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The GREAT triggerless total data readout method

Lazarus, I H, Appelbe, D E, Butler, P A, Coleman-Smith, P J, Cresswell, J R, Freeman, S J, Herzberg, R D, Hibbert, I, Joss, D T, Letts, S C, Page, R D, Pucknell, V F E, Regan, P H, Sampson, J, Simpson, J, Thornhill, J and Wadsworth, R (2001) The GREAT triggerless total data readout method. IEEE Transactions on Nuclear Science. pp. 567-569. ISSN 0018-9499

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Abstract

Recoil decay tagging (RDT) is a very powerful method for the spectroscopy of exotic nuclei. RDT is a delayed coincidence technique between detectors usually at the target position and at the focal plane of a spectrometer. Such measurements are often limited by dead time. This paper describes a novel triggerless data acquisition method, which is being developed for the Gamma Recoil Electron Alpha Tagging (GREAT) spectrometer, that overcomes this limitation by virtually eliminating dead time. Our solution is a total data readout (TDR) method where all channels run independently and are associated in software to reconstruct events. The TDR method allows all the data from both target position and focal plane to be collected with practically no dead-time losses. Each data word is associated with a timestamp generated from a global 100-MHz clock. Events are then reconstructed in real time in the event builder using temporal and spatial associations defined by the physics of the experiment

Item Type: Article
Copyright, Publisher and Additional Information: Copyright © 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords: alpha-particle spectroscopy, beta-ray spectroscopy, coincidence circuits, data acquisition, gamma-ray spectroscopy, nuclear physics, triggering, SPECTROSCOPY, ELECTRON
Academic Units: The University of York > Physics (York)
Depositing User: Repository Officer
Date Deposited: 01 Feb 2006
Last Modified: 17 Oct 2013 14:35
Published Version: http://dx.doi.org/10.1109/23.940120
Status: Published
Refereed: Yes
Related URLs:
URI: http://eprints.whiterose.ac.uk/id/eprint/969

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