Compact 2D scanner magnet with trapezoidal coils

A system for scanning ion beams, the system comprising:

• an accelerator for accelerating an ion beam towards a two-dimensional (2D) target area;
• and
• a 2D scanning magnet configured to scan the ion beam across the 2D target area, the 2D scanning magnet comprising:
• a vertical field trapezoidal coil oriented along an axis comprising:
• a top coil that is configured to receive a first input electrical current flowing through the top coil in a first direction, and
• a bottom coil that is configured to receive a second input electrical current flowing through the bottom coil in the first direction;
• and
• a horizontal field trapezoidal coil that is disposed proximate to the vertical field trapezoidal coil and is rotated about the axis relative to the vertical field trapezoidal coil by an angle, the horizontal field trapezoidal coil comprising:
• a left coil that is configured to receive a third input electrical current flowing through the left coil in a second direction, and
• a right coil that is configured to receive a fourth input electrical current flowing through the right coil in the second direction.

A method for scanning ion beams, the method comprising:

• directing an ion beam along an axis towards a 2D scanning magnet configured to scan the ion beam across a 2D target area, the 2D scanning magnet comprising:
• a vertical field trapezoidal coil oriented along an axis comprising:
• a top coil that is configured to receive a first input electrical current flowing through the top coil in a first direction, and
• a bottom coil that is configured to receive a second input electrical current flowing through the bottom coil in the first direction;
• and
• a horizontal field trapezoidal coil that is disposed proximate to the vertical field trapezoidal coil and is rotated about the axis relative to the vertical field trapezoidal coil by an angle, the horizontal field trapezoidal coil comprising:
• a left coil that is configured to receive a third input electrical current flowing through the left coil in a second direction, and
• a right coil that is configured to receive a fourth input electrical current flowing through the right coil in the second direction;
• and
• scanning the ion beam across the 2D target area in a first direction and a second direction by sequentially adjusting a propagation direction of the ion beam with the 2D scanning magnet, wherein the first direction and the second direction are orthogonal to the axis.