Results 211 to 220 of about 4,222 (252)

Aliovalent Doping of CeBr 3

SPIE Proceedings, 2010
Despite the outstanding scintillation performance characteristics of CeBr 3 and LaBr 3 :Ce, commercial availability and application is limited due to the difficulties with crystal growth of large, crack-free single crystals of these fragile materials.
M. J. Harrison, P. Ugorowski, C. Linnick, S. Brinton, D. S. McGregor, F. P. Doty, S. Kirpatrcik, D. F. Bahr   +7 more
openaire   +1 more source

CeBr/sub 3/ scintillators for gamma-ray spectroscopy

IEEE Transactions on Nuclear Science, 2005
In this paper, we report on a new scintillator, cerium bromide (CeBr3), for gamma-ray spectroscopy. Crystals of this scintillator have been grown using Bridgman process. In CeBr3, Ce3+ is an intrinsic constituent as well as a luminescence center for the scintillation process, has high light output (~68,000 photons/MeV) and fast decay constant (~17 ns).
K.S. Shah, J. Glodo, W. Higgins, E.V.D. van Loef, W.W. Moses, S.E. Derenzo, M.J. Weber   +6 more
openaire   +1 more source

Thermodynamic Functions of CeBr₃ and Congruently Melting M₃CeBr₆ Compounds (M = Rb, Cs)

Journal of Chemical & Engineering Data, 2008
The enthalpies of phase transitions and heat capacity were measured by differential scanning calorimetry for CeBr3 as well as the Rb3CeBr6 and Cs3CeBr6 congruently melting compounds. A polynomial heat capacity dependence with respect to temperature was used to fit the experimental data.
L. Rycerz, E. Ingier-Stocka, M. Berkani, M. Gaune-Escard   +3 more
openaire   +1 more source

Scintillation Performance of Aliovalently-Doped ${\rm CeBr}_{3}$

IEEE Transactions on Nuclear Science, 2009
Strengthening the crystal lattice of lanthanide halides, which are brittle, anisotropic, ionic crystals, may prove to increase the availability and ruggedness of these scintillators for room-temperature gamma-ray spectroscopy applications. Eight aliovalent dopants for CeBr3 were explored in an effort to find the optimal aliovalent strengthening agent ...
Mark J. Harrison, Christopher Linnick, Benjamin Montag, Samuel Brinton, Mark McCreary, F. P. Doty, Douglas S. McGregor   +6 more
openaire   +1 more source

Luminescence and Scintillation Properties of a CeBr$_{3}$ Single Crystal

IEEE Transactions on Nuclear Science, 2008
Crystal growth, luminescence, and scintillation properties of a CeBr3 crystal are presented. The crystal was grown with Bridgman method using two-zone transparent furnace and cut to Oslash10 times 10 mm3. The investigation of luminescence and scintillation properties of the CeBr3 was performed under the excitation by ultraviolet and gamma-rays at room ...
Sejin Ra, Sunghwan Kim, H. J. Kim, H. Park, Sanghoon Lee, Heedong Kang, Sih-Hong Doh   +6 more
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Centro Base de Recursos Educativos : CEBRE

2022
La educación en el Perú, tiene dos grandes metas: 1. Mejorar el nivel de enseñanza y aprendizaje, y 2. Brindar espacios educativos de calidad para todas y para todos. Según el último ranking PISA (2018), nuestro país ocupa el puesto 65 de los 77 países que participaron en las pruebas de matemática, lenguaje y ciencias.
openaire   +1 more source

Kereci`nin `İlal Hesab el-Cebr Ve`l-Mukabele` adlı eseri

2021
162
openaire   +2 more sources

The scintillation properties of CeBr 3−x Cl x single crystals

Journal of Luminescence, 2014
Abstract We present a study of mixed halide single crystal scintillators with the general formula CeBr 3− x Cl x , where 0≤ x ≤3. Single crystals with various bromine–chlorine ratios were grown by the Bridgman method, and their scintillation properties were investigated. Under X-ray irradiation, the peak emission ranged between 350 and 450 nm. The
Hua Wei, Victoria Martin, Adam Lindsey, Mariya Zhuravleva, Charles L. Melcher   +4 more
openaire   +1 more source

Performance Evaluation of Liquinert-Processed CeBr₃ Crystals Coupled With a Multipixel Photon Counter

IEEE Transactions on Nuclear Science, 2020
Ce-doped scintillators are capable of shortening the time constant as the luminescence is caused by 5d $\to$ 4f transition of Ce3+. A scintillator with a short-time constant is suitable for time-of-flight (TOF)-positron emission tomography (PET).
Yutaka Otaka, Kenji Shimazoe, Yuki Mitsuya, Mizuki Uenomachi, Foong Wei Seng, Kei Kamada, Akira Yoshikawa, Shiro Sakuragi, Tim Binder, Hiroyuki Takahashi   +9 more
openaire   +1 more source

Investigation into nanostructured lanthanum halides and CeBr 3 for nuclear radiation detection

SPIE Proceedings, 2011
Nanocomposites may enable the use of scintillator materials such as cerium-doped lanthanum fluoride (LaF3:Ce) and cerium bromide (CeBr3) without requiring the growth of large crystals 1 . Nanostructured detectors may allow us to engineer immensely sized detectors of flexible form factors that will have a broad energy range and an energy resolution ...
Guss, P., Guise, R., Mukhopadhyay, S., Yuan, D.   +3 more
openaire   +1 more source