碳离子束放射治疗用蓝宝石剂量计传感器

IF 0.4 4区 物理与天体物理 Q4 PHYSICS, MULTIDISCIPLINARY
A. P. Vorobiev, A. G. Vasileva, S. N. Golovnia, A. P. Soldatov, K. V. Sukharev, O. P. Tolbanov, A. V. Tyazhev, A. E. Vinnik, M. S. Skakunov, A. N. Zarubin
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引用次数: 0

摘要

本研究首次提出了175和380 MeV/核子碳离子束在蓝宝石传感器上的实验结果。测量包括传感器信号随外加电压(50-500 V)的变化曲线,信号随碳离子束强度的变化,以及EBT - 3放射变色膜(位于传感器前面)中吸收剂量与传感器记录的总电荷之间的相关性。此外,在相对剂量计监测辐照剂量后,在500 V恒定光束强度下评估信号稳定性。首次用蓝宝石传感器测量了水模体中的微分吸收剂量分布(布拉格曲线)。在7.0·107 ~ 4.5·108离子/脉冲的光束强度范围内,探测器信号记录在500 V下,积分时间为900 ms。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Sapphire dosimetric sensors for carbon ion beam radiation therapy

Sapphire dosimetric sensors for carbon ion beam radiation therapy

This study presents the first experimental results on sapphire sensors tested with 175 and 380 MeV/nucleon carbon ion beams. The measurements include the sensor signal curves of dependence on applied voltage (50–500 V), the signal variations with carbon ion beam intensity, and the correlation between absorbed dose in EBT‑3 radiochromic film (positioned in front of the sensors) and total charge registered by the sensors. Additionally, signal stability is assessed at 500 V under constant beam intensity following the irradiation dose monitoring by a relative dosimeter. For the first time, the differential absorbed dose distribution in a water phantom (Bragg curve) is measured using sapphire sensors. The detector signals are recorded at 500 V with a 900 ms integration time across the beam intensities ranging from 7.0·107 to 4.5·108 ions/pulse.

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来源期刊
Russian Physics Journal
Russian Physics Journal PHYSICS, MULTIDISCIPLINARY-
CiteScore
1.00
自引率
50.00%
发文量
208
审稿时长
3-6 weeks
期刊介绍: Russian Physics Journal covers the broad spectrum of specialized research in applied physics, with emphasis on work with practical applications in solid-state physics, optics, and magnetism. Particularly interesting results are reported in connection with: electroluminescence and crystal phospors; semiconductors; phase transformations in solids; superconductivity; properties of thin films; and magnetomechanical phenomena.
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