Introduction

Tokamak GOLEM is a device serving primarily education purposes on the Czech Technical University. It was manufactured in the Soviet Union as TM-1 (“small tokamak no 1”) and was later moved to IPP Prague, serving as CASTOR for 30 years. Today it is an educational device for domestic as well as for foreign students, via remote participation/handling. The reinstalled tokamak ($$R =0.4$$ m, $$a = 0.085$$ m), now baptised as GOLEM (see Fig. 1), operates currently at modest range of parameters, $$B_t<0.8$$ T, $$I_p<8$$ kA, discharge duration $$\approx$$ 13 ms, and with a limited set of diagnostics. This facility is offered to the FUSENET (the 7th FWP European Fusion Education Network) as a (remote) practica experiment.

Remote participation of several foreign universities (in Hungary, Belgium, Poland and Costa Rica) has been successfully performed. A unique feature of the GOLEM device is functionality which enables complete remote participation and control, solely through Internet access. Basic remote control is possible either in online mode via WWW/SSH interface or offline mode using batch processing code. Discharge parameters are set in each case to configure the tokamak for a plasma discharge. Using the X11 protocol it is possible to control in an advanced mode many technological aspects of the tokamak operation, including:

Signpost

This signpost points to parts of the wiki that look presentable. Hopefully the amount of links will grow in the future.

• Chronicle: history of GOLEM for education, photos from the annual Mariánská workshop, FTTF student head count statistics…
• Diagnostics: magnetics, loop voltage, bolometers, and many more… recommended: the probes section
• Discharge: some incomplete info on GOLEM discharges such as chamber cleaning or stabilisation; not very recommended
• Education: records of summer and winter schools, teaching materials, instructions for students: quite recommended
• Events: other events, such as The Kid University, The Night of Scientists or The Prague Museum Night (photos, posters…)
• Experiments: browse the fantastic experiments done on GOLEM!, not all are recorded but some are
• Guests: very few of the people who have visited GOLEM have their pages here; mostly administrative stuff like letters of invitation
• HW: data acquisition systems, capacitors and thyristors, vacuum pumps… all that belongs to the tokamak but isn’t a diagnostic
• Handling: how to get data from GOLEM and what to do with them
• History: earlier incarnations of GOLEM as TM-1 and CASTOR, plus some history on tokamaks in general
• Infrastucture: honestly seems a lot like the HW folder, but a bit more on the “what’s it for” side, like fire safety

Wiki information

The GOLEM wiki is extensive and not very well organised. It is packed with information, but finding that information can be very challenging as our Search function is permanently out of order. The most reliable way to get around is navigating the All pages bar on the left and going on intuition and logic in equal parts.

For wiki contributors, I have created a small tutorial on how to operate the wiki through the web interface.