Proof-of-principle of a new geometry for sampling calorimetry using inorganic scintillator plates

Becker, R. H.; Dissertori, G.; Gendotti, A.; Huang, Quiting; Luckey, D.; Lustermann, W.; Lutterer, S.; Nessi‐Tedaldi, F.; Pandolfi, F.; Pauß, F.; Peruzzi, M.; Quittnat, M.; Wallny, R.

doi:10.1088/1742-6596/587/1/012039

Cited by 11 publications

(9 citation statements)

References 9 publications

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“…In some cases, scintillators based on rare-earth (RE)-doped glass matrices were demonstrated to be a valid alternative to single crystals. − At first developed for remote real-time dosimetry in radiology and radiotherapy, − recently, scintillating silica fibers were explored as candidates for the dual-readout calorimetry approach in high-energy physics, − exploiting the simultaneous detection of scintillation and Cherenkov light as a possible way to improve the energy resolution of calorimetric detectors . Quartz fibers were also considered as wavelength shifters for the collection and transport of light in high-energy physics experiments …”

Section: Introductionmentioning

confidence: 99%

“…58 Quartz fibers were also considered as wavelength shifters for the collection and transport of light in high-energy physics experiments. 59 In this work, we studied scintillating Ce-doped silica fibers produced by sol−gel synthesis. 60,61 This procedure allows us to strictly control the luminescent center incorporation and dispersion inside the glass matrix.…”

Section: Introductionmentioning

confidence: 99%

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Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

et al. 2021

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The carrier trapping and recombination mechanisms occurring in Ce-doped silica fibers, produced by a sol−gel technique, are investigated by combining temperature-dependent steady-state X-ray-excited luminescence, wavelength-and timeresolved scintillation measurements, and wavelength-resolved thermally stimulated luminescence, focusing especially on the temperature range from 10 to 320 K. The scintillation decay features a decay time of the order of tens of nanoseconds, characteristic of the parity-and spin-allowed 5d−4f radiative transition of Ce 3+ ions. In addition, a slow and complex decay contribution in the microsecond timescale is detected. We interpret these features as due to the radiative recombination at Ce centers of carriers freed from a continuous distribution of trapping sites in the forbidden gap as well as to the occurrence of an athermal tunneling recombination process between traps and Ce 3+ ions. This interpretation is reinforced by good agreement between independent evaluations of trap depths and lifetimes obtained by both the numerical analysis of scintillation time decays and thermally stimulated luminescence experiments.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

et al. 2021

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“…Cerium fluoride was considered for electromagnetic calorimetry for the Compact Muon Solenoid (CMS) experiment at the high-luminosity Large Hadron Collider (HL-LHC) because it recovers from radiation damage [12], unlike many other crystals [13,14]. A sampling calorimeter design was proposed, alternating tungsten as absorber and cerium fluoride as scintillating medium, with a readout through wavelength-shifting cerium-doped quartz fibers along the chamfers of each calorimeter cell [15][16][17]. This combination of crystal and fiber was chosen because cerium fluoride broadly emits between 300 and 400 nm (Figure 4), with spectrum shape variations depending on the presence of dopants [18], conveniently in the domain of wavelengths that excite the photo-luminescent emission of cerium-doped fused-silica [19].…”

Section: Ce-doped Fibers Coupled To a Cef 3 Crystalmentioning

confidence: 99%

Cerium-doped fused-silica fibers as wavelength shifters

et al. 2019

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A: We have evaluated the performance of a Ce-doped fused-silica fiber as wavelength shifter coupled to a CeF 3 crystal using electron beams at CERN. The pulse shape and collection efficiency were measured using irradiated (100 kGy) and un-irradiated fibers. In addition, we evaluated the light yield of various Ce-doped fibers and explored the possibility of using them in the future, including for precision timing applications in a high-luminosity collider environment. K: Cerium, optical fibers, fused silica Experimental SetupThe tests described here were performed in the H4 beam line of the CERN SPS North Area, which provides high-purity electron beams with energies between 20 and 250 GeV. Four plastic scintillating counters of varying size, the smallest of which has a transverse dimension of 1 × 1 cm 2 , were placed in the beamline for triggering purposes. The data were acquired with a custom DAQ system [3], which utilizes a CAEN2 V1742 VME board. The V1742 includes 4 DRS4 chips [4]

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“…On the basis of the possibility of growing a great variety of fiber shapes and lengths, several calorimeter designs have been proposed [7], exploiting the flexibility of fibers to adapt for various needs. Fibers can be applied either as wavelength shifters for the collection and transport of light [8] or as scintillators and Cherenkov radiators in sampling and dual-readout calorimeters. Fiber technology can allow a cost-effective implementation of the dual-readout approach to HEP measurements.…”

Section: Introductionmentioning

confidence: 99%

Dual Cherenkov and Scintillation Response to High-Energy Electrons of Rare-Earth-Doped Silica Fibers

et al. 2019

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The investigation of the characteristic luminescent response of Ce-doped silica fibers exposed to electrons in the 20-200-GeV energy range is reported in this work to explore the feasibility of using silica-based fibers for a simultaneous dual-readout approach. The sol-gel method allows the preparation of either doped or undoped fibers with high aspect ratio and high purity, providing good flexibility and spatial resolution for the realization of a dual-readout detector. The dual Cherenkov and scintillation light emitted by silica-based fibers potentially offers applications in high-energy-physics calorimetry as well as in other fields, such as radiation monitoring in medicine, security, and industrial control. The response of the fibers, embedded in a tungsten-copper absorber block to obtain a spaghetti-like geometry in a high-energyphysics environment, is investigated through a test-beam campaign at the CERN Super Proton Synchrotron facility. The discrimination of Cherenkov and scintillation light is demonstrated and discussed, along with a detailed investigation of the scintillation properties of the material: time-resolved spectroscopy, relative light output, and attenuation length are evaluated. The results presented in this study can pave the way for further material engineering and future applications.

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Proof-of-principle of a new geometry for sampling calorimetry using inorganic scintillator plates

Cited by 11 publications

References 9 publications

Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

Trapping Mechanisms and Delayed Recombination Processes in Scintillating Ce-Doped Sol–Gel Silica Fibers

Cerium-doped fused-silica fibers as wavelength shifters

Dual Cherenkov and Scintillation Response to High-Energy Electrons of Rare-Earth-Doped Silica Fibers

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