<material_interactions>
<chemical_reaction process="ionization">
	<sources>Xe,e-</sources>
	<products>Xe+,e-</products>
	<rate>const</rate>
	<rate_coeffs>1e-18</rate_coeffs>
</chemical_reaction>

<mcc_collision process="scatter">
	<source>Xe+</source>
	<target>Xe</target>
	<sigma>const</sigma>
	<sigma_coeffs>1e-18</sigma_coeffs>
</mcc_collision>

<surface_impact source="Xe+" target="BN">
	<emission>diffuse</emission>
	<product>Xe</product>
	<c_stick>0.5</c_stick>
	<c_rest>1</c_rest>
	<c_accom>0.5</c_accom>
	<sputter type="const" yield="0.1" product="BN" />
</surface_impact>
</material_interactions>