Internet Archive Scholar

New DAQ for the HJET polarimeter at RHIC

Andrei Poblaguev
2016 Proceedings of XVIth International Workshop in Polarized Sources, Targets, and Polarimetry — PoS(PSTP2015)   unpublished

Preserved Fulltext

fulltext thumbnail
Web Archive Capture PDF (1.0 MB)
https://web.archive.org/web/20170210011957/https://www.bnl.gov/isd/documents/92543.pdf

A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL. The file type is application/pdf.

In RHIC Run 15 the new DAQ for the polarized hydrogen jet target polarimeter (HJET) was tested and employed. The DAQ based on Jefferson Lab 12 bit 250 MHz FADC and new set of silicon detectors allowed us to improve the quality of data analysis. Comparison of different methods of energy calibration of the detectors will be reported. The analysis of the signal shape was found to be very helpful for separation of stopped and punched through protons. Such a separation results in extension of the
more » ... rgy range of detected protons as well as in suppression of inelastic background. Systematic errors of the beam polarization measurements are discussed. Preliminary results for the 100 GeV polarized protons analyzing power on Au and Al are presented.
doi:10.22323/1.243.0032 fatcat:nmjapnqhsbalnpqeydkkofaysu
Citation

Andrei Poblaguev. "New DAQ for the HJET polarimeter at RHIC." Proceedings of XVIth International Workshop in Polarized Sources, Targets, and Polarimetry — PoS(PSTP2015) (2016)