A helium gas scintillator active target for photoreaction measurements
| Autor: | Jan-Olof Adler, Andreas J. H. Reiter, K. Livingston, B. Strandberg, S. Gardner, D. G. Middleton, I. J. D. MacGregor, John Sjögren, E. Buchanan, R. Jebali, G. Rosner, D. Sokhan, David Hamilton, Kurt Hansen, Kevin Fissum, Iskender Akkurt, Jason Brudvik, Lennart Isaksson, J. C. McGeorge, Mikael Lundin, Bent Schröder, Rodderick MacRae, J. R. M. Annand |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Nuclear and High Energy Physics Photomultiplier Scintillation Physics - Instrumentation and Detectors Photon Physics::Instrumentation and Detectors 010308 nuclear & particles physics Hadron Monte Carlo method FOS: Physical sciences Instrumentation and Detectors (physics.ins-det) Scintillator 7. Clean energy 01 natural sciences Photodisintegration 0103 physical sciences Nuclear fusion Nuclear Experiment (nucl-ex) Atomic physics 010306 general physics Nuclear Experiment |
| Zdroj: | The European Physical Journal A. 51 |
| ISSN: | 1434-601X 1434-6001 |
| Popis: | A multi-cell He gas-scintillator active target, designed for the measurement of photoreaction cross sections, is described. The target has four main chambers, giving an overall thickness of 0.103 $\mathrm{g/cm^{2}}$ at an operating pressure of 2 MPa. Scintillations are read out by photomultiplier tubes and the addition of small amounts of $\mathrm{N}_{2}$ to the He, to shift the scintillation emission from UV to visible, is discussed. First results of measurements at the MAX IV Laboratory tagged-photon facility show that the target has good timing resolution and can cope well with a high-flux photon beam. The determination of reaction cross sections from target yields relies on a Monte Carlo simulation, which considers scintillation light transport, photodisintegration processes in $^{4}\mathrm{He}$, background photon interactions in target windows and interactions of the reaction-product particles in the gas and target container. The predictions of this simulation are compared to the measured target response. Comment: 24 pages, 15 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink