Abstract: Disclosed is an entropy generation apparatus, which includes a detector that detects particles emitted from the radiation source to generate a detection signal; a preamplifier that amplifies the detection signal to generate an amplified signal; a filter that filters the amplified signal to generate a filtered signal; and a comparator that generates a pulse based on a result of comparing the filtered signal with a threshold value.

Abstract: The exemplary embodiments of the present invention provide a quantum random number generation apparatus according to an exemplary embodiment of the present invention including: a space-division semiconductor detector including a plurality of cells, each individually absorbing a plurality of emission particles emitted from a radioactive isotope; and a signal processor that generates a random number based on an absorption event at which the plurality of emission particles are absorbed into the plurality of cells, and thus new type of random number conversion method that combines a spatial randomness and existing temporal randomness of the emission particle can be provided, there is no restriction generated due to the dead time, the random number generation rate can be remarkably increased, and it is possible to generate of a pure random number at high speed, which is required by a computer, a network processor, or an IoT device.

Abstract: A system for automatically washing and sterilizing a heat exchanger of a system air conditioner is proposed. The system for automatically washing and sterilizing a heat exchanger of a system air conditioner according to an embodiment includes: a washer body including an air compressor, a compressed air tank, a detergent liquid tank, a washing water tank, a washing water tank, a high-pressure pump, a hot air generator, a steam generator, and a hot air generator; a washing module that sprays washing water, etc., supplied from the ground during rotation thereof to a cooling fin by a spray nozzle, thus washing the cooling fin; a waste water collection vinyl cover that collects waste water dropping when the cooling fin is washed; and a controller configured to control the washing module that sprays washing water, etc., to the cooling fin.

Abstract: The exemplary embodiments of the present invention provide a quantum random number generation apparatus according to an exemplary embodiment of the present invention including: a space-division semiconductor detector including a plurality of cells, each individually absorbing a plurality of emission particles emitted from a radioactive isotope; and a signal processor that generates a random number based on an absorption event at which the plurality of emission particles are absorbed into the plurality of cells, and thus new type of random number conversion method that combines a spatial randomness and existing temporal randomness of the emission particle can be provided, there is no restriction generated due to the dead time, the random number generation rate can be remarkably increased, and it is possible to generate of a pure random number at high speed, which is required by a computer, a network processor, or an IoT device.

Abstract: Provided is a novel compound capable of being usefully used to diagnose and treat prostate cancer by labeling a radioisotope on a bombesin derivatives capable of selectively targeting a target material over-expressed in tumor cells in order to develop an effective diagnose and treatment method of diseases associated with prostate cancer.

Abstract: Provided is a novel compound capable of being usefully used to diagnose and treat prostate cancer by labeling a radioisotope on a bombesin derivatives capable of selectively targeting a target material over-expressed in tumor cells in order to develop an effective diagnose and treatment method of diseases associated with prostate cancer.

Abstract: Disclosed herein is a high current solid target for radioisotope production at a cyclotron using a metal foam, and more specifically, a high current solid target for isotope production, which attaches a metal foam to the rear surface of the solid target plate. A high current solid target for isotope production including a metal foam according to the present invention may exhibit excellent cooling performances to increase the amount of proton beam current irradiated on the solid target compared to conventional planar-type solid targets. Because the irradiation of the increased proton beam current may increase the amount of an isotope produced per unit time and even an irradiation of proton beam in a short time may allow for production of a desired amount of an isotope, the solid target may be usefully used for production of medical cyclotron nuclides.

Abstract: Disclosed herein is a high current solid target for radioisotope production at a cyclotron using a metal foam, and more specifically, a high current solid target for isotope production, which attaches a metal foam to the rear surface of the solid target plate. A high current solid target for isotope production including a metal foam according to the present invention may exhibit excellent cooling performances to increase the amount of proton beam current irradiated on the solid target compared to conventional planar-type solid targets. Because the irradiation of the increased proton beam current may increase the amount of an isotope produced per unit time and even an irradiation of proton beam in a short time may allow for production of a desired amount of an isotope, the solid target may be usefully used for production of medical cyclotron nuclides.

Abstract: Disclosed herein are a method of preparing a technetium-99m-labeled iron oxide (Fe2O3) nanoparticle and a diagnostic imaging or therapeutic agent for cancer diseases comprising the nanoparticle. The 99mTc-iron oxide nanoparticle is prepared using an acidic solution or a borohydride anion exchange resin as a reducing agent, and thus, is easy to inject into the body, and its biodistribution and excretion from the body is easily predicted. The 99mTc-iron oxide nanoparticle eliminates cancerous tissues as well as enabling non-invasive real-time imaging for obtaining anatomical information about cancerous tissues and tissue functions without the need for surgery. Also, the iron oxide nanoparticle may be useful as an imaging agent for various diseases including tumors, contagious diseases and genetic defects.

Abstract: A method for labelling a sulfide compound with technetium or rhenium, comprising the reaction of a disulfide compound with pertechnetate or perrhenate in the presence of borohydride exchange resin to obtain a complex of technetium or rhenium with the sulfide compound. The method can directly label disulfide compounds with technetium or rhenium, can skip the synthetic step of thiol-protected S-precursor, and is useful for high value-added radiopharmaceuticals.

Abstract: The present invention relates to a method of preparing technetium or rhenium complex for radiopharmaceuticals, through reaction of pertechnetate or perrhenate with a ligand in the presence of a reducing agent, wherein the reducing agent is a borohydride exchange resin (BER). The borohydride exchange resin of the present invention has advantages of being stable in a wide range of Ph, including acidic or alkaline condition(Ph 2˜14) and thus being applicable to biological materials as well as being easily removable through filtration when being administrated. Also since the radiolabelled complex is produced under conditions milder than those required for the conventional reducing agents as well as has high radiochemical purity and high labeling efficiency, the conventional reducing agents can be replaced by the BER of the present invention.

Abstract: The present invention relates to a method of preparing technetium or rhenium complex for radiopharmaceuticals, through reaction of pertechnetate or perrhenate with a ligand in the presence of a reducing agent, wherein the reducing agent is a borohydride exchange resin (BER) . The borohydride exchange resin of the present invention has advantages of being stable in a wide range of Ph, including acidic or alkaline condition(Ph 2˜14) and thus being applicable to biological materials as well as being easily removable through filtration when being administrated. Also since the radiolabelled complex is produced under conditions milder than those required for the conventional reducing agents as well as has high radiochemical purity and high labeling efficiency, the conventional reducing agents can be replaced by the BER of the present invention.

Abstract: The present invention relates to a method for labelling a sulfide compound with technetium or rhenium, comprising the reaction of a disulfide compound with pertechnetate or perrhenate in the presence of borohydride exchange resin to obtain a complex of technetium or rhenium with the sulfide compound. The method can directly label disulfide compounds with technetium or rhenium, can skip the synthetic step of thiol-protected S-precursor, and is useful for high value-added radiopharmaceuticals.