A Calibration Method for Space Ion Detector Using Geomagnetic Stiffness
An ion detector and space technology, which is applied in the field of satellite in-orbit space radiation environment monitoring, can solve the problem of inaccessibility of ions, and achieve the effect of avoiding installation and management.
Inactive Publication Date: 2018-12-04
NAT SPACE SCI CENT CAS
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to overcome the above-mentioned problems existing in the on-orbit calibration of satellite space ion detection instruments, and to provide a method for using geomagnetic stiffness to perform space ion detector calibration. The method utilizes cosmic ray ions to Due to the deflection by the earth's magnetic field, low-energy ions cannot enter. This ability of the earth's magnetic field is called the earth's cut-off stiffness. When the earth's space environment is stable, the configuration of the earth's magnetic field will also remain stable. The cut-off stiffness of the earth will also remain stable. At this time, the energy of space cosmic ray ions that can reach a specific position above the earth remains stable, and its energy can be quantified. Using the above-mentioned characteristics of the recent low energy of cosmic rays, it can be used to detect space ion detectors Calibrate
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] The method of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] Such as figure 1 Shown, a kind of method utilizing geomagnetic stiffness to carry out space ion detector calibration, described method comprises the following steps:
[0033] Step 1) Obtain the energy deposition result ΔE measured on each sensor after the space ion detector flying in orbit is subjected to space ion incident i ;
[0034] The energy deposition measurement result of the i-th sensor is denoted as ΔE i , the unit is MeV; the sensor type of the space ion detector is semiconductor or scintillator.
[0035] Step 2) Calculate the energy deposition of space ions in each sensor; specifically include:
[0036] Step 201) Calculate the geomagnetic latitude of its location according to the geographic longitude, geographic latitude and elevation data of the aircraft in orbit:
[0037] φ=π / 2-arccos(sinθ×sinθ 0 +cosθ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides a calibration method of a spatial ion detector based on the geomagnetic rigidity. The method comprises the steps of 1) acquiring the energy deposition result of an spatial ion detector of an in-orbit aircraft on each sensor after being subjected to spatial ion incidence; 2) calculating the geomagnetic cutoff rigidity at the current location of the in-orbit aircraft according to the geomagnetic latitude of the in-orbit aircraft, simultaneously calculating the charge numbers of selected spatial ions so as to calculate the detected minimum ion energy of the spatial ion detector, and calculating the energy deposition of spatial ions within each sensor based on the minimum ion energy through the Monte Carlo method; 3) calculating the measurement error of the spatial ion detector according to the energy deposition result of the spatial ion detector on each sensor obtained in the step (1) and the energy deposition of spatial ions within each sensor obtained in the step (2); (4) calibrating the spatial ion detector based on the measurement error.
Description
technical field [0001] The invention relates to the technical field of satellite on-orbit space radiation environment monitoring, in particular to a method for calibrating a space ion detector by using geomagnetic stiffness. Background technique [0002] Space ions are the most important component of the space radiation environment and one of the direct factors that threaten satellite safety and space activities. Space charged particles are the main research object in space environment research. The detection of charged particles has a history of several decades. At present, the understanding of space charged particles has a certain foundation. Leaping over a new level, new requirements are constantly put forward for the accuracy and resolution of space ion detectors. In order to ensure that the accuracy, resolution and other indicators of the space ion detector meet the requirements, not only ground calibration is required before launch, but also test calibration is requi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01T1/00
Inventor 杨垂柏荆涛张斌全张珅毅曹光伟孔令高梁金宝
Owner NAT SPACE SCI CENT CAS