ANSYS thermal

Dear all. I hope you are well. I am attempting very basic thermal modelling using ANSYS. Its a very basic analysis but Its taking me very long to find my way. I will be very grateful if you could please point me in the right direction. I am a final year M Eng Mechanical Engineering student at the University of Bath and doing my final year project on Energy harvesting applications of Pyroelectric materials. M model is as follows: A ceramic (disk shaped)is placed under an IR lamp and heated using the radiaion from the lamp. The sides of the ceramic is open to ambient air and the ceramic itself is placed on a wooden block. From what I think, the ceramic is under the influence of radiation on the top surface, convection on the sides and top surface and conduction only at the bottom (contact with wood). I thought using an axis-symmetric model would be logical. Using PLANE 55 elements and making the area that is half the cross section. I am having trouble inputting radiation to the top surface. Do I need to add another element (SURF 151) which links radiation to PLANE 55 elements? Ill be very grateful for your help.