To improve imaging in the TEM a beam alignment need to be done before use. A Resource for this alignment is often a holey grid. A holey grid is usually a TEM grid support coated with a skinny plastic film as well as a stabilizing carbon layer.Toggle navigation M?u s?n ph?m M?u cúp pha lê M?u cup pha lê m?i nh?t M?u bi?u tr?ng pha lê M?u h?p ??n