A p-carbon CNI polarimeter for RHIC

Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366) Pub Date : 1999-12-01 DOI:10.1109/PAC.1999.795735

H. Huang, M. Bai, G. Bunce, Y. Makdisi, T. Roser, K. Imai, M. Nakamura, J. Tojo, K. Yamamoto, L. Zhu, B. Bassalleck, S. Eilerts, D. Fields, B. Lewis, B. Smith, T. Thomas, D. Wolfe, Y. Goto, N. Hayoshi, M. Ishihara, K. Kurita, M. Okamura, N. Saito, A. Taketani, D. Underwood, J. Doskow, K. Kwiatkowski, B. Lozowski, H. Meyer, B. Przewoski, T. Rinckel, S. Nurushev, M. Strikhanov, M. F. Runtzo, I. Alekseev, D. Svirida, A. Deshpande, V. Hughes

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引用次数: 3

Abstract

The RHIC spin program requires excellent polarimetry so that the knowledge of the beam polarization does not limit the errors on the experimental measurements. However, polarimetry of proton beams with energies higher than about 30 GeV poses a difficult challenge. For polarization monitoring during operation, a fast and reliable polarimeter is required that produces a polarization measurement with a 10% relative error within a few minutes. The p-carbon elastic scattering in the Coulomb-nuclear-scattering (CNI) region has a calculable and large analyzing power, but detecting the recoil carbon needs a sophisticated detector system and a very thin target. An experiment has been planned in the AGS. This paper describes the experimental setup in the AGS.

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一种用于RHIC的p-碳CNI偏振计

RHIC自旋程序需要出色的偏振测量，以便光束偏振的知识不会限制实验测量的误差。然而，能量高于30 GeV的质子束的极化测量是一个困难的挑战。为了在工作过程中进行偏振监测，需要一台快速可靠的偏振仪，在几分钟内产生相对误差为10%的偏振测量。p-碳在库仑核散射(CNI)区域的弹性散射具有可计算和较大的分析能力，但探测反冲碳需要复杂的探测器系统和非常薄的靶。AGS计划进行一项实验。本文介绍了AGS的实验装置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings of the 1999 Particle Accelerator Conference (Cat. No.99CH36366)

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