Question

Moisey (“moy-say”) Markov’s proposed design of these devices was attempted by the DUMAND project, but the project was canceled by the US DOE. One of these devices looks for signals of the Askaryan effect over the course of long-duration balloon flights. The first of these devices to be built on a cubic-kilometer scale has 80 subsurface strings arranged on a hexagonal grid, (10[2])each string bearing 60 Digital Optical Modules. After defecting to the USSR, Bruno Pontecorvo proposed building one of these devices (10[2])using carbon tetrachloride because chlorine-37 converts (10[1])to argon-37 (10[1])by reverse electron capture. AMANDA was a proof-of-concept for one of these devices called IceCube, (10[4])which (-5[1])operates (10[1])by using (10[2])PMTs (10[1])to measure Cherenkov radiation. For 10 points, Supernova 1987A (10[1]-5[1])was observed at Kamiokande (10[1])II (“two”), an example (-5[1])of what devices that observe tiny, uncharged leptons? (10[2])■END■ (10[3]0[1])

ANSWER: neutrino detectors [or neutrino telescopes; or neutrino observatory; accept Cherenkov detectors or Cherenkov telescopes until “Cherenkov” is read; prompt on muon detectors or electron detectors until “electron capture” is read by asking “the devices were built primarily to look for what other particle?”; prompt on telescopes or particle detectors or detectors; reject “cosmic ray detectors”] (The second sentence refers to ANITA. Pontecorvo’s idea was used in the Homestake experiment.)
<Other Science>
= Average correct buzz position

Summary

2023 ACF Nationals04/22/2023Y21100%0%14%104.48

Buzzes

PlayerTeamOpponentBuzz PositionValue
Vivek SasseChicago BImperial A6010
Rohan ShelkeUC Berkeley BOhio State A6010
Raul PassementTexas AColumbia A8010
Arya KarthikGeorgia Tech AMichigan A8010
JD KrothIowa State AJohns Hopkins A8610
Geoffrey ChenCornell ANorth Carolina A8810
Dan NiCornell BClaremont A10310
Alex AkridgeIndiana ASouth Carolina A10310
Natan HoltzmanStanford AMinnesota B10310
June YinWUSTL BMcGill A10310
Isaac MammelMaryland AChicago A104-5
Tracy MirkinFlorida AWUSTL A10510
Maxwell YeMinnesota AVanderbilt A10710
Jason HongBrown ANYU A10710
Sharath NarayanNorthwestern AGeorgia Tech B10810
Matthew SiffYale BToronto A11710
David BassVirginia AUC Berkeley A117-5
Alex SchmidtPenn State ADuke A12110
Aum MundheRutgers APenn A124-5
Swapnil GargUC Berkeley AVirginia A13210
Ned TagtmeierChicago AMaryland A13210
Tiffany ZhouFlorida BIllinois A13310
Daniel MaYale ARutgers B1330
Lexi TermanRutgers BYale A13310
Anirudh BharadwajPenn ARutgers A13310