Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams

Rofors, E.; Pallon, Jan; Jebali, R. Al; Annand, J. R. M.; Boyd, L.; Christensen, Mogens; Clemens, U.; Désert, Sylvain; Elfman, Mikael; Engels, R.; Fissum, Kevin; Frielinghaus, Henrich; Frost, R.J.W.; Gardner, S.; Gheorghe, Codin; Hall-Wilton, R.; Jaksch, Sebastian; Kanaki, K.; Kemmerling, G.; Kristiansson, P.; Livingston, K.; Maulerova, V.; Mauritzson, N.; Montgomery, R. A.; Perrey, H.; Richter, Tobias; Scherzinger, J.; Seitz, B.; Shetty, M.

doi:10.1016/j.nima.2020.164604

Cited by 6 publications

(14 citation statements)

References 43 publications

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“…The detector used for SKADI will be a SoNDe-type pixelated scintillation detector [7,[18][19][20]. Apart from the high-flux capability necessary [21], especially in the area of the primary beam, this detector also provides an excellent scalability and geometric freedom arranges the available active surface area as needed.…”

Section: Detectormentioning

confidence: 99%

“…While doing this, the pertinent parameters, such as the m-values of the guides, as well as the length and position of components, were varied in order to make sure the configuration was in a stable performance maximum. The SoNDe detector was finally developed specifically for use in a SANS instrument [7,[18][19][20].…”

Section: Summary and Scientific Performancementioning

confidence: 99%

“…The spatial resolution at the detector, the wavelength resolution of the detected neutrons, the brilliance transfer of useful neutrons to the sample, the simultaneously covered solid angle with the detector, as well as the general suitability for a wide range of experiments are important parameters during the design of such an instrument. While the spatial resolution of the detector itself is given by the employed detector technology, the positioning of the detector can be used to adjust the solid angle coverage of a pixel or the readout mode [7] to achieve the desired resolution. For most experimental settings, the detector resolution of SKADI is better than needed in order to avoid an additional contribution to the overall resolution.…”

Section: Introductionmentioning

confidence: 99%

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Technical Specification of the Small-Angle Neutron Scattering Instrument SKADI at the European Spallation Source

et al. 2021

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Small-K Advanced DIffractometer (SKADI is a Small-Angle Neutron Scattering (SANS) instrument to be constructed at the European Spallation Source (ESS). SANS instruments allow investigations of the structure of materials in the size regime between Angstroms up to micrometers. As very versatile instruments, they usually cater to the scientific needs of communities, such as chemists, biologists, and physicists, ranging from material and food sciences to archeology. They can offer analysis of the micro- and mesoscopic structure of the samples, as well as an analysis of the spin states in the samples, for example, for magnetic samples. SKADI, as a broad range instrument, thus offers features, such as an extremely flexible space for the sample environment, to accommodate a wide range of experiments, high-flux, and optimized detector-collimation system to allow for an excellent resolution of the sample structure, short measurement times to be able to record the internal kinetics during a transition in the sample, as well as polarized neutron scattering. In this manuscript, we describe the final design for the construction of SKADI. All of the features and capabilities presented here are projected to be included into the final instrument when going into operation phase.

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Section: Detectormentioning

confidence: 99%

Section: Summary and Scientific Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Technical Specification of the Small-Angle Neutron Scattering Instrument SKADI at the European Spallation Source

et al. 2021

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“…Calvi et al [29] report that electronic crosstalk is actually dependent upon both the pixel and the position within this pixel and that it uctuates di erently near horizontal and vertical edges (see below). The operating voltage was -900 V. Corrections for pixel-to-pixel gain variations were performed o ine using a gain map measured with the 3 mm, 2.4 Å neutron beam used to irradiate each pixel center consecutively, as described in [33].…”

Section: Multi-anode Photomultiplier Tubementioning

confidence: 99%

“…LEDs and laser light have been used extensively to study the detailed responses of several di erent MAPMTs [22][23][24][25][26][27][28][29][30][31]. Previously, scans of a ∼1 mm collimated beam of ∼4 MeV α-particles from an 241 Am source [32] and ∼100 µm diameter beams of 2.5 MeV protons and deuterons [33] have been used to study the position-dependent response of a SoNDe detector prototype in regions well-removed from the edges of the detector acceptance. Thermal neutrons have also been used to perform rst tests both on similar detectors [34] and on SoNDe modules [21].…”

Section: Introductionmentioning

confidence: 99%

Response of a Li-glass/multi-anode photomultiplier detector to collimated thermal-neutron beams

Rofors,

Mauritzson,

Perrey

et al. 2020

Preprint

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The response of a position-sensitive Li-glass scintillator detector being developed for thermal-neutron detection with 6 mm position resolution has been investigated using collimated beams of thermal neutrons. The detector was moved perpendicularly through the neutron beams in 0.5 to 1.0 mm horizontal and vertical steps. Scintillation was detected in an 8 × 8 pixel multi-anode photomultiplier tube on an event-by-event basis. In general, several pixels registered large signals at each neutron-beam location. The number of pixels registering signal above a set threshold was investigated, with the maximization of the single-hit e ciency over the largest possible area of the detector as the primary goal. At a threshold of ∼50% of the mean of the full-deposition peak, ∼80% of the events were registered in a single pixel, resulting in an e ective position resolution of ∼5 mm in X and Y.Lower thresholds generally resulted in events demonstrating higher pixel multiplicities,

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Simulation of the response of the Solid State Neutron Detector for the European Spallation Source

Boyd

Rofors

Annand

et al. 2021

Nuclear Instruments and Methods in Physics Research Section A:

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Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams

Cited by 6 publications

References 43 publications

Technical Specification of the Small-Angle Neutron Scattering Instrument SKADI at the European Spallation Source

Technical Specification of the Small-Angle Neutron Scattering Instrument SKADI at the European Spallation Source

Response of a Li-glass/multi-anode photomultiplier detector to collimated thermal-neutron beams

Simulation of the response of the Solid State Neutron Detector for the European Spallation Source

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