[u/mrichter/AliRoot.git] / PHOS / PHOS-HTML / fastsimulation.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
               "http://www.w3.org/TR/REC-html40/loose.dtd">
<html>
<head>
   <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
   <meta name="GENERATOR" content="Mozilla/4.51 [en] (X11; I; Linux 2.2.5-15 i686) [Netscape]">
   <title>PHOS FAST SIMULATION Proposal</title>
   <!-- Changed by: Yves Schutz,  7-Dec-1999 -->
<link REL="stylesheet" href="http://www-subatech.in2p3.fr/~photons/gps_alice.css" type="text/css">
</head>
<body>


    <h1>
      PHOS Fast Simulation 
    </h1>
    At the Offline meeting held during December 1999, it was decided
    that each sub-detector makes a Use Case for a fast simulation scheme. Here is what we suggest for PHOS.
    <P>
    <center>
      <a href="./images/usecasefastsimulation.eps">
      <img SRC="./images/usecasefastsimulation.gif" ALT="[Use Case for fast simulation]" height=425 width=483>
      </a>
      <p>
	<b> Figure 1.: </b> <i>Use Case for fast simulation. Only PHOS is implemented. Other detectors are ignored. 
	  Click on image for full scale</i>
      </p>
    </center>
<P>
This has been implemented in a new class <a href="./html/AliPHOSvFast.html"> AliPHOSvFast </a> ( <a href="./html/AliPHOSvFast_Tree.ps"> 
inheritance tree </a> ). The synopsis goes as follow :
<br> <br>
<pre class="code">      
      AliPHOSvFast::AliDetector
      
      <b>CreateGeometry() </b> {

       describes the coarse outline of PHOS as 5 boxes }

      <b>StepManager()</b> {

       when particle reaches PHOS {
         stop the tracking
         modifiy the attributes (energy, momentum, type) of the primary particle according to the PHOS response
         construct a "virtual" reconstructed particle }
       save the reconstructed particle in a list }

      <b>FinishEvent()</b> {

        write the list in TreeR
        write the TreeR to file }
</pre>
<hr>
<address class="left">
&copy; <a href="mailto:schutz@in2p3.fr">Groupe Photons Subatech</a> <a href="http://www-subatech.in2p3.fr/~photons/subatech/en_index.shtml">[Go
to the GPS Home Page]</a></address>

<address class="right"> 
<!-- Created: Tue Oct 26 19:52:56 CEST 1999 -->
<!-- hhmts start -->
Last modified: Fri Mar 24 09:10:01 CET 2000
<!-- hhmts end --></address>

<!-- <div align=right><a href="http://validator.w3.org/check/referer"><img SRC="vh40.gif" ALT="Valid HTML 4.0!" BORDER=0 height=31 width=88></a><a href="http://jigsaw.w3.org/css-validator"><img SRC="vcss.gif" ALT="Valid CSS!" BORDER=0 height=31 width=88></a></div>-->

</body>
</html>
Commit	Line	Data
65163b68	1	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"
	2	"http://www.w3.org/TR/REC-html40/loose.dtd">
	3	<html>
	4	<head>
	5	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
	6	<meta name="GENERATOR" content="Mozilla/4.51 [en] (X11; I; Linux 2.2.5-15 i686) [Netscape]">
	7	<title>PHOS FAST SIMULATION Proposal</title>
	8	<!-- Changed by: Yves Schutz, 7-Dec-1999 -->
	9	<link REL="stylesheet" href="http://www-subatech.in2p3.fr/~photons/gps_alice.css" type="text/css">
	10	</head>
	11	<body>
	12
	13
e126816e	14	<h1>
	15	PHOS Fast Simulation
	16	</h1>
	17	At the Offline meeting held during December 1999, it was decided
	18	that each sub-detector makes a Use Case for a fast simulation scheme. Here is what we suggest for PHOS.
	19	<P>
	20	<center>
	21	<a href="./images/usecasefastsimulation.eps">
	22	<img SRC="./images/usecasefastsimulation.gif" ALT="[Use Case for fast simulation]" height=425 width=483>
	23	</a>
	24	<p>
	25	<b> Figure 1.: </b> <i>Use Case for fast simulation. Only PHOS is implemented. Other detectors are ignored.
	26	Click on image for full scale</i>
	27	</p>
	28	</center>
65163b68	29	<P>
e126816e	30	This has been implemented in a new class <a href="./html/AliPHOSvFast.html"> AliPHOSvFast </a> ( <a href="./html/AliPHOSvFast_Tree.ps">
b2a60966	31	inheritance tree </a> ). The synopsis goes as follow :
	32	<br> <br>
	33	<pre class="code">
	34	AliPHOSvFast::AliDetector
	35
	36	<b>CreateGeometry() </b> {
	37
	38	describes the coarse outline of PHOS as 5 boxes }
	39
	40	<b>StepManager()</b> {
	41
	42	when particle reaches PHOS {
	43	stop the tracking
	44	modifiy the attributes (energy, momentum, type) of the primary particle according to the PHOS response
	45	construct a "virtual" reconstructed particle }
	46	save the reconstructed particle in a list }
65163b68	47
b2a60966	48	<b>FinishEvent()</b> {
65163b68	49
b2a60966	50	write the list in TreeR
	51	write the TreeR to file }
	52	</pre>
65163b68	53	<hr>
	54	<address class="left">
	55	© <a href="mailto:schutz@in2p3.fr">Groupe Photons Subatech</a> <a href="http://www-subatech.in2p3.fr/~photons/subatech/en_index.shtml">[Go
	56	to the GPS Home Page]</a></address>
	57
	58	<address class="right">
	59	<!-- Created: Tue Oct 26 19:52:56 CEST 1999 -->
	60	<!-- hhmts start -->
e126816e	61	Last modified: Fri Mar 24 09:10:01 CET 2000
65163b68	62	<!-- hhmts end --></address>
65163b68	63
e126816e	64	<!-- <div align=right><a href="http://validator.w3.org/check/referer"><img SRC="vh40.gif" ALT="Valid HTML 4.0!" BORDER=0 height=31 width=88></a><a href="http://jigsaw.w3.org/css-validator"><img SRC="vcss.gif" ALT="Valid CSS!" BORDER=0 height=31 width=88></a></div>-->
65163b68	65
	66	</body>
	67	</html>