Shower Calorimeters and Hot Beta Source: Updates and Progress Report

Detailed updates on the progress of the shower calorimeters project, including the production of tungsten plates, data analysis simulation, and beta source status. Also, information on the source manufacturer and the challenges faced with the proposed SrCl2 enclosure. The report outlines the upcoming shipments and construction plans for the shower calorimeters, along with links to photos and drawings.

• Progress Report
• Shower Calorimeters
• Tungsten Plates
• Beta Source Updates
• Data Analysis

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1. Local FCalPulse Mtg J.Rutherfoord 11 March 2021 v1

2. Outline Shower calorimeter tungsten plates How to proceed with Sr-90 beta source - Rob Simulating FCalPulse raw data and writing data analysis code Graham Woolley Off-axis 350 GeV electrons impinging on our test beam setup Justin Hink Energy deposits in the LAr from 350 GeV electrons Evan LaForge 11 March 2021 J. Rutherfoord 2

3. Shower Calorimeters on L/R 11 March 2021 J. Rutherfoord 3

4. The Shower Calorimeters IHEP/Protvino (Sergey Denisov) has produced 26 30 30 3.5 mm3 W plates Will ship to MPI/Munich in early April MPI (Sven Menke) will ship to us We will make the shower calorimeters For detailed data on the W plates see https://indico.cern.ch/event/1013221 For the parts drawings see (next slide) 11 March 2021 J. Rutherfoord 4

5. Links to photos and drawings For FCalPulse mechanicals see https://goo.gl/photos/8f2G1mHXgcDtDAnX9 for drawings https://photos.app.goo.gl/peQ1GosCpxrPe7N5A for pictures Or http://atlas.physics.arizona.edu/Arizona_Atlas_Downloads/walker/FCalPulse 14 December 2020 J. Rutherfoord 5

6. Hot beta source - Status Manufacturer: IPPE Obninsk We asked them to pause production Their proposal to enclose the SrCl2 in 100 m of Indium is unacceptable. Indium is too dense and Z is too high Defeats the point of the thin Titanium shell wall Source foil Shell 11 March 2021 J. Rutherfoord 6

7. 11 March 2021 J. Rutherfoord 7