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Title: Measurement of the normal polarisation variable, Py0, in a ²H(e,e'n) experiment
Author: Scott, Andrew M.
ISNI:       0000 0001 3557 3704
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 2002
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The High Acceptance Recoil Polarimeter (HARP) is a new polarimeter detector which is based on the recoil principle, using liquid hydrogen as an analyser. With the analysing power, Ay well known for n-p and p-p scattering, the asymmetry from the incoming nucleon flux and the normal polarisation variable, Py0 can be determined in a 2H(e,e'n) reaction. The 2H(e,e'n) experiment which was performed at NIKHEF, Amsterdam which utilised HARP as means to detect the polarisation of the neutron took place late in 1997. This thesis documents my involvement in the building and testing of this new detector system, my participation in the development of the data-acquisition software and in a commissioning experiment which took place at NIKHEF in November 1996 involving HARP. My work at ISN Grenoble on the analysis of the wire chamber information from the commissioning experiment is also documented. An overview of the HARP detector and its components are described and their performance under experimental conditions are documented. In addition, the experimental hall at NIKHEF, Emin, is also described. This thesis also describes the running of the 2H(e,e'n) experiment, the set-up at the experimental hall at NIKHEF and the problems encountered during this experiment involving the failure of the electron beam and the wire chambers of the HARP detector. A novel analysis method to extract as much information as possible in the absence of wire chamber data and with the reduced beam time of the experiment is presented where a value of 0.03 for Py0 is found.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available
Keywords: Nuclear physics & particle accelerators