Marrale M, Brai M, Gennaro G, Triolo A, Bartolotta A, D'Oca M C, Rosi G
Dipartimento di Fisica e Tecnologie Relative, Università di Palermo, Viale delle Scienze, Edificio 18, 90128 Palermo, Italy.
Radiat Prot Dosimetry. 2007;126(1-4):631-5. doi: 10.1093/rpd/ncm128. Epub 2007 May 21.
In this paper, the results of a study on the electron spin resonance (ESR) dosimetry to measure thermal neutron fluence in a mixed radiation field (neutron and photons) are presented. The ESR responses of alanine dosemeters with different additives are compared. In particular, the (10)B-acid boric and the Gd-oxide were chosen to enhance the sensitivity of alanine dosemeters to thermal neutrons. Irradiations were carried out inside the thermal column of the TAPIRO reactor of the ENEA center, Casaccia Rome. The main results are a greater neutron sensitivity and a smaller lowest detectable fluence for the dosemeters with gadolinium than for dosemeters of alanine with (10)B, which is well known to be much more sensitive to thermal neutrons than simple alanine.
本文介绍了一项关于用电子自旋共振（ESR）剂量测定法测量混合辐射场（中子和光子）中热中子注量的研究结果。比较了添加不同添加剂的丙氨酸剂量计的ESR响应。特别地，选择了（10）B酸硼酸和氧化钆来提高丙氨酸剂量计对热中子的灵敏度。辐照在位于罗马卡萨西亚的ENEA中心的TAPIRO反应堆的热柱内进行。主要结果是，含钆剂量计的中子灵敏度更高，最低可探测注量更小，而含（10）B的丙氨酸剂量计对热中子的灵敏度比简单丙氨酸剂量计高得多，这是众所周知的。
