Abstract: A reference density profile is generated in an outer circumference direction of a pipe having a reference welded portion on the basis of a reference fluoroscopic image generated from a radiation detection medium when a radiation source is disposed on a central axis of the pipe. A weld inspection density profile is generated in an outer circumference direction of a pipe having an inspection target welded portion on the basis of a weld inspection fluoroscopic image. On the basis of the reference density profile and the weld inspection density profile, density correction information is calculated. The density correction information is for correcting density irregularities in the weld inspection fluoroscopic image in the outer circumference direction of the pipe. On the basis of the density correction information, the density irregularities in the weld inspection fluoroscopic image arc corrected.

Abstract: A reference density profile is generated in an outer circumference direction of a pipe having a reference welded portion on the basis of a reference fluoroscopic image generated from a radiation detection medium when a radiation source is disposed on a central axis of the pipe. A weld inspection density profile is generated in an outer circumference direction of a pipe having an inspection target welded portion on the basis of a weld inspection fluoroscopic image. On the basis of the reference density profile and the weld inspection density profile, density correction information is calculated. The density correction information is for correcting density irregularities in the weld inspection fluoroscopic image in the outer circumference direction of the pipe. On the basis of the density correction information, the density irregularities in the weld inspection fluoroscopic image arc corrected.

Abstract: A reference density profile is generated in an outer circumference direction of a pipe having a reference welded portion on the basis of a reference fluoroscopic image generated from a radiation detection medium when a radiation source is disposed on a central axis of the pipe. A weld inspection density profile is generated in an outer circumference direction of a pipe having an inspection target welded portion on the basis of a weld inspection fluoroscopic image. On the basis of the reference density profile and the weld inspection density profile, density correction information is calculated. The density correction information is for correcting density irregularities in the weld inspection fluoroscopic image in the outer circumference direction of the pipe. On the basis of the density correction information, the density irregularities in the weld inspection fluoroscopic image are corrected.

Abstract: A reference density profile is generated in an outer circumference direction of a pipe having a reference welded portion on the basis of a reference fluoroscopic image generated from a radiation detection medium when a radiation source is disposed on a central axis of the pipe. A weld inspection density profile is generated in an outer circumference direction of a pipe having an inspection target welded portion on the basis of a weld inspection fluoroscopic image. On the basis of the reference density profile and the weld inspection density profile, density correction information is calculated. The density correction information is for correcting density irregularities in the weld inspection fluoroscopic image in the outer circumference direction of the pipe. On the basis of the density correction information, the density irregularities in the weld inspection fluoroscopic image are corrected.

Abstract: A pipe thickness measuring device 10 is provided, including a luminance profile obtaining unit obtaining luminance profiles of radiographic images of a pipe to be measured in a direction crossing the pipe, an outer diameter point detecting unit detecting outer diameter points of the pipe based on the obtained luminance profiles, a region setting unit setting a predetermined region inside two of the outer diameter points of the pipe detected by the outer diameter point detecting unit, and an inner diameter point detecting unit detecting inner diameter points of the pipe based on a luminance profile corresponding to the set predetermined region from among the luminance profiles obtained by the luminance profile obtaining unit.

Abstract: A protein dyeing and detecting method includes steps of fixing a protein electrophoresed on a gel on the gel using a fixing solution, dyeing the fixed protein with fluorescent dye for dyeing a protein which has a property of mainly acting on sodium dodecyl sulfide (SDS)-protein complex to dye a protein, irradiating the dyed protein with a stimulating ray and detecting fluorescent light emitted from the protein upon being irradiated to produce a fluorescent image of a protein, the fluorescent dye for dyeing a protein being most effectively stimulated with a stimulating ray having a wavelength between 440 nm to 500 nm or a wavelength between 510 nm to 580 nm and emitting fluorescent light whose peak wavelength ranges from 560 nm to 620 nm or from 600 nm to 660 nm. According to the thus constituted protein dyeing and detecting method, it is possible to produce a fluorescent image of a protein having high sharpness and low background noise.

Abstract: A sample placement portion is fixed to a frame. A stage and a cylindrical piezoelectric element are attached to the sample placement portion, and on this piezoelectric element, a sample (i.e., a semiconductor wafer) is positioned. A light collecting portion and a light receiving portion integrated together are attached slidably to frame for detecting the number and locations of contaminants. In addition, an analyzing portion for analyzing the types of the contaminants is slidably attached to the frame. Accordingly, it is made possible to reduce the size of the apparatus and to perform a highly reliable evaluation of the contamination.