“Moving source”: test realization at VEPP-3 of a diffraction experiment with nanosecond time resolution

The purpose of this work is a demonstration of the basic possibility of the practical realization of the “moving source” idea for X-ray diffraction with nanosecond time resolution. The idea of “moving source” was published earlier. The principle of this idea is: a quick change of electron trajectory by the kicker is responsible for a quick change of direction of synchrotron radiation (SR). In such a way a “moving source” can be created. Using the “moving source” it is possible to scan a sample with the SR beam. As a result, diffraction with nanoseconds time resolution can be achieved . The experiment at the VEPP-3 storage ring has confirmed such a possibility. The following answers to the main questions were received: (1) SR intensities are enough for obtaining satisfactory statistics from one bunch (2) it is possible to realize synchronization of an impact with the motion of electrons in the storage ring and with the systems of image registration ; (3) it is possible to compensate the betatron oscillation which has arisen after the impact; (4) the background conditions are not so bad and do not hinder the registration of the diffracted radiation.