Monitoring system of experiments with screenshots at BL11 in J-PARC MLF

Okazaki, Nobuo*; Hattori, Takanori   

There has been no method for users to monitor the current status of the experiments at BL11 (PLANET) from outside. To solve this, a monitoring system, named RemoShot, has been implemented to capture remotely the screenshots of the control PC. The RemoShot consists of a screenshot control server, a control PC in the beamline, and cloud storage. It operates in the following sequence: 1) Start a screenshot control server on the PC at beamline, 2) The screenshot control server accesses the MLF-side PC (measurement control PC) via SSH authentication and capturesa screenshot, 3) the captured screenshot is stored in cloud storage, and 4) after authentication, users can see the screenshot in the cloud. This system allows users to check the status of their experiments from anywhere using smartphones and other devices, and to quickly revise the experimental plan in case of measurement issuers or sequence delays due to unexpected beam off. We also discussed security and operating costs of this system.