[Alert_collaboration] [EXTERNAL] Abstract submission for CPAD Instrumentation Frontier Workshop 2021 participation

[Lucien Causse]

Hello evryone. 
I'm planing to guive a talk at the CPAD 2021.
For that I may submit an abstract of what I will present. 
It seems it must be short.
Here is what Gabriel and I wrote about ALERT drift chamber:

"A Low Energy Recoil Tracker (ALERT) experiment will take place in Hall B at Jefferson Laboratory, Virginia.
It will study the partonic structure of bound nucleons. ALERT detectors must track and identify low energy nucle-
ons and light nucleis from 70 MeV/c to 250 MeV/c up to 60 MHz. It will be used in addition
of the CLAS12 spectrometer already installed in Hall B that will reconstruct scattered electrons.

ALERT is composed of a tracker and a time of flight detector (TOF). The tracker is designed to keep the quantity of material as low as possible before the particles reaches the TOF.
This talk will present the ALERT Hyperbolic Drift Chamber developped for the tracker suitable for the high counting rate, high acceptance and resolution
needs of the experiment. After showing the evolution of the wire support, the mechanical challenges and mounting procedure for the wires that are 2 mm apart, will be detailed.
I will then present the performance of a prototype obtained during beam tests performed at a local facility (ALTO) in Orsay, France."

I will submit it on Sunday evening, beefore that, if you have any suggestion or if you want information we can talk about it. 

Best regards,

Lucien

Ps: Sorry if you receive this message twice, I tried to send it yesturday but I doubt it worked.