Modern large tokamak devices, with electron and ion temperatures in the range of 1 to 10 keV, plasma densities of 1 to 10 x 1013 cm-3, and quasistationary discharges of 1 to 10 s, emit copious amounts of soft x-ray and XUV radiation. Furthermore, plasma parameters such as temperatures, density, power input, and radiative power are usually well-characterized, making tokamak discharges extremely useful in experimental atomic physics and, to a lesser extent, instrumentation calibration.
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