Space and time reversal symmetry violation in neutron optics

建立了t违反极化中子通过极化核靶的实验方法。我们发现，如果应用Goldberger和Watson的互易定理，系统误差可以被抵消。我们开发了一种新的方法来作为中子自旋偏振器和分析仪，即在双折射蓝宝石电池中开发3He偏振。利用3He中子自旋偏振仪、分析仪和迈斯纳片测定了中子偏振度。我们利用洛斯阿拉莫斯的中子偏振计进行了宇称违反中子自旋的实验。我们还研究了极化中子通过核靶的宇称破坏。为了研究核子间的弱相互作用，我们建立了一个违反宇称的中子辐射俘获质子的实验。为此，我们研制了一种大孔径3He中子偏振器、一种新型射频中子自旋鳍片、一种低中子吸收的锆液氢容器和一种高抗磁光倍增器。我们在洛斯阿拉莫斯进行了初步实验。

We established the experimental method of T-violating polarized neutron transmission through a polarized nuclear target. We found systematic errors are cancelled, if we apply the reciprocity theorem of Goldberger and Watson. We developed a new method for 3He polarization as neutron spin polarizer and analyzer, namely we developed 3He polarization in a birefringence sapphire cell.We developed neutron polarimetty by using 3He neutron spin polarizer and analyzer and a Meisner sheet. We carried out an experiment on parity violating neutron spin rotation by applying the neutron polarimeter at Los Alamos. We also carried out the study of parity violation on polarized neutron transmission through nuclear targets.We developed an experiment on parity violating neutron radiative capture of proton for the study of the weak interaction between nucleons. We developed a 3He neutron-polarizer of large aperture, a new radio-frequency neutron-spin flipper, a low neutron absorption vessel of liquid hydrogen made from zirconium and a high magnetic-resistant photo multiplier for this experiment. We carried out a preliminary experiment at Los Alamos.