A measurement of the light yield of common inorganic scintillators

Holl, I.; Lorenz, E.; Mageras, G.

doi:10.1109/23.12684

Cited by 372 publications

(181 citation statements)

References 4 publications

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“…The light output of CeF 3 is taken to be 4400 photons/MeV as reported earlier [4,5], which was measured by comparing to the Bismuth Germanate (BGO) photopeak position and normalizing to the BGO light output of 8200 photons/MeV reported by Holl, et al [11]. The photopeak corresponding to the 511 keV photon is clearly seen in the 100%, 50%…”

Section: Light Outputmentioning

confidence: 99%

The scintillation properties of cerium-doped lanthanum fluoride

Moses

Derenzo

1990

Nuclear Instruments and Methods in Physics Research Section A:

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We report on the scintillation proper~ies of cerium-doped lanthanum fluoride (LaF 3 ),. a newly discovered dense (5.9 g/cm 3 ) heavy atom scintillator. We have investigated four. dopant concentrations (0.01 %, 1%, 10% and 50% mole fraction of CeF 3 ), measuring the emission spectrum, light output, and decay time distribution. The light output · increases with increasing cerium concentration until a maximum of 2200 photons/Me V is reached at 10% CeF 3 , then decreases to 1900 photons/MeV at 50% CeF 3 • The emission spectrum depends on concentration, but consists of a pair of peaks centered at approximately 300 nm and 350 nm, with the lower cerium concentrations having a 'greater fraction of 300 nm emissions. The decay time distribution is well described by the sum of 3 exponential components: 3.0 ns, 26.5 ns, and a dopant dependent long component that varies between 185 ns and 275 ns. The fraction of the 3.0 ns fast component increases from 10% at 50% cerium to 15% at 1% cerium and the fraction of the long component increases from 3% at 50% cerium to 21% at 1% cerium. There is hope that a different cerium doping fraction or different host crystal would increase the intensity of these 3 ns emissions.

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Section: Light Outputmentioning

confidence: 99%

The scintillation properties of cerium-doped lanthanum fluoride

Moses

Derenzo

1990

Nuclear Instruments and Methods in Physics Research Section A:

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“…The light output of BBI was estimated by comparing the response of NaI:Tl to the one of BaBrI:Eu 2+ . From the fitting, a light output of 81,000 ± 3,000 photons per MeV was estimated for BaBrI:Eu 2+ , corresponding to 1.9 times the light output of NaI:Tl commonly reported between 43,000 and 45,000 ph/MeV [8] [9]. Table 1 gives estimated light outputs as a function of the shaping time.…”

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confidence: 99%

BaBrI:Eu2+, a new bright scintillator

Bourret-Courchesne

Bizarri

Hanrahan

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

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The scintillation properties of BaBrI:Eu 2+ are reported. Crystals were produced by the vertical Bridgman technique in a sealed quartz ampoule. Excellent scintillation properties were measured. A light yield of 81,000 ± 3,000 photons per MeV (ph/MeV) of absorbed gamma-ray energy was measured. An energy resolution (FWHM over peak position) of 4.8 ± 0.5% was observed for the 662 keV full absorption peak. Pulsed x-ray luminescence measurements show two exponential decay components of 297 and 482 ns with a contribution to the total light output of 23 and 77%, respectively. Under X-ray and UV excitation, the emission corresponds to a broadband center at 413 nm. These intitial values make BaBrI:Eu 2+ one of the brightest and the fastest known Eu 2+ doped scintillators.Introduction Very few known scintillators have a good energy resolutions, which is essential for spectroscopic applications such as isotopic identification of nuclear materials. High luminosity and relatively high speed (less than 1 µs) are also highly desirable for these applications. Only 18 compounds are reported with an energy resolution of less than 6% [1]. Among those, only SrI 2 is activated by Eu 2+ . While activation with Eu 2+ yields scintillation light that is slower than that produced from Ce 3+ activation, it is still fast enough for many applications such as those related to national security. In this paper we present the scintillation properties of BaBrI:Eu 2+ . Barium mixed halides activated by Eu 2+ have been extensively studied as X-ray phosphors [2-4] but have not been investigated as scintillators.

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“…promising for single particle detection. It has been shown that Csi(Tl) gives more light than Nai(Tl) [22]. Csi(Na) light yield is comparable to Nai(Tl).…”

Section: Scintillation Faceplatementioning

confidence: 78%

Applications of a-Si:H radiation detectors

Fujieda

Cho

Kaplan

et al. 1989

Journal of Non-Crystalline Solids

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Devic~ structures and operation principles are described for detecting various kinds of radiation with hydrogenated amorphous silicon (a-Si:H) layers. With some new configurations such as the buried p-i-n structure and the use of interdigitated electrodes, the aSi:H radiation detectors will find their applications in rnany fields of science. Some applications in high energy physics, medical imaging, materials sciences and life sciences are discussed in this paper.

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A measurement of the light yield of common inorganic scintillators

Cited by 372 publications

References 4 publications

The scintillation properties of cerium-doped lanthanum fluoride

The scintillation properties of cerium-doped lanthanum fluoride

BaBrI:Eu2+, a new bright scintillator

Applications of a-Si:H radiation detectors

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