Статья

The GREAT triggerless total data readout method

I. LazarusSERC Daresbury Lab., Warrington, UKE.E. AppelbeDaresbury Laboratory, Warrington, UKP. A. ButlerOliver Lodge Laboratory, University of Liverpool, Liverpool, UKP. J. Coleman-SmithDaresbury Laboratory, Warrington, UKJ.R. CresswellOliver Lodge Laboratory, University of Liverpool, Liverpool, UKS. J. FreemanDepartment of Physics and Astronomy, University of Manchester, Institute of Science and Technology, Manchester, UKR.-D. HerzbergOliver Lodge Laboratory, University of Liverpool, Liverpool, UKI. M. HibbertOliver Lodge Laboratory, University of Liverpool, Liverpool, UKD. T. JossSchool of Sciences, Staffordshire University, Stoke-on-Trent, UKS. C. LettsDaresbury Laboratory, Warrington, UKR. D. PageOliver Lodge Laboratory, University of Liverpool, Liverpool, UKV. PucknellDaresbury Laboratory, Warrington, UKP. H. ReganDepartment of Physics, University of Surrey, Guildford, UKJ.A. SampsonOliver Lodge Laboratory, University of Liverpool, Liverpool, UKJ. SimpsonDaresbury Laboratory, Warrington, UKJ. ThornhillOliver Lodge Laboratory, University of Liverpool, Liverpool, UKR. WadsworthDepartment of Physics, University of York, York, UK

2001en

ABI

Аннотация

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.

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Идентификаторы

DOI: 10.1109/23.940120

Цитирования и источники

Цитирований: 5Использованных источников: 0

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