Acknowledgements

LATEX version (escaped special characters):

We thank the RHIC Operations Group and SDCC at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support.  This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, NSTC Taipei, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium f\"ur Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan Society for the Promotion of Science (JSPS) and Agencia Nacional de Investigaci\'on y Desarrollo (ANID) of Chile.

UNICODE version (native UTF characters):

We thank the RHIC Operations Group and SDCC at BNL, the NERSC Center at LBNL, and the Open Science Grid consortium for providing resources and support.  This work was supported in part by the Office of Nuclear Physics within the U.S. DOE Office of Science, the U.S. National Science Foundation, National Natural Science Foundation of China, Chinese Academy of Science, the Ministry of Science and Technology of China and the Chinese Ministry of Education, NSTC Taipei, the National Research Foundation of Korea, Czech Science Foundation and Ministry of Education, Youth and Sports of the Czech Republic, Hungarian National Research, Development and Innovation Office, New National Excellency Programme of the Hungarian Ministry of Human Capacities, Department of Atomic Energy and Department of Science and Technology of the Government of India, the National Science Centre and WUT ID-UB of Poland, the Ministry of Science, Education and Sports of the Republic of Croatia, German Bundesministerium für Bildung, Wissenschaft, Forschung and Technologie (BMBF), Helmholtz Association, Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan Society for the Promotion of Science (JSPS) and Agencia Nacional de Investigación y Desarrollo (ANID) of Chile.

STAR Funding Agencies

STAR is supported by several funding agencies in countries on four continents, in addition to significant support from STAR member institutions. Here is a list of STAR funding agencies, with links to their web pages.

	Office of Nuclear Physics, Office of High Energy Physics, Office of Science, Department of Energy United States
	National Science Foundation, United States
	Frankfurt Institute for Advanced Studies, Germany
	Institut National de Physique Nucleaire et de Physique des Particules, France
	Fundação de Amparo à Pesquisa do Estado de São Paulo, Brazil
	Ministry of Science and Technology, Russia
	National Natural Science Foundation, China
	Chinese Acadamey Of Sciences (CAS), China
	Ministry of Science and Technology (MoST), China
	Department of Atomic Energy(DAE), India
	Department of Science and Technology, India
	Grant Agency of Czech Republic, Czech Republic
	Research Council of Fundamental Science & Technology (KRCF), Korea
	Research Foundation, Korea

Pixel related images

SketchUp STAR

SketchUp STAR

3D models of the STAR detector, the RHIC accelerator complex, a prototype of an event display for the STAR experiment in SketchUp

 

Tai Sakuma

 

I drew the STAR detector and the RHIC accelerator complex in SketchUp. Also, I built a prototype of an event display for the STAR experiment by using SketchUp Ruby API. This page shows image files generated in this project.

 

The STAR detector

A cross sectional view of the STAR detector. This figure was used in Phys. Rev. D 86, 032006 (2012) (DOI: 10.1103/PhysRevD.86.032006 )

The same 3D model as in the previous figure but in perspective. This figure has been often used in presentations at scientific meetings.

RHIC

The RHIC accelerator complex

STAR detector subsystems

The Beam-Beam Counters (BBC)

The Barrel Electromagnetic Calorimeter (BEMC)

A BEMC Module

The geometry of the calorimeter towers in a BEMC module

The Time Projection Chamber (TPC)

The solenoidal magnet subsystem

Jet η and detector η

Jet η and detector η

Jets at three levels

The following three figures illustrate jets defined at the three different levels. These figures have been used several times in scientific meetings, e.g., the slide 4 of a presentation at APS 2010 .

A high-p_T back-to-back dijet event at the detector level. The solid trajectories indicate TPC track measurements while the lego blocks indicate energy deposited in the BEMC towers.

A high-p_T back-to-back dijet event at the hadron level

A high-p_T back-to-back dijet event at the parton level

Jet Patch Trigger

The locations of the twelve jet patches of the BJP1 trigger in Run 6. The size of a jet patch is 1.0x1.0 in the η-φ coordinate system. Each jet patch contains 400 BEMC towers. This figure was used in Phys. Rev. D 86, 032006 (2012) (DOI: 10.1103/PhysRevD.86.032006 )

Event Display

I developed a prototype of an event display for the STAR experiment using the SketchUp Ruby API. This prototype was used in jet analyses, in particular, in establishing a jet definition and determining background events.

Two snapshots showing a prototype of an event display for the STAR experiment

Electronics Lab private network

 

Plan Overview:
 

In Room 1-232 (the "Electronics Lab"), our goal is to remove experimental test equipment and unsupported (or poorly supported) computer systems from the "public" network.   These are likely sources of Cyber Security concerns and may benefit from a less volatile network environment than the campus network.  To do this, we will create a private network in the Electronics Lab, with one maintained Linux node that will be dual-homed on the public network to act as a gateway to access the private network as needed.   With the introduction of one (or more) Linux box(es), eventually we hope to retire the old Sun workstation completely.

The address space we will use is 192.168.140.0/255.255.255.0 (256 IP addresses).  This is "registered" with ITD network operations as a STAR private network, so that if anything "escapes" from the private space into the campus network, they will know who to call.

Given the short list of anticipated devices (below), no name server is planned, nor other common network services such as DHCP (subject to change as needed). 

Devices Using This Network:

1. The Linux gateway system -- presley.star.bnl.gov (Scientific Linux 4.5) using 192.168.140.1
2. One Sun Ultra E450 -- "svtbmonitor" (Solaris 8) using 192.168.140.2 
3. One serial console server using 192.168.140.3 
4. Several (~4-5) rack-mounted MVME or similar devices at any time.  An initial set have been assigned 192.168.140.11-15.  A set of working sample boot parameters are included in a file attached to this page (see the links in the Attachments section below).
5. Update August 4, 2009:  Six more processors are being added to the network.  The name trgfe6 through trgfe11 have been assigned 192.168.140.16-21 (ie. added to /etc/hosts on presley and svtbmonitor).
6. Several Windows PC's, including laptops that may come and go (which will require manual configuration -- a small inconvenience that can perhaps be overcome with networking "profile" software that stores multiple configurations on the node -- to be investigated, such as http://www.eusing.com/ipswitch/free_ip_switcher.htm ) 

Status:

A Linux box named presley.star.bnl.gov is configured on the public network, with a second NIC using 192.168.140.1 to act as a manual gateway node as needed.  It is in the south-west corner of the lab.  An account named daqlab has been created (contact Wayne or Danny for the password if appropriate)

 

For the effort to replace svtbmonitor,  the home directory of svtbmonitor's testlab account have been copied over to presley in /home/svtbmonitor/testlab. 

Danny and Phil identified a handful of files from svtbmonitor as important so far:

• emc.tcl
• smd_qa.tcl
• tower_qaodt.tcl
• grab (compiled C code to open a window and connect to a specified node on the serial console server)
• grab.bag (used by grab to "resolve" common names into ports on the console server)

The original versions of these files are all in their original (relative) paths, and modified versions for presley and the current networking setup were created and put in /home/daqlab/.  The Tcl scripts were modified to account for the slightly different environment on presley and were demonstrated to work (at least the basics - still needs testing to confirm full functionality).  The "grab" executable had to be recompiled from source (simple enough - the required source code consists of "grab.c" and only required a single minor change for the new environment on presley).  So far so good there.

 

Two small "desktop" 10/100 Mbps switches have been connected to each other to serve as the "backbone":

• one is on a shelf on the west wall
• the other is on a shelf on the north wall

 

This is easy to expand with one or two 16-port switches if needed (well, it actually is needed as I write this...).  (In fact, these switches have been rather fluid in the first months, coming and going and being swapped for others, all at a slight inconvenience to those of us trying to work with them...)

[Feb. 19, 2009 update -- the physical layout of switches and cables has been switched around many times since this description and I don't know the current state.]

The old networking (not to mention the serial lines) is a mess of cables, old hubs and switches that I plan to ignore as long as possible, though most should be removed if it isn't nailed down.  [Feb. 19, 2009 - some clean up appears to have been done by the folks working in the lab.]

 

To Be Done, moving from svtbmonitor to presley (last updated, Feb 19, 2009):

Towards this end we've identified the following remaining tasks:

Configure backups of the home directories on presley as another safety net for the critical content from svtbmonitor that has been transferred over.

Jack Engelage and Hank Crawford have transferred a bunch of files from svtbmonitor to presley [are they done?].  A "trigger" group was created containing Jack, Chris and Hank.  They have /home/trigger to share amongst themselves.

The biggies: 

VxWorks compilers for Linux and booting the VME processors from presley.  [Feb 19, 2009 update:  Yury Gorbunov (and Jack Engelage?) have made successful boots of trgfe3 from presley via FTP, so it looks like svtbmonitor has a chance of being retired at some point.  Sample boot parameters are attached]

 

Ralph test area

This is my first test page.

Shutdown schedule

Bedagadas Mohanty

 

 

 

Figures from STAR publications

Baryon to Meson ratio  v₂ vs. Beam energy  low p_T spectra    particle ratio

 

Jet                              Typical dijet-event         Raa/dau 

 

Theory Figures

Cross-over                   Phasediagram

 

 

 

 

genevb: miscellaneous working plots

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