Design of the Space Simulation Chamber for the Space Part Test Based on the Proton Beam

New space is a technology development tendency related with the space mostly led by the private company in recent days, whereas old space was led by the government and military many years ago. One of the targets of the new space is a small-sized low earth orbit satellite, whose life is about 3 years. In order to reduce the cost, commercially available off the shelf (COTS) are tried to be used in many parts of the satellite [1]. The COTS which is going to be used as a space part should be confirmed its hardness to space radiation. There are also several programs, one of them is “Space Pioneer Project”, which support the space part development in National institutes and private companies in Korea. When they succeed in development of the space part, they should test the part in radiation environment in order to confirm the radiation hardness of the developed part. Until now, many single event effect (SEE) tests have been done by using a 100-MeV proton accelerator at Korea Multipurpose Accelerator Complex (KOMAC). But most of them has been driven by the major companies and there were no systematic test procedures for the beginners in this field. A program called “Development of Evaluation Technology for Space Parts” has started to develop the space radiation environment, improve the test conditions and setup test procedures in 2021. One of the goals of the program is to develop a space simulation chamber. Whereas a general space simulation chamber is a thermal vacuum chamber [2], this chamber should accommodate the function of proton beam irradiation. In this paper, a design of the space simulation chamber for proton beam test is presented.