کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1824432 1027337 2012 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Correcting systematic errors in high-sensitivity deuteron polarization measurements
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم ابزار دقیق
پیش نمایش صفحه اول مقاله
Correcting systematic errors in high-sensitivity deuteron polarization measurements
چکیده انگلیسی

This paper reports deuteron vector and tensor beam polarization measurements taken to investigate the systematic variations due to geometric beam misalignments and high data rates. The experiments used the In-Beam Polarimeter at the KVI-Groningen and the EDDA detector at the Cooler Synchrotron COSY at Jülich. By measuring with very high statistical precision, the contributions that are second-order in the systematic errors become apparent. By calibrating the sensitivity of the polarimeter to such errors, it becomes possible to obtain information from the raw count rate values on the size of the errors and to use this information to correct the polarization measurements. During the experiment, it was possible to demonstrate that corrections were satisfactory at the level of 10−5 for deliberately large errors. This may facilitate the real time observation of vector polarization changes smaller than 10−6 in a search for an electric dipole moment using a storage ring.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 664, Issue 1, 1 February 2012, Pages 49–64
نویسندگان
, , , , , , , , , , , , , , , , , , ,