High-voltage spiral voltage multiplier

A high-voltage spiral voltage multiplier comprising:

• an outer metal film;
• an inner metal film;
• a first insulating film;
• and
• a second insulating film,
• wherein the outer metal film and the inner metal film are constructed into a spiral bifilar winding configuration,
• the first insulating film is sandwiched between the outer metal film and the inner metal film,
• the second insulating film is sandwiched between the inner metal film and a further outer metal film adjacent thereto,
• wherein the outer metal film and the inner metal film are spirally bifilarly wound into N turns of winding, center positions of any two adjacent turns being axially offset by at least a predetermined offset distance,
• an equivalent capacitance between the outer metal film and the inner metal film is adjusted by adjusting parameters of the outer metal film, the inner metal film, the first insulating film, and the second insulating film, a difference between the equivalent capacitance adjusted and a capacitance of a non-offset center position being less than a predetermined threshold.