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3 results on '"V. A. Kormilitsin"'

1. Design and performance of LED calibration system prototype for the lead tungstate crystal calorimeter

Author

K. E. Shestermanov, V. A. Kormilitsin, P. A. Semenov, Y.M. Goncharenko, Y.M. Melnick, V.A. Batarin, V.K. Semenov, Vassili Kachanov, Andrey Vasiliev, L. V. Nogach, J. N. Butler, L. F. Soloviev, V. N. Grishin, A. E. Yakutin, A. M. Davidenko, A. A. Derevschikov, V.I. Kravtsov, Andrey Uzunian, A. P. Meschanin, V. V. Mochalov, Y.A. Matulenko, Yuichi Kubota, A. S. Konstantinov, A. V. Ryazantsev, J. Yarba, V.Y. Khodyrev, D. A. Morozov, N. G. Minaev, Sheldon Stone, V. S. Lukanin, and N.E. Mikhalin

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Physics - Instrumentation and Detectors, Optical fiber, Calorimeter (particle physics), Physics::Instrumentation and Detectors, business.industry, FOS: Physical sciences, Physics::Optics, Instrumentation and Detectors (physics.ins-det), law.invention, Crystal, Optics, law, Calibration, Optoelectronics, Lead tungstate, business, Instrumentation, Diode, Light-emitting diode
Abstract

A highly stable monitoring system based on blue and red light emitting diodes coupled to a distribution network comprised of optical fibers has been developed for an electromagnetic calorimeter that uses lead tungstate crystals readout with photomultiplier tubes. We report of the system prototype design and on the results of laboratory tests. Stability better than 0.1% (r.m.s.) has been achieved during one week of prototype operation., 10 pages, 6 figures, LaTeX2e

Published
2006
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2. Study of possible scintillation mechanism damage in crystals after pion irradiation

Author

V.A. Batarin, N.E. Mikhalin, A.E. Yakutin, A.S. Konstantinov, V. A. Kormilitsin, V. S. Lukanin, A.V. Uzunian, A.V. Ryazantsev, Andrey Vasiliev, D.A. Morozov, L.V. Nogach, V.I. Kravtsov, K. E. Shestermanov, L.F. Soloviev, V. V. Mochalov, Yu. M. Goncharenko, V. N. Grishin, A. Davidenko, P. A. Semenov, T.Y. Chen, Vassili Kachanov, N.G. Minaev, Sheldon Stone, A.A. Derevschikov, J. N. Butler, J. Yarba, Y.M. Melnick, A.P. Meschanin, V. K. Semenov, Y.A. Matulenko, and Yuichi Kubota

Subjects
Physics, Nuclear and High Energy Physics, Scintillation, Physics::Instrumentation and Detectors, business.industry, Transmission loss, Molecular physics, Crystal, Optics, Pion, Narrow beam, Radiation damage, Lead tungstate, Irradiation, business, Instrumentation
Abstract

We employed two independent methods to study possible damage to the scintillation mechanism in lead tungstate crystals due to irradiation by a 34 V pion beam. Firstly 10 crystals were irradiated simultaneously over 30 h by a narrow beam, so that only a small region of each crystal was affected. We studied the effect of the irradiation on the light output non-uniformity. If a localized degradation was observed, it would indicate damage to the scintillation mechanism. Secondly, we detected light output using two phototubes attached to the sides of a crystal. Since these phototubes detect scintillation light only from a small localized region, the effect of transmission loss should be minimal. We did not see any statistically significant evidence for scintillation mechanism damage with either method. The effect is consistent with zero, and the upper limit is 0.5% at 95% C.L.

Published
2005
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3. LED monitoring system for the BTeV lead tungstate crystal calorimeter prototype

Author

K. E. Shestermanov, V. A. Medvedev, T.Y. Chen, Yu. M. Goncharenko, P. A. Semenov, A.S. Konstantinov, Vassili Kachanov, J. N. Butler, A.A. Derevschikov, Y.A. Matulenko, N.E. Mikhalin, D.A. Morozov, A.E. Yakutin, A.V. Uzunian, A.V. Ryazantsev, Yuichi Kubota, A. Davidenko, J. Yarba, N.G. Minaev, V. N. Grishin, V. V. Mochalov, Y.M. Melnick, Andrey Vasiliev, L.V. Nogach, V.I. Kravtsov, V.A. Batarin, V. A. Kormilitsin, L.F. Soloviev, V. K. Semenov, A.P. Meschanin, and Sheldon Stone

Subjects
Physics, Nuclear and High Energy Physics, Photomultiplier, Physics - Instrumentation and Detectors, Calorimeter (particle physics), Physics::Instrumentation and Detectors, business.industry, FOS: Physical sciences, Monitoring system, Instrumentation and Detectors (physics.ins-det), BTeV experiment, High Energy Physics - Experiment, law.invention, Crystal, High Energy Physics - Experiment (hep-ex), law, Physics::Accelerator Physics, Optoelectronics, High Energy Physics::Experiment, Lead tungstate, business, Instrumentation, Light-emitting diode
Abstract

We report on the performance of a monitoring system for a prototype calorimeter for the BTeV experiment that uses Lead Tungstate crystals coupled with photomultiplier tubes. The tests were carried out at the 70 GeV accelerator complex at Protvino, Russia., Comment: 12 pages, 8 figures, LaTeX2e, revised version

Published
2004
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