VNMRJ3.1

Last-modified: 2015-07-28 (Tue) 10:49:23 (3197d)

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Settings

savedatasetup.png

When you follow the setting, you can use "scanlog" command.
scanlog<RET>
scanlog username<RET>

ERRORS from EPI seq

We are having many lines of
'NONE': not found, value assigned to zero.

When "Prep to Scan" button is clicked,
X gradient value -85504 is outside +/-32767 range. abort!
P.S.G.Aborted....

  The EPI bug crept in when we "fixed" the way the limits are checked for PE gradients, using nv and nv2 as the default.  But in EPI, those functions aren't being used as conventional phase encoding events, so the default multipliers are wrong.  Since then, we added some new "var_oblshapedgradient" functions that use "1" as the multiplier, instead of nv.  That requires them to be defined in macros.h, which I've attached here.  To use this, log in as vnmr1, go to /vnmr/psg and move the macros.h file to macros.h.orig.  Then copy in the attached file.  Put epi.c in your psglib and compile, and you should eliminate the error.

waveform buffer is null for GradientController. abort!

tr is longer than the one expected.

Use the newest epi sequence
aqtm=at


Mismatch in sum of dwells (1071.400us) v.s. gradient duration (1080.000us)

Now the duty cycle limit of RF amplifier is 22%. We should set TR>=19ms for 4ms rf excitation pulse(gemsir).

  • vp:DSP scan overrun (repetition rate too high) -- Ken? 2012-05-24 07:25:21 (Thu)
    >>Set 'skip' parameter longer(e.g. 140)
    rebooting console may help
  • skip gplan('setValue','pss0',ppe2) in im3D -- Ken? 2012-05-25 05:14:25 (Fri)
  • FIFO underflow -- Ken? 2012-06-12 07:31:55 (Tue)
  • "Abort Acquisition already in progress" >> restart the vnmrj program -- Ken? 2013-02-20 09:11:36 (Wed)

User VNMRJ environment setting(Be careful. Better not to do it by yourself. It can damage your setting.)

  • run vnmrj
  • quit immediately
  • run the script "/usr4/uken/Cprogram/script/vnsetup"
  • do viewport setting
  • click "gock" button.

User VNMRJ environment update

  • run the script "/usr4/uken/Cprogram/script/vnupdate"

Problem and solution

sp3(acquisition trigger) switches with gradient pulses

  Bridge.cpp
  <<if (volumercvStr[0] == 'n') splineon(3);
  >>//if (volumercvStr[0] == 'n') splineon(3);
  fixpsg(by vnmr1)
  (*psggen is for local psg update)

numrfch problem for "config" (Only up to 5 number is acceptable)

  edit /vnmr/template/vnmrj/interface/vconfig.xml
  and edit conpar to have 1<=numrfch<=8

thk automatic setting for 3D(imaging/maclib/im3D)

  comment out the "gplan" line

spline resetting

  Now 'su' cannot reset the status.
  Maybe no need to control but we had some problem on the status line. Why???
  It seems the status lines are reset whenever the acquisition stops.

euler angle display cannot be updated at plan window.

  Update the plan layout

No beep sound after the acquisition.

Dark line at the center of the images with gemsir_ns_riken2

  • vnmr1 environment issues
    • jview buttons don't appear.
    • When vnmrj opens, "jviewportlabel[5~9] index out of bounds" errors are shown.
    • Limited number of experimental protocols are shown.
  • Other issues
    • When we do gocheck,
    • "Cannot get parameter: NONE" x 9 times
    • "'NONE': not found, value assigned to zero." x 6 times
       rfGroupMap setting was the issue. rfGroupMap needs to be '11111111'.
  • image trigger issue( initial statement is strange) -- Ken? 2012-06-18 02:48:51 (Mon)
    • Only for sp3
  • min_esp issue? -- Ken? 2012-06-18 04:46:20 (Mon)
  • nf,nfmod setting -- Ken? 2012-06-18 06:00:22 (Mon)
  • nfmod=nv, nf=nfmod x ns -- Ken? 2012-06-18 06:53:35 (Mon)
     petable=epi66lin2k & ns=5 case, nfmod=66, nf=66x5=330
  • Scantime display is strange for EPI(2min5sec for 12min30sec case) -- Ken? 2012-06-21 06:36:20 (Thu)
     Fixed the epi sequence code.
  • 'acquiring' even after the acqisition finished(gemsir_N_seg) -- Ken? 2012-06-21 09:47:17 (Thu)
  • network switches were replaced. (frame=1141) -- Ken? 2012-07-06 06:20:39 (Fri)
  • Receiver(s) have failed to complete data upload. -- Ken? 2012-07-25 02:31:35 (Wed)
    'su' may solve the problem.
    Reset button for the master board solved the problem.
  • FIFO underflow happened for the 4th epi run -- Ken? 2013-02-15 07:44:55 (Fri)

Switch between vnmrj3.1 and vnmrj3.2

  change the symbolic link of /vnmr
  update users
  reset the console
  setacq
  dbsetup

psg update

by steve

 Console.cpp,RFController.cpp(Marked by 'SAS')

Patch for Vnmrj3.2

 [uken:adrian]/vnmr/adm/patch> ls
 3.2AacqLNXall301/  3.2AbinLNXall304/  3.2AjreLNXall501/  3.2ApsgLNXall101/
 
 patchinstall 304 (Jul.4,2012)

Chartstrip

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5(3): Magenda
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