To make sure the instrument was ready for the harsh environment, the researchers needed to mimic the Sun’s intense heat radiation in a lab. To create a test-worthy level of heat, the researchers used a particle accelerator and IMAX projectors — jury-rigged to increase their temperature. The projectors mimicked the heat of the Sun, while the particle accelerator exposed the instrument to radiation to make sure it could measure the accelerated particles under the intense conditions.
Source: tatoeba (7058441)