Introduction to X ray

INTRODUCTIONS

Radiography is a subject where we study about radiations like (x-rays, beta rays, gamma rays ).
The radiations was first discovered by sir Wilhelm Conrad Rontgen  in the year  November 8, 1895 at Wurzburg University.  He had darkened his laboratory and completely enclosed his crook's tube with black photographic paper so that he could better visualized the effect of the cathode x-ray in the tube.
                      He was surprised to note small glow coming from near placed sheet of paper painted with Barium platinocyanide. He confirmed this emotion of ray coming from the tube abd named them x-ray. Rontgen was able to report his experiment to the scientific community before the first noble prizes in physic in 1901. He produced and published the first medical x-ray image of his wife's hand.

Now about the subject radiography..  
                                                                i have already written that it is the subject that we deal with harmful radiations  . 

    Using these radiations like x-ray ,gamma rays . we take out the images of our internal parts like hard tissue and soft tissue. . If we jet fracture or any thing we do the radiography of that part. 
There are many devices that we use to take the images of our internal body like Computed radiography (CT scan) , Direct radiography (DR), Fluoroscopic   and many other .
                                                   
                                           
                      There are many harmful affects that are caused by radiations .
1. skin cancer
2. problem in reproductive system
3.Thyroid problem
4. nausea
5.vomiting
6.headache
7.some loss of white blood cell.etc

 But if these radiations were not discovered then it would be very difficult in diagnosis purposes .