Temperature (+10 ... +40)ºC
Air humidity (10 ... 80)% rel. humidity (max. 20g/m³)

Ionization Chamber
Response versus radiation quality
(50kV ... 150 kV, norm. to 100kV; acc. IEC 60580) 		±3%
Quality equivalent filtration(70kV) 0.6 mm AI
Active area
Dose area product
Air kerma
max. (300x300) mm²
min. (100x100) mm²

Power Supply
Internal rechargeable battery pack Li-ION, 2 cells
Operation time(state of charge: 100%) > 8 h

Serial Interface USB
Protection class(acc. IEC 60259) IP 41
Weight 2.32 kg
Dimension 350mm x 410mm x 35mm
(L x W X H)

*Specifications subject to change.
Software

Optional PDC Software

Acts as a remote display panel to the PDC unit.

  • Enables the capture of PDC readings into a spreadsheet that can be saved for later processing using Excel.
  • Enables a comprehensive range of capture options providing maximum flexibility with minimal user intervention.
  • Enables configuration of the operating parameters of the software.
  • Enables the adjustment of some PDC operating parameters, either temporarily or permanently.

Data Capture

Automatic Spreadsheet Data Capture
Setting Options

DAP Calibration Template

DAP Variation with Dose Rate
DAP Variation with kV
DAP Variation with Field Size

Output Consistency Template

Dose Deviation

Graph

Air Kerma
Dose Area Product(DAP)
Automatic Spreadsheet Data Capture image
Applications

DOSE/DAP Air Kerma Calibration Image


 DOSE/DAP AIR KERMA CALIBRATION
  • DAP and dose linearity with dose and field size.
  • Sensitivity testing.
  • DAP and dose calibration at the patient plane or at a reference distance.
ENTRANCE (SKIN) DOSE/DAP Calibration and QA Image


 ENTRANCE (SKIN) DOSE/DAP CALIBRATION AND QA
  • Entrance surface dose calibration for different examinations using a phantom.
  • Establishing examination related reference DAP and dose levels.
Image Receptor DOSE/DAP Calibration and QA Image


 IMAGE RECEPTOR DOSE/DAP CALIBRATION AND QA
  • Image receptor dose measurement.
  • AEC linearity testing.
References


The Energy Dependence Of The Response Of A PDC
Download Abstract

Assessment Of An Instrument For Calibrating Dose Area Product (DAP) Meters by North Wales Medical Physics,England
Download Assessment

IAEA Codes of Practice for PDC, see page 14 & 15 for details.
The citation being: Implementation of the International Code of Practice in Dosimetry in Diagnostic Radiology (TRS 457), © IAEA, Date Published: 2011
Download Publication