A new method for analyzing the collimation angle of a neutron Soller collimator is described. A Gaus- sian distribution formula is used to define the angular distribution function of the neutron source and the neutron...A new method for analyzing the collimation angle of a neutron Soller collimator is described. A Gaus- sian distribution formula is used to define the angular distribution function of the neutron source and the neutron transmission function of the Soller collimator. A relationship between the FWHM of the collimator rocking curve and the collimation angle is derived. Using this method, some rocking curve experiment results are analyzed. The results show that the new function can be a good theoretical model for fitting the experimental data, especially for the data of two collimators with different collimation angles.展开更多
基金Supported by National Natural Science Foundation of China(11205248)
文摘A new method for analyzing the collimation angle of a neutron Soller collimator is described. A Gaus- sian distribution formula is used to define the angular distribution function of the neutron source and the neutron transmission function of the Soller collimator. A relationship between the FWHM of the collimator rocking curve and the collimation angle is derived. Using this method, some rocking curve experiment results are analyzed. The results show that the new function can be a good theoretical model for fitting the experimental data, especially for the data of two collimators with different collimation angles.
