Question

The CANDU design of these devices is partially named for its use of heavy water as a neutron moderator, as well as the country of Canada. For 10 points each:
[10m] Name these devices, which use control rods to limit the propagation of neutrons. The first one of these devices was known as Chicago Pile-1.
ANSWER: nuclear reactors [or fission reactors; prompt on reactor or CANDU reactor]
[10e] Control rods are often made with this allotrope of carbon, which is the so-called “lead” in pencils.
ANSWER: graphite
[10h] CANDU reactors can use thorium to generate uranium, which makes it one of these types of reactors that generates more fissile material than it uses.
ANSWER: breeder reactor
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Summary

2024 ACF Fall at CornellfallY821.25100%100%13%
2024 ACF Fall at Ohio StatefallY820.00100%88%13%
2024 ACF Fall at WashingtonfallY620.00100%83%17%
2024 ACF Fall at GeorgiafallY1018.0090%80%10%
2024 ACF Fall at North CarolinafallY918.8989%78%22%
2024 ACF Fall at Claremont CollegesfallY528.00100%100%80%
2024 ACF Fall at RutgersfallY718.57100%71%14%
2024 ACF Fall at IllinoisfallY920.0089%100%11%

Data

Binghamton ACornell A1010020
Binghamton BRIT A1010020
Cornell DESF10101030
RIT BCornell F1010020
Cornell GRIT C1010020
Penn StateBinghamton C1010020
SyracuseCornell E1010020
Cornell CU of Rochester B1010020