B dot Medical touts proton beam-bending magnet technology

2021 06 28 21 34 5457 2021 06 28 B Dot Medical Magnet 20210628211040

B dot Medical is highlighting the successful performance of a superconducting bending magnet that could be used as part of a compact proton cancer therapy system.

In a cooling and conducting energization test, the magnet generated a high magnetic field, the company said. Its use could make proton cancer therapy systems smaller and less expensive, according to the firm.

B dot Medical's superconducting magnet. Image courtesy of B dot Medical.B dot Medical's superconducting magnet. Image courtesy of B dot Medical.

Conventional proton therapy systems are extremely large because they use normal-conducting electromagnets for the gantry, according to the company. This generates a strong magnetic field that bends the proton beam inside the magnet, rotating it around the patient.

But B dot Medical has designed a compact proton therapy system with a nonrotating gantry -- a feat made possible by bending the proton beam.

B dot Medical next plans a pattern operation test to control the magnetic field generated by the superconducting magnet and a proton beam test; it will then apply for Pharmaceutical and Medical Device Act clearance from the U.S. Food and Drug Administration.

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