So, today I finally reached a fantastic conclusion: any microcrystalline powder substance, which can be exposure to an x ray machine, can get so many radioactivity tha might be used for any dirty bomb. That opens the possibility of anyone can build the bomb. For any good dirty bomb its needed at least 500 microcuries, and that its possible to achieve with 100 gr of powder.
X-ray powder photograph A photograph produced by monochromatic X-irradiation of a sample of microcrystalline powder placed at the centre of a circular camera, e.g. a Debye-Scherrer camera. Diffracted X-rays are recorded on a strip of film wrapped around the circumference of the camera. The angular position of the diffracted X-rays on the film gives structural information about the sample. See also X-RAY DIFFRACTION CRYSTALLOGRAPHY
X-ray powder photograph A photograph produced by monochromatic X-irradiation of a sample of microcrystalline powder placed at the centre of a circular camera, e.g. a Debye-Scherrer camera. Diffracted X-rays are recorded on a strip of film wrapped around the circumference of the camera. The angular position of the diffracted X-rays on the film gives structural information about the sample. See also X-RAY DIFFRACTION CRYSTALLOGRAPHY
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