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DOE OSTI · 1808820

A Diamagnetic-Loop-Based Beam Radius Monitor (BRM)

Smith, Horace Vernon·Broste, William B.·Ekdahl, Carl August Jr.
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Abstract

We describe a non-interceptive beam radius monitor that employs a diamagnetic loop. In order to increase the signal strength, the diamagnetic loop radius is considerably smaller than the outer wall radius, the device is placed inside a specially built solenoid magnet to allow independent adjustment of the guide magnetic field strength, and there are two counter-wound diamagnetic loops to double the signal strength and to eliminate common mode signals. This device is calibrated and the magnitude of the electron beam offset/tilt contribution to the measured radius estimated. This device is ready to be validated on an electron induction LINAC such a DARHT-I or DARHT-II.

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Smith, Horace Vernon, Broste, William B., Ekdahl, Carl August Jr.. 2021-07-13. A Diamagnetic-Loop-Based Beam Radius Monitor (BRM). https://doi.org/10.2172/1808820

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