A measurement device includes a sensing portion and a measuring portion. The sensing portion contains at least a fluorescent material whose emitting of fluorescent light ceases due to an action of a radioactive beam. The measuring portion measures a radiation quantity of the radioactive beam, with which the sensing portion is irradiated, based on an amount of decrease in the intensity of the fluorescent light emitted by the fluorescent material contained in the sensing portion when the radioactive beam acts on at least a portion of the fluorescent material. The fluorescent light is emitted due to irradiation of the fluorescent material by an excitation source.

Provided is a scintillator panel with reduced deterioration in brightness due to irradiation and higher brightness. A scintillator panel including a substrate and a scintillator layer containing phosphors, in which the scintillator layer includes a binder resin having a -conjugated structure composed of seven or more atoms; in which the glass transition temperature of the binder resin is from 30 to 430 C.; and the thickness of the scintillator layer is from 50 to 800 m.

The present invention includes: a radiation detecting unit including a fluorescent body expressed by the formula ATaO.sub.4: B, C (in the formula, A is selected from at least one kind of element from among rare-earth elements involving 4f-4f transitions, B is selected from at least one kind of element, different from A, from among rare-earth elements involving 4f-4f transitions, and C is selected from at least one kind of element from among rare-earth elements involving 5d-4f transitions); an optical fiber that transmits photons generated by the fluorescent body; a light detector that converts the photons transmitted via the optical fiber 3 one by one into electrical pulse signals; a counter that counts the number of electrical pulse signals converted by the light detector; an analysis and display device 6 that obtains a radiation dose rate on the basis of the number of electrical pulse signals counted by the counter.

The invention relates to a method for determining the quality of an imaging plate, comprising the steps of carrying out an exposure of the imaging plate, carrying out a scan of the imaging plate in order to determine an image, determining a signal-to-noise ratio of the image or/and carrying out edge recognition on the image and calculating a quality value of the imaging plate on the basis of the signal-to-noise ratio of the image or/and on the basis of the recognized edge structure. Furthermore, the invention relates to an imaging plate scanner for carrying out such a method.

Provided is a method of manufacturing a laminated scintillator panel having a structure in which a scintillator layer and a non-scintillator layer are repeatedly laminated in a parallel direction perpendicular to incidence of radiation, characterized by including a step of joining the scintillator layer and the non-scintillator layer. The present invention provides a method of manufacturing a lattice-shaped laminated scintillator panel capable of enlarging the area and increasing the thickness with means completely different from a prior art in which a silicon wafer is used.

A scintillator structure includes a plurality of cells and a reflector covering the plurality of cells. Here, each of the plurality of cells includes a resin and a phosphor, and the phosphor contains gadolinium oxysulfide. A breaking strength of an interface between each of the plurality of cells and the reflector is 900 gf or more.

This invention relates to a thermoluminescent phosphor for the measurement of low radiation doses, including calcium sulphate (CaSO.sub.4), Dysprosium (Dy) and manganese (Mn), wherein Dy and Mn are present as dopants. A process for the preparation of a thermoluminescent phosphor is also provided. The process includes the steps of: separately dissolving calcium sulphate (CaSO4), Dysprosium chloride (DyCh) and Manganese chloride (MnC) in hot concentrated sulphuric acid, to obtain sulphuric acid solutions of CaSO4, DyCb and MnCb; mixing the solutions; and followed by slow evaporation of the solvent to obtain a powder of microcrystalline phosphor of CaSO4:Dy, Mn.

A system having an X-ray imaging device for capturing an X-ray image on an imaging film, and a device for reading out the imaging film. The imaging film includes a data carrier, and the X-ray imaging device and/or the readout device includes a data device that has a write/read device for writing, on the data carrier, imaging parameters relating to the X-ray image capture and for reading information that is stored on the data carrier, the write/read device being configured to transmit the read information to the readout device such that the imaging parameters in force when capturing the X-ray image are available to the readout device for an imaging film readout. A method for providing information for a readout device is also provided.

A scintillator panel includes at least one light emitting layer and at least one non-light emitting layer laminated, wherein the light emitting layer contains phosphor particles, and when the thickness of the light emitting layer is represented by A, a relationship among a cumulative 50% particle diameter D.sub.50 of the phosphor particles based on volume average, a cumulative 90% particle diameter D.sub.90 of the phosphor particles based on volume average, and the thickness A satisfies,

D.sub.50<A and D.sub.90<2A.

A radiography imaging system for generating images of a pipe assembly includes a radiation source for emitting rays. The pipe assembly includes at least one of a pipe, tubing, and a weld. The radiation source includes a radioactive isotope having an activity level within a range between about 1 Curie and about 40 Curies. The radiation source is positioned adjacent a portion of the pipe assembly. A detector is positioned opposite the radiation source. The portion of the pipe assembly is positioned between the radiation source and the detector such that the rays interact with the portion of the pipe assembly and strike the detector. The detector includes an imaging plate that is activated by illumination with the rays with an exposure within a range between about 0.5 Curie-minute and about 5 Curie-minutes of radiation. The imaging plate has a thickness within a range between about 5 mm and about 15 mm. The detector further includes an imaging unit for generating images based on information from the imaging plate. The imaging unit has a pixel pitch that is within a range between about 25 microns and about 100 microns.