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Updated: May 29, 2025

Characterization of Recombination Effects in a Liquid Ionization Chamber Used for the Dosimetry of a Radiosurgical Accelerator
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使用温斯顿 - 卢茨测试,高精度定位辐射同心:对聚合器角度,幻影位置和场面大小的影响

Weiliang Du1

  • 1Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.

Journal of applied clinical medical physics
|February 4, 2025
PubMed
概括

在温斯顿-卢茨 (WL) 测试中优化聚合器角度可以将辐射同心误差降至0.1mm以下. 场尺寸没有显著的影响,使用静态球轴承 (BB) 参考提高了准确性.

关键词:
温斯顿 - 卢茨测试试验质量保证 质量保证 质量保证辐射是同中心的辐射.

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Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device

Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
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