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Doped Plastic Scintillator Properties for Soft Tissue Dosimetry.
- Source :
-
IEEE Transactions on Nuclear Science . Sep2022, Vol. 69 Issue 9, p2108-2112. 5p. - Publication Year :
- 2022
-
Abstract
- In medical dosimetry, the radiation quantity of interest is frequently the dose to tissue. To make direct dosimeters that show the dose absorbed in soft tissue, tissue-equivalent material is preferred. Plastic scintillators (PLSs) are made of materials with a density similar to soft tissue and relatively have energy independent response. Non-proportionality must be taken into account when reproducing the light output spectrum for photons below 200 keV, as it reduces light output significantly. In comparison to a standard PLS, both low and high-energy photons’ pulse height distribution spectra as a result of lead doping were measured and calculated. The effect of a 0.5% lead doping scintillator is sufficient to make up for the loss or difference between soft tissues and PLSs in response to low-energy photons, particularly below 200 keV. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 69
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 159210860
- Full Text :
- https://doi.org/10.1109/TNS.2022.3196353