Question

In this technique, “frame overlap” can spoil the measurement if a chopper is used and the energy spectrum of the source is too broad. In analogy to NMR, a variant of this technique using polarized beams is called “spin echo.” This technique controls the difference between initial and final wavevector in “constant-Q mode,” which has been implemented since the 1950s with “triple axis” configurations. (15[1])Bertram (*) Brockhouse and (10[1])Clifford (-5[1])Shull won a Nobel for this technique, which can measure bulk properties due to the beam's high penetrating power. This technique often uses a spallation source (10[1]-5[1])to generate the incident particle beam, which then undergoes elastic or inelastic collisions with the analyte. (-5[1])For 10 points, (-5[1])what technique probes a material’s structure by observing the deflection of uncharged (10[1])particles? ■END■ (10[2]0[4])

ANSWER: neutron scattering [accept neutron diffraction or neutron spectrometry or neutron crystallography; prompt on scattering or diffraction or crystallography; reject any answer with the word “X-ray”]
<BB>
= Average correct buzz position

Summary

2023 BHSU @ Northwestern02/25/2023Y580%20%40%87.00
2023 BHSU @ Maryland03/11/2023Y10%0%100%0.00
2023 BHSU @ Waterloo04/15/2023Y367%0%33%125.00

Buzzes

PlayerTeamOpponentBuzz PositionValue
Nikhil ChellamNorthwesternChicago A6315
Eric MukherjeeAmartya Senpai Notice MeMaryland B-6610
Earthflax GeologybuzzerMaryland B-WUSTL67-5
Taylor HarveyMojo ShojoChicago B+9310
Tony ChenThe Passion According to C.H.The Vulture's Guide to Buzz93-5
Ashvin SrivatsaEpic GamesMichigan109-5
JJ TsaiRutgers DiasporaMaryland A112-5
Colin VeeversNeg 5! Playing Quizbowl, Liddy StyleMilan et al.12410
Caleb KendrickMaryland ARutgers Diaspora1260
Conor ThompsonMichiganEpic Games1260
Amith PunyalaWUSTLMaryland B-12610
Martin ProfantParth et al.Cameron et al.1260
Cameron AminiCameron et al.Parth et al.1260
Liam KusalikThe Vulture's Guide to BuzzThe Passion According to C.H.12610