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SUMMARY:Acoustic response of nuclear recoils in bubble chambers
DTSTART;VALUE=DATE-TIME:20210830T154500Z
DTEND;VALUE=DATE-TIME:20210830T160000Z
DTSTAMP;VALUE=DATE-TIME:20261012T121237Z
UID:indico-contribution-15898@indico.ific.uv.es
DESCRIPTION:Speakers: Benjamin Broerman (Queen's University)\nThe bubble c
 hambers of the PICO collaboration use the acoustic signal generated from n
 ucleations to classify nuclear recoil events from alpha decays in the bulk
  fluid. The success of these detectors in probing the potential WIMP-proto
 n cross section comes in part from the low energy threshold that can be ac
 hieved. This nucleation threshold\, based on the Seitz model\, is dependen
 t on fluid type\, pressure\, and temperature. At higher thresholds bubble 
 nucleation does occur but with a significant loss in the measurable acoust
 ic signal. To investigate this\, the acoustic response of bulk nuclear rec
 oil events was measured as a function of pressure and temperature and foun
 d to depend exponentially on both parameters. Understanding the form of th
 e acoustic response can be used to predict potential operating conditions 
 for specific thresholds in future larger-scale superheated liquid detector
 s. Details of the measurement in a small-scale test setup and a comparison
  to existing data will be presented.\n\nhttps://indico.ific.uv.es/event/61
 78/contributions/15898/
LOCATION:
URL:https://indico.ific.uv.es/event/6178/contributions/15898/
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