Development and Calibration of a Three-Directional High-Energy Particle Detector for FY-3E Satellite

Shen, Guohong; Zhang, Xiaoxin; Wang, Jinhua; Huang, Chan; Li, Jiawei; Zhang, Shenyi; Zhang, Xianguo; Yang, Yong; Zhang, Pengfei; Sun, Yueqiang

doi:10.3390/aerospace10020173

Cited by 5 publications

(5 citation statements)

References 21 publications

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“…The task of the MEPD on the FY-4B satellite is to achieve a wide energy spectrum detection of 30 keV-1 MeV particles in 18 directions, including 9 directions divided along the meridian plane and another 9 directions divided along the equatorial plane, and to divide them into 12 energy channels in each direction. The actual measurement range is consistent with the detector on the FY-3E satellite [8,9], which is 30 keV-5 MeV. Detailed scientific indicators are shown in Table 1.…”

Section: Mission Requirementssupporting

confidence: 54%

Medium-Energy Proton Detector Onboard the FY-4B Satellite

Zhang,

Shen

et al. 2023

Aerospace

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This work introduces the instrument design of the medium-energy proton detector (MEPD, detection range: 30 keV–5 MeV) mounted on the Chinese Fengyun-4B (FY-4B) satellite. Compared to a similar detector on the Fengyun-3E (FY-3E) satellite, this instrument has undergone significant changes due to the different orbital radiation environment and solar lighting conditions. Based on the calculation of the radiation model AP8, the geometrical factor is reduced to 0.002 cm2sr, while that of the MEPD on the FY-3E satellite is 0.005 cm2sr. Another difference is that the sensors in some directions are exposed to direct sunlight for 80 min every day on this orbit, depending on the attitude angle of the satellite, which is much worse than that on the FY-3E satellite. According to the calculation results of transmittance of photons through different materials, a 100 nm thickness nickel film is added in front of the sensors to eliminate light pollution completely. The test using a solar simulator shows that the measure is effective and the detector has no error count when the solar irradiance coefficient is 1.0. In addition, the Geant4 software is applied to simulate the particle transportation process under complete machine condition to check the contamination of electrons in the sensors in all directions after magnetic deflection. The data obtained in orbit show that the instrument works properly, and the data are in good agreement with the AP8 model. The observations of the MEPD on board the FY-4B satellite can provide important support for the safety of spacecraft and theoretical research related to space weather.

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Section: Mission Requirementssupporting

confidence: 54%

Medium-Energy Proton Detector Onboard the FY-4B Satellite

Zhang,

Shen

et al. 2023

Aerospace

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“…Table 2 lists the main calibration methods and results. The specific methods and processes can be found in the relevant literature [41,42]. And the experimental data come from the accelerator tests used by the Chinese Academy of Sciences and Peking University and the radioactive source 241 Am.…”

Section: Ground Calibration Resultsmentioning

confidence: 99%

Comprehensive Detection of Particle Radiation Effects on the Orbital Platform of the Upper Stage of the Chinese CZ-4C Carrier Rocket

Shen,

Chang,

Zhang

et al. 2024

Atmosphere

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Based on the characteristics of space particle radiation in the Sun-synchronous orbit (SSO), a space particle radiation effect comprehensive measuring instrument (SPRECMI) was installed on the orbital platform of the upper stage of the Chinese CZ-4C carrier rocket, which can acquire the high-energy proton energy spectra, linear energy transfer (LET) spectra of particles, and radiation dose rate. The particle radiation detection data were obtained at 1000 km altitude for the first time, which can be used mainly for scientific research of the space environment, in-orbit fault analysis, and the operational control management of spacecraft, and can also serve as reference data for component validation tests. After SPRECMI’s development, accelerator calibration and simulations were conducted, and the results demonstrated that all the measured indicators, including the high-energy proton spectra (energy range: 21.8–275.0 MeV, precision: <3.3%), total radiation dose (dose range: 0–1.04 × 106 rad, sensitivity: 6.2 µrad/h), and the LET spectra (range: 0.001–37.20 MeV/(mg/cm2), >37.2 MeV/(mg/cm2)), met the relevant requirements. Furthermore, the in-orbit flight test revealed that the detection results of the load components were consistent with the physical characteristics of the particle radiation environment of the spacecraft’s orbit.

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“…The details of the HEPD instrument suite may be found in a previous report [5], and a brief summary is presented as follows.…”

Section: Overview Of Hepd Suitementioning

confidence: 99%

“…By adjusting the energy of the proton beam and using interpolation fitting to obtain the count rate of two adjacent energy ranges of the instrument, the actual energy range boundary can be determined. Using this method, an accurate energy bin boundary of P4/P5 is analyzed [5]. Figure 10 shows the P4/P5 energy bin count ratio of the calibration point of the proton telescope and the interpolation fitting results of the energy range -7 -…”

Section: Accelerator Calibrationmentioning

confidence: 99%

“…Further, when the space environment is disturbed, the particles can generally enter from the polar region, so they can also be observed at high latitudes. The FY-3E satellite is equipped with three sets of high-energy particle detector (HEPD) suite, which are oriented in three directions (as shown in figure 1): skyward (−𝑍), backward (−𝑋), and back side (+𝑌 ) directions, to measure the energy spectra of high-energy electrons (0.15-5.7 MeV) and high energy protons (3-300 MeV) in three orthogonal directions of the satellite orbit [5]. Each HEPD suite includes a high-energy proton detector and a high-energy electron detector, as shown in figure 2.…”

Section: Introductionmentioning

confidence: 99%

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Calibration of the FY-3E particle sensors: High-Energy Particle Detector (HEPD)

et al. 2023

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The FY-3 satellites are China's second generation polar-orbiting meteorological satellites. The high-energy particle detector (HEPD) suite of FY-3 satellites measures protons and electrons in different energy ranges. As the fifth satellite of the FY-3 series, FY-3E continues to observe polar-orbiting high-energy protons and electrons. Here, we use Monte Carlo simulations based on GEANT4 code to model the high-energy electron detector and calibrate the high-energy electron/proton detector campaigns at the Space Electron Facility, National Space Science Center (NSSC-SEF) and 100 MeV high intensity proton cyclotron at the China Institute of Atomic Energy (CYCIAE-100). Due to the energy limitation of the accelerator, the electronic calibration results are also provided. Overall, the findings of this study can serve as a useful reference for characterizing the performance of FY-3E HEPD and verifying the feasibility of on-orbit data.

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Development and Calibration of a Three-Directional High-Energy Particle Detector for FY-3E Satellite

Cited by 5 publications

References 21 publications

Medium-Energy Proton Detector Onboard the FY-4B Satellite

Medium-Energy Proton Detector Onboard the FY-4B Satellite

Comprehensive Detection of Particle Radiation Effects on the Orbital Platform of the Upper Stage of the Chinese CZ-4C Carrier Rocket

Calibration of the FY-3E particle sensors: High-Energy Particle Detector (HEPD)

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