Effect of proton irradiation on the performance of fluxgate sensors

2023-04-25
İÇİN, KÜRŞAT
Can, H.
Akyol, S.
Uslu Kiçeci, P.
Topal, U.
ÖZTÜRK, SEDA
Demirköz, Melahat Bilge
Sözeri, H.
The fluxgate magnetometers have been used in many space missions due to their stability, low cost, low mass, and good measuring sensitivity and range. Space weather conditions around the Earth and solar system may be dangerous for the sensors of these crucially important devices. Proton irradiation was used to simulate space weather conditions near the Earth's magnetosphere in Van Allen belts. The effect of proton irradiation on the structural, magnetic, and sensor performance of our fluxgate sensors was studied with irradiation doses up to 60 kRad. Sensor's materials were prepared using a planar flow casting technique having two different compositions, namely Fe38Co38Mo8CuB15 (Fe38) and Fe42Co42CuB15 (Fe42). Structural investigation of the alloys was performed by X-ray diffraction patterns and SEM micrographs. A magnetic force microscope and vibrating sample magnetometer were used to investigate surface and bulk magnetic properties, respectively. The characterization of the sensors was done by determination of the working field range, transfer function, and noise at 1 Hz. The amorphous structure of the Fe38Co38Mo8CuB15 alloy did not change with irradiation, while some degree of crystallization was depicted in the Fe42Co42CuB15 alloy, probably due to the local heating of the ribbon. The formation of magnetic domains was clearly observed in Fe38Co38Mo8CuB15 alloy in MFM images after the irradiation. On the contrary, it was not observed in Fe42Co42CuB15 alloy due to excessive domain growth. The magnetic parameters, namely coercivity (Hc) and saturation magnetization (Ms) were affected by the proton irradiation in a different way. The former increases with irradiation dose, while the latter first decreases and then rises to its initial value or a little smaller. On the other hand, with increasing doses, for both alloys, the transfer functions of the sensors show a decrease while the noise increases substantially. The noise parameters of the sensors were raised 4–5 times after the maximum irradiation dose; similarly, sensitivities decreased more than 100 times.
Journal of Alloys and Compounds

Suggestions

Effect of liner material and explosive type on penetration effectiveness of shaped charge
Zaki, S.; Uddin, Emad; Rashid, B.; Mubashar, A.; Shah, Samiur R. (2019-07-01)
Shaped charges are used in many civilian and military applications. This study focuses on the effects of liner material and the type of explosive on the development of shaped charge jet. This was carried out by experimentation and numerical finite element-based modelling. Shaped charges were tested on a steel plate during the experimentation and the experimental data were used to validate the developed numerical model of the shaped charge. A hydrocode-based finite element model was able to predict the perfo...
Effect of ECAP and post-aging processes on 2024 aluminum alloy
Saraloglu, Ebru; Tan, Evren; Gür, Cemil Hakan (2008-01-01)
Strength of aluminum alloys can be remarkably improved by obtaining ultrafine grain size via severe plastic deformation. Equal Channel Angular Pressing (ECAP) is considered to be a good candidate that is capable to produce bulk components. In this study, the combined effects of ECAP and post-aging treatment on the mechanical properties of aluminum alloys were investigated. An ECAP die with 120 degrees channel angle was used for severe plastic deformation of 2024 Al-alloy. The ECAPed specimens revealed highe...
Effect of proton scavengers on the textural properties and performance of Fe2O3 xerogels for boron containing pyrotechnics
Yilmaz, Nil E. Dinçer; Karakaş, Gürkan (2017-01-01)
Currently used rockets and missile igniter systems are mostly based on the pyrotechnic blends of fuels and oxidizers. In this study nano-sized boron was used as fuel because of its high heat of combustion, low atomic weight and high energy density. Iron oxide was used as an oxidizer and synthesized by sol-gel method by using various types of proton scavengers. In the experiments Fe(NO3)3·9H2O was used as a precursor and a wide range of proton scavengers (propylene oxide, 1,2 epoxybutane, tetrahydrofuran, te...
Effect of temperature on fatigue properties of Din 35 NiCrMoV 12 5 steel
Önem, Orkun Umur; Gürbüz, Rıza; Department of Metallurgical and Materials Engineering (2003)
DIN 35NiCrMoV125 (equivalent to AISI 4340), which is a high strength low alloy steel (HSLA), is mainly used at military applications in the production of gun barrels. The main aim of this study was to determine the low cycle fatigue (LCF) behaviour and the influence of temperature on low cycle fatigue failure properties of that steel. Three different temperatures (room temperature, 2500C and 4000C) were used in the experiments in order to analyze the effect of temperature. For each temperature, five strain ...
Effect of cooling rate on microstructure and high temperature stability of rapidly solidified Al-Fe-V-Si alloys
Kalkanlı, Ali (Informa UK Limited, 1999-01-01)
Recently, AI-Fe-V-Si alloys have received more attention owing to their high temperature stability associated with vanadium rich precipitates and silicides. In this work, a series of alloys was prepared and processed by melt spinning and gas atomisation to observe the effect of solidification rate on crystal structures existing in both as cast and heat treated conditions. This study covers their microstructural examination and crystallography. The composition of these alloys was Al-(6.8-7.8)Fe-( 1.0-3)V-(1....
Citation Formats
K. İÇİN et al., “Effect of proton irradiation on the performance of fluxgate sensors,” Journal of Alloys and Compounds, vol. 941, pp. 0–0, 2023, Accessed: 00, 2023. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85146912288&origin=inward.