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1 | COMMENTS ON IONISATION AND KNOCK-ON ELECTRONS WITH |
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2 | CORRECTION |
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3 | |
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4 | 1) Let us introduce Tbound (? 100 KeV); below Tbound the correction to the |
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5 | differential cross section is negligibly small. |
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6 | 2) There also exists Tmax (= function (E)) defined by kinematics. In this case, the |
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7 | following possibilities appear: |
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8 | 3) Tmax < Tbound; usual BBS energy loss (and Bhabha cross section for Tcut < |
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9 | Tmax, with correction or without it, it does not play any substantial role) may be |
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10 | used, as it was earlier. But it takes place only for rather low muon energies. |
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11 | 4) Tmax > Tbound, with three possibilities for Tcut: |
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12 | 5) Tcut < Tbound: restricted BBS energy loss (< Tcut), numerical calculation of the total |
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13 | cross section with accurate formula and sampling with accurate formula are needed. |
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14 | 6) Tbound < Tcut < Tmax: for energy loss it is necessary to take usual restricted BBS |
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15 | (< Tbound) plus twice restricted numerically integrated energy loss for the interval |
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16 | (Tbound,Tcut), total cross section and sampling being similar to preceding point. |
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17 | 7) Tcut > Tmax: restricted BBS (< Tbound) plus twice restricted numerical (Tbound, |
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18 | Tmax); discrete interactions are not simulated. |
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19 | |
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20 | RPK 10.05.2000 |
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21 | |
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