E07-002 Run Plan

Bogdan Wojtsekhowski and David Hamilton

25 January 2008

1. Off Endpoint Kinematics

E_beam = 4.591 GeV
E_γⁱⁿ = 4.1 GeV
E_γ^scatter = 2.8 GeV
θ_γ = 26.5^o
D_BigCal = 12.0 m
p_p^HMS = 2.02 GeV/c
θ_p^HMS = 38.3^o

2. Installation Plan (01/25 Day)

Turn beam off at 7 AM and call RadCon for full sweep.
Call MCC and ask for restricted access, if possible.
Call Walter Kelner and Steve Lassiter when survey is complete.
Move BigBite magnet into place (W. Kelner).
Connect BigBite water supply and energize magnet coils (J. Beaufit).
Move HMS to 35.8^o and set momentum to 2.31 GeV/c - check how much space will be available (S. Lassiter).
Exchange Gep-III S0 scintillator plane in HMS detector stack for WACS S0 plane (B. Wojtsekhowski, A. Shahinyan, C. Perdrisat, H. Mkrtchyan).
Prepare trigger and timing as a result of S0 change (B. Wojtsekhowski, M. Jones).
Move HKS magnet in order to clear space for BigCal (W. Kelner).
Move BigCal into position -26.5^o, 12.0 m (W. Kelner, L. Pentchev).
Complete Hall C ESAD and E07-002 supplemental ESAD checklists and give to run coordinator (W. Kelner).
Run coordinator should give completed checklists to D. Skopik.

3.1 Pre-beam Preparation (01/25 Swing - D. Hamilton)

Take cosmic data - check DAQ, online analysis tools.
Check detector HV, ADC pedestal widths and operational remote controls including target mechanisms, BigBite power supply and HMS magnets.
Move to empty target.

3.2 Check Beam (01/25 Swing - B. Wojtsekhowski)

Bring beam into the hall and make measurements of position, charge and energy (2 hours - MCC makes HarpScan, M. Jones check results).
Turn BigBite magnet on when beam is set up and look for change on beam dump camera.

3.3 Endpoint Commissioning Data (01/25 Swing/Owl)

Endpoint kinematics:
HMS Angle / Momentum = 35.8^o / 2.31 GeV/c
Ensure trigger is set to single-arm HMS (change pre-scale factors).
Change target to carbon foil and take HMS alignment data (15 mins).
Change trigger to coincidence.
Change target to 20 cm LH₂.
Set calorimeter discrimator threshold to 1.4 GeV.
Take endpoint data:
BigBite magnet on - check deflection (15 mins).
BigBite magnet off - check resolution, BigCal alignment (30 mins).
Change target to 15 cm LH₂ with 9 % Cu radiator.
Take endpoint data:
BigBite magnet on (15 mins),
BigBite magnet off - learn more about counting rates, deadtime and BigCal threshold (30 mins).

3.4 Off-endpoint Production Data (01/26 Day)

Move HMS to off-endpoint kinematics:
HMS Angle / Momentum = 38.3^o / 2.02 GeV/c
Change target to dummy target and take data - check background from target walls (15 mins).
Change target to 15 cm LH₂ with 9 % Cu radiator.
Take off-endpoint data:
BigBite magnet off (15 mins).
BigBite magnet on for production running.
Make Moller measurement and check that beam energy and Wien filter are consistent (1 hour - D. Gaskell, T. Horn).

Appendix A
Shift Schedule

	Owl Shift	Day Shift	Swing Shift
01/25Fri		SL: P. Bosted	SL: K. Slifer TO: M. Khandaker OLA: D. Hamilton
01/26Sat	SL:P. Markowitz TO:S. Danagoulian OLA:M. Meziane	SL:H. Baghdadaryan TO:P. Bosted OLA:E. Chudakov	SL:R. Lindgren TO:K. Slifer OLA:W. Luo
01/27Sun	SL:P. Markowitz TO:S. Danagoulian OLA:M. Meziane	SL:H. Baghdadaryan TO:G. Mbianda OLA:R. Lindgren	SL:K. Slifer TO:D. Day OLA:W. Luo
01/28Mon	SL:P. Markowitz TO:J. Maxwell OLA:A. Puckett	SL:R. Lindgren TO:V. Mamyan OLA:E. Chudakov	SL:D. Day TO:M. Khandaker OLA:W. Luo
01/29Tue	SL:P. Markowitz TO:J. Maxwell OLA:A. Puckett	SL:K. Slifer TO:V. Mamyan OLA:E. Chudakov	SL:D. Day TO:G. Mbianda OLA:M. Meziane
01/30Wed	SL:P. Markowitz TO:M. Khandaker OLA:W. Luo	SL:R. Lindgren TO:G. Mbianda OLA:E. Chudakov	SL:D. Day TO:V. Mamyan OLA:A. Puckett
01/31Thu	SL:J. Miller TO:J. Maxwell OLA:W. Luo	SL:C. Perdrisat TO:V. Punjabi OLA:	SL:H. Baghdadaryan TO:V. Mamyan OLA:A. Puckett
02/01Fri	SL:J. Miller TO:J. Maxwell OLA:W. Luo

SL: Shift Leader
TO: Target Operator
OLA/3rd: Online Analysis/3rd

Appendix B: Contact Information

Run Experts

Name	Responsibility	Office	Pager	Cell/Home	Email
B. Wojtsekhowski	Run Coordinator	7191	584-7191	876-7191	bogdanw@jlab.org
	Program Deputy			876-7997
S. Wood	Hall C Leader	7367	584-7367	593-6656	saw@jlab.org
P. Bosted	Physics Division Liaison	5851			bosted@jlab.org
D. Skopik	Safety	7740	584-7740		skopik@jlab.org
B. Manzlak	Safety	7556	584-7556	897-2051	manzlak@jlab.org
	RadCon			876-1743

Hall C System Experts

Name	Responsibility	Office	Pager	Cell/Home	Email
W. Kellner	Technical	5512	584-5512	592-1527	kellner@jlab.org
M. Jones	Computing/Beam Energy	7733	584-7733	220-2073	jones@jlab.org
G. Smith	Target	5405	584-5405		smithg@jlab.org
S. Wood	Hall C Leader (DAQ/Slow Controls)	7367	584-7367	593-6656	saw@jlab.org
B. Vulcan	electricla (BigBite)	6271	584-6271		vulcan@jlab.org
D. Gaskell	Moller	6092	584-6092		gaskelld@jlab.org
T. Horn	Moller	7064			horn@jlab.org
H. Fenker	Detectors	7431	584-7431		hcf@jlab.org
C. Yan	Raster / Harp	7349			yan@jlab.org
J. Beaufait	Electrical (BigBite)	7131	584-7131		beaufait@jlab.org
F. Wesselmann	FPP	5566	584-5566		frw@jlab.org
D. Meekins	Target	5434	584-5434		meekins@jlab.org
H. Mkrtchyan	Detectors	7741			hamlet@jlab.org

GEp and WACS Experts

Name	Responsibility	Office	Pager	Cell/Home	Email
B. Wojtsekhowski	Run Coordinator	7191	584-7191	876-7191	bogdanw@jlab.org
C. Perdrisat	GEp	5304	584-5304	715-8608	perdrisa@jlab.org
L. Pemtchev	GEp / BigCal	7680	584-5462	508-3663	pentchev@jlab.org
A. Puckett	BigCal / Analysis	5124/5362		784-1241	puckett@jlab.org
W. Luo	BigCal / Analysis	5556		746-2224	weiluo@jlab.org
A. Meziane	FPP / Analysis			812-5824	mezianem@jlab.org
A. Shahinyan	Detectors	5516	584-5442		shahinyan@jlab.org
D. Hamilton	Analysis	5516		+447912524884	dhamilto@jlab.org
R. Gilman	WACS Spokesperson	7011			gilman@jlab.org

About this document ...

Run Plan for WACS E07-002
(January 25th - February 1st 2008)

This document largely converted by hand by R. Gilman from D. Hamilton latex, since LaTeX2html converters okay only for standard text, not math or tables.

David Hamilton 2008-01-25