Abstract
Based on the needs of detection and calibration with low-energy X-ray, we used the relationship characteristics of X-ray fluorescence, absorption and limit potential target excitation, developed the X-ray device with adjustable intensity (single photon to 107/s), optional energy points (4 keV - 20 keV), highly portable (≤1 kg), by the matching design of fluorescence energy conversion target and modulation means, coupled transport simulation of electron-photon in target, meanwhile, we solved the low-energy X-ray radiation field diagnose problems with HPGe detector, which calibrated with combined technique, including relatively wide energy efficiency simulation and single energy point of absolute efficiency calibration. In single-photon calibration field of soft X-ray pulsar navigation detect, the portable reference single energy radiation fields was applied effectively and got good result, the reference radiation fields provided perfect experiment means for the scientific study of pulsar navigation detecting, sun X-ray monitoring, etc.
Highlights
It is the urgent need to acquire a portable low energy single-photon radiation with accurate parameter, including energy and fluence, to support the quantum efficiency calibration for detector and weak signal discriminated study in these fields, such as pulsar navigation detection, faint target characteristics distinguish, blackbody radiation diagnostics and so on [1]-[6]
In our work explore the technique of material absorp
According to the calibration task of single photon detector developed for the pulsar navigation radiation profile measurement [14], we build single photon measurement system with CR105PMT photomultiplier tube and TELEDYNE LECROY wave runner 610 Zi oscilloscope
Summary
It is the urgent need to acquire a portable low energy single-photon radiation with accurate parameter, including energy and fluence, to support the quantum efficiency calibration for detector and weak signal discriminated study in these fields, such as pulsar navigation detection, faint target characteristics distinguish, blackbody radiation diagnostics and so on [1]-[6]. There are three ways to obtain radiation field, First, by X-ray fluorescence, narrow spectrum, broad spectrum of X-ray machine in the calibration laboratory, in order to service instrumentation dose or dose rate calibration of radiation protection field, its energy monochromaticity is poor [7] [8]. (2015) Development and Application of Portable Reference Radiation Fields with Multi-Point Single-Energy Photon.
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