n.准直仪（器；管）；照准（视准，光轴）仪；平行光管

The collimator is used to align the X-ray beam in a specific direction for accurate imaging.
照射器用于将X射线束对准特定方向以实现精确成像。
In the linear accelerator, the collimator helps to shape and control the intensity of the radiation beam.
在直线加速器中，照射器有助于塑造和控制辐射束的强度。
A collimator is an essential component in most medical imaging devices, such as CT scanners.
照射器是大多数医疗成像设备（如CT扫描仪）中的重要组件。
The laser collimator was adjusted to ensure that all mirrors were perfectly aligned for the telescope.
激光照射器被调整以确保望远镜的所有镜子都完全对齐。
By adjusting the collimator, we can reduce the scatter radiation and improve image quality in radiography.
通过调节照射器，我们可以在放射摄影中减少散射辐射并提高图像质量。
The new PET scanner incorporates a more advanced collimator design to improve spatial resolution.
新型PET扫描仪采用了更先进的照射器设计以提高空间分辨率。
During interventional procedures, the angiographic C-arm uses a collimator to focus the X-ray beam on the region of interest.
在介入性手术过程中，血管造影C臂使用照射器将X射线束聚焦在感兴趣区域上。
Engineers installed a specialized collimator to narrow the proton beam for precise cancer treatment.
工程师安装了专用照射器来缩小质子束，以进行精确的癌症治疗。
The gamma camera's collimator defines the solid angle of acceptance for detecting emissions from the patient.
γ相机的照射器定义了接受来自患者发射物的立体角。
Before conducting radiotherapy, the therapist carefully checked the alignment of the multi-leaf collimator to ensure targeted delivery of radiation.
在进行放射治疗之前，治疗师仔细检查了多叶照射器的对准情况，以确保辐射能准确地送达目标区域。