[Alert_collaboration] [EXTERNAL] Fwd: alert geometry in GEMC

[Raphael Dupre]

FYI 

--- 
Raphaël Dupré 
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie 
CNRS - IN2P3 
Université Paris-Saclay 


De: "Maurizio Ungaro" <ungaro at jlab.org> 
À: "Raphael Dupre" <dupre at jlab.org> 
Cc: "Mathieu Ouillon" <ouillon at jlab.org>, "Whitney Armstrong" <whit at jlab.org>, "Michael Paolone" <mpaolone at nmsu.edu>, "Nathan Baltzell" <baltzell at jlab.org> 
Envoyé: Mardi 3 Juin 2025 17:16:06 
Objet: Re: alert geometry in GEMC 

Hi all, 

I updated the Alert targets code to implement real run numbers (RRR). 

The variations have been renamed, for consistency and for RRR mapping: 

alertH2 -> rgl_spring2025_H2 
alertD2 -> rgl_spring2025_D2 
alertHe -> rgl_spring2025_He 

For now I’m using run numbers 21001, 21002 and 21003 respectively but of course once the run end the RRR will come from RCDB. 

In geometry_source I added 3 gcards for the 3 variations and a parameter file that specify the target position - hardcoded at 0 for now (let me know if we should use another value), but later on that one will be coming from CCDB. 

I verified nothing changed in the actual geometry. What’s changed in practice for you: basically nothing. These changes are only relevant in preparation for RRR simulations. 
3 new gcards have been added to clas12-config dev instead of the single one we had (w/o the target specifications). 

Best, 

Mauri 



Original Name 	

New Variation 	

Z Position (mm) 	

RUN 


alertH2 	

rgl_spring2025_H2 	

0 	

21001 


alertD2 	

rgl_spring2025_D2 	

0 	

21002 


alertHe 	

rgl_spring2025_He 	

0 	

21003 








On Jun 2, 2025, at 10:07 AM, Maurizio Ungaro <ungaro at jlab.org> wrote: 

Hi all: 

I will be updating the ALERT geometry in preparation for real run number simulations. 

Are these parts always together for alert: 

- hebag 
- alertshell 
- ahdc 
- atof 

If that’s the case it’s better to have them all in one system only, called ‘alert’ . 
I can do that work easily. 

Another question: inside alert shell there are two additional subdirs: 

- 10Dec_JulienUpdate 
- 25Oct_TomUpdate 

They seems not to be used - let me know if I can remove them. 

Best, 
Mauri 






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