Hadron calorimeter module prototype for baryonic matter studies at Nuclotron

Gavrishchuk, O.; Ladygin, V. P.; Petukhov, Y.; Sychkov, S. Ya.

doi:10.1134/s1547477115020119

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…Different observables in relativistic heavy-ion collisions studies are measured as a function of the collision centrality. To measure the centrality in already completed BM@N experimental the Zero Degree Calorimeter (ZDC) [5] was used. This hadron calorimeter was placed at the end of the BM@N beam line at a distance of 9 m from the target (see figure 1) and measured the energy deposition of spectator fragments in collisions of light and medium nucleus.…”

Section: The Bm@n Layoutmentioning

confidence: 99%

New forward hadron calorimeter and hodoscope for the BM@N heavy ions experiment

et al. 2020

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New forward hadron calorimeter with transverse and longitudinal segmentation has been developed and constructed for the upgraded fixed target BM@N experiment at JINR, Dubna. The main purpose of this calorimeter is to provide event-by-event centrality and reaction plane orientation measurements in nucleus-nucleus collisions. The design of the hadron calorimeter composed of sampling lead/scintillator modules with a beam hole in the center is discussed. The light collection from longitudinal sections in modules is provided by Wave Length Shifting (WLS) fibers embedded in scintillator plates. Micro-pixel photodetectors (Hamamatsu MPPCs) are used for light detection from each longitudinal section of modules. The measured light yield is about 50 photoelectrons per section for MIPs. Sampling ADCs are used for signal readout in the calorimeter. The performance of the FHCAL is discussed. For centrality measurement additional forward quartz hodoscope is developed to measure charge of fragments in the FHCAL beam hole. The method of collision centrality determination is discussed.

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Section: The Bm@n Layoutmentioning

confidence: 99%

New forward hadron calorimeter and hodoscope for the BM@N heavy ions experiment

et al. 2020

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“…The hadron calorimeter has been installed downstream. In 2016-2018, the modular Zero Degree Calorimeter (ZDC) [3] was used. The future experimental program planned at BM@N requires a hadron calorimeter upgrade.…”

Section: 1mentioning

confidence: 99%

Methods of signal processing and cosmic muon calibration for the BM@N sampling lead/scintillator hadron calorimeter

et al. 2020

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A: Recently developed new forward lead/scintillator sampling hadron calorimeters with transverse and longitudinal segmentation will be used in the upgraded BM@N (Baryonic Matter at Nuclotron) experiment at the Nuclotron-NICA acceleration complex in JINR (Dubna). These calorimeters are very important for measurements of centrality and the reaction plane orientation in heavy-ion collisions. Digitizing the analog signals in a wide dynamic range with sampling ADC leads to the fluctuations of the measured charge. The procedure of signal processing based on the Prony least squares fit method has been developed to improve the response requiring minimum machine time. In addition, fitting the signals with a known function allows one to select effectively weak signals at the level of electronics noise, that is important for performing a calibration of calorimeter sections with cosmic muons for the BM@N experiment. The same procedure will be used for hadron calorimeter in CBM experiment at FAIR. New methods of signal processing and cosmic muon tracking for forward hadron calorimeters will be presented.

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“…The Zero Degree Calorimeter (ZDC) [3] is designed to measure the energy of forward going particles which is necessary for the analysis of the collision centrality. The photo of the ZDC is shown in figure 2 (right).…”

Section: Measurement Of Collision Centrality With Hadron Calorimeters...mentioning

confidence: 99%

Methods for centrality determination in nucleus-nucleus collisions with forward hadron calorimeters at the BM@N experiment

Morozov¹,

Golubeva²,

Guber³

et al. 2020

J. Inst.

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The BM@N (Baryonic Matter at Nuclotron) is the fixed target experiment at the Nuclotron (JINR, Dubna, Russia) accelerator complex. The main goal of the BM@N experiment is studying properties of dense nuclear matter produced in the ion-ion collisions at beam energies up to 4.5 AGeV. First experiments were done for carbon, argon and krypton ions beams with C, Al, Cu and Pb targets. The methods of central events selection on event-by-event base with ZDC (Zero Degree Calorimeter) for these reactions are presented. The new Forward Hadron Calorimeter (FHCal) with transverse and longitudinal segmentation will be used to measure the collision centrality in heavy ion experiments after the BM@N upgrade. The FHCal has the beam hole in the center due to expected high beam intensities. New forward quartz hodoscope is been developed to be placed in the beam hole to measure the charge of fragments. New methods of centrality determination with the FHCal and forward quartz hodoscope are discussed.

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Hadron calorimeter module prototype for baryonic matter studies at Nuclotron

Cited by 4 publications

References 10 publications

New forward hadron calorimeter and hodoscope for the BM@N heavy ions experiment

New forward hadron calorimeter and hodoscope for the BM@N heavy ions experiment

Methods of signal processing and cosmic muon calibration for the BM@N sampling lead/scintillator hadron calorimeter

Methods for centrality determination in nucleus-nucleus collisions with forward hadron calorimeters at the BM@N experiment

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