Digital Signal Reconstruction in the ATLAS Hadronic Tile Calorimeter
Digital Signal Reconstruction in the ATLAS Hadronic Tile Calorimeter
复制标题
ATLAS 强子瓦热量计中的数字信号重建
DOI：
--
复制
发表时间：
2005
影响因子：
1.8
通讯作者：
J. Valls
中科院分区：
文献类型：
--
作者：
E. Fullana;J. Castelo;V. Castillo;C. Cuenca;A. Ferrer;E. Higón;C. Iglesias;A. Munar;J. Poveda;A. Ruiz;B. Salvachua;C. Solans;R. Teuscher;J. Valls
我们提出了一种最优滤波（OF）算法，从光电倍增管信号的数字样本中重建其能量、时间和基座。OF算法最初是为液体电离量热计开发的，其在闪烁体量热计，特别是ATLAS强子瓦式量热计（TileCal）中的实现是本研究的目的。目的是在读出驱动卡的dsp上实现算法，以便在线重建量热计的能量并将其提供给二级触发器。利用TileCal探测器的标定数据和实际数据对该算法进行了测试，并与普通滤波算法进行了比较。特别是在电子噪声对分辨率有显著影响的区域，结果很有希望
We present an Optimal Filtering (OF) algorithm to reconstruct the energy, time and pedestal of a photomultiplier signal from its digital samples. The OF algorithm was first developed for liquid ionization calorimeters, its implementation in scintillator calorimeters, specifically in the ATLAS hadronic Tile calorimeter (TileCal), is the aim of this study. The objective is to implement the algorithm on the DSPs of the Read Out Driver cards in order to reconstruct online the energy of the calorimeter and provide it to the second level trigger. The algorithm is tested and compared with a plain filtering algorithm using both calibration and real data from the TileCal detector. The results are promising specially in the regions where the electronic noise contributes significantly to the resolution