FIGURE 2. Data from a single run.
From the following article:
Observation of nuclear fusion driven by a pyroelectric crystal
B. Naranjo, J.K. Gimzewski and S. Putterman
Nature 434, 1115-1117 (28 April 2005)
doi: 10.1038/nature03575
a, Crystal temperature. The heating rate was 12.4 K min-1, corresponding to a pyroelectric current of 22 nA and a heating power of 2 W. b, X-rays detected. c, Faraday cup current. d, Neutrons detected.
