Алгоритм построения оптимальных пар фильтров кодирования и восстановления, адаптивных к функции многих переменных

Розглянуто алгоритм побудови оптимальних пар фільтрів будь-якої складності кодування і відновлення, адаптивних до функції багатьох змінних, для довільного регулярного паркету.An algorithm for development of optimal pairs of filters of any complexity for (coding and recovery which are) adaptive to multivariable function is proposed.Рассмотрен алгоритм построения оптимальных пар фильтров произвольной сложности кодирования и восстановления, адаптивных к функции многих переменных, для любого регулярного паркета

Progress in PbWO4_{4} scintillating crystal

The latest results in improvement of scintillator properties with Nb doping of PbWO4 crystal are presented. The effects on the basic parameters of the crystal, such as radiation hardness, decay time and light yield, are evaluated.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

Алгоритм побудови оптимальних пар фільтрів кодування і відновлення, адаптивних до функції багатьох змінних

An algorithm for development of optimal pairs of filters of any complexity for (coding and recovery which are) adaptive to multivariable function is proposed.Рассмотрен алгоритм построения оптимальных пар фильтров произвольной сложности кодирования и восстановления, адаптивных к функции многих переменных, для любого регулярного паркета.Розглянуто алгоритм побудови оптимальних пар фільтрів будь-якої складності кодування і відновлення, адаптивних до функції багатьох змінних, для довільного регулярного паркету

Cutting of Five PbWO4 Crystals in Industrial Prototype Conditions

Five full size PbWO4 crystals were cut at the Bogoroditsk crystal production plant in Russia, using the processing method proposed by CERN - CMA for the mass production of the 110'000 crystals of the CMS Electromagnetic Calorimeter. The machinery, tooling and processing parameters were tested. The resulting crystal surface finish and dimensional accuracy are presented. Improvements in the method are envisaged

Improved light yield of lead tungstate scintillators

The application at medium and low energies of lead tungstate scintillators, so far optimized for the ECAL calorimeter of CMS for the future LHC, is strongly limited by their poor light yield. Suitable dopants like molybdenum and terbium can help to overcome this problem. Concepts, results, advantages and drawbacks of this approach are discussed. (11 refs)

Radiation hardness of mass produced PWO crystals

The studies of the distribution of the induced absorption in the spectral region of scintillations for mass produced PWO crystals and kinetics recovery have been made at the Bogoroditsk Techno-Chemical Plant (BTCP) using a specially developed rapid analysis method and at CERN by tests at various facilities easy to compare with electrons beam damages easy to access in a close vicinity. A probability for crystals with poor radiation hardness to be installed into calorimeter and a probability for crystals with good radiation hardness to be rejected during certification are estimated. It is shown that instead of measurements of the loss of light yield transmitted through PWO crystals under the electron beam irradiation, it is possible to use a sampling based measurements method of radiation induced absorption of crystals, i.e. to control the PWO crystals distribution by their radiation hardness. 8 Refs