Characterization Of An Active Analyser For Recoil Neutron Polarimetry At High Energy
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Keywords:
recoil neutron polarimetry, Super BigBite Spectrometer, photomultiplier tubesAbstract
The paper ascertained the characterizing and commissioning of an active analyser for recoil neutron polarimetry at higher energy. The active analyser is a component part of the hadron arm of the Super BigBite Spectrometer at the Jefferson Lab, United States. The active analyser consists of thirty-two detectors, an EJ200 scintillator, ET9124 photomultiplier tubes and associated read-out electronics. Initial characterizations of the response to cosmic muons as well as simulation with proton and neutron in obtaining the absolute gain, time response and their efficiencies. The absolute gain and time response obtained were 5.3x108 and 4.86ns, which were within operational parameters respectively; also there is variation in the signal amplitude, signal pulse and noise amplitude for each of the thirty-two detector. From the simulation results, the efficiencies of both cosmic muons and protons were around 0.8 and that of neutron were around 0.4. The variation in signal amplitude and noise level were due to interference from the background as well as loose in the optical grease between the detector and the PMT at resolution of 5ns which means that the detector can take a ray of 200mHz. Also, there are qualitative similarities between experimental and simulated results. Further study is warranted.
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References
Annand, J. R. "Recoil-Nucleon Polarimetry in hadron Physics." 2010.
Annand, J. R. Measurement of neutron electromagnetic by the double polarised H(e,e',n) reaction. 2015.
Annand J.R.M et al, "Measurement of the ratio neutron electromagnetic form factors by double polarized reaction. An experimental proposal to Jefferson Lab PAC 45," in Measurement of the ratio neutron electromagnetic form factors by double polarized reaction. An experimental proposal to Jefferson Lab PAC 45, 2017.
Annand, J.R.M. NINO Cards and BigBite Timing Hodoscope Update: SBS Winter Collaboration Meeting. 2018.
Buller, S. et al. Monte-Carlos Simulations of Nuclear Reactions at Relativistic Energies. 2013.
Cheol, H. et al, "Characteristics of plastic scintillators fabricated by a polymerization reaction," Nucl. Eng. Technol., vol. 49, pp. 592-597, 2017.
https://doi.org/10.1016/j.net.2016.10.001
Gautam, T, A novel neutron polarimeter for the E12-17-004 experiment. APS Division Nuclear Physics Hawaii Meeting 2019.
Hoecker, A. (2010), "Commissioning and early physics analysis with the ATLAS and CMS experiments," in Commissioning and early physics analysis with the ATLAS and CMS experiments.
Jalgen, A. (2017) "Initial characterizations of a pixelated Thermal-Neutron Detector." LUP student papers. Nuclear Physics, department of Physics, LUND University.
Lecoq, P. (2020) Scintillation Detectors for Charged Particles and Photons. In: Fabjan C., Schopper H. (eds). Springer, Cham.
https://doi.org/10.1007/978-3-030-35318-6_3
Maria, & G.W "Monte Carlo Simulation for particle detectors," in CERN Council Open Symposium on European strategy for particle physics, 2012.
Moralles, M. et al "Applications of the Monte Carlo method in nuclear physics using the GEANT4 toolkit," in AIP conference proceedings, 2009.
https://doi.org/10.1063/1.3157829
Perdrisat. C. et al, "Nucleon Electromagnetic Form Factors," 2008.
Sutton Christine, "The Standard Model," Cern Cour., 1994.
Tkaczyk, A., Saare, H., Ipbuker, C., Schulte, F., Mastinu, P., Paepen, J., Pedersen, B., Schillebeeckx, P., and Varasano, G., Characterization of EJ-200 plastic scintillators as active background shield for cosmogenic radiation, NUCLEAR INSTRUCMENTS and METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, ISSN 0168-9002, 882, 2018, p.96-104, JRC107887.
https://doi.org/10.1016/j.nima.2017.10.088
Wingham, M. "commissioning of the CMS tracker and preparing for early physics at the LHC," 2008, pp. 1-169.
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