[gate-users] Re: gate-users Digest, Vol 18, Issue 22

[Christian Wietholt]

Dear Ananth, 

A couple of weeks ago, I posted a similar problem about a discrepancy between
the documentation of the ASCII file format and the actual GATE output. I probably 
won't be able to answer you exact question, but maybe give you some pointers. 
I wanted to extract the X,Y,Z position of each single from gateSingles.dat, but found 
out that columns 12, 13, & 14 contain this information, and not 15, 16, & 17 as 
documented in the User's Guide.

My thought is, that columns 4, 5, & 6 are probably not in the actual output file since 
they seem to be PET related, that would explain the shift. Maybe a copy and paste 
error in the user's guide? But I am not sure, nevertheless, there are 20 columns in
the file, as there are 20 coulmns described in the User's Guide.

I was thinking maybe with the input of other GATE users, we could correct the mistake
in the User's Guide. Also, to find out which column contains the information I need, 
I went through the source code benchmark_projections.c. This might be a possible 
starting point for you to retrieve the information you need from gateSingles.dat.
I hope I was able to help you in finding the needed information from the ASCII file. 

Best of luck, 

Christian
> ------------------------------
> 
> Message: 2
> Date: Mon, 26 Sep 2005 10:57:12 -0400
> From: "Ananth Ravi" <ananth.ravi at sw.ca>
> Subject: [gate-users] ASCII gateSingles.dat
> To: "GATE feedback and helpline for Users"
> 	<gate-users at lphe1pet1.epfl.ch>
> Message-ID: <003c01c5c2aa$9374c760$0b1e4c8e at compton>
> Content-Type: text/plain;	charset="iso-8859-1"
> 
> 
> Greetings,
> 
> I am in the process of analyzing the results from my simulation but have
> run into a stumbling block.  Upon referring to the GATE users manual I
> find that the format for the gateSingles.dat file does not align with my
> output file.  In particular I am concerned with the columns that provide
> information on the number of Compton interactions.
> 
> I am enclosing 6 lines from my output.  I would like to know why there
> are two columns with names of the phantoms where interactions occur and
> where I can find the true meaning of the four columns instead of 2 for
> Compton interactions.
> 
> 
> Thanks,
> Ananth Ravi
> 
> 0   14015    16  5.624e-01 -1.480e+01 -2.018e+02     4     0    0
> 2.35160119005865270e-06  2.217e-02  1.104e+01  7.867e+01    -5.624e+01    1
> 0    0    0    breast_48_P NULL
> 
> 0   67212    76 -1.487e+00 -2.049e-01  3.463e-02     3     0    0
> 1.12583029238266680e-05  1.995e-02  4.731e+01  1.336e+01    -4.022e+01    0
> 0    0    0    NULL NULL
> 
> 0   78522    42  5.035e+00 -1.984e+01 -2.121e+02     4     0    0
> 1.31665734173921830e-05  2.100e-02  8.894e+00  7.980e+01    -5.706e+01    1
> 0    0    0    breast_37_P NULL
> 
> 0   78659    71  1.514e+01 -1.482e+01 -2.218e+02     3     0    0
> 1.31890446875141700e-05  1.999e-02  4.429e+01  1.032e+01    -4.069e+01    1
> 0    0    0    breast_28_P NULL
> 
> 0  142498    55 -2.540e+01  5.180e+00 -2.220e+02     4     0    0
> 2.38831316603839590e-05  2.041e-02 -1.742e+01  9.391e+01    -6.631e+01    3
> 0    1    0    breast_42_P breast_54_P
> 
> 0  166159    64 -4.787e+00 -5.009e+00 -2.219e+02     3     0    0
> 2.78652170868758280e-05  1.789e-02 -5.200e+00  1.724e+01    -4.162e+01    1
> 0    0    0     breast_28_P NULL
> 
> ------------------------------
>