Difference between revisions of "Run summary for commissioning in spring 2016"

Revision as of 12:03, 21 April 2016

LHRS CODA run	RHRS CODA run	BCM logger	Comments
12382	21731	/a/opsuser/hacuser/BCMLOG/bcm_log_02-07-2016-23-24-07.log
12514	21807	/a/opsuser/hacuser/BCMLOG/bcm_log_02-16-2016-20-07-42.log	The details can be found in halog entry 3380376 and comment therein
12916	22097	/a/opsuser/hacuser/BCMLOG/bcm_log_03-04-2016-09-40-14.log	Max 30uA (see strip chart); comments and halog entry about beam loss
13220	22298	/a/opsuser/hacuser/BCMLOG/bcm_log_04-10-2016-12-52-33.log	See BCM calibration

Elastic production runs

2nd Pass (E_beam = 4.5 GeV)

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
21799	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Only one set of raster coils is in use; ps1,2,3=1, ps8=100
21809 - 21820	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Only one set of raster coils is in use; ps1,2,3=1, ps8=100; Signals for 16 straws missing in all three V planes
21824 - 21831	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Same as above
21832	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Beam tripped in the middle of this run, production only lasted for an hour (run time is about 3 hours); same as above
21844 - 21857	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21869 - 21871	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Same as above
21872	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Beam turned off 30 mins after run started; same as above
21875	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Asked MCC to restore beam position 25 mins after run started; Straw chamber issues in V2 plane still exist
21876 - 21887	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21889 - 21893	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21894	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Beam position moving second half of run; straw chamber issues in V2 plane still exist
21895	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Last 16 minutes no beam; straw chamber issues in V2 plane still exist
21896	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21897	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Last 25 minutes no beam; straw chamber issues in V2 plane still exist
21898	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21900 - 21901	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21903 - 21915	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist
21918 - 21925	15cm LH2	2 x 2 mm²	4.481	1.547	52.91	5.5	Straw chamber issues in V2 plane still exist

4th Pass (E_beam = 8.8 GeV)

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
22027 - 22034, 22036 - 22044, 22047 - 22055, 22058 - 22062	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22067	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	Very short run; ps1,2,3=1, ps8=200
22076 - 22077	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22079	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	Very short run; ps1,2,3=1, ps8=200
22080	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	Very short run; 10uA; ps1,2,3=1, ps8=200
22081 - 22083	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	Beam very trippy; 10uA; ps1,2,3=1, ps8=200
22085 - 22087	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	10uA; ps1,2,3=1, ps8=200
22088	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	Very short run; 10uA; ps1,2,3=1, ps8=200
22093 - 22095	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22098 - 22102	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22103 - 22108	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22114	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	No beam during last 25 mins; ps1,2,3=1, ps8=200
22115 - 22128	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22130 - 22154	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200; beam off for much of run 22146
22155 - 22157	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200; 5 uA
22158 - 22160	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22161	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200; very short run
22162-22167	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200; these are all short runs (about 30-40 mins)
22168-22172	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200
22174-22181	15cm LH2	2 x 2 mm²	8.841	2.101	48.75	12.65	ps1,2,3=1, ps8=200

Still 4 pass here, but spectrometer moved for DVCS calibration and then moved back before the following runs.
No survey was done at this position, but a point run 22297 was taken on multi-foil carbon target at this position.
Raster size in MCC unit also changed (check image of carbon hole target and raster current in start- and end-of-run for details)

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
22263 - 22264, 22266 - 22293	15cm LH2	2 x 2 mm²	8.841	2.101	48.89	12.65	ps1,2,3=1, ps8=200
22300 - 22301, 22303 - 22314	15cm LH2	2 x 2 mm²	8.841	2.101	48.89	12.65	ps1,2,3=1, ps8=200

5th Pass (E_beam = 11.0 GeV)

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
22196-22197,22202-22207, 22209-22212	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200
22225-22229, 22235-22236, 22238, 22240-22241	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200

Spectrometer moved for DVCS calibration after 4-pass run 22314. No survey was done at this position, but a point run 22328 was taken on multi-foil carbon target at this position.

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
22326, 22329 - 22330, 22333 - 22342, 22346 - 22349, 22352 - 22361	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200
22366 - 22370, 22379 - 22406	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200; Raster failed and repaired between run 22361 and 22366, look at this link and here to see what happened
22407 - 22409	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200; trippy beam
22410 - 22413, 22415	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200
22419 - 22426, 22428 - 22429	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200; raster failed and fixed before run 22419; raster size was set to 2(H)x2(W) in MCC units (it was 2(H)X3(W) in MCC units before the raster failure); run 22427 was during Compton setup
22430, 22432 - 22438, 22440 - 22452, 22456 - 22459	15cm LH2	2 x 2 mm²	11.021	2.204	48.75	16.54	ps1,2,3=1, ps8=200; raster size set back to 2(H)x3(W) in MCC units before run 22430

Gmp dedicated run period

LHRS

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Q² [GeV²]	Comment
13443	15cm LH2	2.5x3	8.841	2.503	43.0	11.89	ps1=ps2=ps3=1, ps8=20000; Beam energy measurements started before the end of the run with tune beam. Needs to cut this period

RHRS (Spectrometer position is the same as in run 22459)

Run number

Target

Raster

E_beam [GeV]

P₀ [GeV/c]

θ_e [deg]

Q² [GeV²]

Comment

Runs on dummy target

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
21916	15cm dummy	2 x 2 mm²	4.481	1.547	52.91	Only one set of raster coils is in use; ps1,2,3=1, ps8=100;short dummy run at 10 uA; hydrogen elastic
21917	15cm dummy	2 x 2 mm²	4.481	1.547	52.91	Only one set of raster coils is in use; ps1,2,3=1, ps8=100;dummy run at 15 uA, 20 minutes no beam middle of run; hydrogen elastic
21936	15cm dummy	2 x 2 mm²	4.481	0.85	52.91	Only one set of raster coils is in use; ps1,2,3=1, ps8=100; inelastic kinematics
21937	15cm dummy	2 x 2 mm²	4.481	0.85	52.91	Only one set of raster coils is in use; ps1,2,3=1, ps8=100; inelastic kinematics
22302	15cm dummy	2 x 2 mm²	8.841	2.101	48.89	Proton elastic kinematics, raster size 2x2 mm2 in MCC unit (it was 4x2 mm² in MCC unit which we take as 2x2 mm² in Hall A unit)

Spectrometer pointing runs

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
21928 - 21929	Multi-foil carbon	Off	4.48	0.85	52.91	ps1,2,3=1, ps8=100
12650 - 12651	Multi-foil carbon	Off	4.48	1.485	37.14	DVCS config, ps9=1
22110	Multi-foil carbon	Off	8.841	0.85	48.75	ps1,2,3=1, ps8=100
22173	Multi-foil carbon	Off	8.841	2.101	48.75	ps1,2,3=1, ps8=200
22297	Multi-foil carbon	Off	8.841	0.85	48.89	ps1,2,3=1, ps8=200
22328	Multi-foil carbon	Off	11.021	0.85	48.75	ps1,2,3=1, ps8=200
22454	Multi-foil carbon	Off	11.021	2.204	48.75	ps1,2,3=1, ps8=200; same spectrometer position as in run 22328

Inelastic runs on LH2

Run number	Target	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
21938 - 21939	15cm LH2	2 x 2 mm²	4.48	0.85	52.91	ps1,2,3=1, ps8=100

Optics commissioning runs

A full description of the run plan can be found here.
Survey results of spectrometer positions can be found here.
Step R1: Procedure with Sieve-slit

Run number	Target	Sieve	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
21950 - 21967, 21969 - 21972	Multi-foil carbon	Yes	Off	2.30	0.75	48.75	ps1,2,3=1; Beam position not stable for runs 21950,21951; Straw chamber missing signals restored before run 21950
21973 - 21974	Single-foil carbon	Yes	Off	2.30	0.75	48.75	ps1,2,3=1
21988, 21990 - 21991	Single-foil carbon	Yes	Off	2.30	0.75	48.75	ps1,2=1,ps3=0; Noise in Cherenkov spectrum and VDC, straw chamber hit patterns is seen when triggering on s2m&&GC
21992-21995	15cm LH2	Yes	2x2 mm²	2.30	0.75	48.75	ps1,2=1, ps3=0; Noise in Cherenkov spectrum and VDC, straw chamber hit patterns is seen when triggering on s2m&&GC

Step R2: Delta Scan with Proton Elastic (without sieve slit)

Run number	Target	Sieve	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
22006	15cm LH2	No	2 x 2 mm²	2.30	1.304	48.75	Delta scan ΔP=-4%; ps1,2=1
22007	15cm LH2	No	2 x 2 mm²	2.30	1.279	48.75	Delta scan ΔP=-2%; ps1,2=1
22008	15cm LH2	No	2 x 2 mm²	2.30	1.254	48.75	Delta scan ΔP=0%; ps1,2=1
22011	15cm LH2	No	2 x 2 mm²	2.30	1.229	48.75	Delta scan ΔP=+2%; statistics a bit low; ps1,2=1
22013	15cm LH2	No	2 x 2 mm²	2.30	1.203	48.75	Delta scan ΔP=+4%; ps1,2=1; dipole not stable in run 22012

Step R3: Dummy Target Runs

Run number	Target	Sieve	Raster	E_beam [GeV]	P₀ [GeV/c]	θ_e [deg]	Comment
22009 - 22010	15cm dummy	No	2 x 2 mm²	2.30	1.254	48.75	ps1,2=1

Target boiling study

The run plan and spectrometer settings for target current scan can be found here.
Carbon Target Current Scan

Run number	Beam current [μA]	Raster	Comment
13430, 22464	60	2.5x3	LHRS: ps1=10; RHRS: ps1=6
13431, 22465	45	2.5x3	LHRS: ps1=4; RHRS: ps1=2
13433, 22466	25	2.5x3	LHRS: ps1=2; RHRS: ps1=1
13434, 22467	10	2.5x3	LHRS: ps1=1; RHRS: ps1=1

15-cm Aluminum dummy

Run number	Beam current [μA]	Raster	Comment
13435, 22468	40	2.5x3	LHRS: ps1=4; RHRS: ps1=2

LH2 current scan

Run number	Beam current [μA]	Raster	Comment
13436, 22469	10	2.5x3	LHRS: ps=5; RHRS: ps1=3
13437, 22470	20	2.5x3	LHRS: ps=6; RHRS: ps1=3
13438, 22471	30	2.5x3	LHRS: ps=6; RHRS: ps1=4
13439, 22472	40	2.5x3	LHRS: ps=7; RHRS: ps1=4
13440, 22473	50	2.5x3	LHRS: ps=8; RHRS: ps1=5
13441, 22474	60	2.5x3	LHRS: ps=9; RHRS: ps1=6

Beam energy measurement

This is a collection of halog entries on the beam energy measurement. It might not be complete, and some of them might not be useful. I just keep them here for future reference.

1st Pass Bdl Measurement (beam not yet to the hall)
Bdl for flat orbit through ARC
QuickPic - harps C18A/C18B for energy measurement
NMR after restoration
Wien Angle For Hall A @ 8.8 GeV
Hall A 8.843 GeV ARC Central Ray (Bdl & NMR)
9th Dipole Bdl / NMR / Current (central ray energy 8841 MeV)
Current Beam Energy In Hall A ~ 8845 MeV (by different techniques)
Dispersive Orbit (8842 MeV)
Minor Bdl Change
Larger Wien Angle Consistent with ARC Energy Measurement Results
4th Pass Bdl & Current Check Before I vs. Bdl Scan
Hall A 9th Dipole Map (downward)
9th Dipole Mapping Issues | NMR & Position Working
9th Dipole Mapping Issues | Follow-up
Follow-up Re: Hall A 9th Dipole Map (downward)
9th Diple Bdl Scan (upward)
~11 GeV Bdl Measurement
9th Dipole Scan (upward, 100 A steps)
9th Dipole 532.7A Bdl
Finished 9th Dipole Scans
Spin precession for Hall A @ 5-pass
ARC1 & 2 Measured Beam Energy After Long Down
11GeV 5th Pass Hall A ARC Energy (Bdl only)
Monitoring ARC NMR from "cold start" of the magnet
11 GeV Dispersive Orbit !!
Shift in Bdl
2nd Pass NMR & Bdl (~4486 MeV ideal orbit)
Hall A ARC Bdl Mapper Checked
Dispersive Optics Bdl (8.8 GeV)
Hall A Energy 8842 MeV

Some cosmic runs

Run number	Comment
22024 - 22025, 22065	ps1,2,3=1, ps8=200
22066	Beam back to the hall in the last four hours of the run; ps1,2,3=1, ps8=200
22073	ps1,2,3=1, ps8=200
22074	Beam back to the hall in the last one and a half hours of the run; ps1,2,3=1, ps8=200

@@ Line 1,089: / Line 1,089: @@
   [https://logbooks.jlab.org/entry/3394171 Shift in Bdl]
   [https://logbooks.jlab.org/entry/3397750 2nd Pass NMR & Bdl (~4486 MeV ideal orbit)]
+ [https://logbooks.jlab.org/entry/3401489 Hall A ARC Bdl Mapper Checked]
+ [https://logbooks.jlab.org/entry/3401513 Dispersive Optics Bdl (8.8 GeV)]
+ [https://logbooks.jlab.org/entry/3401533 Hall A Energy 8842 MeV]
 ==== Some cosmic runs ====

Relative position	LHRS CODA run	RHRS CODA run	Harp scan entry no.
(0,0)	12454	21781	3379157
(2,2)	12455	21782	3379165
(2,-2)	12456	21783	3379172
(-2,-2)	12457	21784	3379184
(-2,2)	12458	21785	3379191
(0,0)	12459	21786	3379201

Difference between revisions of "Run summary for commissioning in spring 2016"

Revision as of 12:03, 21 April 2016

Contents

BPM calibration runs (Bull's eye scan)

BCM calibration runs

Elastic production runs

Runs on dummy target

Spectrometer pointing runs

Inelastic runs on LH2

Optics commissioning runs

Target boiling study

Beam energy measurement

Some cosmic runs

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