On the linearity of the MINOS light-injection calibration system
On the linearity of the MINOS light-injection calibration system
复制标题
MINOS光注入校准系统的线性度
DOI：
10.1016/j.nima.2003.10.105
复制
发表时间：
2004
影响因子：
1.4
通讯作者：
R. White
中科院分区：
文献类型：
--
作者：
P. Adamson;L. Barrett;A. Belias;A. Blake;A. Cabrera;E. Falk;P. Harris;J. Hartnell;C. Howcroft;M. Kordosky;K. Lang;R. Lee;J. Liu;D. Michael;R. Morse;J. Nelson;R. Nichol;G. Pearce;K. Ruddick;P. N. Smith;P. Symes;Julian Thomas;P. Vahle;R. Webb;A. Weber;R. White
MINOS光注入校准系统已在之前的文章（Nucl.Instr.还有冰毒A 492（2002）353）。在MINOS探测器中调试时，发现该系统对注入光强度的变化给出非线性响应。这种非线性的来源已被追溯到注入光的光谱的一个小的变化，作为施加到原始的蓝色LED的电流的函数，结合快速变化的光谱响应函数的波长偏移光纤中使用的检测器。通过使用具有不同光谱特性的LED，已经成功地解决了问题的两个方面，并且系统现在具有线性响应。
The MINOS light-injection calibration system has been fully documented in a previous article (Nucl. Instr. and Meth. A 492 (2002) 353). Upon commissioning in the MINOS detectors, the system was found to give a non-linear response to variations in the intensity of injected light. The source of this non-linearity has been traced to a small change in the spectrum of the injected light as a function of the current applied to the original blue LEDs, in combination with a rapidly varying spectral response function of the wavelength-shifting fibre used in the detector. Both aspects of the problem have been addressed successfully by use of LEDs with different spectral characteristics, and the system now has a linear response.