-Number of detectors: <input type="text" name="RS_NDet" size="4" value="367"><p>
-Number of Rotations: <input type="text" name="RS_NRot" size="4" value="320"><p>
-Number of Rays<br>(samples) per detector: <input type="text" name="RS_NRay" size="2" value="1"><p>
-Rotation Angle<br>as a multiple of PI: <input type="text" name="RS_RotAngle" size="3" value="1.0"><br>
+Geometry:<br>
+<INPUT type="radio" name="PJ_Geometry" value="parallel" checked>Parallel<br>
+<INPUT type="radio" name="PJ_Geometry" value="equiangular">Equiangular<br>
+<INPUT type="radio" name="PJ_Geometry" value="equilinear">Equilinear<br>
+<p>
+Number of Detectors: <input type="text" name="PJ_NDet" size="4" value="367"><p>
+Number of Rotations: <input type="text" name="PJ_NRot" size="4" value="320"><p>
+Focal Length: <input type="text" name="PJ_FocalLength" size="4" value="2.0"><p>
+Number of Rays<br>(samples) per detector: <input type="text" name="PJ_NRay" size="2" value="3"><p>
+Rotation Angle<br>as a multiple of PI: <input type="text" name="PJ_RotAngle" size="3" value="1.0"><br>