CAJ | 학술논문

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.
침대자행연제적8통도Dante보의,제출료일충사용B양조곡선진행평활해보적산법,병용흑체보대기진행료험증.계산결과표명:신산법여사용구형함수해보적산법상비,대능보륜곽여총복사강도적반연정도균유명현제고.급출료"양"가속기아기분기Z고축실험적측량파형,유8통도Dante보의적측량결과해보득도적연X광봉치복사공솔화총능량분별위40.5 GW화851 J,여연X광공솔계경수정후적측량결과상일치.
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.