Ziemek T, Jęczmieniowski A, Cacko D, Broda R, Lech E
National Centre for Nuclear Research Radioisotope Centre POLATOM, Andrzeja Sołtana 7, 05-400 Otwock, Poland.
National Centre for Nuclear Research Radioisotope Centre POLATOM, Andrzeja Sołtana 7, 05-400 Otwock, Poland.
Appl Radiat Isot. 2016 Mar;109:290-295. doi: 10.1016/j.apradiso.2015.12.017. Epub 2015 Dec 5.
A new 4π(LS)-γ coincidence system (TDCRG) was built at the NCBJ RC POLATOM. The counter consists of a TDCR detector in the beta channel and scintillation detector with NaI(Tl) crystal in the gamma channel. The system is equipped with a digital board with FPGA, which records and analyses coincidences in the TDCR detector and coincidences between the beta and gamma channels. The characteristics of the system and a scheme of the FPGA implementation with behavioral simulation are given. The TDCRG counter was validated by activity measurements on (14)C and (60)Co solutions standardized in RC POLATOM using previously validated methods.
波兰国家核物理研究所（NCBJ RC POLATOM）建造了一个新的4π(LS)-γ符合系统（TDCRG）。该计数器由β通道中的TDCR探测器和γ通道中带有碘化钠（铊）晶体的闪烁探测器组成。该系统配备了一块带有现场可编程门阵列（FPGA）的数字板，用于记录和分析TDCR探测器中的符合事件以及β通道和γ通道之间的符合事件。给出了该系统的特性以及带有行为仿真的FPGA实现方案。使用先前验证过的方法，通过对在波兰国家核物理研究所标准化的¹⁴C和⁶⁰Co溶液进行活度测量，对TDCRG计数器进行了验证。
