Split-Pole Spectrograph

The Split-Pole Spectrograph consists of a reaction chamber, a split-pole magnetic spectrograph, ionization chamber, and a plastic scintinatior.

The magnet can be rotated from 0 to 55 degrees in the lab. The magnetic field has an upper limit of 14.5 kG.

Magnet

SE-SPS Magnet

SE-SPS COSY simularion

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Annotated picture of the SE-SPS

Focal plane detector

The focal plane detector consists of an ion chamber with a set of delay lines to detect the position of a particle along the focal plane and a plastic scintillator to detect the energy of the incoming particle. Using the energy loss of the particle through the ion chamber with the energy deposited in the scintillator, particles of different charge and mass can be identified.

There are two position sensitive delay lines in the focal plane detector. By reconstructing the particle trajectory using the position information of both delay lines, the resolution can be enhanced by correcting for the kinematic shift of the reaction.

SABRE

Installing particle shield on SABER (photo taken on May 5, 2022)

The Silicon Array for Branching Ratio Experiments

SABRE is a silicon array designed around branching ratio experiments with the SPS. SABRE sits at backwards angles from the target, and covers roughly 30% of 4pi. SABRE has both thick and thin dead-layer detectors, with the thin dead-layer detectors capable of reaching ~200 keV thresholds for protons and deuterons.

https://www.sciencedirect.com/science/article/pii/S0168900221002837

SPS Experiment Guide

Media:SPS_Experiment_Guide.pdf

SPS Operating Procedures

I created this section as a place to store procedures for the chamber swaps, however, I expect there are other things we might want to document here. -p

• Target Chamber Swaps

Repositories

https://github.com/sesps

Contact

• Jeff Blackmon mailto:blackmon@lsu.edu
• Ingo
• who should be contacted?