Figure 5.

$\mathrm{\Delta }E/E$ of the whole insert measured with the ²²Na point sources is shown as a function of $V_{\mathrm{o}\mathrm{v}}$ in (a) for different trig and in (b) for different val. It is then shown as a function of $T_{\mathrm{o}\mathrm{p}}$ for a constant $V_{\mathrm{b}\mathrm{i}\mathrm{a}\mathrm{s}}$ in (c) for different trig and in (d) for different val. For a constant $V_{\mathrm{o}\mathrm{v}}$, it is shown as a function of $T_{\mathrm{o}\mathrm{p}}$ in (e) for different trig. Measured with the FDG-filled scatter phantom, it is shown in (f) and (g) as a function of activity for different trig and val. (a) $T_{\mathrm{C}}=15$ °C, $\mathrm{v}\mathrm{a}\mathrm{l}\mathtt{\text{17ph}}$. (b) $T_{\mathrm{C}}=15$ °C, trig 2. (c) const $V_{\mathrm{b}\mathrm{i}\mathrm{a}\mathrm{s}}$, $V_{\mathrm{o}\mathrm{v}}(T_{\mathrm{C}}=15{}^{°}\mathrm{C})=2.5$ V, $\mathrm{v}\mathrm{a}\mathrm{l}\mathtt{\text{17ph}}$. (d) const $V_{\mathrm{b}\mathrm{i}\mathrm{a}\mathrm{s}}$, $V_{\mathrm{o}\mathrm{v}}(T_{\mathrm{C}}=15{}^{°}\mathrm{C})$  =  2.5 V, trig 2. (e) const $V_{\mathrm{o}\mathrm{v}}(T_{\mathrm{C}})=2.5$ V, $\mathrm{v}\mathrm{a}\mathrm{l}\mathtt{\text{17ph}}$. (f) $T_{\mathrm{C}}=0$ °C, $V_{\mathrm{o}\mathrm{v}}=2.5$ V. (g) $T_{\mathrm{C}}=0$ °C, $V_{\mathrm{o}\mathrm{v}}=2.5$ V.