Magnetic field quality conversion factors experimentally measured in clinical MR-linac beams for seven MR-compatible ionization chamber models.

• Tác giả: Jennie Crosby, Wesley Culberson, Carri Glide-Hurst, Nathan Orlando, Arman Sarfehnia
• Ngôn ngữ: eng
• Ký hiệu phân loại: 636.681 Swans
• Thông tin xuất bản: United States : Journal of applied clinical medical physics , 2025
• Bộ sưu tập: NCBI
• ID: 700308

Tóm tắt

PURPOSE: The purpose of this work was to experimentally quantify MR-compatible ionization chamber response for 1.5T Elekta Unity and 0.35T ViewRay MRIdian MR-linac systems through the determination of the magnetic field quality conversion factor, k METHODS: Seven MR-compatible ionization chamber models from Standard Imaging and PTW were evaluated. Both the quality conversion factor k RESULTS: Beam quality conversion (k CONCLUSIONS: This work provides critical experimental validation of MR-compatible ionization chamber performance, with a direct comparison of measured k