New high resolution radiation dose mapping of special type polymer-gel dosimeters using mini-MRI scanner of high (4.7 Tesla) magnetic field

凝胶剂量计的主要优点是三维剂量测定。它们的主要局限性是空间分辨率低。我们建议制造特殊类型的凝胶，并首次使用4.7特斯拉微型扫描仪进行剂量映射。增加磁场与用于场耗散的小孔相结合将极大地提高空间分辨率，低至微米(微剂量学)。这项新技术将使凝胶剂量计适用于放射治疗、工业和所有其他辐射领域。此外，我们将采用新的参数进行剂量映射，预计它对辐射比目前使用的松弛时间更敏感。

Gel dosimeters main advantage is dose determination in 3-dimensions. Their main limitation is low spatial-resolution. We propose fabrication of special-type gels and for the first time use the 4.7 Tesla mini-scanner for dose mapping. Increased magnetic field combined with a small aperture for field dissipation will greatly improve spatial resolution down to micrometers (micro-dosimetry). This new technique will render gel-dosimeters suitable for applications in radiotherapy, industrial and all other radiation fields. Moreover, we will employ new parameter for dose mapping, which is expected to be more sensitive to radiation than the currently used relaxation times