| $A$ | $20$ | $60$ | $90$ | $145$ | $235$ |
| $\cfrac{\Delta E}A,\ МэВ$ | $9.322$ | $11.269$ | $11.825$ | $12.390$ | $12.878$ |
| $Элемент$ | $A$ | $Z$ | $\cfrac{\Delta E}A,\ МэВ$ |
| $\rm F$ | $20$ | $9$ | $8.02$ |
| $\rm Co$ | $60$ | $27$ | $8.82$ |
| $\rm Y$ | $90$ | $39$ | $8.72$ |
| $\rm Nd$ | $145$ | $60$ | $8.32$ |
| $\rm Pa$ | $235$ | $91$ | $7.62$ |