MusrSim and MusrSimAna - Simulation Tools for μSR Instruments

Sedlák, Kamil; Scheuermann, R.; Shiroka, T.; Stoykov, A.; Raselli, A.; Amato, A.

doi:10.1016/j.phpro.2012.04.040

Cited by 28 publications

(23 citation statements)

References 10 publications

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“…The efficiency of the full detector system has been simulated using the software applications musrSim and musrAna 22 . The musrSim application is based on the Geant4 radiation transport toolkit 23 for Monte Carlo simulations and is tailored to the needs of the µSR community.…”

Section: Muon and Positron Detectors A Detector Geometrymentioning

confidence: 99%

The new versatile general purpose surface-muon instrument (GPS) based on silicon photomultipliers for μSR measurements on a continuous-wave beam

Amato

Luetkens

Sedlák

et al. 2017

Review of Scientific Instruments

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We report on the design and commissioning of a new spectrometer for muon-spin relaxation/rotation studies installed at the Swiss Muon Source (SµS) of the Paul Scherrer Institute (PSI, Switzerland). This new instrument is essentially a new design and replaces the old general-purpose surface-muon instrument (GPS) which has been for long the workhorse of the µSR user facility at PSI. By making use of muon and positron detectors made of plastic scintillators read out by silicon photomultipliers (SiPMs), a time resolution of the complete instrument of about 160 ps (standard deviation) could be achieved. In addition, the absence of light guides, which are needed in traditionally built µSR instrument to deliver the scintillation light to photomultiplier tubes located outside magnetic fields applied, allowed us to design a compact instrument with a detector set covering an increased solid angle compared to the old GPS.

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Section: Muon and Positron Detectors A Detector Geometrymentioning

confidence: 99%

The new versatile general purpose surface-muon instrument (GPS) based on silicon photomultipliers for μSR measurements on a continuous-wave beam

Amato

Luetkens

Sedlák

et al. 2017

Review of Scientific Instruments

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“…The yield of USM were measured against sweeping voltages or currents of components on the beam line. Monte Carlo simulation of the beam transportation was performed by using Geant4 based code (musrSim) [5], which simulates the response of µSR instruments (detectors) to muons and their decay constituents. Using the finite element method in OPERA-3D (TOSCA), three-dimensional static electric and magnetic field maps were calculated [7] and used in the musrSim code.…”

Section: Measurement and Simulationmentioning

confidence: 99%

“…The proton beam intensity was 150 kW during USM commissioning (2016/10 to 2017/6). In order to understand the beam at different points on beam line and support the transportation, we have performed simulation study using musrSim [5]; a Monte Carlo simulation based on Geant4 code. In U1A area, ultra slow muon (USM) beam is being commissioned at the sample position where a µSR spectrometer was installed.…”

Section: Introductionmentioning

confidence: 99%

Transportation of Ultra Slow Muon on U-line, MLF, J-PARC

Pant

Adachi

Ikedo

et al. 2018

Proceedings of the 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (ΜSR2017)

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In order to study the surface and interface properties, and novel three-dimensional (3D) imaging of materials using spin polarized muon, we have been developing ultra slow muon microscope on Uline, MLF, J-PARC. Among its two legs, a leg, U1A area where ultra slow muon beam of ∼ mm size with energy 20 eV -30 keV will be available, is dedicated to surface and nano-science studies, whereas another leg, U1B area where muon micro beam will be available, is dedicated to novel 3D imaging of materials with µm spatial resolution. We have generated ultra slow muon and successfully transported to both areas (U1A and U1B). We have also performed simulation study using a Monte Carlo based code, musrSim, to improve the transportation efficiency and achieve intense ultra slow muon at sample positions in both areas. The measurement at different focusing points on the beam line, measurement and simulation study, and preliminary beam profile are reported.

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“…Finally, the designed spin-rotator geometry and the corresponding calculated electric and magnetic field maps were implemented in a simulation program [11] based on GEANT4 [12], [13], using a realistic non-parallel muon beam. The initial muon momentum followed a Gaussian distribution with a mean value of 27.4 MeV/c and a standard deviation of .…”

Section: E Optimization Of Magnet Geometry and Analysismentioning

confidence: 99%

Design of a Magnet for the Spin-Rotator Device for the High Magnetic Field <formula formulatype="inline"><tex Notation="TeX">$\mu{\rm SR}$</tex></formula> Instrument at Paul Scherrer Institute

Vranković

Gabard

Meier

et al. 2012

IEEE Trans. Appl. Supercond.

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In this work we present the design, the construction and the measurements of the magnet for a so-called spin-rotator (Wien filter), a beam line device used to rotate the spin direction (and the associated magnetic moment) of muons in a beam used for condensed matter research at the Swiss Muon Source at the Paul Scherrer Institute. The design parameters-originating both from the properties of the preferred particle beam as well as the technological constraints for the high-voltage components generating the necessary electric field-were optimized for device compactness, cost and high beam transmission.Index Terms-Beam ray-tracing, beam transmission, ExB crossfield device, hall probe magnetic measurements, magnet design, muon beam line, muon spin rotation, optimization, spin-rotator, split-pole magnet, Swiss Muon source, Wien filter.

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MusrSim and MusrSimAna - Simulation Tools for μSR Instruments

Cited by 28 publications

References 10 publications

The new versatile general purpose surface-muon instrument (GPS) based on silicon photomultipliers for μSR measurements on a continuous-wave beam

The new versatile general purpose surface-muon instrument (GPS) based on silicon photomultipliers for μSR measurements on a continuous-wave beam

Transportation of Ultra Slow Muon on U-line, MLF, J-PARC

Design of a Magnet for the Spin-Rotator Device for the High Magnetic Field <formula formulatype="inline"><tex Notation="TeX">$\mu{\rm SR}$</tex></formula> Instrument at Paul Scherrer Institute

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