Preliminary test for radiation tolerant electronic components for the LHC cryogenic system

The LHC accelerator will use about 1600 main superconducting magnets operating below 2K. The magnets temperature is a control parameter and its target accuracy imposes very severe constraints on both the sensing element and its signal conditioner. They will both be installed inside the tunnel, thus exposed to a relatively high neutron fluence and gamma dose. It is then crucial to understand the effects of radiation on the performance of the electronic components that will be selected for the signal conditioner. This paper presents data concerning the radiation effects on typical active and passive discrete electronic components. This is the first step toward building a radiation tolerant signal conditioner