Radiation scan at MB96 GIF test beam

The current absorption of the chamber with the different absorption filters was measured
reading the values from the H.V. distributor.
The measured values are stored in special binary files identified by the run number.
If you want to get the data files send  me a message.
Here is an example program, showing how to read the binary files, according
to the platform you are going to use.
readhvHP.c if you are on HP-UX, Solaris, OS9.
readhvDEC.c if you are on OSF.
readhvLINUX.c if you are on Linux.
Use command readhvXXX runnumber to display contents of file in ASCII format.


Summary of the data taken:
 
  absorption filter
Voltage 10 20 50 100 250 500 oo
3300 2616 2621 2627 2634 2640 2683 2657
3350 2617 2622 2629 2635 2641 2684 2658
3400 2518 2623 2630 2636 2642 2687 2660
3450 2619 2624 2631 2637 2643 2689 2661
3500 2620 2625 2632 2638 2644 - 2690
3550 - 2626 2633 2639 2645 - 2691


Data structure:
for each readout operation data is written according to this format:
9 int: time information using struct tm format (see <time.h>)
1 int: number of  H.V. channels read (channels ON)
1 short: H.V. channels address. board address=(data&ff)>>8
                                                  chan   address=(data&ff)
for each channel:
1 float: voltage value read in V
1 float: current value read in µA

H.V. channels were assigned in this way: H.V. channels map


If you want to have a look at a sample of data (HV channel sl1_a1w1) click  here