A breakthrough

The Chairman of Nanox Korea, a convicted felon, decided to update his Facebook profile picture on February 25th.

In the comments about it, he clarifies that this is not an image of his head: 

• 혈관조영된 skull phantom 을 90KV, 14mA, 50mS 으로 calibration 없이 실험실에서 날거로 촬영 [which Google translates as Angiographic skull phantom was taken raw in the laboratory without calibration at 90KV, 14mA, 50mS]
• Digital X ray source(spindle type electron emitter)

And then he states:

1년 반 고생한 보람이지. 이제 본격적인 시작. 자네도 바빠질거야,

which Google translates as:

One and a half years of hard work paid off. Now it starts in full swing. You will be busy too.

So, is this some kind of a breakthrough?  Does Nanox finally have a working x-ray source that can be used in medical diagnostic imaging?

Based on what the Chairman wrote, the answer is simply no!  How come?  Isn't 90 kVp, 0.7 mAs (implied from 14 mA x 50 ms ) good enough?  That's not much worse than a regular cheap and small dental tube (such as CEI's OX/90, for example) that one can get for less than $100 on eBay, no?

The real problem is with what the Chairman writes about the "digital" x-ray source.  He is not an art school dropout, like Nanox Chairman - he supposedly has an engineering degree and spent at least some of his life, while not in prison, handling chips.  So he knows, or must know, that there is no such thing as a "spindle type electron emitter."  He might have meant a Spindt-type electron emitter, but a US-educated "engineer," who is supposed to be responsible for manufacturing the company's core technology at a brand new Fab cannot make such a mistake (if the technology were real, and if any manufacturing were to occur in the near future).  Moreover, while the electron emitter, if it were real, may have been somehow viewed as "digital," the x-ray source itself, that is, the tube, is definitely not digital, as the x-rays are supposed to be generated by indiscriminate and uncontrollable smashing of electrons onto a metal target - nothing digital about that.