Abstract
An optical fibre radiation dosemeter has been developed that utilises optically stimulated luminescence and scintillation to provide independent, remote, real-time dose measurements. The radiation sensitive element consists of a 1 mm long, 0.4 min diameter piece of copper-ion-doped fused quartz that is attached to a 1 m length of commercial optical fibre. The dosemeter probe is 0.6 mm in diameter and is flexible enough to be used in standard medical catheters for internal radiation dose-measurements. A four-channel dosemeter system has been built and characterised under conditions typical of a radiotherapy environment. The device exhibits a linear response over the range of doses from 0.01 Gy to 10 Gy. The dosemeter responds identically to both electrons and photons in the range from 4 to 20 MV and the calibration was retained to within ±2% over a period of 4 weeks. The fibre dosemeter has been used successfully to verify doses received by three patients receiving radiotherapy treatments.
| Original language | English |
|---|---|
| Pages (from-to) | 23-26 |
| Number of pages | 4 |
| Journal | Radiation Protection Dosimetry |
| Volume | 101 |
| Issue number | 1-4 |
| DOIs | |
| State | Published - 1 Jan 2002 |
ASJC Scopus subject areas
- Radiological and Ultrasound Technology
- Radiation
- Radiology Nuclear Medicine and imaging
- Public Health, Environmental and Occupational Health