**3.2. GPR data measurements at the Zeynel Bey tomb**

**Figure 16.** Appearance of the Zeynel Bey Tomb, the first example of Anatolian mausoleum tradition, with some archi‐

126 Imaging and Radioanalytical Techniques in Interdisciplinary Research - Fundamentals and Cutting Edge Applications

**Figure 17. (a)** GPR data measurements inside the Zeynel Bey Tomb, **(b)** Interior plan of Zeynel Bey Tomb: octagonal, with muqarnas niches supporting the transition to the round base of the dome, **(c)** The data measurement plan inside

tectural details.

the tomb.

In this section, we present only two parts of the huge study area, including the tomb of Zeynel Bey and the Ottoman bath, an area of approximately 150×200m. The first part was inside of the tomb. The Zeynel Bey tomb is 4m along the east–west orientation and 3.5 m along the south–west (Figure 17). A RAMAC CUII GPR system was used with a bi-static 500-MHz center band shielded antenna to acquire the profile data. Within the tomb, 9 parallel profiles spaced 0.5m apart were directed from east to west, and 8 profiles were directed from north to south, making a total of 17 profiles (Figure 17c). The second part of the survey was conducted on the northeast side of the tomb, and 19 profiles were directed from south to north on the east side (Figure 18). Parallel profiles were spaced 1m apart, and each profile had a trace spacing of 5cm and a 70ns time-window per trace.
