Article
Chemistry, Physical
Xin Zhao, Xujiao Yin, Dongqi Liu, Changfu Huo, Guang-Zong Dong, Sijie Chen, Zhi-Bo Liu, Xiao-Qing Yan, Jian-Guo Tian
Summary: Layered quaternary metal thio/selenophosphates have composition-dependent physical properties and important applications in optoelectronic devices. This study investigates the ultrafast photocarrier dynamics and nonlinear absorption of a bulk AgInP2S6 crystal, a new member of this material family. The results reveal defect-assisted photoluminescence and two-photon absorption in AgInP2S6, and provide insights into the carrier relaxation process and the effect of defect changes on optical properties.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Mathematics, Applied
Yanyi Li, Lily Chen
Summary: The paper investigates the injective edge coloring numbers of generalized Petersen graphs P(n, 1) and P(n, 2), determining the exact values for certain values of n. The study reveals the minimum k for which G has a k-injective edge coloring, providing insights into the injective edge coloring of these specific graph structures.
Article
Chemistry, Physical
Aamir Mushtaq, Liam Clink, Mohamed Yaseen Noor, Conrad Kuz, Emma DeAngelis, Ryan Siebenaller, Adam Fisher, Darpan Verma, Roberto C. Myers, Benjamin S. Conner, Michael A. Susner, Enam Chowdhury
Summary: The nonlinear optical behavior of Cu0.33In1.30P2S6 bulk heterostructure was studied. Large two-photon induced nonlinear absorptions and self-defocusing were observed using the Z-scan technique. These observations can be utilized for designing optoelectronic and ultrafast photonic devices.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Applied
Jianyang Zang, Wan Feng, Xingmao Chang, Ke Liu, Haonan Peng, Liping Ding, Taihong Liu, Yu Fang
Summary: The drastic changes in two-photon absorption coefficients resulting from slight changes of electronic delocalization through coordination interaction play a significant role in enhancing the nonlinear optical properties of multi-chromophore structures. Experimental results demonstrate that the 2PA phenomenon is the dominant factor contributing to the NLO properties of the complexes, with the values of degenerate 2PA cross sections being noticeably enhanced by coordination interactions. Importantly, the complexes exhibit high 2PA values and multiple excitation wavelengths, potentially offering a novel approach for creating useful nonlinear absorbing materials.
Article
Chemistry, Multidisciplinary
Jie Meng, Zhenyun Lan, Weihua Lin, Mingli Liang, Xianshao Zou, Qian Zhao, Huifang Geng, Ivano E. Castelli, Sophie E. Canton, Tonu Pullerits, Kaibo Zheng
Summary: By combining experimental and theoretical methods, we investigate the hot carrier relaxation dynamics in Mn-doped lead halide perovskite nanocrystals. We find that Mn2+ doping enhances the electron-LO phonon coupling and introduces new relaxation pathways, leading to accelerated cooling of high-temperature hot carriers when excited above the bandgap. This phenomenon is advantageous for the energy conversion process in hot carrier solar cells.
Article
Physics, Multidisciplinary
Zhidu Zhang, Xiaomei Zhang, Jinming Hu, Qiong Xu, Mohan Li, Cunfeng Wei, Long Wei, Zhe Wang
Summary: This study introduces a Gaussian spectrum selection method for multienergy K-edge decomposition imaging, which extracts a better K-edge signal by optimizing energy bins, improving the quality of the decomposition images, and potentially reducing the amount of contrast agents used.
FRONTIERS IN PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Audrey Eshun, Bing Gu, Oleg Varnavski, Shahaf Asban, Konstantin E. Dorfman, Shaul Mukamel, Theodore Goodson
Summary: Entangled photon pairs are utilized for molecular spectroscopy and quantum interferometry, with the experiment showcasing a combination of both techniques to study molecular properties. By utilizing the correlations of entangled photons in an HOM interferometer, the experiment successfully extracts the dephasing time of the coherent response induced by excitation. The measurement method using coincidence counts is unaffected by even-order dispersion effects, providing a more accurate representation of the light-matter interaction.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
A. M. Abdelmonem, E. O. Echeweozo
Summary: In this study, the interaction parameters of gamma-ray, neutron, and charge particles in nine selected thermoplastic polymers with different densities were investigated. The shielding capabilities of these polymers for special radiation shielding applications were evaluated. The results showed that PES had high shielding capability at lower gamma energies. The range of H+ and He++ ions increased with decreasing density of the samples but increased with projectile energies. PES had the highest stopping power at higher electron energies and lowest range at higher electron energies. Composite of PES and PEK is recommended for use in special radiation protection installations and medical radiotherapy.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Multidisciplinary Sciences
Patrycja Stachelek, Lewis MacKenzie, David Parker, Robert Pal
Summary: The authors introduce a live-cell imaging system using chiroptical contrast, enabling the study of chiral interactions. They demonstrate simultaneous imaging of enantiomeric pairs of molecular probes emitting circularly polarised light, using both single and two-photon excitation.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Applied
Fernanda Garcia de Almeida, Milena do Prado Ferreira, Mariana Gava Segatelli, Alexandra Beal, Wilma Aparecida Spinosa, Fabio Antonio Suquila Cajamarca, Cesar Ricardo Teixeira Tarley
Summary: A solid phase preconcentration method for cobalt determination at trace levels was developed using a cross-linked polymer as an efficient adsorbent, achieving high sensitivity and recoveries ranging from 91-104% in different samples.
REACTIVE & FUNCTIONAL POLYMERS
(2021)
Article
Chemistry, Physical
Mingyue Mao, Jie Wu, Yi Wang, Yan Long, Guangyin Fan
Summary: This study presents an efficient strategy to modulate the active site and adsorption behaviors of PdNi alloy nanoparticles on carbon nanosheets, resulting in enhanced electrocatalytic hydrodechlorination performance for chlorophenols. The fabricated catalyst exhibits superior removal efficiency and stability compared to monometallic catalysts. This research provides a promising approach for the development of high-performance electrocatalysts for electrocatalytic hydrodechlorination reactions.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Biomedical
Stevan Vrbaski, Lucia Mariel Arana Pena, Luca Brombal, Sandro Donato, Angelo Taibi, Adriano Contillo, Renata Longo
Summary: The aim of this study is to improve the diagnostic accuracy of breast tissues by decomposing the density and effective atomic number in spectral breast CT. The results show that spectral CT enhances tissue differentiation and improves the diagnostic accuracy of breast CT.
PHYSICS IN MEDICINE AND BIOLOGY
(2023)
Article
Materials Science, Multidisciplinary
S. W. Lovesey, D. D. Khalyavin, G. van der Laan
Summary: This study examines the magnetic structure of rutile-type RuO2 and analyzes it using methods such as X-ray diffraction and polarized neutron study. The results indicate that the magnetic properties of rutile-type RuO2 can be described by a simple antiferromagnetic structure.
Article
Chemistry, Multidisciplinary
Huanrong Fan, Faizan Raza, Irfan Ahmed, Muhammad Imran, Faisal Nadeem, Changbiao Li, Peng Li, Yanpeng Zhang
Summary: We report on the photon-phonon atomic coherence interaction in Eu3+: BiPO4 crystal during different phase transitions. By changing the time gate, we observe the evolution from out-of-phase fluorescence to in-phase spontaneous four-wave mixing. The experimental measurements confirm the theoretical simulations and provide insights into the influence of phonon dressing on the strength and type of photon-phonon interaction.
Article
Radiology, Nuclear Medicine & Medical Imaging
Tianyu Liu, Guobin Hong, Wenli Cai
Summary: This research compared various formalisms of Effective Atomic Number (Zeff), revealing their connections and application in material differentiation on dual-energy computed tomography (DECT). Results showed differences in Zeff values between Bourque and Taylor, and a categorization of formalisms at 61 keV into two groups with similar Zeff values within each group.
Article
Biology
M. Kurudirek, Y. Kurucu
INTERNATIONAL JOURNAL OF RADIATION BIOLOGY
(2019)
Article
Materials Science, Ceramics
M. Celikbilek Ersundu, A. E. Ersundu, N. Gedikoglu, E. Sakar, M. Buyukyildiz, M. Kurudirek
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2019)
Article
Materials Science, Ceramics
Y. S. Alajerami, D. Drabold, M. H. A. Mhareb, Katherine Leslee A. Cimatu, Gang Chen, M. Kurudirek
CERAMICS INTERNATIONAL
(2020)
Article
Biology
O. F. Ozpolat, B. Alim, E. Sakar, M. Buyukyildiz, M. Kurudirek
RADIATION AND ENVIRONMENTAL BIOPHYSICS
(2020)
Article
Chemistry, Physical
Erdem Sakar, Ozgur Firat Ozpolat, Bunyamin Alim, M. I. Sayyed, Murat Kurudirek
RADIATION PHYSICS AND CHEMISTRY
(2020)
Article
Spectroscopy
Parminder Kaur, K. J. Singh, Murat Kurudirek, Sonika Thakur
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Nuclear Science & Technology
M. Kurudirek, Y. Kurucu
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2020)
Article
Nuclear Science & Technology
M. Buyukyildiz, A. D. Kilic, D. Yilmaz
RADIATION EFFECTS AND DEFECTS IN SOLIDS
(2020)
Article
Materials Science, Ceramics
Parminder Kaur, K. J. Singh, Sonika Thakur, Murat Kurudirek
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2020)
Article
Chemistry, Multidisciplinary
Parminder Kaur, K. J. Singh, Sonika Thakur, Murat Kurudirek, Mustafa Mohammad Rafiei
Summary: The current study investigates the effect of gradual addition of Bi2O3 in Li2O-Sb2O3-B2O3 glass system, confirming changes in glass structure and properties through various analytical techniques. The addition of Bi2O3 resulted in increased sample density and durability, with simulated analysis showing improved γ-ray shielding properties.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Mustafa Mohammad Rafiei, Hossein Tavakoli-Anbaran, Murat Kurudirek
RADIATION PHYSICS AND CHEMISTRY
(2020)
Article
Radiology, Nuclear Medicine & Medical Imaging
Mustafa Mohammad Rafiei, Sara Parsaei, Parminder Kaur, K. J. Singh, Mehmet Buyukyildiz, Murat Kurudirek
Summary: The attenuation coefficients of water and several human tissues at low energy photons were estimated using the MCNP6.1 code. The results were compared with literature data and showed good agreement. Additionally, various parameters such as mean free path, half value layer, and effective atomic number were calculated using the obtained attenuation coefficients. The study also compared human tissues with tissue equivalent materials to identify the best match, with the muscle-equivalent liquid with sucrose found to be the best for certain tissues.
BIOMEDICAL PHYSICS & ENGINEERING EXPRESS
(2022)
Article
Instruments & Instrumentation
Mm Rafiei, S. Parsaei, M. Kurudirek
JOURNAL OF INSTRUMENTATION
(2020)
Proceedings Paper
Physics, Applied
Parminder Kaur, K. J. Singh, Murat Kurudirek, Sonika Thakur
DAE SOLID STATE PHYSICS SYMPOSIUM 2018
(2019)
Article
Instruments & Instrumentation
Jinlu Ruan, Liang Chen, Pengxiao Xu, Yapeng Zhang, Xue Du, Hongqiao Yin, Shiyi He, Fangbao Wang, Xun Zhang, Xiaoping Ouyang
Summary: A new SiC detector with a faster time response was developed to improve the temporal response of SiC-HPMTs. The improved SiC-HPMT showed significantly enhanced temporal response compared to the previous SiC-HPMT, and it can accurately measure the time information of fast pulsed radiation fields.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Kevin Nash
Summary: This article discusses the need for extensive upgrades of the LHC detectors, particularly the Outer Tracker, due to the demanding conditions and radiation of the High Luminosity LHC scenario. The design choices, technological approaches, and R&D activities for the Outer Tracker Phase-2 upgrade are highlighted.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
S. A. Wotton
Summary: The hadron particle identification provided by LHCb's RICH system is crucial for the success of the experiment, and it will continue to play a significant role in Upgrade II. To maintain the current excellent particle identification performance, substantial improvements in the precision of measuring the space and time coordinates of detected photons in the RICH and in the resolution of the reconstructed Cherenkov angle are required.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
R. Cardarelli, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciaccio, L. Di Stante, B. Liberti, E. Pastori, L. Pizzimento, G. Proto
Summary: The Resistive Cylindrical Chamber (RCC) is a new generation of gaseous particle detectors that overcome the limitations of Resistive Plate Chambers (RPC) and expand their application range. By transitioning from planar to cylindrical geometry, while maintaining an almost planar electric field, the RCC achieves improved detection efficiency, increased gas pressure, and the possibility of using eco-friendly gases.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Giacomo Volpe
Summary: The ALICE collaboration is proposing a new apparatus, ALICE 3, to investigate the Quark Gluon Plasma (QGP) properties. In this context, conceptual studies for the development of a RICH detector for ALICE 3 are ongoing. The proposed baseline layout is a proximity-focusing RICH, using aerogel as Cherenkov radiator and Silicon Photomultipliers for photon detection. The detector specifications and performance obtained by Monte Carlo simulation are presented, along with the R&D challenges related to the design.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. G. Mazarakis, E. Jongewaard, J. Ellsworth
Summary: This report presents experimental data and a step-by-step technique for evaluating the work functions of thermionic cathodes. The experiments were conducted using small-sized thermionic cathodes provided by Spectra-Mat corporation. The cathode electron current emission work function is emphasized as a crucial parameter for selecting cathodes in various applications.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. Loyd, A. Khaplanov, V. Sedov, J. Beal, T. Visscher, C. Donahue, C. Montcalm, G. Warren, R. Butz, C. Boone, C. Hart, R. Riedel, Y. Diawara
Summary: Thermal and cold neutron beamlines require detector systems with high efficiency, large active area, and good spatial resolution. This study presents a new design of Anger camera using silicon photomultipliers (SiPMs) instead of photomultiplier tubes (PMTs), offering better resolution, less distortion, and more compactness. The use of SiPMs also enables the camera to be used in strong magnetic fields, providing additional experimental capabilities.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Thomas Neulinger, Hanno Filter, Oliver Zimmer
Summary: This paper describes the mathematical foundation for analyzing vertical time-of-flight (TOF) measurements using ultracold neutrons (UCN). It enables the spectroscopy of UCN with kinetic energies below the neutron optical potential of the detector entrance window. The paper provides general treatment methods and transformation rules for converting vertical TOF spectra into other spectra of interest.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Huynh Dinh Chuong, Nguyen Huynh Duy Khang, Le Thi Ngoc Trang, Nguyen Thi Truc Linh, Truong Thanh Sang, Nguyen Thanh Dat, Hoang Duc Tam
Summary: This paper presents a comparative study of three models, including virtual point detector (VPD), curve fitting (CF), and machine learning (ML), in determining the full-energy peak efficiency (FEPE) of HPGe detector. The study found that the ML model outperforms VPD and CF models in terms of accuracy.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
M. H. Kushoro, M. Angelone, D. Bozzi, G. Gorini, F. La Via, E. Perelli Cippo, M. Pillon, M. Tardocchi, M. Rebai
Summary: This paper presents the characterization of a series of SiC detectors operated with partial polarization, achieving excellent energy resolution and detection characteristics for both alpha particles and neutrons. The results demonstrate the potential of SiC detectors for fast neutron detection in fusion experiments. The limitations and challenges for manufacturing thick SiCs in the future are also discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Deb Sankar Bhattacharya, Andrea Bressan, Chandradoy Chatterjee, Silvia Dalla Torre, Mauro Gregori, Alexander Kiselev, Stefano Levorato, Anna Martin, Saverio Minutoli, Mikhail Osipenko, Richa Rai, Marco Ripani, Fulvio Tessarotto, Triloki Triloki
Summary: In this article, we report on the measurement of the time resolution of an LAPPD prototype using Cherenkov radiation emitted by high energy hadrons. Our approach has demonstrated the capability of measuring time resolutions as fine as 25-30 ps. The measured time resolution for single photoelectrons is about 80 ps r.m.s.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Bharti Rohila, S. R. Abhilash, Diwanshu, Chetan Sharma, Devinder Mehta, Ashok Kumar
Summary: Self-supporting and Au backed Ag-107 targets have been fabricated using a combination of cold rolling and e-beam melting technique. The method is efficient, resulting in targets without significant material loss or major contamination. Various techniques have been used for thickness measurements and characterizations, and one of the fabricated targets has been successfully used in a nuclear physics experiment.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
B. Kronheim, A. Belloni, T. K. Edberg, S. C. Eno, C. Howe, C. Palmer, C. Papageorgakis, M. Paranjpe, S. Sriram
Summary: This paper presents measurements of the relative decrease of light output during irradiation of small plastic scintillator tiles read out by silicon photomultipliers. The study found substantial temporary damage during low-temperature irradiation, regardless of oxygen concentration and wrapping material. The wrapping material had an impact on the relative light loss, with the 3M(TM) Enhanced Specular Reflector Film showing the largest loss. The light loss was less at warmer temperatures and similar to that in standard atmosphere with 3% oxygen concentration. Evidence of a plateau in the radical density was seen for the data at 0 degrees C.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
V. V. Haurylavets, V. K. Ivanov, A. V. Korol, A. V. Solov'yov
Summary: Computational modeling of high-energy electron passage through crystalline media is conducted using relativistic molecular dynamics. The results show good agreement with experimental data, demonstrating the accuracy of the simulations. Minor discrepancies between theory and experiment are discussed.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)
Article
Instruments & Instrumentation
Luca Quaglia, R. Cardarelli, B. Liberti, E. Pastori, G. Proto, L. Pizzimento, A. Rocchi, G. Aielli, P. Camarri, A. Di Ciacco, L. Di Stante, R. Santonico, D. Boscherini, A. Bruni, L. Massa, A. Polini, M. Romano, L. Benussi, S. Bianco, D. Piccolo, G. Saviano, M. Abbrescia, L. Congedo, M. De Serio, G. Galati, G. Pugliese, S. Simone, D. Ramos, P. Salvini, A. Samalan, M. Tytgat, N. Zaganidis, J. Eysermans, A. Ferretti, M. Gagliardi, L. Terlizzi, E. Vercellin, P. Dupieux, B. Joly, S. P. Manen, R. Guida, B. Mandelli, G. Rigoletti, M. Barroso, M. C. Arena, A. Pastore, R. Aly, M. Verzeroli, S. Buontempo
Summary: Resistive Plate Chamber detectors are widely used in current High Energy Physics experiments. However, efforts are being made to find eco-friendly gas alternatives to Tetrafluoroethane. The RPC EcoGas@GIF++ collaboration aims to improve RPC technology, evaluate the performance of RPCs with eco-friendly gas mixtures, and conduct aging tests.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2024)