MOBILE MOSFET DOSIMETER

Wireless Dose Verification System

The mobileMOSFET dose verification system takes MOSFET dosimetry to the next level.

The mobileMOSFET is a portable, easy-to-use, seamlessly integrated system that simplifies dosimetry and minimizes QA time, making it ideal for a busy radiotherapy center.  For example, one Reader Module can be easily shared between multiple treatment rooms (with LAN connections and additional transceivers).

This new wireless system is entirely software driven, allowing for remote control of one or more systems from a PC.  The system consists of Remote Monitoring Dose Verification Software, wall-mounted Bluetooth™ Wireless Transceiver and a small Reader Module that acts as a channel between the MOSFET and software, providing a final dose report for patient records.  Up to five MOSFETs or one Linear 5ive Array can be plugged into one module.  This provides easy mobility within the treatment room.  The PC is online with the Reader Module and the dose is obtained in real time.

 

MOSFET Dosimeters

Best Medical offers three different styles of MOSFET dosimeters as shown in the table below.  With each of these dosimeters there are also options that can be selected.  All of our dosimeters have the same unique features:

  • One calibration factor for all photon & electron modalities in the radiotherapy energy range
  • Isotropic (± 3% or better for 360º)
  • Active region of 0.2 x 0.2 mm
  • Permits pinpoint measurement without patient shielding
  • Dose-rate and temperature independent
  • Unobtrusive in procedures
  • Lightweight and flexible
  • Multiple dosimeter capability with one Reader

 

Dosimeter Width of Flex Length of Flex Thickness of Flex Common Use
Standard MOSFET 2.5 mm 200 mm 0.3 mm Dose verification during radiotherapy treatments; beam QA
   microMOSFET 1.0 mm 375 mm 0.3 mm Fits down a 6Fr catheter for dose verification during HDR brachytherapy procedures
Linear 5ive Array 1.5 mm 460 mm 1.3 mm Measurement of urethral dose during prostate brachytherapy procedures
         
Options   Use   
High Sensitivity  These dosimeters are made more sensitive to radiation.  Standard dosimeters in standard bias (all readers have two bias settings: std and high) have a nominal sensitivity of 1 mV/cGy.  High sensitivity dosimeters in standard bias have 3 mV/cGy, while high sensitivity dosimeters used in high bias will yield a nominal sensitivity of 9 mV/cGy.
Reinforcement Dosimeters can be reinforced to increase strength and durability.
Radiopaque Marker A marker can be placed on the end of the dosimeters to make them visible during imaging (e.g. CT)

 

Downloads MobileMOSFET Datasheet: Download PDF (3.24 MB)