辐照
剂量计
材料科学
电离室
重复性
剂量学
吸收剂量
光学
电离辐射
核医学
X射线
光电子学
放射化学
电离
物理
化学
医学
核物理学
离子
量子力学
色谱法
作者
Aleksi Saikkonen,Jarkko Niemelä,Petri Sipilä,Jani Keyriläinen
标识
DOI:10.1016/j.ejmp.2019.03.004
摘要
The main objective of this study was to commission a commercial x-ray irradiation system to be used for cell and small animal studies.Evaluated characteristics of an x-ray irradiator included dose linearity and dose repeatability with respect to time, x-ray beam profiles, light field to irradiation field agreement and absolute radiation dose. Radiochromic films, ionization chambers and radiophotoluminescence dosimeters were used for dosimetry and the maximum settings of the irradiator were applied.The dose was linear with time using several voltage settings and the dose repeatability with time was within 5% beyond 15 s of irradiation time. The x-ray beam profiles were acceptable, flatness being less than 4%. The light field to irradiation field agreement appeared to have a maximum difference of 0.5 cm; the irradiation field being closer to the irradiator's door than the light field.The MultiRad 350 x-ray irradiation system can be used in a safe and controlled manner for irradiating cells and small animals. However, the user should be careful to verify the filter position prior the irradiation.
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