X-ray system and method for sampling image data

An X-ray imaging method, comprising:

• in a digital X-ray detector comprising an array of discrete picture elements each comprising a photodiode and a transistor, applying a first voltage to the transistors of the discrete picture elements prior to receipt of X-ray radiation;
• sampling data from the discrete picture elements during receipt of X-ray radiation while applying a second voltage to the transistors of the discrete picture elements not then being sampled, the second voltage being more negative than the first voltage.

An X-ray imaging system comprising:

• a digital X-ray detector comprising an array of discrete picture elements each comprising a photodiode and a transistor;
• and
• detector control circuitry configured to apply a first voltage to the transistors of the discrete picture elements, to apply a second voltage to the transistors of the discrete picture elements not then being sampled in preparation for acquisition of X-ray image data, the second voltage being more negative than the first voltage, and to sample data from the discrete picture elements during receipt of X-ray radiation while applying the second voltage to the transistors of the discrete picture elements not then being sampled.

A digital X-ray detector comprising:

• an array of discrete picture elements each comprising a photodiode and a transistor;
• and
• detector control circuitry configured to apply a first voltage to the transistors of the discrete picture elements, to apply a second voltage to the transistors of the discrete picture elements, to apply a second voltage to the transistors of the discrete picture elements not then being sampled in preparation for acquisition of X-ray image data, the second voltage being more negative than the first voltage, and to sample data from the discrete picture elements during receipt of X-ray radiation while applying the second voltage to the transistors of the discrete picture elements not then being sampled.