can be seen if there is any headspace and additional material can be added to fill it for further assurance it is feasible to apply a safety factor by increasing the volume of aluminum it is also feasible to perform detailed finite element analysis calculations on the temperature distribution and heat production with time for a given packing geometry as done by lund et al this will enable the calculation of the heat loss from the immediate area of the incipient reaction and thus spread the heat absorption over a greater volume of diluent and gas that absorb the heat generated which reduces the temperature rise this is also the case for the hydrogen diluent as a greater volume of gas is heated than the core gas which is heated to the decomposition temperature this accounts for the success of the prior art in diluting germane to 20 which results in a calculated peak temperature of 463 u00b0 c when tamaru reports the minimum decomposition temperature of germane is 278 u00b0 c such calculations are particularly appropriate for germane and other unstable hydrides because the heterogeneous reaction on the surface has a smaller activation energy than the homogeneous reactions hence.