The Belle II experiment will make precision measurements and explore new physics in the flavor sector at the SuperKEKB asymmetric e+e− collider now under construction at the KEK labora- tory (Tsukuba, Japan). All the Belle II sub-detectors have been redesigned to improve the perfor- mances with respect to its predecessor Belle and to cope with the expected luminosity increase. A large effort has been made to minimise the overall material budget for the VXD, the innermost tracking device of Belle II. The VXD will be composed of 2 layers of of DEPFET pixels (PXD) and 4 layers of double-sided silicon strips (SVD).
These proceedings describe the status of SVD construction and the progress since last year, like the development of the monitoring system of the SVD. Special care is needed to monitor all ambient parameters such as temperature, humidity and radiation levels. In addition to the radiation dose accumulated through the life of the experiment, also the instantaneous radiation rate has to be monitored, in order to be able to react quickly to sudden spikes for the purpose of protecting the detectors. A radiation monitoring and beam abort system based on single-crystal diamond sensors is now under development for the VXD.
