THE TIME PROJECTION CHAMBER
THE TIME PROJECTION CHAMBER
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DOI：
10.1063/1.2994775
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发表时间：
1978-10
期刊：
影响因子：
3.5
通讯作者：
J. Marx;D. Nygren
中科院分区：
文献类型：
--
作者：
J. Marx;D. Nygren
实验高能物理学的进展在实践中受到两个互补方面的限制：具有有用强度和能量的束粒子类型，以及可用于测量有关感兴趣的碰撞及其后续反应产物所需信息的检测技术的特性。最令人印象深刻的是，在过去的三十年里，加速器设计的进步使束流能量增加了近三个数量级，而碰撞束流机的出现也使可用的质心能量增加了相当多。有用的粒子束种类的多样性现在已经增长到基本上包括所有已知的寿命大于10 - 11秒的粒子。通过将粒子识别功能与跟踪和动量测量功能结合在同一探测器体积中，该设备实现了整体尺寸的大幅减小。
Progress in experimental high‐energy physics is limited in practice by two complementary aspects: the types of beam particles available with useful intensities and energies, and the characteristics of the detection techniques available for measuring needed information about collisions of interest and their subsequent reaction products. Most impressively, advances in accelerator design over the last three decades have led to an increase in beam energies of nearly three orders of magnitude, and the advent of colliding‐beam machines has brought a comparable increase to the center‐of‐mass energy available. The diversity of useful beam species has now grown to include essentially all known particles with lifetimes greater than 10 −11 seconds . By combining the particle‐identification function in the same detector volume as the tracking and momentum‐measurement functions, this device achieves substantial reduction in overall size.