Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment最新文献

{"title":"Retraction notice to “Quadrupole multiplet for medium energy beam transport for proton improvement plan −2” [Nuclear Inst. Methods Phys. Res. A 1061(2024) NIMA_169123]","authors":"Vikas Teotia, Sanjay Malhotra","doi":"10.1016/j.nima.2025.170405","DOIUrl":"10.1016/j.nima.2025.170405","url":null,"abstract":"","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170405"},"PeriodicalIF":1.5,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction notice to “Tunable and temperature compensated permanent magnet assemblies for green particle accelerators” [Nuclear Inst. Methods Phys. Res. A 1068 (2024) NIMA_169738]","authors":"Vikas Teotia, Sanjay Malhotra","doi":"10.1016/j.nima.2025.170404","DOIUrl":"10.1016/j.nima.2025.170404","url":null,"abstract":"","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170404"},"PeriodicalIF":1.5,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mass production of RPC readout panels for ATLAS Phase-II upgrade and R&D on thin gas gap production at USTC","authors":"Dongshuo Du,&nbsp;on behalf of the ATLAS Muon Collaboration","doi":"10.1016/j.nima.2025.170400","DOIUrl":"10.1016/j.nima.2025.170400","url":null,"abstract":"<div><div>In order to accommodate the High-Luminosity Large Hadron Collider, the current ATLAS Muon system needs a significant upgrade during the Long Shutdown-3. For the muon trigger, three layers of thin-gap Resistive Plate Chambers (RPCs) will be added to the Barrel Inner (BI) region. This new generation of RPCs features a thin-gap design that significantly enhances their rate capabilities. However, it poses significant challenges for detector production, Quality Assurance and Quality Control. Our Chinese ATLAS group undertook the construction of 912 readout panels, the fabrication of 72 BI gas gaps, and the assembly of 360 singlets for the upgrade. To successfully implement the BI-RPC project in China, we have developed and refined a vacuum-bag-based method for producing honeycomb readout panels in our laboratory. This method is also utilized in the production of readout panels in the Chinese industry. The speed and quality of readout panel production have significantly improved. The procedures for gas gap production and the assembly of RPC singlets are outlined in detail. The gas gaps are treated with oil at a temperature of around 40 degrees Celsius and flushed with heptane before the application of linseed oil. This process can greatly enhance the quality of linseed oiling on the inner surfaces of the Bakelite RPC. The quality of the gas gaps is assessed and the results are very promising.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170400"},"PeriodicalIF":1.5,"publicationDate":"2025-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Observation of X-ray transition radiation from a relativistic electron passing a stack of plates","authors":"V.R. Kocharyan ,&nbsp;G. Kube ,&nbsp;S. Strokov ,&nbsp;S.N. Noreyan ,&nbsp;H.F. Khachatryan ,&nbsp;V.V. Margaryan ,&nbsp;Y.M. Cherepennikov ,&nbsp;A.P. Potylitsyn","doi":"10.1016/j.nima.2025.170418","DOIUrl":"10.1016/j.nima.2025.170418","url":null,"abstract":"<div><div>The results of experimental observations of resonant transition radiation (RTR) with energies ranging from 8 to 200 keV using stacks of thin aluminium foils (thickness a = 10 μm) separated by layers of either air (radiator no. 1) or Teflon (radiator no. 2) (thickness b = 100 μm). Period of both radiators was fixed (d = a + b = 110 μm). For the studied energy interval, a radiation formation length was larger than period for radiator 1 and was less for radiator 2. For the previous one we observed a reasonable agreement between experiment and theory, but for the latter one we observed some discrepancy.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170418"},"PeriodicalIF":1.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intensity ratios of ILβ/ILα and ILγ/ILα: Semi-theoretical formulae for diverse elements under photon excitation with 1.9 keV < Einc ≤ 200 keV","authors":"A. Zidi ,&nbsp;A. Kahoul ,&nbsp;J.P. Marques ,&nbsp;K. Amari ,&nbsp;S. Daoudi ,&nbsp;J.M. Sampaio ,&nbsp;F. Parente ,&nbsp;A. Hamidani ,&nbsp;S. Croft ,&nbsp;A. Favalli ,&nbsp;Y. Kasri ,&nbsp;B. Berkani","doi":"10.1016/j.nima.2025.170416","DOIUrl":"10.1016/j.nima.2025.170416","url":null,"abstract":"<div><div>The main objective of this paper is to calculate semi-theoretical values for the L-shell X-ray intensity ratios <span><math><mrow><msub><mi>I</mi><mrow><mi>L</mi><mi>i</mi></mrow></msub><mo>/</mo><msub><mi>I</mi><mrow><mi>L</mi><mi>α</mi></mrow></msub></mrow></math></span> (<em>i</em> = <span><math><mrow><mi>β</mi></mrow></math></span> and γ) across a broad range of elements in the atomic number range 36 ≤ <em>Z</em> ≤ 92 and photon excitation energies spanning from 1.916 keV to 200 keV. These values are derived from theoretical calculations and subsequently refined using an advanced interpolation approach based on a three-dimensional function incorporating atomic number <em>Z</em> and excitation energy <em>E</em>. The dependence of the L-shell intensity ratios on the incident photon energy is analyzed, highlighting variations across different elements. A comparison was carried out for selected excitation energies of 22.6 keV and 59.54 keV, integrating weighted average values, theoretical calculation, and experimental data from the literature to evaluate their reliability and accuracy.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170416"},"PeriodicalIF":1.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stability studies of sealed (zero gas flow) resistive plate chambers","authors":"A. Blanco ,&nbsp;P. Fonte ,&nbsp;L. Lopes ,&nbsp;M. Pimenta","doi":"10.1016/j.nima.2025.170396","DOIUrl":"10.1016/j.nima.2025.170396","url":null,"abstract":"<div><div>The phase-out of hydro-fluorocarbons, owing to their high Global Warming Potential, affecting the main gas used in Resistive Plate Chambers (RPCs), tetrafluoroethane C<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>H<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span>F<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>, has increased operational difficulties on existing systems and imposes strong restrictions on its use in new systems.</div><div>This has motivated a new line of R&amp;D on sealed RPCs: RPCs that do not require a continuous gas flow for their operation and dispense the use of very complex and expensive re-circulation and/or recycling gas systems.</div><div>In this work, we demonstrate the feasibility of a small telescope for atmospheric muon tracking consisting of four 300 × 300 mm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span> sealed RPCs with gas gap widths of <span><math><mrow><mn>1</mn><mspace></mspace><mi>mm</mi></mrow></math></span>, <span><math><mrow><mn>1</mn><mo>.</mo><mn>5</mn><mspace></mspace><mi>mm</mi></mrow></math></span> and <span><math><mrow><mn>2</mn><mspace></mspace><mi>mm</mi></mrow></math></span>. The results suggest that it is possible to operate this type of detectors for extended periods of time (more than five months) with its main characteristics, efficiency, average charge and streamer probability, without apparent degradation and similar to a RPC operated in continuous gas flow.</div><div>However, this paper does not prove that sealed RPC can cover all fields of application normally attributed to RPCs. Much more testing would be needed to prove that sealed RPCs can be used in other conditions, especially at high rate and for extended periods of operation and large scales, like e.g. in LHC experiments at CERN.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170396"},"PeriodicalIF":1.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601729","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Radiation Tolerance of the LHCb Outer Tracker: In the Lab and in the Forward Region at the LHC","authors":"N. Tuning ,&nbsp;S. Bachmann ,&nbsp;A. Pellegrino ,&nbsp;U. Uwer ,&nbsp;D. Wiedner","doi":"10.1016/j.nima.2025.170395","DOIUrl":"10.1016/j.nima.2025.170395","url":null,"abstract":"<div><div>During the detector construction phase between 2004 and 2006, it was discovered that the LHCb Outer Tracker (OT) detector suffered from gain loss after irradiation in the laboratory at moderate intensities. Under irradiation an insulating layer was formed on the anode wire. The aging was caused by contamination of the counting gas due to outgassing of the glue used in construction namely araldite AY103-1. The gain loss was concentrated upstream the gas flow, and at moderate irradiation intensity only. The aging rate was reduced by longterm flushing and by the addition of a few percent of O<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> to the gas mixture. Furthermore, applying a large positive high voltage (beyond the amplification regime) has shown to remove the insulating deposits without damaging the wire surface. This paper presents the history of the developments together with the characteristics and the culprit of the aging phenomenon and the resulting detector performance in situ.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170395"},"PeriodicalIF":1.5,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-beam tests of double-sided silicon strip detector modules for the BM@N experiment","authors":"D. Dementev ,&nbsp;R. Arteche Diaz ,&nbsp;C. Ceballos Sanchez ,&nbsp;A. Kolozhvari ,&nbsp;V. Leontyev ,&nbsp;N. Maltsev ,&nbsp;Yu. Murin ,&nbsp;A. Rodriguez Alvarez ,&nbsp;I. Rufanov ,&nbsp;A. Sheremetev ,&nbsp;M. Shitenkov ,&nbsp;V. Zherebchevsky","doi":"10.1016/j.nima.2025.170390","DOIUrl":"10.1016/j.nima.2025.170390","url":null,"abstract":"<div><div>The results of the in-beam tests of the final version of the DSSD modules for the Silicon Tracking System of BM@N experiment at JINR NICA facility are presented. Each module consists of a double-sided microstrip silicon sensor and front-end electronics connected to each other via low-mass aluminum microcables. Investigations of the module characteristics and tests of the readout electronics were done at proton synchrocyclotron SC-1000 in Petersburg Nuclear Physics Institute. Signal-to-noise ratio, spatial resolution and detection efficiency were measured. Performance of the areas with strips with a second metallization layer and strips with bonding failures was studied. Dependencies of the main operation parameters of the modules on the bias voltage and ADC threshold were also obtained. The average registration efficiency of the modules resulted in values higher than 99% with signal-to-noise ratio typical values for both sides of the sensor not less than 21 and a spatial resolution of <span><math><mrow><mn>15</mn><mo>.</mo><mn>4</mn><mspace></mspace><mi>μ</mi><mi>m</mi></mrow></math></span>.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170390"},"PeriodicalIF":1.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143621516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A modular muon telescope for tomography and radiography applications","authors":"Abhishek ,&nbsp;R. Karnam ,&nbsp;V.K.S. Kashyap ,&nbsp;B. Mohanty","doi":"10.1016/j.nima.2025.170399","DOIUrl":"10.1016/j.nima.2025.170399","url":null,"abstract":"<div><div>Cosmic-ray muons undergo multiple Coulomb scattering when passing through a material. Muon tomography is a non-invasive technique that exploits this feature of cosmic-ray muons and produces projectional image of the target volume. A tracking detector is simulated with four layers of Resistive Plate Chambers (RPC) of active area 160 × 160 mm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>, two for each upper and lower tracker. A Lead block of size 100 × 100 × 100 mm<span><math><msup><mrow></mrow><mrow><mn>3</mn></mrow></msup></math></span> is placed between the upper and lower trackers and its image is reconstructed using the Point of Closest Approach (PoCA) algorithm. The image reconstruction is further improved by implementing the Binned Clustering Algorithm (BCA). The simulation studies demonstrated that the designed muon telescope can distinguish high and medium atomic number (Z) materials and BCA can be used to image a miniature spent nuclear fuel dry cask. For building the tracker, four RPCs and four acrylic casings, to house the RPCs and signal readouts, are constructed. The measured cosmic-ray muon detection efficiency of RPC is <span><math><mo>∼</mo></math></span>95%. For the airtightness test, the relative humidity is monitored inside the acrylic casing for about 30 days. The design of the muon telescope, simulation studies and detector development activities are discussed.</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170399"},"PeriodicalIF":1.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards a Pixel TPC part I: Construction and test of a 32-chip GridPix detector","authors":"M. van Beuzekom ,&nbsp;Y. Bilevych ,&nbsp;K. Desch ,&nbsp;S. van Doesburg ,&nbsp;H. van der Graaf ,&nbsp;F. Hartjes ,&nbsp;J. Kaminski ,&nbsp;P.M. Kluit ,&nbsp;N. van der Kolk ,&nbsp;C. Ligtenberg ,&nbsp;G. Raven ,&nbsp;J. Timmermans","doi":"10.1016/j.nima.2025.170397","DOIUrl":"10.1016/j.nima.2025.170397","url":null,"abstract":"<div><div>A Time Projection Chamber (TPC) module with 32 GridPix chips was constructed and the performance was measured using data taken in a testbeam at DESY in 2021. The GridPix chips each consist of a Timepix3 ASIC (TPX3) with an integrated amplification grid and have a high efficiency of about 85% to detect single ionisation electrons. In the testbeam setup, the module was placed in between two sets of Mimosa26 silicon detector planes that provided external high-precision tracking and the whole detector setup was slid into the PCMAG magnet at DESY. The TPC could be operated reliably and used a 95/3/2 gas mixture (by volume) of Ar/CF<span><math><mn>4</mn></math></span>/iC<span><math><msub><mrow></mrow><mrow><mn>4</mn></mrow></msub></math></span>H₁₀ with a small amount of oxygen and water vapour. The analysed data were taken at electron beam momenta of 5 and 6 GeV/c and at magnetic fields of 0 and 1 T.</div><div>The result for the transverse diffusion coefficient <span><math><msub><mrow><mi>D</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> is (287.2 ± 0.5) <span><math><mi>μ</mi></math></span>m/<span><math><msqrt><mrow><mi>cm</mi></mrow></msqrt></math></span> at <span><math><mi>B</mi></math></span> = 0 T and <span><math><msub><mrow><mi>D</mi></mrow><mrow><mi>T</mi></mrow></msub></math></span> (120.3 ± 0.5) <span><math><mi>μ</mi></math></span>m/<span><math><msqrt><mrow><mi>cm</mi></mrow></msqrt></math></span> at <span><math><mi>B</mi></math></span> = 1 T. The longitudinal diffusion coefficient <span><math><msub><mrow><mi>D</mi></mrow><mrow><mi>L</mi></mrow></msub></math></span> is measured to be (251 ± 14) <span><math><mi>μ</mi></math></span>m/<span><math><msqrt><mrow><mi>cm</mi></mrow></msqrt></math></span> at <span><math><mi>B</mi></math></span> = 0 T and (224 ± 14) <span><math><mi>μ</mi></math></span>m/<span><math><msqrt><mrow><mi>cm</mi></mrow></msqrt></math></span> at <span><math><mi>B</mi></math></span> = 1 T. Results for the tracking systematical uncertainties in <span><math><mrow><mi>x</mi><mi>y</mi></mrow></math></span> (pixel plane) were measured to be 13 <span><math><mi>μ</mi></math></span>m with and without magnetic field. The tracking systematical uncertainties in <span><math><mi>z</mi></math></span> (drift direction) were 15 <span><math><mi>μ</mi></math></span>m (<span><math><mi>B</mi></math></span> = 0 T) and 20 <span><math><mi>μ</mi></math></span>m (<span><math><mi>B</mi></math></span> = 1 T).</div></div>","PeriodicalId":19359,"journal":{"name":"Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment","volume":"1075 ","pages":"Article 170397"},"PeriodicalIF":1.5,"publicationDate":"2025-03-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143628036","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}