X-ray device, method, manufacturing method for structure, program, and recording medium on which program is recorded

A method for acquiring information related to a structure of a measuring object by irradiating the measuring object with X-ray, the method comprising:

• irradiating the measuring object with the X-ray, and detecting transmission X-ray transmitted through the measuring object;
• generating first information, based on an image reconstructed from a result of detecting the transmission X-ray, the first information including information of an area in which an absorption coefficient of X-ray detected falls within a first range and information of an area in which an absorption coefficient of X-ray detected falls within a second range that is different from the first range;
• acquiring ratio information indicating a ratio between a first substance and a second substance included in the measuring object;
• based on the ratio information and the first information, generating second information including information of an area which corresponds to the first substance and in which an absorption coefficient of X-ray falls within a third range obtained by merging the first range and the second range, so that a frequency distribution of signal intensity representing the absorption coefficient within the first range and the absorption coefficient within the second range is reconstructed to a frequency distribution of signal intensity representing the absorption coefficient within the third range;
• and
• generating a modified image in which an area corresponding to the first substance is determined based on the second information.

A non-transitory computer-readable recording medium storing a computer program configured to cause a computer connected to an X-ray device to carry out a control of the X-ray device, the computer program comprising instructions for controlling the X-ray device to carry out:

• irradiating a measuring object with X-ray, and detecting transmission X-ray transmitted through the measuring object;
• generating first information, based on an image reconstructed from a result of detecting the transmission X-ray, the first information including information of an area in which an absorption coefficient of X-ray detected falls within a first range and information of an area in which an absorption coefficient of X-ray detected falls within a second range that is different from the first range;
• acquiring ratio information indicating a ratio between a first substance and a second substance included in the measuring object;
• based on the ratio information and the first information, generating second information including information of an area which corresponds to the first substance and in which an absorption coefficient of X-ray falls within a third range obtained by merging the first range and the second range, so that a frequency distribution of signal intensity representing the absorption coefficient within the first range and the absorption coefficient within the second range is reconstructed to a frequency distribution of signal intensity representing the absorption coefficient within the third range;
• and
• generating a modified image in which an area corresponding to the first substance is determined based on the second information.