Author : Beryl Bell
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)
Book Synopsis Simulation Benchmarking and Equipment Characterization for the Ultracold Neutron Facility at TRIUMF by : Beryl Bell
Download or read book Simulation Benchmarking and Equipment Characterization for the Ultracold Neutron Facility at TRIUMF written by Beryl Bell and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "This thesis addresses a collection of analyses and simulations done on behalf of the TRIUMF Ul-traCold Advanced Neutron (TUCAN) collaboration in order to contribute to the development ofthe new UltraCold Neutron (UCN) source in an effort to increase the precision on the measurementof the neutron Electric Dipole Moment (nEDM) to10−27ecm. Within this range a non-zero nEDMwould verify physics beyond the standard model. In order to produce UCN, TUCAN combinesaccelerator driven spallation with a superfluid helium cryostat.The first chapter details the physics background required to understand how the UCN source worksand how the required precision for the nEDM measurement will be achieved. Additionally, it willintroduce PENTrack, the Monte Carlo simulation software which has been developed specificallyfor UCN and nEDM simulations. The second chapter introduces the experimental setup at TRI-UMF, including the proton beamline developed for this UCN source, the prototype source cryostatdeveloped at the Research Center for Nuclear Physics (RCNP) of the University of Osaka, and thenEDM spectrometer which is still under development. Additionally, it will cover briefly the typesof UCN experiments performed at TRIUMF in 2018, which are the main focus of this thesis, aswell as the two types of UCN detectors and how they operate. Chapter 3 covers the analysis ofthe 2018 run relevant to this work. During this run the relative responses of two detectors weremeasured. Furthermore, the total accumulated proton beam intensity on target during the 2018run was extracted from the data, followed by a verification of the correspondence of the TorodialNon-Intercepting Monitor (TNIM) reading with the extracted beam intensity. Chapter 4 is an intro-duction of a potential future experiment to be performed at the TRIUMF source in order to measurethe energy spectrum of the UCN produced in the source using a gravity spectrometer. During thepreparation for this experiment it was found that there were significant differences in measuredand simulated storage lifetimes in the spectrometer. Reasons for this discrepancy are discussedand paths of investigation are presented. Chapter 5 concludes the above work and summarizes theresults of this thesis and the work to follow"--