Wechselwirkungen sehr langsamer hochgeladener Ionen mit einer ...

160 C. AUGER-Meßprogrammcode
}
_dos_gettime (&t);
printf ("Ende der Messung um %02d.%02d:%02d Uhr.\n\n", t.hour, t.minute, t.second);
err = DIOWrite (SLOTISA_0, ONBOARD, PORT_0, !10);
ErrorRoutine ("Error while writing to DIO port 0 on 1st board", err);
err = DIOWrite (SLOTISA_0, ONBOARD, PORT_1, !0);
ErrorRoutine ("Error while writing to DIO port 1 on 1st board", err);
/***************************************************************/
/******************* FILE: config.c ****************************/
/***************************************************************/
/* makros concerning the counters */
#define INVERT_CLOCK 1
#define INVERT_GATE 1
#define INVERT_OUTPUT 1
#define DIVIDER_LATCH_ON 1
#define EXTERNAL_CLOCK 1
#define DUMMY 0
/* makros concerning the digital I/O */
#define HANDSHAKE 1 /* for ’ON’ no ’READBit()’ possible on port */
#define OUTPUT 0
#define INITIAL_ZERO 0
/* makros concerning the burstgenerator */
#define BURSTPERIOD_1 800 /* in multiples of 125ns, minimum 3, must >= pulseperiod*pulsesperburst */
#define PULSEPERIOD_1 5 /* in multiples of 125ns, minimum 3 */
#define PULSES_PER_BURST_1 3 /* minimum value */
#define BURSTPERIOD_2 9000 /* in multiples of 125ns, minimum 3, must >= pulseperiod*pulsesperburst */
#define PULSEPERIOD_2 3 /* in multiples of 125ns, minimum 3 */
#define PULSES_PER_BURST_2 3 /* minimum value */
int
set_counter (unsigned long *vdcg_pulsewidth, int clock)
{
int err;
unsigned long data = DUMMY; /* only valid for divider and VDCG modes */
/* VDCG on 1st board (32 Bit), used as gate for CTRE, */
printf ("Setting VDCG to external/internal clock usage\n");
if (err = CTRSetOptions (SLOTISA_1, ONBOARD, CHANNEL_0, !INVERT_OUTPUT, !INVERT_CLOCK, !INVERT_GATE, DUMMY, clock))
return err;
printf ("Setting VDCG on 1st board\n");
if (err = CTRConfigure (SLOTISA_1, ONBOARD, CHANNEL_0, vdcg_pulsewidth, VDCG_MODE))
return err;
/* CTRE on 2nd board (32 Bit), event counting mode , signals from CLAM-analyser */
printf ("Setting CTRE options\n");
if (err = CTRSetOptions (SLOTISA_0, ONBOARD, CHANNEL_0, !INVERT_OUTPUT, !INVERT_CLOCK, !INVERT_GATE, DUMMY, DUMMY))
return err;
printf ("Setting CTRE on 2nd board to 32 bit signal measurement\n");
if (err = CTRConfigure (SLOTISA_0, ONBOARD, CHANNEL_0, &data, LCTR_MODE))
return err;
return 0;
}
int
set_bg (void)
{
int err;
int pulsesperburst_1 = PULSES_PER_BURST_1;
int pulsesperburst_2 = PULSES_PER_BURST_2;
/* BG in single shot mode, initially disabled by ’BGConfigure()’ call */