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SUMMARY:Muon-Induced X-ray Emission (MIXE) at PSI
DTSTART;VALUE=DATE-TIME:20220829T150000Z
DTEND;VALUE=DATE-TIME:20220829T152000Z
DTSTAMP;VALUE=DATE-TIME:20220826T105943Z
UID:indico-contribution-3664@indico.stfc.ac.uk
DESCRIPTION:Speakers: Sayani Biswas (PSI)\nThe Muon-Induced X-ray Emission
  (MIXE) technique\, first developed in the 1980's mostly for studying fund
 amental science\, has recently seen a wide usage in the field of applied s
 ciences\, which includes archaeology\, battery research\, meteorites\, anc
 ient paintings etc.\nProbing deep inside the material (up to a few mm) and
  being non-destructive\, this technique is sensitive to all the elements o
 f the periodic table\, except hydrogen.\nThe continuous muon source at Pau
 l Scherrer Institute (PSI) along with the newly in-house made instrument i
 s one of the most powerful setups for an efficient usage of this technique
 .\nWe present here recent developments of this dedicated detector setup fo
 r MIXE at PSI\, used at the $\\pi$E1 beamline\, which can deliver negative
  muon rates between $\\sim$1.5 kHz and $\\sim$100 kHz for a momentum range
  between 20 MeV/c and 45 MeV/c\, respectively.\nThis setup presently consi
 sts of 11 HPGe detectors\, with an overall absolute efficiency of $\\sim$5
 \\% and a resolution of $\\sim$1 keV (FWHM) for muonic X-ray energies at $
 \\sim$100~keV. \nIn addition to the HPGe detectors\, there are two scintil
 lator detectors\, utilized to detect the muon entrance time and as veto co
 unter.\nBy making use of the continuous-wave character of the PSI beam\, a
  clear distinction between X-rays\, produced during the muon cascade\, and
  $\\gamma$-rays produced after the capture of the muon by the nucleus\, is
  possible hence providing a second route for the elemental and isotopic de
 termination.\nThis setup enables the determination of the quantitative ele
 mental composition within $\\sim$1 h of DAQ time.\nA proof-of-principle ex
 periment\, using a simple three-layered sandwich sample has been recently 
 published [1]. \nSeveral other experiments on precious objects from archae
 ology and meteorites along with operando battery samples have been perform
 ed and the analysis is in progress.\n\n[1] S. Biswas\, L. Gerchow et al.\,
  App. Sci. 2022\, 12(5)\, 2541.\n\nhttps://indico.stfc.ac.uk/event/53/cont
 ributions/3664/
LOCATION:Science and Technology Campus\, University of Parma
URL:https://indico.stfc.ac.uk/event/53/contributions/3664/
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