EDIT2013

This README for DAQ and ROOT macros used in EDIT2013 NEU course.

• Author : Shota TAKAHASHI
• Created : 2013/03/12
• Modified : 2013/03/12

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INDEX

1. How to obtain samples
2. What's inside
3. How to take data
   • Save data
   • Overwrite data
   • Change ADC channels
   • Install CAMAC driver
4. How to make plots
   • Chang branch descriptor
5. How to use USB

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1. How to obtain samples

Just download "sample.zip" and expand it in any place you want.

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2. What's inside

• daq/ --- DAQ programs
• data/ --- data
• macros/ --- ROOT macros
• plots/ --- save plots here if neccessary

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3. How to take data

DAQ programs are in "daq/" directory. Move to this directory first. Then execute program named "adc" or "multiadc". You need to specify NEVENT (event number) and OFN (output filename) as arguments. Output file is created in space-separated-text format.

$ cd daq
$ ./adc NEVENT OFN (additional info).

If you run without any argument, usage will be printed.

$ ./adc
    # (--> usage will be printed)

ADVANCED

You can also set additional arguments if you want, like below

$ ./adc NEVENT OFN MPPC_ID BIAS_VOLTAGE

Save data

It is REALLY important to name data with easy-to-remember-and-handle convention. (If you named "test1.txt", "test2.txt", ... and so on, you will get depressed when you came back to check data next week.)

My favorite way is to separate data by day (it depends on purpose, though).

I prefer OFN to be named like "../data/YMD/ANYTHING%03d.txt", where

• YMD --- date (YYYYMMDD format)
• ANYTHING --- any words you want
• %03d --- run number, this makes easy to use ROOT macros below.

Overwrite data

DAQ program has non-overwriting feature to prevent ACCIDENTAL overwriting.

If you want to overwrite, remove the file before running DAQ.

$ ./adc 100 SAME_NAMED_FILE
   --> Error: 'SAME_NAMED_FILE' already exists.
$ rm SAME_NAMED_FILE
$ ./adc 100 SAME_NAMED_FILE

Change ADC channnels

Number of ADCs and its channels are defined as variable(array) named "ModId" and "ChId" in adc.cc(multiadc.cc). Modify these numbers and re-compile.

$ emacs adc.cc
$ ...(edit adc.cc)
$ make

Install CAMAC driver

If you restarted PC for some reason, you need to install CAMAC driver before excecuting DAQ. (You need superuser privilege)

We use "camdrv" for CAMAC driver. The driver is is /opt/hep/kinoko/drv/camdrv/.

$ cd /opt/hep/kinoko/drv/camdrv
$ sudo make install    # (ask password to lecturer)
$ sudo dmesg

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4. How to make plots

ROOT macro demos are in "macors" directory. Move to this directory first. Start ROOT CINT and load MACRO. Then execute samples as below.

IMPORTANT NOTICE

These are just simple demos. I encourage you to look into the codes and improve it, or make your own. ( If you know ROOT, you can do it =D )

mppcTest.C : Check a histogram

The function "histText" is defined to return TH1D*.

You need to create TH1D* and draw histogram.

$ root
root[] > .L mppcTest.C
root[] > TH1D *h1 = histText("h1", "../data/20130305/mppctest001.txt")
root[] > h1->Draw()

adcCalibration.C : Check three adc data at once

The function "histText" is defined to return TCanvas*.

You need to create TCanvas*. (Canvas will be drawn automatically)

$ root
root[] > .L adcCalibration.C
root[] > TCanvas *c1 = histText(32)

tracker.C for : Show eventdisplay

You don't need to load tracker.C, just type

$ root tracker.C

or, in case you want to start from certain run number,

$ 'root tracker.C(3)'

Change branch descriptor

All macros use method "TTree::ReadFile(FILENAME, BRANCH_DESCRIPTOR)" to create TTree from text file. If you changed orders or number of columns of output text format, modify BRANCH_DESCRIPTOR as needed.

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5. How to use USB

Unfortunately, PCs used in EDIT2013 does not mount USB automatically. So please mount USB manually.

$ dmesg
$ su
$ sudo mount /dev/sdc1 /mnt/usb    # or /media/usb
$ ls /mnt/usb
$ ... (sudo rsync or cp files)
$ sudo umount /mnt/usb