ELOG CARME

AIDA GELINA BRIKEN nToF CRIB ISOLDE CIRCE nTOFCapture DESPEC DTAS EDI_PSA 179Ta CARME StellarModelling DCF K40

CARME

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Tue May 13 15:07:42 2025

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CARME_Sort histogramming has been updated to aid our understanding online.

&gt; XY plots have been updated to reflect the true position of the beam relative to each detector. Online we will be able to layout in a grid to reflect looking downstream in YR09 (see attachment 1)

&gt; Angle vs Energy plots have been created (see attachment 2). For this the position of the detectors has to hardcoded in the EventClustering header file of the code. This has been done using the detector positions from the 426 keV/u 15N measurement in 2024 which is the reference position. To reflect the true state during the beamtime a correction to these positions is required in the EventClustering regular file (e.g x_position + 30 mm). Correction can be applied using difference between potentiometer value and reference potentiometer values.&nbsp;

Ref potentiometer value LEFT = 36.54 mm

Ref potentiometer value RIGHT = 64.60 mm

&gt; An additional condition based on the cluster y position has been added for an event to be added to the histograms. This can be used to remove edge strips affected by the beam stripe (if beam stripe can&#39;t be removed via scrapers). This allows angle vs energy and regular energy histograms to be of use online. Currently this option is set to zero, can be enabled if beam stripe persists.

&gt; Histograms not immediately useful (such as high energy XY etc) have been commented out. This makes the histogram browser cleaner and should ease use for online shifters. (see attachment 3)

&gt; Corrections to CARME_Sort found during analysis of 15N data have been added to the code. These include Event timing cutoffs in the EventBuilder and a corrreciton to the BuildTimestamp function in DataItems file which was causing timewarps.

&gt; Previous CARME_Sort versions have been saved and will be uploaded to github in due time.

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