具有自动校准功能的SiPM-based Anger中子照相机
SiPM-based neutron Anger camera with auto-calibration capabilities
摘要：
我们目前的中子愤怒相机的基础上的锂-6加载铈激活硅酸盐玻璃闪烁体（33.3 × 33.3 × 1 mm 3）和64硅光电倍增器阵列的表征结果。用在图形处理单元（GPU）上实现的统计方法来执行闪烁事件的重建。我们证明，光响应模型的探测器可以获得洪水照射校准数据使用一个无监督的迭代过程。有效视场为28 x 28 mm 2。在2.5A中子束下测量的空间分辨率优于0.6mm半高宽，中子峰能量分辨率为11%。
英文摘要：
We present characterization results of a neutron Anger camera based on a lithium-6 loaded cerium activated silicate glass scintillator (33.3 x 33.3 x 1 mm3) and an array of 64 silicon photomultipliers. Reconstruction of the scintillation events is performed with a statistical method, implemented on a graphics processing unit (GPU). We demonstrate that the light response model of the detector can be obtained from flood irradiation calibration data using an unsupervised iterative procedure. The useful field of view is 28 x 28 mm2. The spatial resolution measured at 2.5 A neutron beam is better than 0.6 mm FWHM and the energy resolution at the neutron peak is 11%.
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