Up to now, diamond anvil cells (DAC) have been used for irradiation experiments with swift heavy ions and the simultaneous application of high pressures. While allowing the application of spectroscopic measurements inside the cell, the drawback of the DAC is the extremely small maximum sample size (in the μm range). Various measurement techniques and also possible industrial applications require larger volumes of irradiated matrial. We hereby present the results of the first successful swift heavy ion irradiationinside a large volume Paris-Edinburgh press.