[Alert_collaboration] [EXTERNAL] Fwd: [Hallb] RG-L run update, no RC meeting today

[Raphael Dupre]

Hello everyone,

See below, no RC meeting today, and since today is a holiday in France, so we will not have the usual weekly meeting either!

Cheers,
Raphael

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

----- Mail transféré -----
De: "Nathan Baltzell via Hallb" <hallb at jlab.org>
À: "hallb" <hallb at jlab.org>, "CLAS MEMBERS" <clas_members at jlab.org>
Envoyé: Jeudi 29 Mai 2025 14:59:25
Objet: [Hallb] RG-L run update, no RC meeting today

Dear Everyone,

Let's cancel today's RC meeting due to scheduling conflicts, we'll resume tomorrow.  

Yesterday's maintenance day included successful repairs of the AHDC readout electronics and the recent sector 1 trigger issues, and the IPM2H01 cavity was also tuned.  Beam restoration was good and quick and included a Moller run measuring 83% polarization.  RG-L production running started around 10pm, with 325 nA on He-4.

Today's plan is to continue production running as is, with only a brief study by the injector group in between runs to see if our laser power can now be decreased without sacrificing beam halo/quality.  Also, our Faraday cup trigger rate is fluctuating oddly, used for offline background studies, to be investigated.

Regards,
Nathan as RC


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