1. Carboact Charcoal Specific., https://www.carboactinternational.com/, Last time accessed: 2023-October-17.
2. A study on the radon removal performance of low background activated carbon;Chen;J. Inst. Met.,2022
3. Limits for qualitative detection and quantitative determination. Application to radiochemistry;Currie;Anal. Chem.,1968
4. Hamamatsu Photonics Co, https://www.hamamatsu.com/, Last time accessed: 2023-October-17.
5. Determination of the Characteristic Limits (Decision Threshold, Detection Limit and Limits of the Confidence Interval) for Measurements of Ionizing Radiation-Fundamentals and Application,2019