The High Intensity Proton Accelerator Facility

Grillenberger, Joachim; Baumgarten, C.; Seidel, Mike

doi:10.21468/scipostphysproc.5.002

Cited by 34 publications

(38 citation statements)

References 29 publications

(38 reference statements)

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“…The MIXE experiment was performed using the πE1 beamline, fed by the High Intensity Proton Accelerator (HIPA) [50] of the Paul Scherrer Institute (PSI), Switzerland. This beamline is capable of delivering positive or negative muons [51].…”

Section: Experimental Details and Resultsmentioning

confidence: 99%

Characterization of a Continuous Muon Source for the Non-Destructive and Depth-Selective Elemental Composition Analysis by Muon Induced X- and Gamma-rays

et al. 2022

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The toolbox for material characterization has never been richer than today. Great progress with all kinds of particles and interaction methods provide access to nearly all properties of an object under study. However, a tomographic analysis of the subsurface region remains still a challenge today. In this regard, the Muon Induced X-ray Emission (MIXE) technique has seen rebirth fueled by the availability of high intensity muon beams. We report here a study conducted at the Paul Scherrer Institute (PSI). It demonstrates that the absence of any beam time-structure leads to low pile-up events and a high signal-to-noise ratio (SNR) with less than one hour acquisition time per sample or data point. This performance creates the perspective to open this technique to a wider audience for the routine investigation of non-destructive and depth-sensitive elemental compositions, for example in rare and precious samples. Using a hetero-structured sample of known elements and thicknesses, we successfully detected the characteristic muonic X-rays, emitted during the capture of a negative muon by an atom, and the gamma-rays resulting from the nuclear capture of the muon, characterizing the capabilities of MIXE at PSI. This sample emphasizes the quality of a continuous beam, and the exceptional SNR at high rates. Such sensitivity will enable totally new statistically intense aspects in the field of MIXE, e.g., elemental 3D-tomography and chemical analysis. Therefore, we are currently advancing our proof-of-concept experiments with the goal of creating a full fledged permanently operated user station to make MIXE available to the wider scientific community as well as industry.

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Section: Experimental Details and Resultsmentioning

confidence: 99%

Characterization of a Continuous Muon Source for the Non-Destructive and Depth-Selective Elemental Composition Analysis by Muon Induced X- and Gamma-rays

et al. 2022

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“…Target E provides secondary particles for five beamlines, two in forward direction, PiE1 and MuE1, two perpendicular to the proton beamline, MuE4 and PiE3, and one (PiE5) at a backward angle. Muon and pion rates are given in Section 2 [2]. Each target is a 40-cm-diameter graphite wheel that rotates at 1 Hz to distribute the heat spot from the pencil beam.…”

Section: Meson Production Target Stationsmentioning

confidence: 99%

“…The High Intensity Proton Accelerator (HIPA) at PSI [1] delivers a 590 MeV continuous proton beam of up to 2.4 mA, which is accelerated in three stages and described in [2] (of this proceedings). After the Ring cyclotron, the proton beam is sent to the two meson production target stations, M and E 1 [3].…”

Section: Introductionmentioning

confidence: 99%

The Meson Production Targets in the high energy beamline of HIPA at PSI

Kiselev

Duperrex

Jollet

et al. 2021

SciPost Phys. Proc.

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Two target stations in the 590 MeV proton beamline of the High Intensity Proton Accelerator (HIPA) at the Paul Scherrer Institut (PSI) produce pions and muons for seven secondary beamlines, leading to several experimental stations. The two target stations are 18 m apart. Target M is a graphite target with an effective thickness of 5 mm, Target E is a graphite wheel with a thickness of 40 mm or 60 mm. Due to the spreading of the beam in the thick target, a high power collimator system is needed to shape the beam for further transport. The beam is then transported to either the SINQ target, a neutron spallation source, or stopped in the beam dump, where about 450 kW beam power is dissipated. Targets, collimators and beam dumps are described.

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“…Experimental Details and ResultsThe MIXE experiment was performed using the πE1 beamline, fed by the High Intensity Proton Accelerator (HIPA)[49] of the Paul Scherrer Institute (PSI), Switzerland. This beamline is capable of delivering positive or negative muons[50].…”

mentioning

confidence: 99%

Characterization of a continuous muon source for the Muon-Induced X-ray Emission (MIXE) Technique

Biswas¹,

Gerchow²,

Luetkens³

et al. 2022

Preprint

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The toolbox for material characterization has never been richer than today. Great progress with all kinds of particles and interaction methods provide access to nearly all properties of an object under study. However, a tomographic analysis of the subsurface region remains still a challenge today. In this regard, the Muon-Induced X-ray Emission (MIXE) technique has seen rebirth fueled by the availability of high intensity muon beams. We report here a study conducted at the Paul Scherrer Institute (PSI). It demonstrates that the absence of any beam time-structure leads to low pile-up events and a high signal-to-noise ratio (SNR) with less than one hour acquisition time per sample or data point. This performance creates the perspective to open this technique to a wider audience for the routine investigation of non-destructive and depth-sensitive elemental compositions, for example in rare and precious samples. Using a hetero-structured sample of known elements and thicknesses, we successfully detected the characteristic muonic X-rays, emitted during the capture of a negative muon by an atom, and the gamma-rays resulting from the nuclear capture of the muon, characterizing the capabilities of MIXE at PSI. This sample emphasizes the quality of a continuous beam, and the exceptional SNR at high rates. Such sensitivity will enable totally new statistically intense aspects in the field of MIXE, e.g. elemental 3D-tomography and chemical analysis. Therefore, we are currently advancing our proof-of-concept experiments with the goal of creating a full fledged permanently operated user station to make MIXE available to the wider scientific community as well as industry.

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The High Intensity Proton Accelerator Facility

Cited by 34 publications

References 29 publications

Characterization of a Continuous Muon Source for the Non-Destructive and Depth-Selective Elemental Composition Analysis by Muon Induced X- and Gamma-rays

Characterization of a Continuous Muon Source for the Non-Destructive and Depth-Selective Elemental Composition Analysis by Muon Induced X- and Gamma-rays

The Meson Production Targets in the high energy beamline of HIPA at PSI

Characterization of a continuous muon source for the Muon-Induced X-ray Emission (MIXE) Technique

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