Nanox celebrates the International day of radiology

Nanox celebrates.  

That is, Nanox CEO lies again on his blog.

First, he admits that Roentgen used a Crookes-type tube, which is a cold-cathode tube, when he discovered x-rays 126 years ago. not a thermionic or hot-cathode tube, as he has repeatedly lied in the past.  Then he correctly states:

Not many people know this, but for over 100 years the technology for generating X-rays has not changed.

Exactly right.  In fact, no one knows that for over 100 years the technology for generating x-rays has not changed, because it has.  With the invention of the hot-cathode tubes, or thermionic-emission tubes, by GE in 1913, the market share of cold-cathode tubes declined to basically nothing.  Other sources of x-rays were discovered and invented as well, such as the radioisotopes and the synchrotron.

So it is not completely true that 

In any X-Ray machine, the rays are still produced by thermionic emission technology...

but it is completely false that 

... that requires massive heating to develop the X-rays.

because the tiny Christmas tree lights, say 0.4W each, are hotter than the "hot" filament in a typical x-ray tube.

image based on Petr Kratochvil's work 

The real heat comes from the inefficient way of generating x-rays in any x-ray tube, be it cold-cathode or hot-cathode.  Electrons smash into the target/anode and only less than 1% of the energy is converted into usable x-rays, while the rest gets wasted as heat.  Yet, it is not a bigger problem than using, say, a 200W incandescent light bulb.

The outgoing CEO continues to lie:

Nanox developed the Cold Cathode X-ray tubes that are much smaller, and as per their name emit X-Rays at room temperature, which leads to considerable energy and cost savings.

Nanox has not developed any functional cold-cathode tubes - they are all fake and bigger than the regular dental tubes they are supposed to replace.  Even if they were real, they would not emit x-rays at room temperature, because the anode temperature can reach 5,000 degrees Fahrenheit.  And, of course, cold cathode does not mean cold or room temperature, it just means electron emission above the emission by the thermionic effect alone. The proposed Nanox tube, if ever made functional, will not bring any energy and cost savings -  just the opposite, as evidenced by all cold-cathode tubes in the past characterized by poor and unreliable performance and short life.

Mr. Poliakine then contradicts himself:

But even before Coronavirus, most of the people in the world did not have access to medical screening because they couldn't afford it or are too far away from a machine and a doctor. Nanox aims to change this.

That is a complete lie, of course, but you should forgive him, as a con-artist has often other things to worry about than remember what he wrote in his own blog more than a year ago:

In Israel, as in practically every country in the world, we have a real shortage of testing kits. Lung scans on the other hand are accessible, cheap, and the results are immediate - a critical factor in patient outcomes and in preventing the spread of the infection.

Lung scans, in practically every country in the world, are accessible, cheap, and the results are immediate, wrote Mr. Poliakine.  Lung scans are some kind of medical imaging, no? Typically, using x-rays, no?  Even CT (as shown in his March 2020 blog post)? 

Join us in our journey.

Sure.