Ghelawi M A, Moore J S, Dodd N J
University of Salford, U.K.
Appl Radiat Isot. 1996 Nov-Dec;47(11-12):1641-5. doi: 10.1016/s0969-8043(96)00154-6.
One variety (Aple) of Libyan dry dates (Phoenix dactylifera L.) was irradiated in a 60Co source to absorbed doses of 0.8, 1.0, 1.5 and 2.0 kGy. Unirradiated date stone contains a radical with a single line g = 2.0045, feature A. Irradiation to a dose of 2.0 kGy (the recommended dose for fruits in U.K.) induces the formation of additional radicals with signals g = 1.9895 and 2.0159, feature C. The single line having g = 2.0045 decays in both unirradiated and irradiated samples whereas the additional signals g = 1.9895 and 2.0159 remain almost unchanged over a period of time 15 months stored at room temperature and 4 degrees C.
将利比亚干枣（椰枣，学名Phoenix dactylifera L.）的一个品种（Aple）置于钴-60源中进行辐照，吸收剂量分别为0.8、1.0、1.5和2.0千戈瑞。未辐照的枣核含有一个g = 2.0045的单一线状自由基，特征A。辐照至2.0千戈瑞剂量（英国针对水果的推荐剂量）会诱导形成具有g = 1.9895和2.0159信号的额外自由基，特征C。g = 2.0045的单一线状自由基在未辐照和辐照样品中都会衰减，而额外的g = 1.9895和2.0159信号在室温及4摄氏度下储存15个月的时间内几乎保持不变。
