新的更为复杂的放射治疗技术要求辐射剂量计能够准确的测量三维剂量分布，提供高的空间分辨率。
New, complex radiotherapy delivery system techniques require dosimeters that are able to measure three-dimensional dose distributions accurately and with good spatial resolution.
给出了光热辐射测量(PTR)系统空间分辨率的定义。
The definition of spatial resolution in the PTR (photothermal radiometry) system is given.
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