Hello Adrian,
The size and distribution of you target depends upon the input
parameters in your fort.3* file. for example,
VERT 2 0. 0. -20.0 0. 0. 40.0
means that I am using vertex generator 2
which then means it is uniform 0. < x < 0. + 0.
0. < y < 0. + 0.
-20. < z < -20. + 40. = +20.
All the different vertex generators are in the subroutine KIVERT located
in the file "blast_proc.f" . There is a good explanation in the top of
that subroutine which is below.
Tim
____________________________________________________________________
Timothy Paul Smith Assistant Research Professor
still using my MIT email for now -> tim_smith@mit.edu
Dartmouth College
Department of Physics and Astronomy
6127 Wilder Lab.
Hanover, New Hampshire 03755
=============================================
C ******************************************************************
C * SUBROUTINE: KIVERT *
C * FUNCTION: Generates vertex coordinates according to the data *
C * card VERT. The format of the data card is: *
C * VERT IFFVER FFVERT(1) FFVERT(2) FFVERT(3) ... *
C * The first parameter (IFFVER) gives the type of *
C * vertex distribution: *
C * IFFVER = 0: (default vertex style) Distributed *
C * with a triangular z distribution *
C * 40.0cm long and a flat distribution *
C * in r and theta out to 0.5mm (1.0mm *
C * in diameter for the beam X target *
C * profile). *
C * IFFVER = 1: Normal distribution centered at *
C * (X, Y, Z) = (FFVERT(1), FFVERT(2), *
C * FFVERT(3)) and having (SIGMAX, *
C * SIGMAY, SIGMAZ) = (FFVERT(4), *
C * FFVERT(5), FFVERT(6)) *
C * IFFVER = 2: Uniform distribution such that: *
C * FFVERT(1) <= X <= FFVERT(4) *
C * FFVERT(2) <= Y <= FFVERT(5) *
C * FFVERT(3) <= Z <= FFVERT(6) *
C * IFFVER = 3: Uniform distribution within a tube *
C * of radius FFVERT(1) and of length *
C * FFVERT(2) in z direction, centered *
C * at FFVERT(3,4,5) in Cartesian *
C * coordinates *
C * IFFVER = else: The point origin is the origin *
C * CALLED BY: GUKINE *
C * AUTHOR: M. Guckes (July 1986) *
C * M. Guckes (October 1987) *
C * A. Maschinot (July 2002) *
C * commented, corrected, and updated for the BLAST *
C * 2002 experiments *
C ******************************************************************
SUBROUTINE KIVERT(NVTX, UBUF, NUBUF)
On Thu, 5 Sep 2002, Adrian T Sindile wrote:
> Hi, Jason, everybody!
> Before leaving on vacation, I left Tancredi a couple of CODA files (Monte
> Carlo generated).
> He told me that it was possible that I did not have the extended target.
> To the best of my knowledge, that has always been hardwired (with the
> corresponding triangular distribution). I will also look at my code and
> doublecheck, but Tancredi suggested I contact you.
> If anybody knows otherwise about the extended target, please let me know!
>
> Adrian
>
> -------------------------------
> Adrian Sindile
> Research Assistant
> Nuclear Physics Group
> University of New Hampshire
> phone: (603)862-1691
> FAX: (603)862-2998
> email: asindile@alberti.unh.edu
> http://einstein.unh.edu/~adrian/
>
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