Run 11 target usage

From RHIC Spin Group

Last modified by Dmitri Smirnov on 10-07-2012


Preliminary.png For latest results and plots go to http://www.phy.bnl.gov/cnipol/summary/


For target thickness and other parameters go to Polarimetry/pC#Targets

A report on a target stress testing study is also available: doc


Approximate number of sweep measurements performed with each target
1 2 3 4 5 6 All
H V H V H V H V H V H V H V
Blue-1 Upstream 81 297 1 1 333 6 74 0 61 0 224 0 777 304
Yellow-1 Downstream 249 16 4 4 56 15 98 7 113 1 65 1 585 44
Blue-2 Downstream 175 49 3 4 41 118 1 75 6 19 1 219 227 484
Yellow-2 Upstream 74 355 6 8 52 178 1 5 41 8 17 116 191 670
Target usage history at 250 GeV
C hTargetVsMeas B1U 250.png C hTargetVsMeas Y2U 250.png
Blue-1 Upstream Yellow-2 Upstream
C hTargetVsMeas B2D 250.png C hTargetVsMeas Y1D 250.png
Blue-2 Downstream Yellow-1 Downstream

Only 250 GeV measurements are shown. Measurements with vertical targets are shown with down-pointing triangles ; whereas mesurements with horizontal targets are shown with up-pointing triangles .


Target usage history at 24 GeV
C hTargetVsMeas B1U 024.png C hTargetVsMeas Y2U 024.png
Blue-1 Upstream Yellow-2 Upstream
C hTargetVsMeas B2D 024.png C hTargetVsMeas Y1D 024.png
Blue-2 Downstream Yellow-1 Downstream

Only 24 GeV measurements are shown. Measurements with vertical targets are shown with down-pointing triangles ; whereas mesurements with horizontal targets are shown with up-pointing triangles .


Target usage history at 100 GeV
C hTargetVsMeas B1U 100.png C hTargetVsMeas Y2U 100.png
Blue-1 Upstream Yellow-2 Upstream
C hTargetVsMeas B2D 100.png C hTargetVsMeas Y1D 100.png
Blue-2 Downstream Yellow-1 Downstream

Only 100 GeV measurements are shown. Measurements with vertical targets are shown with down-pointing triangles ; whereas mesurements with horizontal targets are shown with up-pointing triangles .


Summary from online

The following information is provided by Haixin.

Blue1
H1         15081-15251 02/05 12:15PM - 02/28 12:43PM
H3 2/26 15111-15240 3/7 5:33PM-2/26 7:13AM
H5 3/29 15343-15368  3/25 9:14pm- 3/29 6:03PM
H2 3/29 15368-15368 3/29 9:10PM
H4 4/4   15368-15393  3/29 11:07PM-4/4 12:38PM
H6         15394-15475  4/4 12:44PM-4/19 10:01AM
V1         14807-15342 1/13 12:20AM-3/25 6:00PM
V3         14890-14891 only used for emit. measurements.
V5
V2
V4
V6   
Blue2
V1 2/21    14807-15208  1/13 12:42AM- 2/21 5:53PM
V3 3/29    15210-15366  2/21 10:51PM-3/29 2:37AM  lost in ramp measurement
V5 3/31    15366-15370  3/29 2:47AM-3/30 4:57AM
V2 3/30    15371 lost w/o use
V4 4/5      15373-15399  3/31 6:45AM-4/5 1:39PM
V6            15399-15475  4/5 4:51PM- 4/19 9:37AM
H1 3/23    14803-15325  1/10 10:48AM- 3/23 5:46AM
H3            15331-15342  3/23 01:11AM-3/25 6:03PM
H5            used on 3/29, too loose
H2
H4
H6
Yellow1
H1 2/27    14890-15246  1/22 1:17PM- 2/27 9:06AM
H3 3/3      15249-15267  2/27 4:56PM-3/3 10:30PM
H5 3/25    15267-15338  3/3 10:36PM-3/25 2:28AM
H2 3/25    lost w/o use 15338 3/25
H4 3/27    15359-15410  3/27 11:27AM- 4/7 12:41PM
H6            15378-15475  4/1 12:40AM- 4/18 10:27PM
V1 3/26    15221-15350   2/23 6:59PM-3/26 6:48PM
V3 3/26    15221 lost w/o use
V5 3/26    15353 lost w/o use   
V2 3/26    15353 lost w/o use
V4 3/26    15356 lost w/o use only; used 2/13 for three measurements
V6            15166 2/13 6:54PM used once
Yellow2
V1  3/2     15015-15257 1/30 10:40AM-3/2 4:37PM
V3  3/30   15261-15369 3/3 4:06AM- 3/30 3:24AM
V5  3/30   15369-15370 3/30 3:41AM-3/30 8:05AM
V2  3/31   lost w/o use
V4  3/31   lost w/o use
V6  4/8     15375-15419 3/31 10:02AM- 4/8 1:44AM
H1  4/12   15342-15357 (3/25-3/27) 15424-15443 4/8 7:10PM-4/12 3:54PM
H3  4/16   15443-15466  4/12 4:05PM- 4/16 5:12AM
H5            15466-15473  4/13 7:58AM- 4/18 11:03AM
H2
H4
H6            15221 used in APEX 2/23 6:33PM-9:31PM


Loose Targets

This information is provided by Billy Christie:

B1V2 (10-187) Prerun comments: No comment Postrun comments: Very Loose
B1V3 (10-141) Prerun comments: Little Loose   Postrun comments: Very Loose
B2H3 (10-200) Prerun comments: No comment Postrun comments: Very Loose
B1V1 (10-168) Prerun comments: Little Loose   Postrun comments: N/a (the target did not survive the run)

There are only few measurements with B1V2 and B1V3. No good sweep measurements available with these two targets.

B2H3 indeed may have been giving a non-gaussian intensity profile for sweep measurements [1] [2] [3]

B1V1 was giving nice gaussian intensity profiles most of the times. [4] [5]


Last modified by Dmitri Smirnov on 10-07-2012