Transmission type target, radiation generating tube having the transmission type target, radiation generator having the radiation generating tube, and radiation imaging apparatus having the radiation generator

A target for an X-ray generating tube comprising:

• a target layer generating an X-ray with an electron irradiation;
• and
• a support member containing carbon and supporting the target layer,
• wherein the target layer contains carbon as a metal carbide located in a region at where an X-ray is generated.

A method of producing a transmission type target having a target layer including a metal carbide, the method comprising:

• preparing a diamond base material;
• forming a metal layer comprising at least one metal selected from molybdenum, tantalum, and tungsten on one surface of the diamond base material;
• and
• forming a metal carbide layer containing a carbide of the metal by heating the diamond base material provided with the metal layer to diffuse carbon from the diamond base material to the metal layer and to cause carbonization.