HITS500 Digitisation for drift- or MWP- Chambers

CALL GPDRIF (DETREP,HITREP,IOUT*)

DETREP

( REAL) array of 6 with detector description:

1

number of wires;

2

wire spacing in cm;

3

$sin(\alpha )$ ;

4

$cos(\alpha )$ ;

5

distance of wire 1 from the origin in cm;

6

drift velocity (cm/nsec)

HITREP

( REAL) array of 2 with track description:

1

x coordinate of intersection;

2

y coordinate of intersection;

IOUT

( INTEGER) result of digitisation:

1

wire number;

2

drift time (signed to avoid left/right ambiguity).

CALL GCMWPC (DETREP,HITREP,IOUT*)

DETREP

( REAL) array of 6 with detector description:

1

number of wires;

2

wire spacing (radians);

3

$d\theta /dz$ along the wires;

4

$\theta$ of a point on wire 1;

5

z of a point on wire 1 corresponding to $\theta$ = DETREP(4);

6

gap width;

HITREP

( REAL) array of 4 with track description:

1

$\theta$ coordinate of intersection;

2

z coordinate;

3

$d\theta /dr$ ;

4

$dz/dr$ ;

IOUT

( INTEGER) array of 4 with result of digitisation:

1

wire number (-1 if missing);

2

cluster size;

3

wire number of second cluster if any;

4

cluster size;

CALL GPMWPC (DETREP,HITREP,IOUT*)

DETREP

( REAL) array of 6 with detector description:

1

number of wires;

2

wire spacing (radians);

3

$sin(\alpha )$ ;

4

$cos(\alpha )$ ;

5

distance of wire 1 from the origin in cm;

6

gap width;

HITREP

( REAL) array of 4 with track description:

1

x coordinate of intersection;

2

y coordinate of intersection;

3

$dx/dz$ ;

4

$dy/dz$ ;

IOUT

( INTEGER) array of 2 with result of digitisation:

1

wire number (-1 if missing);

2

cluster size;

HITS510