Abstract: A solar collector apparatus includes a parabolic mirror configured to direct solar energy through a double convex lens and towards a linear set of secondary mirrors, each of the secondary mirrors positioned to direct the solar energy towards a solar collection target. The subsequent diversion achieved by the solar collector apparatus allows collection of solar energy several times denser than natural sunlight, and can be captured using a substantially compact system.

Abstract: A solar collector apparatus includes a parabolic mirror configured to direct solar energy through a double convex lens and towards a linear set of secondary mirrors, each of the secondary mirrors positioned to direct the solar energy towards a solar collection target. The subsequent diversion achieved by the solar collector apparatus allows collection of solar energy several times denser than natural sunlight, and can be captured using a substantially compact system.

Abstract: A physiologically acceptable, radiolabelled compound of general formula (I) consisting of a compound of the ##STR1## where k is an integer from 2 to 5l is an integer from 1 to 5X and Y are independently selected from phenyl, naphthyl, pyridine or quinoline radical, each having at position 2 one of --OH, --SH, --NH.sub.2 or --COOH and each of X and Y can be optionally substituted by one or more amino, halogen, hydroxy, mercapto, nitro, cyano, thiocyano, alkyl, alkoxy, halogenoalkyl, acyl, acylamino, acyloxy, carboxyl, alkoxycarbonyl, carbamoyl, pyridoylamino, N-carboxyalkyl-carbamoyl, sulpho, sulphamoyl, mono- or dialkylated or phenylated sulphamoyl which can also carry one or more substituents R', alkylsulphonyl, alkoxysulphonyl, or by an optionally hydroxy-containing phenylsulphonyl or phenoxysulphonyl; where R' is as defined for X and Y; or pharmaceutically acceptable salts thereof.

Abstract: A physiologically acceptable, radiolabelled compound of general formula ##STR1## where k is an integer from 2 to 5l is an integer from 1 to 5X and Y are independently selected from phenyl or naphthyl radical each of which can be substituted by one or more amino, mono- or di- substituted amino, halogen, hydroxy, mercapto, nitro, cyano, thiocyano, alkyl, alkoxy, halogenoalkyl, acyl, acylamino, acyloxy, carboxyl, alkoxycarbonyl, carbamoyl, pyridoylamino, N-carboxyalkyl-carbamoyl, sulpho, sulphamoyl, mono- or dialkylated or phenylated sulphamoyl which can also carry one or more substituents R', alkylsulphonyl, alkoxysulphonyl, --(CH.sub.2).sub.p NHCOR", --COR" or by an optionally hydroxy-containing phenylsulphonyl or phenoxysulphonyl; or X and Y are independently selected from pyridine or quinoline radical each of which can be substituted by amine, halogen, hydroxy, alkyl, or carbamoyl; where R' is as defined for X and Y; R" is alkyl-L where L is halogen or other leaving group; 2,5-diketo-pyrrolinyl, --Het--CH.

Abstract: Rhenium complexes of formula (I), radiolabelled complexes thereof or pharmaceutically acceptable salts thereof: ##STR1## wherein R is straight or branched chain C.sub.1-10 alkyl, C.sub.1-10 alkenyl, C.sub.1-10 alkynyl optionally substituted by cycloalkyl or aryl; C.sub.1-10 cycloalkyl optionally substituted by straight or branched chain alkyl, alkenyl, alkynyl or aryl; or aryl optionally substituted by straight or branched chain alkyl, alkenyl, alkynyl or cycloalkyl for use in liver cancer therapy and metastasis of cancer.

Abstract: This invention relates to a method for synthesizing Iodine-124 and also a class of radiopharmaceutical which, by virtue of an Iodine-124 label, can be used for both diagnostic and therapeutic purposes. The method comprises an innovative technique for preparing an irradiation target, irradiating the prepared target, and finally collecting Iodine-124 created by the irradiation. The method of this invention provides Iodine-124 in sufficient yields and radionuclidic purity that can be used with positron emission tomography. The invention further relates to the use of Iodine-124 in a chemical form incorporated into organic and inorganic radiopharmaceuticals.

Abstract: Methods and kits for incorporating a radioactive astatine isotope (particularly .sup.211 At) into an organic compound by electrophilic astatodestannylation of organostannanes.

Abstract: A process for reliably and consistently producing astatine-211 in small controlled volumes of a solution, which is selected from a choice of solvents that are useful in selected radiopharmaceutical procedures in which the At-211 activities are to be applied.

Abstract: A method for simultaneously preparing Radon-211, Astatine-211, Xenon-125, Xenon-123, Iodine-125 and Iodine-123 in a process that includes irradiating a fertile metal material then using a one-step chemical procedure to collect a first mixture of about equal amounts of Radon-211 and Xenon-125, and a separate second mixture of about equal amounts of Iodine-123 and Astatine-211.

Abstract: There is described an apparatus and method for diagnosing ocular cancer that is both non-invasive and accurate which comprises two radiation detectors positioned before each of the patient's eyes which will measure the radiation level produced in each eye after the administration of a tumor-localizing radiopharmaceutical such as gallium-67.

Abstract: An apparatus and method for injecting a substance, such as a radiopharmaceutical, into the bloodstream of a subject. The apparatus comprises an injection means, such as a servo controlled syringe, a means for measuring the concentration of that substance in the subject's bloodstream, and means for controlling the injection in response to the measurement so that the concentration of the substance follows a predetermined function of time. The apparatus of the subject invention functions to inject a substance into a subject's bloodstream at a rate controlled by an error signal proportional to the difference between the concentration of the substance in the subject's bloodstream and the predetermined function.

Abstract: A method for the production of .sup.211 Rn comprising bombarding .sup.209 Bi with .sup.7 Li particles utilizing the nuclear reaction.sup.209 Bi(.sup.7 Li,5n).sup.211 Rn.The method provides a simple spectrum from which .sup.211 Rn can be easily isolated in a highly pure condition.

Abstract: A solution of potassium-38 suitable for use as a radiopharmaceutical and a method for its production. Argon is irradiated with protons having energies above the threshold for the .sup.40 Ar(p,3n).sup.38 K reaction. The resulting potassium-38 is dissolved in a sterile water and any contaminating chlorine-38 is removed.

Abstract: .sup.203 Pb-tris complex injected for use in the detection and localization of tumors. The lead-203 is produced from the deuteron bombardment of a thallium target and chemically separated from the thallium. The tris is added which complexes with the lead-203.

Abstract: The method of labeling indocyanine green (ICG) with carrier-free iodine-123 comprising the steps of condensing xenon-123 on crystals of ICG followed by permitting decay of the .sup.123 Xe a sufficient length of time to produce .sup.123 I-electronically excited ions and atoms which subsequently label ICG.

Abstract: A beam profile analyzer employing sector or quadrant plates each servo controlled to outline the edge of a beam.