GOLEM is a limiter tokamak with circular poloidal cross-section and with an iron transformer core. It has 18 diagnostic ports, which are organized in six groups of three ports as shown in figure ports. Each group consists of a top, bottom and a mid plane port. The main (i.e., the largest) ports are located on the North and on the South side of the torus; \(45^{\circ }\) from them to each side, are the other groups: South-East, South-West, North-East and North-West. The poloidal limiter made of molybdenum is located \(40^{\circ }\) to the West from the North port.

[fig:diagnostic ports]

Basic parameters

Main parameters of the GOLEM tokamak:

• Liner Major radius: \(0.4\) m

• Liner Minor radius (vacuum vessel): \(0.1\) m

• Plasma radius (limiter radius): \(0.085\) m

• Toroidal magnetic field: \(0.5-1.5\) T

• Plasma current: \(5-20\) kA

• Length of the discharge: \(<50\) ms

• Central electron density: \(0.5-3\times 10 ^{19}\, \text{m}^{-3}\)

• Central electron temperature: \(100-300\) eV

• Edge electron density: 1\(\times 10^{18}\, \text{m}^{-3}\)

• Edge electron temperature: \(10-40\) eV

• Liner material: Bellows Stainless Steel

• Liner Conducting in Toroidal Dir.: Yes

• Diagnostic Ports: 6x3

• Coating Major Radius: \(0.4\) m

• Coating Minor Radius: \(0.115\) m

• Coating Material: Copper

• Coating Conducting in Toroidal Dir.: No

• Coating Thickness: \(10\) mm

References

• Basic Tokamak Operation Physical Quantities (pdf)

• The GOLEM Diagnostics (pdf)

• The GOLEM Tour (pdf)

• The GOLEM Experimental Setup (pdf)