Hypernuclear Spectroscopy Experiment
High Resolution 1p-Shell Hypernuclear Spectroscopy (JLab 94-107) Home
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How to bring up HAC control window
· The machine to run HAC is hacsbc2, the second machine from left. At the bottom of the screen is the linux taskbar. The Sixth symbol is tools luncher. Pressing the arrowhead opens a menu which has:
Alarm Handler, bogies_LEFT, bogies_RIGHT, bogies_SetSpec, JavaArchiverClient,
Menu_Accelerator, Menu_ESR, Menu_HallA, snapshot, StripTool
· Pressing the "Menu_HallA" label launches a subscreen titled "Hall A Main Menu". One of the entries is labled "Tools" . Pressing on the "Tool" button opens the "Hall A General Tools" screen as following, which is often refered as the HAC window. Make sure the spectrometers are set for 6 Degrees. Old version of HAC can be found here.
How to change momentum setting of HRS and Septum
· From the HallA General Tools window, there is a P0 SET field for each spectrometer in which you can enter the desired momentum setting. To change to a lower momentum from a higher previous setting, you just need to enter the momentum value. To increase the momentum setting, you need to cycle the magnets for Q2 and Q3 of either arm. That means increasing the current of the Left Q2/Q3 to 1600 A (or 1400 A for the Right arm), waiting for 2 minutes after the quadrupoles reach their maximum currents, then turning down the current to the desired setting by entering the correct spectrometer momentum into the main GUI. More detailed instructions are on the white board of the counting house. There's no need to cycle magnets for Q1, Dipole and Septum.
· Septum magnets are controlled by current.
For the right septa, this means the current can be calculated as I = 92.58*P0 where P0 is the spectrometer momentum is GeV/c and the current is Amps. For the left septum, the current is calculated as I = 94.22*P0 where P0 is the spectrometer momentum is GeV/c and the current is Amps. Note this is new as of 6/06/05! For a left HRS momentum of 1.960 GeV/c, the left septum should be at 184.67 Amps. Read back current (labeled Magnet Current on the septum controls page or showing as the only septum current on the Hall A tools page) should be within 0.5 Amps of this value (using a strip tool will help you filter out the noise on the readback of the magnet current). For a right HRS momentum of 1.570 GeV/c, the right septum should be at 145.35 Amps. (Conscientious and/or bored shift workers will double check the arithmetic.)
How to bring up the Alarm Handler
· As HAC control window, press the "Alarm Handler" label in tools lancher. When an alarm is triggered, the bottom "Alarm Handler" will flash, then you can press that bottom to see where the problem is.
Plot time dependences of EPICS variables
· As HAC control window, press the "StripTool" label in tools lancher, which lets you plot any EPICS variables versus time.
How to bring up the Beamtime Counting Table
· Logon to "adaqs2" or "adaqs3" as user "adaq"
· cd to ~adaq/ACCOUNT
· type "atable"
· password: you will find passwords for various experiment/equipment user accounts (on the counting house machines) on a piece of paper taped to the top-right of the counting house white board.
How to run CODA
· Logon to "adaql2" as user "a-onl"
· Normally, runcontrol will be already running. If not, see section Cold start below. To start and stop runs, push the buttons "Start Run" and "End Run". Start Run is the same as the sequence prestart, go.
· To change configurations, use the "Run Type" button. If you've been running, you will first have to push "Abort" button. Choose the configuration from the dialog box, then press "Download".
· More details about Hall-A DAQ and trigger see in Bob Michaels guide.html and guide2.html.
Cold start
·
Kill
all CODA process on the workstation where CODA is running by typing
from
anywhere on the relevant account and relevant computer
> kcoda
·
For
data monitoring type
> datamon
·
Run
> rcServer
in any window and leave it.
·
Start
CODA by
> runcontrol
It will start runcontrol GUI. Then press
the Connect
button. After "connect", wait 10 seconds, then press "Run
Type"; a dialog box pops up and you must choose the configuration you
want, which is presumably "COINC". Then press download and wait about
30 seconds. Now you can "Start Run" to start a run (see section How
to run CODA before).
· More details about Hall-A DAQ and trigger see in Bob Michaels guide.html and guide2.html.
How to download and check the trigger
· Logon to an ADAQ Linux box like adaql1 or adaql2 as user 'atrig'.
·
Run
> trigsetup
·
A
self-explanatory graphical user interface pops up, where you must enter
the
Left spectrometer momentum and particle ID, and the right spectrometer
momentum
and particle ID, and then press "Download" and wait for it to finish.
The trigsetup script does
call a
specific script to adjust delays on both of the HRS pair. The user
should look
for suspicious error messages in the window from which trigsetup
was launched, e.g. to check if connection to the crate is ok.
More details are described in Bob Michaels page Loading and
Checking
the Hall A HRS Trigger.
How to start HALOG
·
As
user 'adaq' on any 'adaq..'
machine, simply type
> halog
· Entering text is easy and straightforward. After submitting the entry, the white text on blue background in the lower right corner of the window should read 'Entry complete', otherwise something is wrong.
· Entering graphics: Click 'Grab Screen' in the bottom button row of the halog window. The halog window will disappear, and the window the cursor is in will become the active window, its outline flashing. By moving the cursor you can select any window to be selected, by clicking on the left mouse button. You also can select an arbitrary part of the screen by holding down the left mouse button and dragging the cursor along. All the time a rectangle will flash that indicates the selected area. Releasing the mouse button will then cause this screen area to be included into the entry. It will show up as a thumbnail picture in the halog window, where you can discard it or accept it, or go for a second screen grab. The images are in GIF format.
· More details about HALOG see in halog HOWTO and FAQ page.
How to start beam counting script
· logon to 'adaql1' as user 'adaq'
· type tkABU from any directory
How to reset the VDC high voltage
· Bring up the HallA General Tools window per the above instructions
· In the "VDC HV" section, set HV to 0
· In the "Miscellaneous" section, click on the "Crate Resets" button.
· In the "Hall A Slow Controls" window, press the "Reset" button associated with the tripped HV crate.
· Go back to set HV values to 4.0 kV
How to start spot++ and check raster
· Logon to 'adaqlN' (where N is a integer) in account 'adaq', which is the first machine from left.
· Make sure CODA is running with beam
· Type spot++ from any directory, after about 30 seconds, 3 plots will pop up.
How to start xscaler (HRS) and check trigger rate
· Log on to "adaqs3" as user "adaq", which is the top machine in the far right
· Type golscaler or gorscaler to goto left or right scaler dir
· Type xscaler
· You can find all trigger rates in Left-Arm xcaler window: T1-T5 in Page6, T6,T7 in Page7
· Trigger type: T1- R Scint/ T2- R effic/ T3- L Scint/ T4- L effic/ T5- T1&T3/ T6- T3&!A1&A2/ T7- T1&T6/ T8- 1kH pulser
What/where to check VDC
· VDC status can be checked on the HallA General Tools window (see above). High Voltages and Gas Flows are constantly being monitored.
What/where to check target information
· The target temperature is displayed on the target GUIs,tgtcharts，running on cryotarg as well as on the camera monitors on the shelves above the computers. Look at the camera monitor labeled "Control Rack", third top little monitor. It displays the information for the waterfall and solid targets although the display is normally used for cryotargets. Ask the RC for help if you can't find the what you need or it doesn't make sense.
How to reboot HRS crates
·
If
the GUI for the LeCroy HV is white
(blank): reset the
Arcnet - the reset key is located on the
"crate
resets" window of the tools menus.
If the reset doesn't help you need to call the RC for advice.
How are the ROCs connected to the port server:
· ROC2 : telnet hatsv4 2002
· ROC3 : telnet hatsv4 2003
· ROC4 : telnet hatsv6 2009
· ROC14 : telnet hatsv5 2014
· TS1 : telnet hatsv4 2014
· TS2 : telnet hatsv6 2010
· If the portserver ask you the login name, use "adaq" as the user. The password is the same as in the counting house computers.
How to print in the counting house
(This
is from Ole Hansen, 16-April-2004) There are apparently some problems
with
printing in the counting house. The problem is with the
configuration of
the "pdq" utility and the
"cha2hp" printer. The
Printing from the command line:
· rlpr -Pcha2hp -Hjlabprt file.ps
Printing form Mozilla:
· File->Print...
· Choose to print to printer, not file
· Click on "Properties" (or "Configuration"?) of printer
· In the field for "Print command", enter: 5 /apps/bin/rlpr -Pcha2hp -Hjlabprt (you should only have to do this once for each account)
· Click "Print"
Alternatively,
you can have Mozilla print to a Postscript
file,
which you can then print from the command line.
Trying to print to cha2hp from a CUE machine (e.g. jlabl1) using pdq will also fail. This is not a problem
specific to the
counting house computers. Only lpr
and rlpr will work with this printer.
How to start online analysis
·
2. Type
"goonlana" (without the quotes)
[This takes you to directory ~/$EXPERIMENT/onlana
".x detReplay.C"
.x online.C+("detectorL")
.x online.C+("detectorR")
.x online.C+("detphysics")
6. COMPARE with REFERENCE plots
(located near ADAQL2)
7. Quit the analyzer with ".q" (w/o quotes) and then goto
step (3) for the next run.
For PHYSICS REPLAY
(when in production):
2. Type "goonlana"
cd ../ana
4. At the analyzer
prompt, type ".x physReplay.C" (w/o quotes)
to analyze.
.x online.C+("physics", run #)
The first page of the online
GUI should give histograms for ctTot5, ctTot7, ctAeroK, and emKe.
6. COMPARE with REFERENCE plots
located into HALOG. (There will be printed
copies when all of the calibrations will be fixed).
7. Edit the file "runlist" and add the list of runs you are analysing (located in ./adaq/e94107/ana)
8. Quit the analyzer with ".q" (w/o quotes) and then goto
step (3) for the next run
9. To speed things up, a second run can be replayed using
a different machine (adaql6).
If you have questions or other problems that can not be solved
· Call the Run Coordinator A.S.A.P.
How to do a harp scan
· How to do a harp scan is explained on this page.
Hypernuclear (JLab 94-107) Home
Pete Markowitz 2005 May 20