Radiation detector with a scintillator, suitable for a pulsed radiation source

A radiation detector, comprising:

• a scintillator configured to emit a second radiation upon receiving a first radiation from a pulsed radiation source,
• pixels, and
• a controller;
• wherein each of the pixels is configured to detect the second radiation;
• wherein the pulsed radiation source is configured to emit the first radiation during ON periods and configured not to emit the first radiation during OFF periods;
• wherein the controller is configured to determine that the pulsed radiation source is at one ON period of the ON periods or at one OFF period of the OFF periods;
• wherein the controller is configured to cause the pixels to integrate signals with determination that the radiation source is at the one ON period and the controller is configured to cause the pixels not to integrate signals with determination that the radiation source is at the one OFF period;
• wherein the first radiation is X-ray and the second radiation is visible light.