RUN8 H-Jet polarimeter 1. ONLINE Data check. Two correlations (T R -TOF, R -T R ), Background level, acceptance, A N & BEAM. 2. ONLINE results of single beam mode. Absolute beam-pol. for every couple of s tores! All stuffs are on the web. 3. Two beams mode commissioning. 4. Next things for the OFFLINE analysis. Hiromi Okada April 4 th
RUN8 H-Jet polarimeter. Hiromi Okada April 4 th. ONLINE Data check. Two correlations (T R -TOF, R -T R ), Background level, acceptance, A N & BEAM. ONLINE results of single beam mode. Absolute beam-pol. for every couple of stores! All stuffs are on the web. - PowerPoint PPT Presentation
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RUN8 H-Jet polarimeter1. ONLINE Data check.
Two correlations (TR-TOF, R-TR),
Background level, acceptance, AN & BEAM.
2. ONLINE results of single beam mode. Absolute beam-pol. for every couple of stores! All stuffs are on the web.
3. Two beams mode commissioning.
4. Next things for the OFFLINE analysis.
Hiromi Okada April 4th
x
y
jet
(-10, -10) mm
Single beam mode Set up
Ch#1
Ch#16
33
22
11 66
55
44
(0, -4) mmCollision point – detector: 80cm
Cover kinetic energy: 0.5 < TR < 5 MeV
Energy calibration: 5.486 MeV (Am),
3,183 MeV (Gd)
Same as RUN5 and RUN6
TOF
TR
Ch#1 Ch#4
Ch#5 Ch#8
Ch#9
Ch#16
Energy and TOF correlations from one of the detector
0.5 < TR < 5 MeV80 > TOF > 20 ns
TOF
TR
0.5 < TR < 5 MeV80 > TOF > 20 ns
Energy and TOF correlations of 6 detectors (BLUE side)
20 nsec
Si#3
Si#1
Si#6
Si#1
Si#5Si#2
TOF
TR
Color shows events from 8 different channels.
Recoil particle identification
TR and ch# correlation
Ch# R
YBSi#3
Si#1
Si#4
Si#6
Si#5Si#2
Ch#
TR
Forward scattered particle identification
Background level single beam mode1.2 <TR <2.5 MeV, 2 hours data
BLUE modeBLUE modeBPM at IR12 reading:
Blue (x,y)= (0, 4)mm
Yellow (x,y) = (10, +10)mm, Fill#9905
YELLOW modeBPM at IR12 reading:
Blue (x,y)= (+5, +8)mm
Yellow (x,y) = (0, 4)mm, Fill#9920
200
ONLINE results of single beam mode
Absolute beam-pol. for every couple of stores!
Sasha will show…All stuffs are available on the web. http://www.phenix.bnl.gov/WWW/publish/shura/RSC/2008/
I am going to talk about brief update of two beams modetwo beams mode commissioning.