Message: Re: How score Kinetic Energy? Not Logged In (login)
 Next-in-Thread Next-in-Thread
 Next-in-Forum Next-in-Forum

None Re: How score Kinetic Energy? 

Forum: Biasing and Scoring
Re: Question How score Kinetic Energy? (lu luo)
Date: 05 May, 2010
From: Tsukasa Aso <Tsukasa Aso>


 As you described, current command-based scoring does not provide a scorer for
directly accumulating particle's kinetic energy. 

 The command-based scoring ( using Primitive scorers ) are designed 
to accumulate physics quantity, so that you can not know/extract individual 
track information from the result. 
(Of course, you can do everything with SensitiveDetector/Hits by developing
those by yourself. )

 I understood that you want to know the 'accumulated' kinetic energy
of gamma which enter the cell. Under the assumption that there is no
effect from Compton scattering and e+e- pair production, it may be obtained
( or approximately estimated ) by using trackLength scorer.

/score/quantity/trackLength   trkL  true  false false
gives an accumulated "pure" track length.

/score/quantity/trackLength   trkLwKinE  true  true false
gives an accumulated track length with multiplying its kinetic energy,
i.e.  trkL * Kinetic-Energy.

Therefore, you can calculate the accumulated kinetic energy by
dividing trkLwKinE by trkL. 

Of course you have to apply "gamma" particle filter as a SD-filter to 
avoid contributions from secondary electrons.The secondary gammas are
also encountered.
 Be sure that this is correct under above assumptions.

Alternatively, you may obtain kinetic energy spectra using 
Please look at
as an example.

Best regards,
Tsukasa Aso

Inline Depth:
 1 1
 All All
Outline Depth:
 1 1
 2 2
 All All
Add message: (add)

1 Sad: Re: How score Kinetic Energy?   (lu luo - 06 May, 2010)
(_ Ok: Re: How score Kinetic Energy?   (lu luo - 07 May, 2010)
 Add Message Add Message
to: "Re: How score Kinetic Energy?"

 Subscribe Subscribe

This site runs SLAC HyperNews version 1.11-slac-98, derived from the original HyperNews