【摘要】 针对自行研制的8通道Dante谱仪,提出了一种使用B样条曲线进行平滑解谱的算法,并用黑体谱对其进行了验证。计算结果表明:新算法与使用矩形函数解谱的算法相比,对能谱轮廓与总辐射强度的反演精度均有明显提高。给出了"阳"加速器氩气喷气Z箍缩实验的测量波形,由8通道Dante谱仪的测量结果解谱得到的软X光峰值辐射功率和总能量分别为40.5 GW和851 J,与软X光功率计经修正后的测量结果相一致。更多还原

【Abstract】 Soft X-ray Dante spectrometer is one of the primary instruments to diagnose the X-ray radiation emitted by Z-pinch plasma.To obtain the spectra and power of X-rays,unfolding treatment of the measuring data is a must.The structure of a recently developed eight-channel Dante spectrometer is introduced and a smooth unfolding algorithm using parabolic B-splines is presented.Numerical simulation shows that,for blackbody spectra with temperature ranging from 20 to 250 eV,both the spectra and power are accurately recovered.Experimental waveforms measured during Z-pinch experiments performed on the Yang accelerator.The 40.5 GW X-ray peaking power and 851 J X-ray energy unfolded from the measurements of the Dante spectrometer were in agreement with the corrected results of the sofe X-ray power meter.更多还原