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A method to correct for temperature dependence and measure simultaneously dose and temperature using a plastic scintillation detector
| Content Provider | Scilit |
|---|---|
| Author | Therriault-Proulx, Francois Wootton, Landon Beddar, Sam |
| Copyright Year | 2015 |
| Description | Journal: Physics in Medicine & Biology Plastic scintillation detectors (PSDs) work well for radiation dosimetry. However, they show some temperature dependence, and a priori knowledge of the temperature surrounding the PSD is required to correct for this dependence. We present a novel approach to correct PSD response values for temperature changes instantaneously and without the need for prior knowledge of the temperature value. In addition to rendering the detector temperature-independent, this approach allows for actual temperature measurement using solely the PSD apparatus. With a temperature-controlled water tank, the temperature was varied from room temperature to more than 40 °C and the PSD was used to measure the dose delivered from a cobalt-60 photon beam unit to within an average of 0.72% from the expected value. The temperature was measured during each acquisition with the PSD and a thermocouple and values were within 1 °C of each other. The depth-dose curve of a 6 MV photon beam was also measured under warm non-stable conditions and this curve agreed to within an average of -0.98% from the curve obtained at room temperature. The feasibility of rendering PSDs temperature-independent was demonstrated with our approach, which also enabled simultaneous measurement of both dose and temperature. This novel approach improves both the robustness and versatility of PSDs. |
| Related Links | http://europepmc.org/articles/pmc4613770?pdf=render https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4613770/pdf |
| Ending Page | 7939 |
| Page Count | 13 |
| Starting Page | 7927 |
| ISSN | 00319155 |
| e-ISSN | 13616560 |
| DOI | 10.1088/0031-9155/60/20/7927 |
| Journal | Physics in Medicine & Biology |
| Issue Number | 20 |
| Volume Number | 60 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2015-09-25 |
| Access Restriction | Open |
| Subject Keyword | Journal: Physics in Medicine & Biology Detector Plastic Scintillation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Radiology, Nuclear Medicine and Imaging Radiological and Ultrasound Technology |
