Abstract: The disclosure relates to a scintillator and a radiation detector including the scintillator. The scintillator includes a scintillator material. In an embodiment, the scintillator material can include a metal halide doped with Eu2+ and co-doped with Sm2+. The metal halide can include at least one halogen selected from Br, Cl, and I. In an embodiment, the metal halide can include at least one element selected from alkaline-earth metals, rare-earth elements, Al, Ga, and the alkali metals selected from Li, Na, Rb, Cs. In a particular embodiment, co-doping with Sm2+ can shift the scintillation light emission peak to a region of the emission spectrum having a low self-absorbance of the scintillator material.

Abstract: The disclosure relates to a scintillator material for a radiation detector. In an embodiment, the scintillator material can include a crystalline alkaline-earth metal halide comprising at least one alkaline-earth metal selected from Mg, Ca, Sr, Ba, said alkaline-earth metal halide being doped with at least one dopant that activates the scintillation thereof other than Sm2+, and co-doped with Sm2+, said alkaline-earth metal halide comprising at least one halogen selected from Br, Cl, I.

Abstract: A scintillating material Cs(2-z)RbzLiLn(1-x)X6:xCe3+, where X is either Br or I, Ln is Y or Gd or Lu or Sc or La, where z is greater or equal to 0 and less or equal to 2, and x is above 0.0005 useful for detecting neutrons in a sample of radiation.

Abstract: A scintillator material has a formula La(1-x)CexBr3(1-y)I3y in which x represents a real number greater than or equal to 0.0005 and less than 1, y represents a real number greater than 0.20 and equal to or less than 0.9. This material has scintillation properties and emission properties and is useful in a scintillation-based detector for detecting radiation over a wide energy range.

Abstract: The invention concerns a material comprising a compound of formula Pr(1-x-y)LnyCexX3 wherein—Ln is chosen from the elements or mixtures of at least two elements, of the group: La, Nd, Pm, Sm, Eu, Gd, Y, —X is chosen from the halides or mixtures of at least two halides, of the group: Cl, Br, I, —x is above 0.0005 and is lower than 1, —y is from 0 to less than 1 and—x+y) is less than 1, and its use as scintillation detector, for example in PET scanner with time of flight capabilities.

Abstract: A scintillating material Cs(2-z)RbzLiLn(1-x)X6:xCe3+, where X is either Br or I, Ln is Y or Gd or Lu or Sc or La, where z is greater or equal to 0 and less or equal to 2, and x is above 0.0005 useful for detecting neutrons in a sample of radiation.

Abstract: A scintillating material of the generic formula Cs(2?z)RbzLiLn(1?x)X6:xCe3+, where X is either Br or I, Ln is Y or Gd or Lu or Sc or La, where z is greater or equal to 0 and less or equal to 2, and x is above 0.0005 useful for detecting neutrons in a sample of radiation.

Abstract: The invention concerns a material comprising a compound of formula Pr(1-x-y)LnyCexX3 wherein—Ln is chosen from the elements or mixtures of at least two elements, of the group: La, Nd, Pm, Sm, Eu, Gd, Y, —X is chosen from the halides or mixtures of at least two halides, of the group: Cl, Br, I, —x is above 0.0005 and is lower than 1, —y is from 0 to less than 1 and—x+y) is less than 1, and its use as scintillation detector, for example in PET scanner with time of flight apabilities.

Abstract: The invention pertains to a neutron detector comprising a scintillating material of the generic formula Cs(2?z)RbzLiLn(1?x)X6:xCe3+, where X is either Br or I, Ln is Y or Gd or Lu or Sc or La, where z is greater or equal to 0 and less or equal to 2, and x is above 0.0005, generally under the form of monocristal. The scintillating material has a remarkably low decay time.

Abstract: This invention has as its object a process for generating the idiosyncratic catalytic imprint of a sample, characterized in that it comprises the following stages: the sample that is likely to have the catalytic activity is brought into contact with a group of substrates; the signals that are generated after said contact are captured in some way. Advantageously, after the signals are captured, a processing of the latter that consists of assigning to each signal a digital value constituting a component of a graphic display, for example a color display, of the idiosyncratic imprint is carried out.

Abstract: This invention has as its object a method for detecting catalytic activity of a sample, characterized in that it comprises: the incubation of a substrate (S) with the sample that may have the catalytic activity that it is desired to detect, the addition of a reagent (X) that can react either with a chemical group of unconsumed substrate (S) or with a chemical group of product (P) that is formed after an incubation period with the sample, the addition of a developer (R) that can react with reagent (X), and the detection of the transformation of developer (R).

Abstract: This invention has as its object a method for releasing a product by subjecting a compound of Formula (II?): R?7R?8(HX)C1-C2(YH)R?9R?10 to a chemical oxidation that cleaves the bond C1-C2 to obtain the product. In the compound of Formula (II?): R?7 to R?10, which are identical or different, correspond to a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted functional group; X and Y, which are identical or different, are an oxygen atom, a sulfur atom, or an amine of Formula —NR11R12, wherein R11 is a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, and R12 is not a hydrogen atom. The invention also has as its object a method for releasing a product that comprises, before the chemical oxidation stage, a first step for preparing the compound of Formula (II?). The released product can be a volatile molecule or an active substance or else a specific product.

Abstract: The invention relates to an inorganic rare-earth iodide scintillation material of formula AXLn(y?y?,)Ln?y?I(x+3y) in which: A represents at least one element selected among Li, Na, K, Rb, Cs; Ln represents at least one first rare-earth element selected among La, Gd, Y, Lu, said first rare-earth element having a valency of 3+ in the aforementioned formula: Ln? represents at least one second rare-earth element selected among Ce, Tb, Pr, said second rare-earth element having a valency of 3+ in the aforementioned formula, x is an integer and represents 0, 1, 2 or 3; y is an integer or non-integer greater than 0 and less than 3, and; y? is an integer or non-integer greater than 0 and less than y. This material presents a high stopping power, a rapid decay time, in particular, less than 100 ns, a good energy resolution (in particular, less than 6% at 662 keV) and a high luminous level.

Abstract: A nucleotide sequence encoding a katG/lacZ fusion protein is useful for assaying the enzymatic activity of the katG gene product. A process of selecting a compound that is toxic against an isoniazid-resistant mycobaterial strain comprises incubating a catalase peroxidase enzyme with an isoniazid to produce a compound that restores isoniazid susceptability to the isoniazid-resistant mycobaterial strain.