Abstract: There is provided that a curable composition containing a polymerizable compound, a photopolymerization initiator, and solvent, wherein the polymerizable compound contains at least a compound having one of an aromatic structure, an aromatic heterocyclic structure, and an alicyclic structure, the curable composition has viscosity of not less than 2 mPa·s and not more than 60 mPa·s at 23° C., in a state in which the solvent is removed, the curable composition has a viscosity of not less than 30 mPa·s and not more than 10,000 mPa·s at 23° C., and a content of the solvent with respect to the whole curable composition is not less than 70 vol % and not more than 95 vol %.

Abstract: A radiation imaging apparatus comprises: a detecting unit configured to obtain measurement information that is based on the result of detection of radiation with which a subject has been irradiated; an obtaining unit configured to obtain an average energy of the radiation based on pieces of measurement information obtained through measurement of the radiation that has been performed a plurality of times; and a correction unit configured to correct the average energy based on a characteristic of the radiation with which the subject has been irradiated.

Abstract: Information of constituent substances of an object is reconstructed with high accuracy without being influenced by a decrease in measurement accuracy even if measurement in which a tube voltage is changed is not performed. A CT apparatus includes: a detection unit configured to obtain measurement information based on a detection result of radiation irradiated based on a constant tube voltage; an obtaining unit configured to obtain second measurement information of the radiation based on a moment of the measurement information obtained by detecting the radiation a plurality of times; a classification unit configured to classify an object into a plurality of substances; and a reconstruction unit configured to reconstruct the information of the constituent substances of the object based on the second information.

Abstract: An apparatus includes a reception unit configured to receive a photoacoustic wave generated when an object is irradiated with light and output a received signal, and a processing unit configured to obtain an initial acoustic pressure distribution in the object by using the received signal and obtain object information by using an equation representing propagation of the light which includes the initial acoustic pressure distribution and a correction term including a background absorption coefficient distribution of the object.

Abstract: A radiation imaging apparatus comprises: a detecting unit configured to obtain measurement information that is based on the result of detection of radiation with which a subject has been irradiated; an obtaining unit configured to obtain an average energy of the radiation based on pieces of measurement information obtained through measurement of the radiation that has been performed a plurality of times; and a correction unit configured to correct the average energy based on a characteristic of the radiation with which the subject has been irradiated.

Abstract: An apparatus includes a reception unit configured to receive a photoacoustic wave generated when an object is irradiated with light and output a received signal, and a processing unit configured to obtain an initial acoustic pressure distribution in the object by using the received signal and obtain object information by using an equation representing propagation of the light which includes the initial acoustic pressure distribution and a correction term including a background absorption coefficient distribution of the object.

Abstract: Employed is an information acquisition apparatus which acquires characteristic information about an object using a reception signal of acoustic waves generated by the object that is irradiated with light, the apparatus having: region acquisition unit for acquiring information indicating a plurality of regions of mutually different characteristics, in the object; sound velocity determination unit for determining sound velocity in the plurality of regions, using the information indicating the plurality of regions; and characteristic information acquisition unit for acquiring the characteristic information about the object, using the sound velocity and the reception signal.

Abstract: Provided is a radiation imaging apparatus including: an image acquisition unit configured to rotate a radiation generator and a radiation detector around a subject, to thereby acquire a plurality of radiographic images of the subject based on detected data on a radiation applied to the subject from a plurality of rotation angles; a first scattered radiation estimation unit configured to estimate a first scattered radiation distribution in a first radiographic image among the plurality of radiographic images; and a second scattered radiation estimation unit configured to use the first scattered radiation distribution to estimate a second scattered radiation distribution in a second radiographic image, which is different from the first radiographic image.

Abstract: A radiation imaging apparatus includes: a detection unit configured to obtain measurement information based on a detection result of radiation irradiated based on a constant tube voltage; an obtaining unit configured to obtain second measurement information of the radiation based on a moment of the measurement information obtained by detecting the radiation multiple times; an energy determination unit configured to determine a plurality of energies for approximating an energy distribution of the radiation; and a calculation unit configured to calculate photon counts corresponding to the plurality of energies based on the second measurement information.

Abstract: Information of constituent substances of an object is reconstructed with high accuracy without being influenced by a decrease in measurement accuracy even if measurement in which a tube voltage is changed is not performed. A CT apparatus includes: a detection unit configured to obtain measurement information based on a detection result of radiation irradiated based on a constant tube voltage; an obtaining unit configured to obtain second measurement information of the radiation based on a moment of the measurement information obtained by detecting the radiation a plurality of times; a classification unit configured to classify an object into a plurality of substances; and a reconstruction unit configured to reconstruct the information of the constituent substances of the object based on the second information.

Abstract: A photoacoustic apparatus includes a light irradiation unit configured to irradiate a subject with light, a reception unit configured to convert an acoustic wave generated from the subject into an electric signal, a processing unit configured to acquire image data using the electric signal, and a display control unit. The processing unit acquires first image data by a first image generation method using the electric signal, and acquires second image data by a second image generation method different from the first image generation method using the electric signal. The display control unit sets, as a difference region, a region in which difference image data between the first image data and the second image data has an image value within a predetermined numerical range, and causes image data in which the difference region and another region are distinguishable from each other to be displayed on a display unit.

Abstract: An apparatus includes a reception unit configured to receive a photoacoustic wave generated when an object is irradiated with light and output a received signal, and a processing unit configured to obtain an initial acoustic pressure distribution in the object by using the received signal and obtain object information by using an equation representing propagation of the light which includes the initial acoustic pressure distribution and a correction term including a background absorption coefficient distribution of the object.

Abstract: An object information acquiring apparatus comprises a light source; an acoustic detecting unit configured to detect an acoustic wave generated from an object to which light from the light source is irradiated; and a processing unit configured to acquire characteristic information on the inside of the object based on the acoustic wave and correct the characteristic information using an absorption coefficient of a background region inside the object.

Abstract: A carrier has an impedance Z having a frequency dependence, obtained by alternating current impedance measurement. When the frequency dependence is fitted by a fitting function, parameter ? lies in a range of 0.70 to 0.90 in an electric field of 103 V/cm.