Connection inspecting apparatus, connection inspecting method, and recording medium for recording programs executing the method

A connection inspecting method for inspecting a connected part, which comprises:

• applying a radiation to the connected part of members with an application condition kept invariant, and then converting a radiation passed through the connected part to a visible light;
• picking up transmission images of the connected part expressed by the visible light for a plurality of number of times with changing a storage time;
• forming sub thickness images corresponding to the respective plurality of the transmission images of different storage times on the basis of a relationship between a brightness density of the transmission image and a thickness of the connected part;
• and
• forming a thickness superimposed image by adding the plurality of sub thickness images to each other so as to inspect the connected part.

A computer readable recording medium for recording programs to make a computer execute:

• a process of applying a radiation to a connected part of members with an application condition kept invariant, and converting a radiation passed through the connected part to a visible light;
• a process of picking up transmission images of the connected part expressed by the visible light for a plurality of the number of times with changing a storage time;
• a process of forming sub thickness images corresponding to the respective transmission images of the different storage times on the basis of a relationship between a brightness density of the transmission image and a thickness of the connected part;
• and
• a process of adding the plurality of sub thickness images to each other so as to form a thickness superimposed image.

A connection inspecting apparatus which comprises:

• an irradiation device (411) for applying a radiation to a connected part;
• a scintillator (412) for converting a radiation passed through the connected part to a visible light;
• an imaging device (413) for picking up a transmission image of the connected part generated from the scintillator;
• and
• an image forming device (451) for forming brightness information on the basis of the transmission image supplied from the imaging device of a first connected part (5011) and a second connected part (5012) of an object (421, 422) to be inspected which overlap at a part (5013) in a thicknesswise direction thereof, and for forming an image of only the second connected part on the basis of the brightness information.

A connection inspecting method, which comprises:

• applying a radiation to an object (421, 422) to be inspected which has a first connected part (5011) overlapping with a second connected part (5012) at a part (5013) in a thicknesswise direction of the object, and converting a radiation passed through the object to a visible light;
• forming brightness information on the basis of a transmission image of the first connected part and the second connected part in the overlap state which is obtained through the conversion to the visible light;
• and
• forming an image of only the second connected part on the basis of the brightness information.

A computer readable recording medium for recording programs to make a computer execute:

• a process of applying a radiation to an object (421, 422) to be inspected which has a first connected part (501) overlapping with a second connected part (5012) at a part (5013) in a thickness direction of the object;
• a process of forming brightness information based on a transmission image of the first connected part and the second connected part in the overlap state which is obtained by converting a radiation passed through the object to a visible light;
• and
• a process of forming an image of only the second connected part on the basis of the brightness information.