Tossup
Preventing the use of rotationally symmetric static fields in this technique can help overcome a limit set by Scherzer’s theorem. The “spot-scan” technique is sometimes used to prevent beam-induced motion in this larger technique. Samples in this technique may use heavy metals such as tungsten and osmium to undergo a “negative stain.” The development of a form of this technique, for which Dubochet, Frank, and Henderson were awarded the 2017 Nobel Prize in Chemistry, generated a “resolution revolution.” In a form of this technique, the observed specimen is embedded in vitrified ice before being mounted on a grid and fixed via plunging in liquid ethane. For 10 points, name this imaging technique that comes in “scanning,” “transmission,” and “cryogenic” types. ■END■
Buzzes
Summary
| Tournament | Edition | TUH | Conv. % | Neg % | Average Buzz |
|---|---|---|---|---|---|
| Lower Mid-Atlantic | 2025-02-01 | 6 | 83% | 17% | 116.00 |
| Midwest | 2025-02-01 | 6 | 100% | 50% | 96.50 |
| Northeast | 2025-02-01 | 4 | 75% | 25% | 109.33 |
| Overflow | 2025-02-01 | 4 | 75% | 25% | 71.67 |
| Pacific Northwest | 2025-02-01 | 2 | 100% | 50% | 118.00 |
| UK | 2025-02-01 | 10 | 90% | 0% | 91.78 |
| Upper Mid-Atlantic | 2025-02-01 | 8 | 88% | 0% | 94.14 |