Initial test results of an ionization chamber shower detector for a LHC luminosity monitor
Initial test results of an ionization chamber shower detector for a LHC luminosity monitor
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用于大型强子对撞机光度监测仪的电离室簇射探测器的初步测试结果
DOI：
10.1109/tns.2003.809473
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发表时间：
2002
影响因子：
1.8
通讯作者：
W. Turner
中科院分区：
文献类型：
--
作者：
P. Datte;J. Bêche;M. Haguenauer;P. Manfredi;M. Manghisoni;J. Millaud;M. Placidi;L. Ratti;V. Riot;H. Schmickler;V. Speziali;G. Traversi;W. Turner
为了优化大型强子对撞机（LHC）的亮度，正在研制一种新型的分段式多间隙加压气体电离室。电离室将安装在前四极和0/spl度/中性粒子吸收器的高光度相互作用区（IR）和样本的能量沉积在这些吸收器的强子/电磁簇射的最大值附近。电离室配备有低噪声、快速脉冲整形电子设备，能够在40 MHz下分辨单个聚束交叉。在本文中，我们报告的初步结果，我们的第二次测试的仪器在超质子同步加速器（SPS）的外部质子束。单个300 GeV质子被用来模拟强子/电磁簇射产生的前向碰撞产物从LHC的相互作用区域。仪器的能力，以测量在一个40 MHz的聚束列车的个别聚束的亮度被证明。
A novel segmented multigap pressurized gas ionization chamber is being developed for optimization of the luminosity of the Large Hadron Collider (LHC). The ionization chambers are to be installed in the front quadrupole and 0/spl deg/ neutral particle absorbers in the high luminosity interaction regions (IRs) and sample the energy deposited near the maxima of the hadronic/electromagnetic showers in these absorbers. The ionization chambers are instrumented with low noise, fast pulse-shaping electronics to be capable of resolving individual bunch crossings at 40 MHz. In this paper, we report the initial results of our second test of this instrumentation in a super proton synchrotron (SPS) external proton beam. Single 300 GeV protons are used to simulate the hadronic/electromagnetic showers produced by the forward collision products from the interaction regions of the LHC. The capability of instrumentation to measure the luminosity of individual bunches in a 40 MHz bunch train is demonstrated.