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The next generation of large scale fusion devices--ITER/LMJ/NIF--will require diagnostic components to operate in environments far more severe than those encountered in present facilities. This harsh environment is the result of high fluxes of neutrons, gamma rays, energetic ions, electromagnetic radiation, and in some cases, debris and shrapnel, at levels several orders of magnitude higher than those experienced in today's devices. The similarities and dissimilarities between environmental effects on diagnostic components for the inertial confinement and magnetic confinement fusion fields have been assessed. Areas in which considerable overlap have been identified are optical transmission materials and optical fibers in particular, neutron detection systems and electronics needs. Although both fields extensively use cables in the hostile environment, there is little overlap because the environments and requirements are very different.

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High Energy Physics experiments under preparation at CERN (Geneva, Switzerland) with the future LHC (Large Hadron collider) require a fast, low noise, very rad-hard, mixed analog-digital microelectronics VLSI technology. Readout electronics designed using such a technology for the central parts of the LHC particle detectors must withstand more than 10 Mrad (SiO2) and 1014 neutrons/cm2 over 10 years of operation. We present here recent results obtained with a new rad-hard analog-digital technology called DMILL, which monolithically integrates NPN bipolar, CMOS and P-JFET transistors, and which has been specifically developed to fulfill the severe constraints of LHC detector readout circuit