17 research outputs found
Scintillation neutron detector on the basis of boron-containing plastics
Main parameters are presented for plastic scintillators containing boron. These scintillators were obtained by the block
polymerization method of polystyrene with luminescent dopants and allyldodecaborane. Sample dimensions: diameter
25 mm, height 25 mm. Parameters studied included light output, sensitivity to neutrons and time characteristics.Π£ ΡΠΎΠ±ΠΎΡΡ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½Ρ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΠΈ ΠΏΠ»Π°ΡΡΠΌΠ°ΡΠΎΠ²ΠΈΡ
ΡΡΠΈΠ½ΡΠΈΠ»ΡΡΠΎΡΡΠ², ΡΠΊΡ ΠΌΡΡΡΡΡΡ Π±ΠΎΡ. Π¦Ρ ΡΡΠΈΠ½ΡΠΈΠ»ΡΡΠΎΡΠΈ ΠΎΠ΄Π΅ΡΠΆΠ°Π½Ρ Π·Π°
Π΄ΠΎΠΏΠΎΠΌΠΎΠ³ΠΎΡ ΠΌΠ΅ΡΠΎΠ΄Ρ Π±Π»ΠΎΡΠ½ΠΎΡ ΠΏΠΎΠ»ΡΠΌΠ΅ΡΠΈΠ·Π°ΡΡΡ ΠΏΠΎΠ»ΡΡΡΠΈΡΠΎΠ»Ρ Π· Π΄ΠΎΠΌΡΡΠΊΠ°ΠΌΠΈ, ΡΠΎ Π²ΠΈΠΏΡΠΎΠΌΡΠ½ΡΡΡΡ Π»ΡΠΌΡΠ½Π΅ΡΡΠ΅Π½ΡΡΡ ΡΠ° Π°Π»ΠΈΠ»Π΄ΠΎΠ΄Π΅ΠΊΠ°Π±ΠΎΡΠ°Π½ΠΎΠΌ. Π ΠΎΠ·ΠΌΡΡΠΈ Π·ΡΠ°Π·ΠΊΡΠ²: Γ25Ρ
25 ΠΌΠΌ. ΠΠΎΡΠ»ΡΠ΄ΠΆΠ΅Π½Ρ ΡΠ²ΡΡΠ»ΠΎΠ²ΠΈΠΉ Π²ΠΈΡ
ΡΠ΄, ΡΡΡΠ»ΠΈΠ²ΡΡΡΡ Π΄ΠΎ Π½Π΅ΠΉΡΡΠΎΠ½ΡΠ² ΡΠ° ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΈ Π²ΠΈΡΠ²ΡΡΡΠ²Π°Π½Π½Ρ.Π ΡΠ°Π±ΠΎΡΠ΅ ΠΏΡΠ΅Π΄ΡΡΠ°Π²Π»Π΅Π½Ρ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΠΏΠ°ΡΠ°ΠΌΠ΅ΡΡΡ ΠΏΠ»Π°ΡΡΠΌΠ°ΡΡΠΎΠ²ΡΡ
ΡΡΠΈΠ½ΡΠΈΠ»Π»ΡΡΠΎΡΠΎΠ², ΡΠΎΠ΄Π΅ΡΠΆΠ°ΡΠΈΡ
Π±ΠΎΡ. ΠΡΠΈ ΡΡΠΈΠ½ΡΠΈΠ»Π»ΡΡΠΎΡΡ
ΠΏΠΎΠ»ΡΡΠ΅Π½Ρ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π±Π»ΠΎΡΠ½ΠΎΠΉ ΠΏΠΎΠ»ΠΈΠΌΠ΅ΡΠΈΠ·Π°ΡΠΈΠΈ ΠΏΠΎΠ»ΠΈΡΡΠΈΡΠΎΠ»Π° Ρ Π»ΡΠΌΠΈΠ½Π΅ΡΡΠΈΡΡΡΡΠΈΠΌΠΈ Π΄ΠΎΠ±Π°Π²ΠΊΠ°ΠΌΠΈ ΠΈ Π°Π»Π»ΠΈΠ»Π΄ΠΎΠ΄Π΅ΠΊΠ°Π±ΠΎΡΠ°Π½ΠΎΠΌ. Π Π°Π·ΠΌΠ΅ΡΡ ΠΎΠ±ΡΠ°Π·ΡΠΎΠ²: Π΄ΠΈΠ°ΠΌΠ΅ΡΡ 25 ΠΌΠΌ ΠΈ Π²ΡΡΠΎΡΠ° 25 ΠΌΠΌ. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΡΠ²Π΅ΡΠΎΠ²ΠΎΠΉ Π²ΡΡ
ΠΎΠ΄, ΡΡΠ²ΡΡΠ²ΠΈΡΠ΅Π»ΡΠ½ΠΎΡΡΡ ΠΊ Π½Π΅ΠΉΡΡΠΎΠ½Π°ΠΌ ΠΈ Π²ΡΠ΅ΠΌΠ΅Π½-
Π½ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ
ChemInform Abstract: SPECTRAL-LUMINESCENT PROPERTIES AND BASICITY OF 2-(4-PYRIDYL)-5-(4-R-PHENYL)OXAZOLES
Synthesis, structure, and spectral fluorescence properties of 1,4-di(5-phenyl-2-oxazolyl)benzene heteroanalogs
Novel organic luminophors belonging to the oxazole and oxadiazole classes of compounds have been synthesized, namely, thiophene and furan analogs of 1,4-di(5-phenyl-2-oxazolyl)benzene. The optical properties of these compunds have been studied both theoretically and experimentally. Their IR spectra have been measured and their UV absorption, fluorescence, and excitation spectra have been analyzed. Details of their electronic structure and their principal spectral fluorescence parameters have been calculated using the PPP method. Possible methods or pathways for improving the spectral fluorescence parameters of organic luminophors in these classes of compounds in the visible region of the spectrum have also been analyzed. Β© 1990 Plenum Publishing Corporation
SYNTHESIS, STRUCTURE AND SPECTRAL FLUORESCENCE PROPERTIES OF 1,4-DI(5-PHENYLOXAZOLYL-2)-BENZENE HETEROANALOGS
Synthesis, structure, and spectral fluorescence properties of 1,4-di(5-phenyl-2-oxazolyl)benzene heteroanalogs
Novel organic luminophors belonging to the oxazole and oxadiazole classes of compounds have been synthesized, namely, thiophene and furan analogs of 1,4-di(5-phenyl-2-oxazolyl)benzene. The optical properties of these compunds have been studied both theoretically and experimentally. Their IR spectra have been measured and their UV absorption, fluorescence, and excitation spectra have been analyzed. Details of their electronic structure and their principal spectral fluorescence parameters have been calculated using the PPP method. Possible methods or pathways for improving the spectral fluorescence parameters of organic luminophors in these classes of compounds in the visible region of the spectrum have also been analyzed. Β© 1990 Plenum Publishing Corporation