DEVICE FOR IMAGING FLOW OF GAS supersonic nozzle ACCELERATOR FOR GAS CLUSTER ION

摘要

The invention relates to the field of accelerator technology, in particular to auxiliary devices for visualization of the gas flow from the supersonic nozzle in the formation of gas cluster ion beams. The proposed utility model allows for visualization of the gas flow from the supersonic nozzle in the conditions of formation of gas cluster ions with high precision and, consequently, to perform optimization of the source gas cluster ions, without leading to a significant complication of the equipment used. Technical result is achieved by the fact that in the proposed device including electrodes, a voltage source and a viewing window of the vacuum chamber, the electrodes are planar and located after the outlet section of the nozzle at a distance of 2-5 cm symmetrically relative to the central axis passing the gas stream and the distance between the electrodes is not less than 3 cm.