| fe4da5cc |
1 | * |
| 2 | * $Id$ |
| 3 | * |
| 4 | * $Log$ |
| 5 | * Revision 1.1.1.1 1995/10/24 10:21:39 cernlib |
| 6 | * Geant |
| 7 | * |
| 8 | * |
| 9 | #include "geant321/pilot.h" |
| 10 | *CMZ : 3.21/02 29/03/94 15.41.25 by S.Giani |
| 11 | *-- Author : |
| 12 | SUBROUTINE GSTCOR(CC,POT,X,DENS,DELTA) |
| 13 | |
| 14 | C. |
| 15 | C. ***************************************************************** |
| 16 | C. * * |
| 17 | C. * Sternheimer correction as computed in GDRELX * |
| 18 | C. * * |
| 19 | C. * ==>Called by : * |
| 20 | C. * Author L.Urban ********* * |
| 21 | C. * * |
| 22 | C. ***************************************************************** |
| 23 | * |
| 24 | * condensed material ? ( dens .gt. 0.05 ? ) |
| 25 | IF(DENS.GT.0.05) THEN |
| 26 | * IF(POT.LT.1.E-7) THEN (POT was in GeV, now in keV) |
| 27 | IF(POT.LT.0.1) THEN |
| 28 | IF(CC.LT.3.681) THEN |
| 29 | X0=0.2 |
| 30 | ELSE |
| 31 | X0=0.326*CC-1. |
| 32 | ENDIF |
| 33 | X1=2. |
| 34 | ELSE |
| 35 | IF(CC.LT.5.215) THEN |
| 36 | X0=0.2 |
| 37 | ELSE |
| 38 | X0=0.326*CC-1.5 |
| 39 | ENDIF |
| 40 | X1=3. |
| 41 | ENDIF |
| 42 | * gas ? ( dens . le . 0.05 ? ) |
| 43 | ELSE |
| 44 | IF(CC.LE.12.25) THEN |
| 45 | IP=INT((CC-10.)/0.5)+1 |
| 46 | IF(IP.LT.0) IP=0 |
| 47 | IF(IP.GT.4) IP=4 |
| 48 | X0=1.6+0.1*FLOAT(IP) |
| 49 | X1=4. |
| 50 | ELSE |
| 51 | IF(CC.LE.13.804) THEN |
| 52 | X0=2. |
| 53 | X1=5. |
| 54 | ELSE |
| 55 | X0=0.326*CC-2.5 |
| 56 | X1=5. |
| 57 | ENDIF |
| 58 | ENDIF |
| 59 | ENDIF |
| 60 | * |
| 61 | XA=CC/4.606 |
| 62 | XM=3. |
| 63 | AA=4.606*(XA-X0)/(X1-X0)**XM |
| 64 | * |
| 65 | DELTA=0. |
| 66 | IF(X.GT.X0) THEN |
| 67 | DELTA=4.606*X-CC |
| 68 | IF(X.LT.X1) DELTA=DELTA+AA*(X1-X)**XM |
| 69 | ENDIF |
| 70 | |
| 71 | END |
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