PECULIARITIES OF THE SURFACE FLAW DETECTION BY ELASTIC WAVES SIMULATED BY PULSE-LASER RADIATION by А. R. Bаеv, A. I. Мitkovets, D. A Коstiuk, G. E. Konovalov

“…The more informative parameter to find crack with small width (≈ 0.5mm) was the acoustical pulse spectrum or the pulse entrance part. Thus, the further increasing of the surface flaw detection may be realized by laser simulation of the surface waves controlling the form of the moving spot of laser beam. …”
Get full text

Ultrafast Laser Beam Profile Characterization in the Front-End of the ELI-NP Laser System Using Image Features and Machine Learning by Tayyab Imran

“…Ultrafast laser systems, implemented at the ELI-NP, require exceptional beam quality and spatial stability due to their femtosecond pulse durations and extremely high peak powers. …”
Get full text

Feasibility of an Inductive Pedicle Screw Loosening Detection Concept Using a Pulse Induction Metal Detector by Ramon Rohner, David E. Bauer, Martin Hartmann, Tobias Gotschi, Mazda Farshad, Jonas Widmer

“…The aim of this study was to provide a proof of concept of a novel, non-invasive, inductive sensing device for transcutaneous detection of screw loosening using a pulse induction metal detector. …”
Get full text

Cantilever beam-based piezoelectric micromachined ultrasonic transducer with post processing soft interconnecting strategy for in-air rangefinding by Yan Wang, Peng Chen, Junning Zhang, Zihan Li, Hongbin Yu

“…Abstract Despite of good performance immunity to stress and high transmitting/receiving sensitivity advantages, the fabrication imperfection induced asynchronous vibration and the resultant prolonged ring-down tail severely limit the potential of the cantilever beam-based piezoelectric micromachined ultrasonic transducer (PMUT) in pulse-echo applications as transceiver. …”
Get full text

Performance Characteristics of the Battery-Operated Silicon PIN Diode Detector with an Integrated Preamplifier and Data Acquisition Module for Fusion Particle Detection by Allan Xi Chen, Benjamin F. Sigal, John Martinis, Alfred YiuFai Wong, Alexander Gunn, Matthew Salazar, Nawar Abdalla, Kai-Jian Xiao

Get full text

Search for Fast Radio Bursts and Radio Pulsars from Pulsing Ultraluminous X-Ray Sources by Juntao Bai, Na Wang, Rui Luo, Wei-Yang Wang, Shi Dai, Songbo Zhang, Shiqian Zhao, Shuangqiang Wang

“…Additionally, the beaming factor and luminosity of FRBs associated with PULXs, as well as the highly relativistic and magnetized nature of their outflows, may limit detectability. …”
Get full text

A Detailed Single-pulse Study of Four-component Pulsar PSR J1239+0326 Discovered by FAST by R. Rejep, W. W. Zhu, N. Wang, W. M. Yan, J. P. Yuan, M. Kramer, L. Q. Meng, E. Gügercinoğlu, M. Yuan, W. Y. Wang, Z. W. Wu, Q. D. Wu, D. Zhao, S. Q. Wang, H. M. Tedila, S. J. Dang, M. Y. Xue, P. Wang, The FAST Collaboration

Get full text

Effective method of prompt detection of radiolocation target by A. D. Lobanov, A. I. Schemelev

“…The article reviews radar operation mode where the absence of radar targets at the direction of probing pulse emission is determined in one period of pulse with high probability of PCDF (correct detection failure). …”
Get full text

Light Output Function and Pulse-Shape Discrimination Capability of p-Terphenyl Organic Scintillator in Wide Neutron Energy Range of 1.1 to 19 MeV by Aleš Jančář, Zdeněk Kopecký, Jiří Čulen, Zdeněk Matěj, Michal Košťál

“…The pulse-shape discrimination capability, as well as the detection efficiency, of a p-Terphenyl scintillator are lower in comparison with a NE-213 equivalent detector.…”
Get full text

A Trimming Strategy for Mass Defects in Hemispherical Resonators Based on Multi-Harmonic Analysis by Yimo Chen, Fanrui Kong, Kai Zeng, Xiang Xi, Yan Shi, Dingbang Xiao, Xuezhong Wu

Get full text

A solid-state infrared laser for two-step desorption–ionization processes in single-particle mass spectrometry by M. Schmidt, M. Schmidt, M. Schmidt, H. Hakkim, H. Hakkim, H. Hakkim, L. Anders, L. Anders, L. Anders, A. Kalamašņikovs, A. Kalamašņikovs, A. Kalamašņikovs, T. Kröger-Badge, T. Kröger-Badge, T. Kröger-Badge, R. Irsig, R. Irsig, N. Graf, R. Kelnberger, J. Passig, J. Passig, J. Passig, R. Zimmermann, R. Zimmermann, R. Zimmermann

“…However, the laser desorption (LD) of organic material from particles prior to their ionization in a two-step process necessitates pulsed infrared lasers with adequate pulse energy that can be irregularly triggered on detected particles. …”
Get full text

Spectral and temporal properties of type-II parametric down-conversion: The impact of losses during state generation by Denis A. Kopylov, Michael Stefszky, Torsten Meier, Christine Silberhorn, Polina R. Sharapova

“…Our theoretical approach is based on the formalism of Gaussian states and the Langevin equation, which is elaborated for weak parametric down-conversion and photon-number-unresolved click detection. Using the example of frequency-degenerate type-II SPDC generated under the pump-idler group-velocity-matching condition, we show how the joint-spectral intensity, mode structure, normalized second-order correlation function, and Hong-Ou-Mandel interference pattern depend on internal losses of the SPDC process. …”
Get full text

Spatially Resolved Brillouin Spectral Hole Burning in PMF and SMF by Xiaoxuan Zhong, Hao Liang, Linghao Cheng, Jie Li, Liang Chen, Xiaoyi Bao, Bai-ou Guan

“…We observe the spectral hole burning effect in a polarization maintain fiber (PMF) and a single-mode fiber (SMF) through the interaction between a continuous wave (CW) beam and a high power pulse with two frequency components located around the Stokes and anti-Stokes frequencies of the CW beam. …”
Get full text

Method for evaluating the performance of antiskid devices by I. A. Zharov, A. A. Alekseev

“…Processing pulses can be different. In this paper considers the case when the number of pulses is counted with the periodicity Δ t . …”
Get full text

Virtual Frisch grid perovskite CsPbBr3 semiconductor with 2.2-centimeter thickness for high energy resolution gamma-ray spectrometer by Haoming Qin, Bao Xiao, Xuchang He, Xiao Ouyang, Tingting Gao, Yuquan Wang, Luyao Wang, Qihao Sun, Nannan Shen, Xiaoping Ouyang, Yihui He

Get full text

Ultrasonic study of polycrystalline TMZF alloy at cryogenic temperatures by Ariel Omar Moreno Gobbi, Paulo Sergio Silva Junior, Diego Rafael Nespeque Correa, Rafael Formenton Macedo dos Santos, Javier Andrés Muñoz Chaves, Carlos Roberto Grandini, Conrado Ramos Moreira Afonso

“…In this study, the phase stability of the polycrystalline TMFZ (Ti–12Mo–6Zr–2Fe, wt%) alloy, produced by electron beam melting and thermomechanically processed through swaging, was evaluated by ultrasonic measurements at cryogenic temperatures. …”
Get full text

Study on Method of Measuring Ionization Energy Loss of Time Projection Chamber Using UV Laser by CHANG Yue1, 2, QI Huirong2, 3, SHE Xin2, 3, ZHANG Jinxian2, 3, YU Chunxu1, ZHAO Guang2, 3, WU Linghui2, 3, DENG Zhi4, WANG Jianchun2, 3

Get full text

Deep Searches for Radio Pulsations and Bursts from Four Magnetar and a Magnetar-like Pulsar with FAST by Juntao Bai, Na Wang, Shi Dai, Shuangqiang Wang, Jianping Yuan, Wenming Yan, Lunhua Shang, Xin Xu, Shijun Dang, Zhen Zhang

Get full text

CHIME All-sky Multiday Pulsar Stacking Search (CHAMPSS): System Overview and First Discoveries by Christopher Andrade, P. J. Boyle, Charanjot Brar, Alyssa Cassity, Kathryn Crowter, Davor Cubranic, Abigail K. Denney, Fengqiu Adam Dong, Emmanuel Fonseca, Victoria M. Kaspi, Ajay Kumar, Lars Künkel, Magnus L’Argent, Dustin Lang, Robert A. Main, Kiyoshi W. Masui, Sujay Mate, Juan Mena-Parra, Bradley W. Meyers, Cherry Ng, Aaron B. Pearlman, Ue-Li Pen, Scott M. Ransom, Alexander P. Roman, Kendrick Smith, Reynier Squillace, Ingrid Stairs, Chia Min Tan, Laurent Tarabout, Wenke Xia, Tarik J. Zegmott, (The CHAMPSS Collaboration)

“…CHAMPSS uses the CHIME/FRB datastream, which consists of 1024 stationary beams streaming intensity data at 0.983 ms resolution, with 16,384 frequency channels across 400–800 MHz, continuously being searched for single, dispersed bursts/pulses. …”
Get full text

Recent data on fusion far below the barrier for 12C + 28Si by Montagnoli G., Del Fabbro M., Stefanini A. M., Balogh M., Goasduff A., Andreetta G., Angelini F., Benito J., Bonhomme A., Brugnara D., Colucci G., Corradi L., Courtin S., Depalo R., Ertoprak A., Fioretto E., Galtarossa F., Servin B. Gongora, Gottardo A., Gozzelino A., Heine M., Mazzocco M., Mengoni D., Million B., Monpribat E., Del Alamo R. Nicolas, Pellumaj J., Vidal R.M. Perez, Pigliapoco S., Pilotto E., Polettini M., Rezynkina K., Rocchini M., Stramaccioni D., Szilner S., Trzcinska A., Dobon J. Valiente, Zago L., Zanon I.

“…We measured the fusion excitation function of 12C + 28Si down to hundreds of nanobarns, using 28Si beams from the XTU Tandem accelerator of LNL. The charged particles evaporated after the fusion process were detected by two DSSDs around the target. …”
Get full text