9.02
 bug correction in prog/epgen.f.  For stopping muon, 9.01 was ok but
for high ernergy muon, program stops.  (happens only if muon is incident).
This waw corrected.

9.01
phits cannot treate anti-proton/neutron.  Workaround 
is to use jam or dpmjet3 irrespectively of energy.
If jam/dpmejet3 is not available, error stop will happen.

Stopping muon capture treatment is more comprehensive

9.00
Light generation by scintillation and Cerenkov and ray tracing are
supported.


8.82
Molier scattring treatment was updated. 
It has effect for compound media of which
components has largely different Z values.
Say, the lateral spread of cascade for PWO shrinks.
For Pb, unchanged.


8.81
UserHook/FirstKiss/epicsfile contained wrong RecoilKeMin
(100 was given; but it must be 100.e-6 or 0).
For Air*0.98 type notation, the fordpmjet command
fails.  This was corrected.


uv8.80
A) Sternheimer's consts and related stuff were updated.
The effect:
 e+/e-. If an electron is injected to a thin layer
matter, effect is large:  5~8% decrease of <dE>.
If the cascade develops, effect becomes small.
For the total absorption calormeter, such as Calet, 0.5% level <dE> decrease
For the sampling calorimeter with thin sensors such as LHCf, 2~3% decrese

mu, (pi,p..):  dependent on material whether the old excitation energy
	is close to the new one or not.
	In the case of BGO at 2 GeV, almost no diff. at 150GeV, small
	diff.
	In the case of PWO at 2 GeV, diff. is rather large (~5%).

B) In older version, if we want to use a different density for the same
	media, we had to define a new media with such a density.
	From version 8.80, we can use different denstiy by giving
	the media name as, e.g, Air*0.904; which means Air with a density
	0.904 times smaller than the standard one.
 

uv8.78
QGSJET2 cannot accept lamda0 baryon.  This workaround is implemented
correctly in Cosmos 7.46,  7.47.
 (Older workaround was wrong).   The cross-section calculation
 in Epics  is independent of Cosmos so some modification is 
 introduced for lambda0. (Also for Sigma, Gzai baryons).

uv8.77
For compound material and hadron projectile, interaction cross-section
calculation has been updaed to be more sure. For example, the 
cross-section in SciFi will decrease a little bit.

uv8.76
Release Jul.09,2008
"fordpmjet config " now works even if config contains "#inc".
If #inc is used, Util/testCnf1.f is used to expand the config file
and resultant config file is modified and input to fordpmjet.
It will work both for sh and csh.
 

uv8.75
Release Feb.20, 2008
User defined parameters (epHooks etc)
are now placed only in sepicsfile. 


uv8.74
muon brems gamma has charge. This is not 
harmulf  for simulation, but corrected.

 
uv8.73
Release Jan.23, 2007
epics/ZepTrackp.h and crresponding BlockData
are not updated in the previous version. 
This was corrected.

uv8.72
Release Nov.24, 2007
IncGP to activate photo-production of hadrons
hase been not effective during some versions.
This is corrected.
The current version updated the  treatment of
photo-electric effect.  When Eg> Eshell,
a photo-electron of energy  Ee=Eg-Eshell+Me
appeares (same as older versions)  and at the
same time, characteristic X-ray  of energy
Ex=Eshell is generated (in this version).
(Currently, no Auger electron is included).
Also, if Eg > Kshell, all reaction is assumed
to be on Kshell but not L,M,.. shells.
This treatment is effective when bit 1 is 0
of Eabsorb in the epicsfile.   IF bit 1 is
1,  no Xray is generated and all the photon
energy is assumed to go into energy loss.


uv8.71
Release Jun 25, 2007
LPMeffect = f has not been  made effective 
because I forgot updating some stuff in 
prog/Elemag/ (8.68~8.70).
This was corrected.

uv8.70
Release May 21, 2007
Description of sepicsfile specification is made to be more clear.
They are given in sepics file of FirstKiss, a separate document
sepicsfileDoc.pdf and UserHook/Test-sepicsfile

Meaning of Cosnormal, normal vector, InputP='usph', etc is 
given clearly.  Confusing 'sph' and 'gsph' are now removed;
New specification 'u->sph', 'u->sph2',  'g->sph', 'g->sph2'
are introduced. Some explanation of how to specify the
incident by a file with "+" at its file name is given.

uv8.69
Release Apr 6, 2007
Bug fix done in uv8.67 led to another bug;
At config display, no selection by media becomes possilbe.
This was corrected.  (simulation itself is ok).
Default max number of components is made to be larger than
previous versions.

uv8.68
Release Mar 21, 2007
Now Excom1, Excom2, LPMeffect can be put in epicsfile as parameters.
The parameters in sepicsfile and epicsfile may appear in any order
(but for epHookc, epHooki and epHookr, better to put after epHooks)
If some are missing, default will be used.
See for meaning and defaults, see epicsfile in FirstKiss.


uv8.67
Release Mar 17, 2007
max subdetector name length 8-->16
printable number for components 4 digits --> 6 digits
wrong media name in  subdetector drawing corrected.


uv8.66
Release Jul.31, 2006
Xray  treatmen above 1keV is by XCOM.  XCOM gives upto 100GeV, but
we use it below 1MeV.  Photo electic effect angular distribution
is now more precise. This version needs Cosmos uv7.23 or later.

uv8.65
Release Jun.03, 2006
Gencol is enhanced so that the event-by-event changing collision
conditions can be treated. (collision angle, particle type, energy,
positions can vary event-by-event).
e+ anihilation cross-section is corrected. (old one was 2 times lower).
But almost no effect for almost all jobs.

uv8.64
Release Feb.19, 2006
SomeDir/AntherDir/+primary type primary input
is now ok. Last file's + is recognized.
ep_ecyl.f has a bug. fixed. 

uv8.63
Release Nov.26,2005
So far when an anti particle stops (typicall anti-proton; when
 it's mass  > min energy),
 a large value (length/beta=1.e8  cm) is added to the time.
This gives strange time value to the decendents when the
particle anihilates. We don't add any time for the
anihilation now.

uv8.62
Release Nov.23,2005

Particle tracking was made to be correct
in detector parts which are  rotated 180 degrees.

When an incident particle is exactly on the
surfaces of two adjacent cylinders,
wrong result might be obtained depending
on the particle direction and detector
configuration. This is corrected. 

A small bug in The e+ anihilation angle 
sampling is corrected.

Marble (CaCo3) is added as media. 

In the track record, "track.user", is
added which can be used by the user freely.
Util/Gencol/Gencol.f  particle generator
now add one additional quantity (
particle number counter; 1 is for highest
energy partiles ). This index is read by
the system as a track.user variable.


uv8.60
Release Nov. 6, 2005
Magnetic deflection in 'sp' may  result in
infinite loop. Also adding method of defection to the
old track was wrong in versions around 8.xx.
This was corrected.

uv8.55
Release Aug. 19, 2005
A routine epretTrack(n, aTrack, icon)
is added so that in combination with
 epgetTrack(n, aTrack, icon)
the user can modify particle track info.
already in the n-th stack region can be
modified. (n: n-th stack position,
aTrack: tarck in the n-th pos. 
icon: 0 OK, 1, NG).
Readme file in Util/Anime is updated.



 

uv8.54
Release Aug. 18, 2005
1) As incident particles, a file which contains particle
information can be specified by PrimaryFile in sepicsfile.
The file name must start with +. These features has been
implemented from uv8.11.  However, it has been difficult to specify
multiple particles as the incident partilces in one event.
This version supports such a case easily; one bunch of incident
partilces may be separated by a blank line.  To indicate that
multi-particles are incident, the file must contain 'mul' 
in the first line.  Then, for example, the first few lines 
may look like
#  mulsubKEdir
#--------------------
6 1 1 100.  0 0 1
4 1 -1 30   0.0903  0.1105 0.98...
4 1 -1 30   0.010   0.1050 0.99...

6 1 1 35   0 0.1 0.99
...

2)  Epics/Util/Gencol
is available;  the user can generate, say, LHC events, by
various models and make a file which can be an input
to the primary of Epics execution.



uv8.53
Relaese Jul. 22, 2005
The treatment in 8.51/2 was wrong. 8.50 has a problem with Pb for QGSJetII.
The last one was corrected.


uv8.52
Relaese Jul. 21, 2005
For Pb, sometimes A=208 may happen while A=207 is
the prefined  max; this leads to loop. and corrected.

uv8.51
Relaese Jul. 20, 2005
X-section treatmen for QGS-jet-II for complex media is corrected.
site.configPCLinuxIFC is modified so that LD contains -static
(for large memeroy)


uv8.50
Release Jul. 09, 2005
QGSJet-II is now available.
 
uv8.14
Release Jun. 11, 2005
When using drawConfig,r usenewvol or testtCnf1 (or ...) , unresolved reference 
mae result in. This is avoiided to move ep_bbox  etc in epbndry.f to ep_simpleb.f
New volume, ciecone (cut inclided eliptic cone) is made to be public.
This can be used to create pants.


uv8.13
Release May 24, 2005
Some confusion about splitted files etc led to
unresolved references. This was resolved.


uv8.12
Release May.15, 2005
eppush.f was missing in 8.11. 


uv8.11
Release Apr.29, 2005
Using cosmos generated partiles with +xxxx primary
file and InputP='usph' has some problem.  This was
updated.

uv8.10
Release Mar.28, 2005
'cos 1' sampling sampled 'cos -1'. corrected.
Util/Anime section is added to make a movie for
time development of cascades.


uv8.06
Escaping method from the synchrotoon semi infinite loop 
has been chaged to be more sure.

uv8.05
Loop due to the prolem at boundary  has detected and
corrected. (epgen.f  see do while(     .. n .lt. 10)

uv8.04
A long-standing  annoying problem which may happen at 
boundary of a component has been settled. Although
it is rare, the treatment so far is to stop 
execution.  The matter can be safely recovered now
so the execution can continue with some messages.

uv8.03
Particles made by Cosmos can be put to Epics easily.
Make a file which contains the particles; the file
name must start with "+", (say, +primary).
each line should contain at least code charge.  Additional
infomation for subcode, energy (TE or KE) , direction
cosines, time, position can be specified.  The first 2
lines shoud be, for example, 
#    TEdir
#-------------------------
which are followed by 
code charge  TE  dir
code charge  TE  dir
...

TEdir means that the file contains Total energy,
and direction cosines.  Other information is 
supplied by Epics  as in normal Epics run.


uv8.02
Release Dec.
Bug in the Geomview display routine was corrected.

The '=' notation in the shape attribute part
(say, length of 3 edges of a box)  is extended so
that the offset can be added after '='; for example

1  box SciFi  0 2 0 /   0.    0    0    0.1  0.5   0.1
2  box SciFi  0 2 0 / =0.1   =-0.1  =    =   =0.2   =
3  box SciFi  0 2 0 / =0.1   =-0.1  =    =   =0.2   =
4  box SciFi  0 2 0 / =0.1   =-0.1  =    =   =0.2   =

will produce configuration like (=0.2 above couldn't be
used in the previous versions):


      |
     ||          
    |||          
   ||||          
   ||||             
   ||||             
   ||||          
   ||||          
    |||          
     ||          
      |
     

epExpot.f is modified so that Absoft Fortran on Mac OS X can compile it.
( array  index must be scaler for Absoft Fortran on Mac OS X; i.e,
	x( abc.xyz.I )
is not permitted so that we must   use 
	i = abc.xyz.I 
	x( i).

Some gramatically ileagal (but compiled correctly) statements are
corrected.


 
uv8.00
Release Jun.23, 2003
Pair creation cross-section default is fixed to be Nelson's one.
It gives higher cross-section for larger Z and at low energyies
as compared to the Tsai's formula.However, it has a glitch
at 50 MeV; this glitch is unnatural so that we put an ad-hoc
smooth transition from 7 MeV to 70 MeV.
Muon single peak position was evaluated 5 % lower than the
correct one and this was fixed.  (For Pions and protons
the same is true).   The electron case is almost unchaged.
Cross-section table is enlarged by factor 2 or more.
This has almost no effect on the cascade development,
but if you make a simulation at a fixed energy and
see the distribution for, say, brems, we may see
a little bit smoother result.
According to this, all Media table have been 
updated.



uv7.24
Release Apr.20. 2002
Geomview display interface is made to be much faster and compact.

The error message issued when a new volume shape is used without 
having used 'usenewvol' command in Util has been made to be
more comprehensive.


uv7.23
Release Apr.02, 2002
If the random number seed  Ir(2) in sepicsfile is negative, the seed is
reset by using the timer and the hostname as in the case
of Cosmos.

uv7.22
Release Mar.25, 2002
The menu 8 of drawconfig dose not work correctly due to the problem
of integer*2 and integer corrected in uv7.21.
Complex config is now completely processed.
Too many IFC warinig is now suppressed.


uv7.21
Release Mar.13, 2002.
On some platforms, Util/drawConfig.f cannot be compiled.
due to th error of type max(integer*2  integer) so
ZepDraw.h  was corrected; integer *level* single variables are
made to be integer*2
Also, write(msg, '(i,a,a)') is not usable ; it was
changed to write(msg, '(i5, a, a)') 
some command invocation is changed to have ./ before the
comand name.

uv7.20
Release Feb.28, 2002.
config with subdetectors deployed lateral directions
are not properly treated. (say, YBarray). corrected.

IFC support.

Geomview support.



uv7.10
Releas Jun. 18, 2001
For pcLinux, we use f90 instead of f77. This is to make
compatibility with Cosmos which must use f90 for pcLinux.

All of the following statement must be modified like below.

  record /media/  ---> record /epmedia/
  recore /move/   ---> record /epmove/

All of temp*.f generated by cpp are kept in the same
directory as the current program being compiled.
If you want to remove these, issue 
       make veryclean


uv7.00
Release May 20, 2001
1) dpmjet3 is supported.  Cosmos.uv6.00 or later must be used.
2) array usage is optimized so that the large number of detectors
   can be contained in a configuraition.
 For details, see new appendix.
3) PC Linux can be used with Absoft Pro Fortran.


  
uv6.60
Releas Sep.15, 2000
1) Bug fix for wrong deployment of epmoller.f and epbhaba.f. Those
   in Epics/Util/Elemag/ are the correct ones. They
   should, however, be  in prog/Elemag.
   Effect is small, but in uv6.4 ~6.50  the first event may look strange.
2) The main Makefile is modified to make the ingredients
   in Epics/Util/DrawNewVol automatically.
3) Dobuly defined implicit none in Util/DrawNewVol/epDraw_ellips.f
   is corrected. (some system is not aware of it).
4) nvtx in Util/DrawNewVol/epDraw_csph.f confilict with
   NVTX in a common (some system disregards the capital and small
   letters). nvtx--> nvtxx
5) At very low energies ( Ee ~ Me),  Selzer brems formula is
   used. The calling sequence for energy sampling is missing
   the mass term and the spectrum becomes strange. This was
   corrected.  The effect is also very small except for that
   the user is looking for brems gamma for low energy electrons.
6) prog/KKlib/kbetar.f is no more needed. It is in Comsos library.
   But it is  kept.
7) After 'mkNewVolume config', no more make is needed in Epics home;
	it is automatically done.
8) Some irrelevant comment about  Trace file open in epicsfile is
   removed.

uv6.50
Release Aug.11, 2000
New manual has been ready together with a descripiton of
newly defined 21 volume-shapes.
A bug correction when a one line of config file  has > 100 characters.

uv6.22
Release Jul 17, 2000
Some minor correction for mkNewVolume. Template for 'no new volume' was
error. prog/epNewVol.f contained two new volume-shames. It is 
replaced by the one without newvolume.


uv6.21
Release Jun.29, 2000
Some correction for site.config etc



uv6.20
Release  Jun.26, 2000
This version supports Alpha Linux two ways. See Readme in Cosmos/Version.

 
uv6.10
Release  Apr.20, 2000
Restricion for the number of volume attributes are now
dropped.  There is some change in usage of the eprpst subroutine
and how to use the volume attributes. These must be considered if
the user makes new volume-shapes.  Bug fix when a first
component is inclided one.   A number of new volume-shapes are
supported. They are in prog/NewVol (subs for tracking) and
Util/DrawNewVol (subs for drawing). 


uv6.00
Release Mar.10, 2000
1) A very large number of componets can be accomodated with an efficient
   use of arrays.   Default setting is for approx. ~10^4 comps.
2) New volume-shape, gcyl and horse are available for use.
   gcyl:  general cylinder which permits the starting and ending angles.
   horse: vaulting horse volume. including a triangular pyramid as a
	special case.
   Default number of volume attributes is 10. (old one was 5).
   
3) The user need not worry about "Maxpath" part in the configuration 
   file except for very special cases.
4) Supplemental manual is prepared.


uv5.30
Release Feb.20, 2000.
1)Bug correction.  Sampling table (m.f.p) of compound material such as
  H2O,  Air etc was wrong for energy approximately above 80 GeV where
  the LPM effect becomes not negligible.  (m.f.p was too short, and
  showers with a high energy cut are ~1 r.l shifted to the shallower
  depth.  All related tables were corrected, and table making routines
  were corrected.
2)After making tables, older version made the table unwritable.
  This was ceased.


uv5.20
Release Feb.15, 2000.
1) some of the epicsfile parameters are changed.
2) sepicsfile can contain userdefned parameters.
3) sepicsfile has new parameters to ease the incident
   beam position setting.
4) Eabsorb in sepicsfile are modified so that a various
   treatment is possible  when a  particle energy
   becomes lower than the threshold,
5) moller scattering is refined.
6) bug in config file treatment (the last comp. must be
   world in v5.18) is removed. 

 
uv5.18
cqHookr has read real variable as integer; corrected.
Made to be compatible with Cosmos.uv.5.20
New material (Bakelite, Acrylic, Hollow) added.
Bug in G5 table corrected.

uv5.17
Release Aug. 10. 1999
When drawconfig is used to print the configuration info.
and if the many components are contained by the world,
the print area shortage is detected in eprcnf.f
This is corrected (but not perfect).


uv5.16
Release Jul 19 1999
Bug correction for epicsfile input parameter
placed last part (=epHooks).
Change of distjob function so that it 
puts epHooks ='1 0 0' and and epHookc(1)
=' path to the main output file'. This will
enable ephook.f to handle the main output
file by some number other than  sysout.


uv5.15
Release   Jul 3. 1999
 InputP ='gxy' was not acceptable. corrected
 sqrt( -eps ) problem in epanihi.f was corrected.
 dedx in the Lindhard region is treated more 
 accurately.  Its treatment for non electons 
 was buggy and corrected.
 For the stopped  particles, energy loss is
 doubly counted.  For the stopped particles,
 we don't call userde now.

uv5.10
Release Jun 08, 1999
There is still very rare hapening of error
(something like  'boundary error')
by a stopping annihilating or decayable particle.
It is so rare that we decided to neglect it without
issuing the message.  If the particle is still moving,
the error is not neglected and 	the messages are issued
and the  system will stop.


uv5.07
Release Jun 03, 1999
Cosmos treatment about charge conservation sometimes
neglect the difference between the pic and pi0 mass.
This might lead to inconsistent direction cosine 
assignment at very low energy and cause boundary error.
This was corrected.  Knockon electron direction is
corrected.

#do
...
...
#end 
in config file is supported so that it is easy to make 
repeated structure.  This must be processed before it is
processed by epics.   That is, for example
  expando configwithDo > config
Beside InputP='uxy', 'uxy2' is introduced to make it easy
to give the particle direction.  Some inquiry sub.s are
introduced to get info. about config.

uv5.05
Release May 11, 1999
In many cases, fingures by drawconfig are felt to be upside down.
So drawconfig now has a mode to draw the detector configuration inverting
Z-coordinate and you can look it as you expects.  In this mode,
cascade tracks are also automatically z-inverted.


uv5.04
Release May 08, 1999
drawconfig in some system cannot be compiled with default compilation
options. (There are the same variables in ZepDraw.h and Zcnfig.h
if disregard the difference between lower and upper characters).
This was fixed.  There was also some undefined record in drawConfig.f
and fixed. Cosmos main program was excluded from its library and
now compilation of drawConfig has no problem.
New parameters that can be used by the user are introduced.
They are epHookr, epHooki, epHookc (real*8, integer, character*100)
They are arrays with size 10,10,5 in default.
They must be placed at the end of epicsfile. See Template


uv5.03
Release May 03, 1999
When drawconfig writes config data, now comment can be
printed out. This mode can be made to be on/off by putting
#com 0 
or 
#com 1
in the config file. (0 for off). Default is on.
The commet here is the line starting with  #, c or !, 
or one with 5 blanks at head. (#eq, #news, #subd #com are not
comment line).  /*  */ is not included as comment.
Manual was updated.

---------------------
Apr 29, 1999  uv5.02
prog/Mu/epRdmuTab.f
There are two implicit none in the top part and
it makes error in DEC Alpha.

#eq for integer value result in wrong result.
   (  CountIO and CountdE affected. )
     correction has been made.


Apr 28, 1999  uv5.01
Some system cannot understand vpath in ephook.mk so
ephook.f is changed to contain #incldue "../main.f"
vpath and main.o is droped in ephook.mk

prog/eprcnf.: In the part that write config dsn,
msg is too short in some system so that 
some change.




Apr 26, 1999  uv5.00
 Subdetector can be drawn separately
 Cleanup everything.


Mar 19. 1999  uv4.98
 Almost all are implemented.
 NewVolume definition etc.
 Manual is not yet completed.

Jun. 15.1998  uv3.91
  carbon is added with density 2.2 g/cm^3

Jun. 13 1998  vu3.90
 Some bug fixes (negative sqrt etc).
 The path to the parameter file names can be longer than
 previous. This is for Distjob.
 CsI density corrected.
 Air and H2O supported.

Mar. 26 1998  uv3.82
  More refined boundary check error. Density was wrong for scinti.
 
Mar. 24 1998  uv3.81
  No mseeage for safe boundry set error;
Mar. 21 1998  uv3.80
  A  robust version has been reached.
  Numerical presion error will probably never happen. Even if it
  happens, correction is automatic.

  Boundary set error may happen very rarely, but the job can continue
  by discarding a particle which is a stopped e+/p+ at the edge of
  a chamber.  

  Landau/Vavilov/Gaussian energy loss fluctuation is now available
  for use.  It is used when 2 is given for energy loss counting 
  in the config file.  

  Moliere scattering routine is changed to use a version in 
  the Cosmos library.

Oct. 16 1997  uv3.73
  External names related to the old Lund Fritiof  was
  changed in Cosmos so that they have been changed in epics, too.
  Some dummy subroutines are necessary to avoid unresolved
  external names (which are some subrouitnes in Cosmos).
  They are added in ephook*.f
  cppFCDECALPHA2 is corrected to work for Digital unix.
Mar. 13 1997  uv.3.72
   Numerical precision error may be killed by upgrading
   kklib.f.  E < mass in epcosIntF.f is eliminated.

Nov. 05 1996   uv3.71 Release.
  BGO is supported as as medium.


Jun. 23  1996   uv3.70 Release.
 1)  In the ephook.f,  a user interface routine "uafi1ev" is added so that
  one can gain the control after all the initialization for an event
  has been finished.  One must add
 
       subroutine uafi1ev 
       end
  if one uses existing one's own hook routine.
 2) In userbd, one can  use (xbndry, ybndry) in Zuser.h for the boundary
    (x,y) coordinates of a particle when it enters into or exits from
    a component.
 3)  In  prog/Sepics/main.f,  "external ebplkde" is correccted to be
  "external  epblkde".  DEC alpha detected this. 
 4)  compa in Elemag/gbrems.f is corrected so that DEC alpha does not
     produce error (save statement)
 5) site.configDECALPHA2 is usable for DEC alpha, digital unix O.S

----------------
Jan. 05  1996   uv3.60 Release. 
  1)  You may put 2 instead of  1 for particle counting specification; 
      in this case, counting is performed when a particle goes out of a
      given component.  Note when you give 1 for the component where
      the incident particle  is given, the incident particle is not
      counted as entering that component. It is in that component from
      the first.
  2)  chookTrace.o  sometimes  appeared as an  unresolved external reference.
      This is bypassed by putting dummy subroutine  chookTrace in the
      epcosIntF.f  Therefore if the user wrote such a  dummy routine in
      his/her UserHook program, he/she must drop it.
  3)  Epics sometimes stops its execution with the message 'boundary set 
      error':  This can happen when a particle crosses the boundary of one
      component to another due to the finite accuracy of computation.
      This may be controlled by giving  some value to a new Epics 
      parameter, EpsLeng, which is in the last place of EPICS file.
     (see, Data/Param/EPICS). The default value is 10^-4 cm (1 micron
      meters).  You may try to change this to a smaller  or larger values
      by a factor of 3~10 or so.  	
  4)  When the critical energy is low such as in Pb, and minimum energy
      for observation
      is much lower than the scattering energy, the number of particles
      (electrons) for inclined incident showers becomes larger than the one
      for vertical showers. (say 20 ~ 30 for 45 degrees).  This seems
      to contradicting to naive expectations. However, this is a valid
      characteristics of such showers and confirmed before the release
      of this version.
                                 

Jun. 13  1995   uv3.50 Release.  In the prvious version, there were bugs
                                 of trace information output and time
                                 data.  Also, hadron incident showeres
                                 were not correctly treated. 
Jun. 3   1995.  uv3.46 Release.  a bug that results in "numerical precision
                                 error" has been corrected.  
                                 Bets config with 10 GeV protons with
                                 cos = 0.5 to 1.0 has been tested against
                                 30000 events. No error detected.
May. 21  1995.  uv3.40 Release.  fatal bug that no energy loss count in 
                                 a thin layer is corrected.
Mar. 18, 1995.  uv3.39 Release.  some delicate problems about geometrical
                                 relation have been updated.
	                         10000 0.5GeV electrons tested with BETS
	                         chamber with Emin=100 keV.

Mar. 17, 1995.  uv3.34 Release.  xyzton.f has two bugs.  drawConfig.f has 1 bug
	                         These have been corrected.
Mar. 9, 1995.   uv3.31 Release.  + in Z field has bug.  fixed.  vn command 
Mar. 1, 1995.   uv3.3  Release.  
