CAJ | 학술논문

为了研究极长基线中微子振荡,构造了一个大小为1m×1m×13m水基切伦科夫量能器模型.测量得到的水箱的有效衰减长度为(5.74±0.29)m,并且研究了光的收集能力随入射粒子角度变化的关系.同时发展了基于GEANT4软件包,包含有详细的光学过程的模拟程序,所得到的模拟结果与实验测量有很好的一致性.说明水箱可以作为水基切伦科夫量能器的可行性的方案.
위료연구겁장기선중미자진탕,구조료일개대소위1m×1m×13m수기절륜과부량능기모형.측량득도적수상적유효쇠감장도위(5.74±0.29)m,병차연구료광적수집능력수입사입자각도변화적관계.동시발전료기우GEANT4연건포,포함유상세적광학과정적모의정서,소득도적모의결과여실험측량유흔호적일치성.설명수상가이작위수기절륜과부량능기적가행성적방안.
The water tank prototype with a dimension of 1m × 1m × 13m was constructed as a building block of the Cerenkov calorimeter for very long baseline neutrino oscillation experiments. The effective attenuation length of the water tank was measured to be (5.74±0.29)m, and the light collection probability as a function of the incident angle of the particle is studied. Results are compared with a Monte Carlo simulation based on GEANT4 package which incorporates detailed optical processes. A good agreement is achieved and the water tank is feasible for the construction of the Cerenkov calorimeter.