JOURNAL OF MAGNETICSJOURNAL OF MAGNETICS
- pISSN : 1598-5385
- eISSN : 2233-6648
Journal of
Magnetics
Magnetics
Open Access
Quarterly
- pISSN : 1598-5385
- eISSN : 2233-6648
Editor's Choice
Magnetic Field–Based Dose Modulation in Diagnostic Radiology: A Feasibility Study
This study evaluated whether a static magnetic field can modulate the electron-associated component of dose
during diagnostic electromagnetic photon beam exposures. Doses were measured with a solid-state dosimeter at
60–110 kVp (10-kVp steps) on an X-ray radiation generator operated at 200 mA, 100 cm source-to-detector
distance, 1.0 s, and 20 × 20 cm field. For each kVp, 20 repeated measurements were acquired under two
conditions: no field versus a transverse ~0.5 T field generated by Nd magnets; output reproducibility was
verified (all CV ≤ 0.05). With the field applied, doses were consistently but slightly lower at 60–90 kVp (all twosided
P > 0.05). Statistically significant reductions appeared at higher kVp: 100 kVp, 21.325 ± 0.155 vs 21.245 ±
0.076 mGy (P = 0.048); 110 kVp, 24.970 ± 0.108 vs 24.910 ± 0.072 mGy (P = 0.047). These findings support the
feasibility of magnetic-field–induced dose modulation under diagnostic-energy conditions.
during diagnostic electromagnetic photon beam exposures. Doses were measured with a solid-state dosimeter at
60–110 kVp (10-kVp steps) on an X-ray radiation generator operated at 200 mA, 100 cm source-to-detector
distance, 1.0 s, and 20 × 20 cm field. For each kVp, 20 repeated measurements were acquired under two
conditions: no field versus a transverse ~0.5 T field generated by Nd magnets; output reproducibility was
verified (all CV ≤ 0.05). With the field applied, doses were consistently but slightly lower at 60–90 kVp (all twosided
P > 0.05). Statistically significant reductions appeared at higher kVp: 100 kVp, 21.325 ± 0.155 vs 21.245 ±
0.076 mGy (P = 0.048); 110 kVp, 24.970 ± 0.108 vs 24.910 ± 0.072 mGy (P = 0.047). These findings support the
feasibility of magnetic-field–induced dose modulation under diagnostic-energy conditions.
Current Issue - Vol.30 No.4
Journal of
Magnetics
Magnetics
Open Access
Quarterly
- pISSN : 1598-5385
- eISSN : 2233-6648
Highlight
- Magnetic Field–Based Dose Modulation in Diagnostic Radiology: A Feasibility Study Vol.30 , No.4, 2025, pp.837-841
- Double-Track PRML Detection for Two-Track Reading with a Wide-Track Reader in Shingled Magnetic Recording Systems Vol.30 , No.3, 2025, pp.465-469
- Determination of the Operating Current of the Bending Magnet in the KSTAR Neutral Beam Injector Vol.30 , No.2, 2025, pp.107-118
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