Buchillier T, Aroua A, Bochud F O
University Institute of Applied Radiation Physics, Grand-Pré 1, 1007 Lausanne, Switzerland.
Radiat Prot Dosimetry. 2007;124(4):319-26. doi: 10.1093/rpd/ncm216. Epub 2007 May 10.
Spectrometric and dosimetric measurements were made around a cask containing spent fuel and a cask containing high-level radioactive waste at the Swiss intermediate waste and spent fuel storage facility. A Bonner sphere spectrometer, an LB 6411 neutron monitor and an Automess Szintomat 6134A were used to characterise the n-gamma fields at several locations around the two casks. The results of these measurements show that the neutron fluence spectra around the cask containing radioactive waste are harder and higher in intensity than those measured in the vicinity of the spent fuel cask. The ambient dose equivalents measured with the LB 6411 neutron monitor are in good agreement with those obtained using the Bonner spheres, except for locations with soft neutron spectra where the monitor overestimates the neutron ambient dose equivalent by almost 50%.
在瑞士中间废物和乏燃料储存设施，围绕一个装有乏燃料的桶和一个装有高放废物的桶进行了能谱和剂量测量。使用一个邦纳球谱仪、一个LB 6411中子监测器和一个Automess Szintomat 6134A来表征两个桶周围几个位置的中子-γ场。这些测量结果表明，装有放射性废物的桶周围的中子注量谱比在乏燃料桶附近测量的谱更硬且强度更高。除了中子谱较软的位置，LB 6411中子监测器测量的周围剂量当量与使用邦纳球获得的结果吻合良好，在这些软中子谱位置，该监测器高估中子周围剂量当量近50%。
