Cherenkov Counting

L’Annunziata, Michael F.

doi:10.1016/b978-0-12-384873-4.00015-3

Cited by 3 publications

(1 citation statement)

References 417 publications

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“…Cherenkov radiation, first observed by Marie Curie, has historically been observed in nuclear detectors due to its distinctive blue glow emitted when charged particles travel through a medium at speeds greater than the speed of light in that medium [1]. However, its application in clinical radiation therapy for dose measurements has been limited due to the anisotropic nature of the Cherenkov signal, which was often treated as a spurious stem signal that needed to be removed [2,3].…”

Section: Introductionmentioning

confidence: 99%

Applications of Polarization Imaging for Conventional and FLASH Radiotherapy Dosimetry

Cloutier,

Lalonde,

Zerouali

et al. 2024

J. Phys.: Conf. Ser.

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The application of Cherenkov radiation in radiation therapy dosimetry has been limited by the anisotropic nature of the signal. Recently, polarization imaging was investigated as a method to correct Cherenkov anisotropy and allow precise dose measurements directly in a water tank. The aim of this study is to present polarization imaging as method for the measurement of ultra-high dose rate (UHDR) intra-operative electron beams. In this new approach, the polarized Cherenkov signal was isolated and utilized as a surrogate to evaluate the quality and consistency of both UHDR and conventional electron beams. Percent depth Cherenkov signal were measured for different energies, field sizes and dose rates. The results demonstrate high linearity (R 2 > 0.99) of the Cherenkov signal with the number of pulses and pulse width. The wide dynamic range of the device enabled measurement for both conventional and UHDR radiation beams making it a promising candidate for real-time quality assurance devices.

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Section: Introductionmentioning

confidence: 99%

Applications of Polarization Imaging for Conventional and FLASH Radiotherapy Dosimetry

Cloutier,

Lalonde,

Zerouali

et al. 2024

J. Phys.: Conf. Ser.

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The effect of counting conditions on pure beta emitter determination by Cherenkov counting

Coha

Neufuss

Grahek

et al. 2016

J Radioanal Nucl Chem

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The Cherenkov counting efficiencies measured by three commercially available liquid scintillation counters, Triathler, Tri-Carb 3180, Hidex 300 SL were compared. The influences of energy of pure beta emitters, volume, and solvent as well as instrument type on Cherenkov counting efficiency were studied. The best Cherenkov counting efficiencies are on the Hidex 300 SL and when methanol is used as a solvent. It could be concluded that the sensitivities of low-level versions of Tri-Carb and Hidex 300 SL are comparable. Based on the overall results obtained it has been concluded that the TDCR Cherenkov counting is well suited for routine quantitative determination of low activities of high energetic beta emitters.

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Reallocation of nitrogen and phosphorus from roots drives regrowth of grasses and sedges after defoliation under deficit irrigation and nitrogen enrichment

et al. 2021

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Nitrogen (N) and phosphorus (P) are co-limiting nutrients of net primary productivity in most terrestrial ecosystems (Fay et al., 2015;Harpole et al., 2011). To satisfy N and P demand for shoots, plants take up nutrients from the soil but also recycle nutrients internally through resorption and reallocation from storage organs (e.g. roots), which allows the reuse of nutrients for new growth (Freschet & Roumet, 2017;Klimešová et al., 2018). Reallocation of N and P from roots is an important nutrient-use strategy for plant growth when

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Cherenkov Counting

Cited by 3 publications

References 417 publications

Applications of Polarization Imaging for Conventional and FLASH Radiotherapy Dosimetry

Applications of Polarization Imaging for Conventional and FLASH Radiotherapy Dosimetry

The effect of counting conditions on pure beta emitter determination by Cherenkov counting

Reallocation of nitrogen and phosphorus from roots drives regrowth of grasses and sedges after defoliation under deficit irrigation and nitrogen enrichment

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