Fig. 3

IRRAMICE setup in commissioning mode, (a) with phantoms and holders for ionisation chambers and alanine pellet holders, positioned using the lock-bars to ensure reproducibility. (b) Treatment plan with a dose of 12 Gy delivered to an alanine pellet placed in the abdomen compartment within the mouse phantom. (c) kV image taken without the rotating disc part of the collimator to allow for correct alignment of the pellet (lateral and longitudinal). (d) Lasers used to align the rotating collimator to the marker on the mouse phantom.