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 mm 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 verity doses received by three patients receiving radiotherapy treatments.
journal_name
Radiat Prot Dosimetryjournal_title
Radiation protection dosimetryauthors
Huston AL,Justus BL,Falkenstein PL,Miller RW,Ning H,Altemus Rdoi
10.1093/oxfordjournals.rpd.a005974keywords:
subject
Has Abstractpub_date
2002-01-01 00:00:00pages
23-6issue
1-4eissn
0144-8420issn
1742-3406journal_volume
101pub_type
杂志文章abstract::With the availability of the National Institute of Standards and Technology (NIST) Radon Emanation Standard with a content of approximately 5000 Bq of 226Ra, it is possible to build a flow through a practical radon test chamber. A standard glove box with four gloves and a transfer port is used. Air is pumped through a...
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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journal_title:Radiation protection dosimetry
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