Table 1: Convolution function factor.
    Function Form  
Function Parms $\eta$ Linear $\eta$ Circular $R_{\rm support}$
Pill Box ... 1.00 0.78 0.5
$\exp\left[-\left(\frac{\vert z\vert}{b}\right)^2\right]$ b = 1.00 3.14 3.14 3.0
$\frac{\sin\left(\frac{\pi \vert z\vert}{a}\right)}{\frac{\pi \vert z\vert}{a}}$ a = 1.14 1.36 1.16 3.0
$\frac{\sin\left(\frac{\pi \vert z\vert}{a}\right)}{\frac{\pi \vert z\vert}{a}}\times {\exp\left[-\left(\frac{\vert z\vert}{b}\right)^2\right]}$ a = 1.55, b = 2.52 2.33 1.43 3.0
$\frac{J_1\left(\frac{\vert z\vert}{c}\right)}{\frac{\vert z\vert}{c}}\times {\exp\left[-\left(\frac{\vert z\vert}{b}\right)^2\right]}$ b = 2.52, c = 1.55 3.59 3.03 3.0


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