To optimize imaging while in the TEM a beam alignment need to be carried out ahead of use. A Device for this alignment is actually a holey grid. A holey grid is usually a TEM grid aid coated with a thin plastic movie as well as a stabilizing carbon layer.Bên c?nh nh?ng ?u ?i?m nh? trên thì Decal nh?a trong có m?t h?n ch? khi?n cho nhi?u ng??i p