Spectra for 208Pb(alpha, alpha') taken with the Q3D magnetic spectrograph at MLL Garching (Germany) in 1992

Spectra for 208Pb 208Pb(alpha, alpha') taken with E= 40.4 MeV with the Q3D magnetic spectrograph. The detector had five layers read out separately, an1 and an2 for anode-1 anode-2, cat1 and cat2 for cathode-1 cathode-2, foc for focal plane. The distance between the wires was about 10 cm - in between the focal plane. Strong peaks from contaminations of 12C and 16O were erased by inserting a metal foil before the detector. Original raw data roh_1992.tgz with listing in roh_1992.listing.pdf Data files in DAT_1992.tgz with listing in DAT_1992.listing.pdf In 2015 an essay was done to analyze some spectra by GASPAN. They are roughly calibrated by Nuclear Data Sheets 2007 Files needed for evaluation with GASPAN in GSPwork_2015.tgz Spectra fitted by GASPAN in EPS_aa2015.tgz with list in EPS_aa2015.listing.pdf Short protocol of data in protocol.aa1992本数据集包含采用40.4 MeV入射α粒子、借助Q3D磁谱仪采集的208Pb(α,α')反应能谱数据。 该探测器包含五层独立读出通道：an1与an2分别对应阳极1（anode-1）与阳极2（anode-2），cat1与cat2分别对应阴极1（cathode-1）与阴极2（cathode-2），foc对应焦平面（focal plane）。 焦平面内的探测丝间距约为10厘米。 研究人员通过在探测器前加装金属箔，成功剔除了12C与16O杂质本底产生的强信号峰。 原始未处理实验数据打包为roh_1992.tgz，配套数据清单文件为roh_1992.listing.pdf。 处理后的数据文件打包为DAT_1992.tgz，配套数据清单文件为DAT_1992.listing.pdf。 2015年，研究人员使用GASPAN软件对部分能谱开展分析工作；该批能谱的刻度参考了《Nuclear Data Sheets 2007》（2007年核数据表）。 用于GASPAN软件分析评估的配套文件打包为GSPwork_2015.tgz。 经GASPAN软件拟合的能谱数据打包为EPS_aa2015.tgz，配套列表文件为EPS_aa2015.listing.pdf。 实验数据简要记录文档为protocol.aa1992。