Online adaptive radiotherapy using the 1.5 Tesla MR-linac is feasible for SBRT (5â¯×â¯7â¯Gy) of pelvic lymph node oligometastases. The workflow allows full online planning based on daily anatomy. Session duration is less than 60â¯min. Quality assurance tests, including independent 3D dose calculations and film measurements were passed.
Lymph Nodes/radiation effects , Prostatic Neoplasms/radiotherapy , Radiosurgery/instrumentation , Feasibility Studies , Humans , Lymph Nodes/diagnostic imaging , Lymph Nodes/pathology , Lymphatic Metastasis , Magnetic Resonance Imaging/methods , Male , Particle Accelerators , Positron-Emission Tomography/methods , Prostatic Neoplasms/diagnostic imaging , Prostatic Neoplasms/pathology , Radiosurgery/methods , Radiotherapy Dosage , Radiotherapy, Image-Guided/methods
This study demonstrates the ability of ammonium uranyl peroxide nanoclusters U32R-NH4 to undergo exchange in between NH4(+) and trivalent (Nd(3+)) or tetravalent (Th(4+)) cations in the solid state. It paves the way for new promising routes for the synthesis of mixed uranyl peroxides. The exchange ability may also be considered for solution decontamination and synthesis of new mixed actinide-oxide precursors. Both of these applications could be used in the nuclear industry.
