Source abstract
Abstract
Gel dosimeters are an important tool for radiotherapy dose verification due to their tissue equivalence, but their widespread use has been constrained by complex readout processes, limited spatial resolution, and instability of postirradiation. Herein, we use radiation-induced expansion, yielding a dose-dependent and continuous redshift in its structural color. This double network dosimeter can detect X-rays with a maximum sensitivity of 35.8 nm/Gy and spatial resolution exceeding 50 μm in the range of 0-10 Gy. Moreover, it exhibits excellent stability against environmental factors, including UV irradiation, and its dosimetric information (spectral reflection peak position) remains unchanged after 10 drying-wetting cycles. In addition, it is feasible for three-dimensional (3D) printing of complex shapes, a capability that is inaccessible to existing gel dosimeters. Therefore, the present study provides spatially precise gel dosimeters for advanced radiotherapy verification.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Advanced Radiotherapy Techniques · Hydrogels: synthesis, properties, applications · Photopolymerization techniques and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Key Laboratory of Neutron Science and Technology, Institute of Nuclear Physics and Chemistry
China Academy of Engineering Physics
School of Nuclear Science and Technology
University of Science and Technology of China
Funding
Beijing National Laboratory for Molecular Sciences · University of Science and Technology of China-Southwest University of Science and Technology Counterpart Cooperation and Development Joint Fund · Presidential Foundation of CAEP · State Key Lab of PV Science and Technology, Trina Solar, China · Jiangsu Province Science Fund for Distinguished Young Scholars · National Natural Science Foundation of China (NSFC)
References (37)
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