... and electric arc.2.2 Specification(1) X-ray generator: X-ray tube:Cu target, anode-grounding, fan ... , magnifying, digital counter, air pump , cooling fan , x-ray tube.4.2. The tube housing of orientation unit ... . Counter tube relative to the sample distance is adjustable at his arm, in order to meet and ... counter and uA meterUnder the condition of the X-ray penetrates and normal work of partly display ...