Keyword: collider
Paper Title Other Keywords Page
MOA13 Measurement of Phase Space Density Evolution in MICE ion, emittance, simulation, solenoid 6
 
  • F. Drielsma
    DPNC, Genève, Switzerland
  • D. M. Maletic
    Belgrade Institute of Physics, Belgrade, Serbia
 
  Funding: STFC, DOE, NSF, INFN, CHIPP etc
The Muon Ionization Cooling Experiment (MICE) collaboration will demonstrate the feasibility of ionization cooling, the technique proposed for a future muon storage ring or collider. The muon beam parameters are measured particle-by-particle, before and after a cooling cell, using high precision scintillating-fibre trackers in a solenoidal field. The position and momentum reconstruction of individual muons in MICE allows for the development of several alternative figures of merit in addition to beam emittance. Contraction of the phase-space volume occupied by the sample, or equivalently the increase in phase-space density at its core, is an unequivocal cooling signature. Single-particle amplitude, defined as a weighted distance to the sample centroid, can be used to probe the change in the density in the core of the beam. Alternatively, non-parametric statistics provides reliable methods to estimate the entire phase-space density distribution and reconstruct probability contours. The aforementioned techniques are robust to transmission losses and sample non-linearities, making them ideal candidates to perform a cooling measurement in MICE. Preliminary results are presented here.
Submitted by the MICE speakers bureau. If accepted, a member of the collaboration will be selected to present the contribution
 
slides icon Slides MOA13 [1.926 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2017-MOA13  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
TUM21 High Voltage Cooler NICA Status and Ideas ion, electron, high-voltage, gun 25
 
  • V.B. Reva, M.I. Bryzgunov, A.V. Bubley, A.D. Goncharov, N.S. Kremnev, V.M. Panasyuk, V.V. Parkhomchuk, V.A. Polukhin, A.A. Putmakov
    BINP SB RAS, Novosibirsk, Russia
 
  The new accelerator complex NICA is designed at the Joint Institute for Nuclear Research (JINR, Dubna, Russia) to do experiment with ion-ion and ion-proton collision in the range energy 1-4.5 GeV/u. The planned luminosity in these experiments is 1027cm-2c{-1}. This value can be obtained with help of very short bunches with small transverse size. This beam quality can be realized with electron and stochastic cooling at energy of the physics experiment. The subject of the report is the problem of the technical feasibility of fast electron cooling for collider in the energy range between 0.2 and 2.5 MeV. For the realization of the cooler device BINP team proposes the design that is like to COSY cooler. The main features of this design are the accelerating tube immersed in the magnetic field along the whole length and the strong magnetic field in the cooling section. The physics of electron cooling is based on the idea of the fast magnetized cooling when the ion interacts with Larmour circle and the cooling decrements are improved significantly. The cooling force at strong magnet field was measured at many experiments and can be surely estimated.  
slides icon Slides TUM21 [50.456 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2017-TUM21  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)  
 
THM21 NICA Project: Three Stages and Three Coolers ion, booster, experiment, detector 84
 
  • I.N. Meshkov, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
 
  The Nuclotron-based Ion Collider fAcility (NICA) project is under development at JINR. The first and general goal of the project is experimental study of both hot and dense baryonic matter to search for so-called Mixed Phase formation in collisions of heavy relativistic ions. The second goal is spin physics (in collisions of polarized protons and deuterons). The project NICA is developed in three stages. 1st stage, "The Baryonic Matter at Nuclotron", is a fixed target experiment with ions accelerated in the linac and two SC synchrotrons - the Booster and the Nuclotron up to kinetic energy of 4.5 GeV/u (the Centre mass system energy ECMS up to 3.45 GeV/u). The Booster has an electron cooler of the electron energy up to 50 keV. The 2nd stage extends the ECMS from 4 to 11 GeV/u in colliding beams' mode. The Collider will be equipped with both stochastic cooling system and double electron one of electron energy of 0.5 - 2.5 MeV, which are being designed and manufactured at the Budker INP. Stage III - Polarized Beams Mode of The Collider is at the level of the conceptual design. We emphasize on beam dynamics in the NICA machines and a necessity of the cooling methods application.  
slides icon Slides THM21 [8.370 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-COOL2017-THM21  
Export • reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml)