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SUMMARY:Hot Commissioning and First User Experiments on the Spatz Neutron 
 Reflectometer
DTSTART;VALUE=DATE-TIME:20211126T010500Z
DTEND;VALUE=DATE-TIME:20211126T012000Z
DTSTAMP;VALUE=DATE-TIME:20260306T091118Z
UID:indico-contribution-4331@events01.synchrotron.org.au
DESCRIPTION:Speakers: Anton Le Brun (ANSTO)\nThe Spatz neutron beam instru
 ment is the latest to be installed and commissioned in the Neutron Guide H
 all at the 20 MW OPAL Research Reactor. Spatz is a time-of-flight neutron 
 reflectometer used for studying nanoscale structures at surfaces and inter
 faces and utilises a vertical sample geometry / horizontal scattering geom
 etry. The instrument is situated at the end position of the CG2B neutron g
 uide and views the cold-neutron source (CNS). The disc chopper cascade tha
 t pulses the neutron beam to produce the time-of-flight is very configurab
 le to provide a wavelength resolution between 1 to 12 %. The detector is a
  helium-3 two-dimensional detector that is capable of measuring both specu
 lar and off-specular reflectivity. The sample stage can support a range of
  different sample environments including multiple solid-liquid cells\, an 
 atmospheric chamber with temperature control\, the ATR-FT-IR spectrometer 
 for simultaneous infra-red spectroscopy and neutron reflectometry measurem
 ents\, electrochemical cells\, etc. The geometry of the instrument and the
  sample environment available means that Spatz is well suited to studying 
 phenomena at the gas-solid interface and solid-liquid interface. The Spatz
  instrument has been fully commissioned with neutrons and the results of t
 he commissioning are presented. This includes measurements using the ‘Br
 agg mirror’ consisting of 25 bilayers of nickel and titanium\, different
  solid substrates of silicon\, quartz and sapphire\, spin-coated polymer s
 amples\, and films under liquid. Reflectivity down to 10-7 can be achieved
  within 1 hour measuring time with good counting statistics in most cases.
  Early user experiments cover a range of science including investigating t
 he thermal stability of organic solar cell materials and proteins interact
 ing with biomimetic phospholipid cell membranes.\n\nhttps://events01.synch
 rotron.org.au/event/146/contributions/4331/
LOCATION:Online
URL:https://events01.synchrotron.org.au/event/146/contributions/4331/
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