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Recent advances and perspectives of the high precision laser metrology
/ Batusov, V (Dubna, JINR) ; Budagov, J (Dubna, JINR) ; Glagolev, V (Dubna, JINR) ; Lyablin, M (Dubna, JINR) ; Shirkov, G (Dubna, JINR) ; Gayde, J Ch (CERN) ; Di Girolamo, B (CERN) ; Mainaud Durand, H (CERN) ; Mergelkuhl, D (CERN) ; Nessi, M (CERN) et al.
The laser-based metrology presents new means and opens possibilities in solving
tasks where achievement of a high precision survey is of the principal signiˇcance
necessity.
The extended laser ˇducial line (coordinate axis) is necessary for precision
alignment of basic structure units of large-scale accelerators, for precision assembly
of subdetectors when mounting large spectrometric complexes, for online control of
space stability of particle detectors during the data taking period.
The high sensitivity laser inclinometers open the new possibilities for ground
motion control and for accelerator (collider) beam space stabilization essential for
achievement of stable high intensity (luminosity) at the interaction area.
The investigation has been performed at the Dzhelepov Laboratory of Nuclear
Problems, JINR..
E13-2014-21.
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2014. - 17 p.
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Minimization of the Long Term Noises of the 24-Bit ADC for the Precision Laser Inclinometer
/ Azaryan, N (Dubna, JINR) ; Budagov, J (Dubna, JINR) ; Vernikovskya, V (Dubna, JINR ; Gomel State Tech. U.) ; Lyablin, M (Dubna, JINR) ; Pluzhnikov, A (Dubna, JINR) ; Smykovsky, O (Dubna, JINR ; Gomel State Tech. U.) ; Di Girolamo, B (CERN) ; Gayde, J Ch (CERN) ; Mergelkuhl, D (CERN)
The daylong noises of the 24 bits ADC DT9824 and DT9828 in the laboratory room conditions and in the thermo-stabilized and radio isolated laboratory and the noises dependence on the single measurement duration have been researched. Significantly, by factor 240× the ADC resolution in the temperature stabilized and radio isolated conditions was improved. [...]
2021 - 13 p.
- Published in : Phys. Part. Nucl. Lett. 18 (2021) 773-785
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Professional Precision Laser Inclinometer: the Noises Origin and Signal Processing
/ Azaryan, N (Dubna, JINR) ; Budagov, J (Dubna, JINR) ; Glagolev, V (Dubna, JINR) ; Lyablin, M (Dubna, JINR) ; Pluzhnikov, A (Dubna, JINR) ; Seletsky, A (Dubna, JINR) ; Trubnikova, G (Dubna, JINR) ; Di Girolamo, B (CERN) ; Gayde, J C (CERN) ; Mergelkuhlb, D (CERN)
In the Professional Precision Laser Inclinometer the noise origins were analyzed. The new efficient methodic of these noises taking into account was proposed and realized. [...]
2019 - 13 p.
- Published in : Phys. Part. Nucl. Lett. 16 (2019) 264-276
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Position-Sensitive Photoreceivers: Sensitivity and Detectable Range of Displacements of a Focused Single-Mode Laser Beam
/ Azaryan, N S (Dubna, JINR) ; Budagov, J A (Dubna, JINR) ; Lyablin, M V (Dubna, JINR) ; Pluzhnikov, A A (Dubna, JINR) ; Di Girolamo, B (CERN) ; Gayde, J Ch (CERN) ; Mergelkuhl, D (CERN)
Analysis is given to advantages and drawbacks of methods for measuring laser beam center coordinates and determining a range and amount of linear beam displacements using a quadrant photoreceiver, CCD matrix, and dividing plates. It is shown that the quadrant photoreceiver method and the dividing plate method are most sensitive to displacements of a single-mode laser beam. [...]
2019 - 23 p.
- Published in : Phys. Part. Nucl. Lett. 16 (2019) 354-376
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The Cesium Source Calibration and Monitoring System of the ATLAS Tile Calorimeter: Design, Construction and Results
/ Blanchot, G. (Barcelona, IFAE) ; Bosman, M. (Barcelona, IFAE) ; Budagov, J. (Dubna, JINR) ; Cavalli-Sforza, M. (Barcelona, IFAE) ; Efthymiopoulos, I. (CERN) ; Isaev, A. (Serpukhov, IHEP) ; Ivanyushenkov, Y. (Barcelona, IFAE) ; Karyukhin, A. (Serpukhov, IHEP) ; Kopikov, S. (Serpukhov, IHEP) ; Nessi, M. (CERN) et al.
This article describes the design, construction and use of a calibration and monitoring system, based on movable 137Cs gamma-ray sources, for the ATLAS Tile Calorimeter (TileCal). The sources, propelled by a water-based liquid through tubes that traverse all the calorimeter's cells, produce signals that precisely characterise the response of each tile, thereby providing very granular and accurate data on the response of TileCal to particles. [...]
arXiv:2002.12800.-
2020-03-20 - 46 p.
- Published in : JINST 15 (2020) P03017
Fulltext: PDF; Fulltext from publisher: PDF;
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