辐照剂量、储存时间和温度对辐照燕麦、玉米和小麦中电子自旋共振信号的影响。
Effect of irradiation dose, storage time and temperature on the ESR signal in irradiated oat, corn and wheat.
作者信息
Murrieta H, Muñoz E, Adem E, Burillo G, Vazquez M, Cabrera E
机构信息
Instituto de Fisica, Universidad Nacional Autónoma de México, Mexico, Mexico DF.
出版信息
Appl Radiat Isot. 1996 Nov-Dec;47(11-12):1657-61. doi: 10.1016/s0969-8043(96)00238-2.
Results obtained for electron-irradiated oat, corn and wheat kernels are discussed. The applied irradiation doses were up to 160 kGy. For doses up to approx. 50 kGy the number of free radicals produced by the irradiation is linear with the absorbed dose; moreover, the decay at room temperature in the dark or in the presence of light is quite similar. These facts point to the possible use of these kernels as dosimeters. An analysis of the free radical decay as a function of time and temperature shows the contribution of at least three types of radicals, whose half-lifes, radiochemical yields and activation energies are given.
讨论了电子辐照燕麦、玉米和小麦籽粒所获得的结果。施加的辐照剂量高达160千戈瑞。对于高达约50千戈瑞的剂量，辐照产生的自由基数量与吸收剂量呈线性关系；此外，在黑暗或光照条件下于室温下的衰减非常相似。这些事实表明这些籽粒有可能用作剂量计。对自由基衰减随时间和温度变化的分析表明至少有三种类型的自由基起作用，给出了它们的半衰期、放射化学产额和活化能。
Zotero 插件