The Impact of Helium Pressure on Ion-guiding Efficiency at the Low Energy Branch of NEXT

Blommaert, René (2024) The Impact of Helium Pressure on Ion-guiding Efficiency at the Low Energy Branch of NEXT. Bachelor's Thesis, Physics.

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Abstract

The goal of this research project is to work on the pressure control and monitoring of the NEXT ion-guide, as to determine and recommend an optimal pressure for the highest ion transmission and bunching efficiency. A communication system between the Leybold GRAPHIX 2 gauge controller and the Influxdb database was established by creating new Python drivers. Initial measurements were performed from a range of 10^(–4) mbar to 10^(–2) mbar, using an offline version of the set-up. Measuring the Time of Flight (ToF) and counts up until the first MicroChannel Plate detector (MCP). A full analysis of the different parameters suggests an optimal pressure at approximately 1.0×10^(–2) mbar, giving almost 5 counts/ejection and a Full Width Half Maximum (FWHM) of 135 ns.

Item Type:	Thesis (Bachelor's Thesis)
Supervisor name:	Even, J. and Rigollet, C.E.
Degree programme:	Physics
Thesis type:	Bachelor's Thesis
Language:	English
Date Deposited:	08 Jul 2024 12:06
Last Modified:	08 Jul 2024 12:06
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/33059

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