Knezevic J, Mrdja D, Bikit K, Bikit I, Hansman J, Slivka J, Forkapic S
University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovica 3, 21000, Novi Sad, Serbia.
University of Novi Sad, Faculty of Sciences, Department of Physics, Trg Dositeja Obradovica 3, 21000, Novi Sad, Serbia.
Appl Radiat Isot. 2019 Sep;151:157-165. doi: 10.1016/j.apradiso.2019.06.009. Epub 2019 Jun 7.
Changes in cosmic-ray intensity can significantly influence the search for rare events or processes in nuclear and astroparticle physics through corresponding variations in detector background count rate. In this work, we present an approach to explore cosmic-ray intensity and corresponding cascade production of secondary particles in the detector vicinity using low-energy photon background spectra induced by cosmic rays at the earth's surface. The coincidence system based on a plastic scintillator and an extended range HPGe detector, including a multiparameter device, was used for the acquisition of low-energy photon spectra. This system was also simulated by the GEANT4 toolkit, and the simulated and experimental spectra were compared. Single aperiodic events, as well as possible periodic behavior of low-energy photon emission were searched for.
宇宙射线强度的变化会通过探测器本底计数率的相应变化，对核物理和天体粒子物理学中稀有事件或过程的搜寻产生显著影响。在这项工作中，我们提出了一种方法，利用地球表面宇宙射线诱发的低能光子本底谱，来探索宇宙射线强度以及探测器附近次级粒子的相应级联产生。基于塑料闪烁体和扩展量程高纯锗探测器的符合系统，包括一个多参数装置，被用于获取低能光子谱。该系统也用GEANT4工具包进行了模拟，并对模拟谱和实验谱进行了比较。我们搜索了单个非周期性事件以及低能光子发射可能的周期性行为。
