Cherenkov radiation and Cherenkov detectors in the Cherenkov laboratory A.S.Belousov Lebedev Physical Instirute Russian Academy of sciences Report on the.

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Presentation transcript:

Cherenkov radiation and Cherenkov detectors in the Cherenkov laboratory A.S.Belousov Lebedev Physical Instirute Russian Academy of sciences Report on the conference Moscow

1.Introduction 2. Water Cherenkov counters in the experiment on investigation of A-dependence of neutral pions photoproduction on the complex nuclei. 3. Total absorption Cherenkov counters (TACC) on the basis of led glas and heavy crystals. 4. TACC in the experiments on the extraction of the electron beam at Serpukhov accelerator. 5.TACC in the experiment on measuring of total photoabsorption cross section on the hydrogen and deuterium. 6. TACC in the tagging system with discrimination of the muon background. 7. TACC in the experiments on the synchrotron PAKHRA. 8. TACC in the experiments on the beam of high energy neutrons with spectrometer BIS Luminosity monitor of the detector H1 at the accelerator HERA. 10. Conclusion.

Experiment on the investigation of A – dependence of low energy neutral pions photoproduction

A – dependence of neutral pions yield for two values of maximum energy of the gamma beam

Total absorption Cherenkov counter (TACC) with led glass radiator

Energy dependence of the resolution of TACC with the led glass radiators

Constructions of TACC with radiators from heavy crystals and the energy dependence of the energy resolution

Composite TACC

Pulse height distributions from composite TACC

Energy resolution of composite TACC and its components

TACC in experiment on measurement the total cross section at the energies 20 – 40 GeV

Total cross section of photoproduction of the hadrons from hydrogen

Total cross section for hadron photoproduction from deuterium

Tagging system with discrimination of the muon background

TACC in experiments with detector GAMMA

Cross section of neutral pions photoproduction from nuclei

TACC in the experiments with spectrometer BIS-2

The element of TACC detector in spectrometer BIS-2

The results of the online calibration TACC in the BIS-2 spectrometer

The spectrum of effective mass, showing charmed barion

Bis-2 spectrum, showing the Nφ resonance

Luminosity monitor on the H1 detector on the accelerator HERA

Pulse height spectra from the detectors of the luminosity monitor

Total cross section of the hadronic photoabsorption on the proton

Conclusion The works, which have been made in the Cherenkov laboratory: 1. “On the possibility of separation the relativistic particles in the scintillation counters” B.B. Govorkov Preprint LPI A-240, “A trap for cherenkov light from a wide beam of relativistic particles” N.Z.Gogitidze, V.A.Tsarev and V.A.Chechin NIM A248 (1986)186 3.”Radiation hardness of heavy monocrystals KRS-15, NBW, PWO” P.S.Baranov, A.S.Belousov et al Preprint LPI 53, 1999

P.A.Cherenkov and P.A.Zaitsev