立体定向放射外科单位相对剂量测定用微硅珠闪烁体

IF 3.4 Q2 ONCOLOGY

Physics and Imaging in Radiation Oncology Pub Date : 2025-01-01 DOI:10.1016/j.phro.2025.100709

Chris J. Stepanek , Jack D. Aylward , Ronald Hartley-Davies , Lucy Winch

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引用次数: 0

摘要

这项工作描述了使用微硅珠（MSBs）的程序来验证立体定向放射外科单元的输出因子和剖面。msb在测量检测器输出比（DORs）和射弹剖面方面显示出可接受的剂量学精度，可达到5毫米的半最大宽（FWHM）。用msb测量的DORs在放射变色膜的1.5%以内，在微金刚石探测器的3%以内。测量的FWHM在计划系统和放射线变色膜的0.2 mm范围内。msb可作为放射性致色膜的有效替代品，用于射击轮廓和DORs的测量。

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Micro silica bead scintillators for the relative dosimetry of a stereotactic radiosurgery unit

This work describes the procedure of using Micro Silica Beads (MSBs) to verify the output factors and profiles of a stereotactic radiosurgery unit. MSBs have shown acceptable dosimetric accuracy for measurement of Detector Output Ratios (DORs) and shot profiles, down to a full width at half maximum (FWHM) of 5 mm. DORs measured with MSBs were within 1.5 % of radiochromic film, and 3 % of a microdiamond detector. Measured FWHM were within 0.2 mm of planning system and radiochromic film. MSBs can be used as an effective substitute to radiochromic film for measurement of shot profiles and DORs.

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来源期刊

Physics and Imaging in Radiation Oncology Physics and Astronomy-Radiation

CiteScore

5.30

自引率

18.90%

发文量

审稿时长

6 weeks