المؤلفون: Ming Shao, Zhiyong Zhang, Daojin Hong, Jianxin Feng, You Lv, Jianbei Liu, Song Guofeng, Yi Zhou, Wang Xu, Shang Lunlin

المصدر: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 927:31-36

مصطلحات موضوعية: Physics, Nuclear and High Energy Physics, Resistive touchscreen, Fabrication, Diamond-like carbon, 010308 nuclear & particles physics, business.industry, Detector, STRIPS, Sputter deposition, 01 natural sciences, Cathode, 030218 nuclear medicine & medical imaging, law.invention, 03 medical and health sciences, 0302 clinical medicine, law, 0103 physical sciences, Electrode, Optoelectronics, business, Instrumentation

الوصف: The Micro-Resistive WELL ( μ RWELL) detector is a novel spark-protected Micro-Pattern Gaseous Detector (MPGD) with a single well-type amplification stage. By integrating a well-type amplification structure with a resistive electrode on a readout board ( μ RWELL PCB), the μ RWELL detector is only composed of a cathode PCB and a μ RWELL PCB, resulting in a very simple assembling process without any gluing, stretching, tensioning or other complicated operation commonly practiced in assemblies of other MPGDs. A critical component of the μ RWELL detector is the resistive electrode that is responsible for spark suppression, and hence maintains stable operation of the detector. In this paper, we present a 10 cm × 10 cm μ RWELL detector with two layers readout strips perpendicular to each other. Its resistive electrode is made of a thin coating of Diamond-Like Carbon by magnetron sputtering technique. The gain performance and rate capability of this μ RWELL detector were systematically studied with X-rays, and its detection efficiency and spatial resolution were measured with a test beam. The detector can achieve a spatial resolution better than 70 μ m in both dimensions while the detection efficiency is higher than 90%.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::f621d2dc1409c47d6b3338bc79a60e76Test
https://doi.org/10.1016/j.nima.2019.01.036Test

المؤلفون: Wang Xu, Ming Shao, Zhiyong Zhang, Chengming Liu, Jianbei Liu, Binbin Qi, Yi Zhou, Wenhao You, You Lv, Jianxin Feng, Song Guofeng, Daojin Hong

المصدر: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 889:78-82

مصطلحات موضوعية: Physics, Nuclear and High Energy Physics, Photomultiplier, Resolution (mass spectrometry), Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, business.industry, MicroMegas detector, Electron, 01 natural sciences, Ion, Single electron, Full width at half maximum, 0103 physical sciences, Optoelectronics, 010306 general physics, business, Instrumentation, Backflow

الوصف: Application of micro-pattern gaseous detectors to gaseous photomultiplier tubes has been widely investigated over the past two decades. In this paper, we present a double micro-mesh gaseous structure that has been designed and fabricated for this application. Tests with X-rays and UV laser light indicate that this structure exhibits an excellent gas gain of > 7 × 1 0 4 and good energy resolution of 19% (full width at half maximum) for 5.9 keV X-rays. The gas gain can reach up to 1 0 6 for single electrons while maintaining a very low ion-backflow ratio down to 0.0005. This structure has good potential for other applications requiring a very low level of ion backflow.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::01593e7f016a586b8a81598b897761aaTest
https://doi.org/10.1016/j.nima.2018.02.006Test

المؤلفون: Zhiyong Zhang, Chengming Liu, Binbin Qi, You Lv, Jianbei Liu, Wenhao You, Ming Shao, Song Guofeng, Daojin Hong, Wang Xu, Jianxin Feng, Yi Zhou

المصدر: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 952:161978

مصطلحات موضوعية: Physics, Nuclear and High Energy Physics, Photon, Physics::Instrumentation and Detectors, business.industry, Photon detector, MicroMegas detector, Electron, Gaseous detectors, Optoelectronics, business, Thermal bonding, Instrumentation, Photon detection, Laser light

الوصف: Application of micro-pattern gaseous detectors (MPGD) to photon detection has been widely investigated over the past decades. A double micro-mesh gaseous structure (DMM) prototype is developed with a thermal bonding technique for this application. Excellent performance for detecting single photon has been demonstrated in various tests with X-ray and ultra-violet (UV) laser light. The gain of the DMM prototype can reach up to >106 for single electrons while maintaining a very low ion-backflow (IBF) ratio down to

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::bb19e301b8d08a61a426678b7a5fab44Test
https://doi.org/10.1016/j.nima.2019.03.033Test