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number of workstations and PC's are used in the Department to support the
research of graduate students, staff, and faculty. These include more than
twenty Unix-based Silicon Graphics Super minicomputers, DEC stations, Sun
Sparkstations as well as numerous IBM PC compatible and MacIntosh computers.
The workstations generally have high speed, high resolution graphics capabilities
and support many simultaneous remote users. All of the Departmental computing
resources are linked via Ethernet with Novell and NFS software. The Departmental
network also provides high speed access to the University Computer Center
mainframes and Internet.
Computer Center contains two 8-processor Silicon Graphics Super minicomputers,
both of which employ RISC processors and very large core memory. These
are devoted exclusively to the computer needs of researchers in the science
departments. In addition, there are two AMDAHL 5860 systems.
library houses a collection in excess of one million bound volumes plus
microfilm and government
document holdings. The library subscribes to more than 250 journals in
the physics/astrophysics/astronomy area. An aggressive monograph acquisitions
program is maintained.
Paramagnetic Resonance (EPR) and Electron-Nuclear Double Resonance (ENDOR)
instrumentation includes X-band (10 GHz) and K-band (24 GHz) equipment.
One spectrometer in each frequency band is equipped with apparatus for
low- temperature irradiation (visible, UV and x-rays) and study of samples,
specifically single crystals. Temperature control capabilities permit studies
from 4 K to beyond 300 K. X-ray diffraction equipment suitable for orienting
and aligning crystals is also located in the laboratory. Sample preparation
facilities include a well-equipped chemistry laboratory for general purpose
use and for crystal growth.
resonance instruments are controlled by microcomputers which can also be
used for preliminary data
analysis. Other microcomputer facilities are available in the laboratory
along with two graphics workstations (DecStation 3100 and Silicon Graphics
Indigo2). The Silicon Graphics system includes molecular modeling and molecular
display software. All computer systems are networked together and have
access to Internet.
instrumentation exists in the Department to support the GSU heavy-ion research
at the Oak Ridge and Brookhaven National Laboratories (see section below
in research facilities). These instruments include CAMAC and NIM bins and
a wide assortment of CAMAC and NIM modules used in experiments at GSU,
Oak Ridge, and Brookhaven. Computer equipment devoted to reduction and
analysis of these experiments includes several high speed workstations.
These include a new Silicon Graphics Indigo 2 workstation and two Vaxstations,
all of which are equipped with high-density 8-mm tape drives. A number
of personal computers are equipped with networking hardware and X-windows
software, enabling workers to use the high speed, 8-processor Silicon Graphics
computer in the GSU computer center and to use mainframe computers at Brookhaven
and Oak Ridge. A detector system for discriminating between relativistic
muons and pions using
"limited streamer mode"
detectors is under way in the Department and at the Alternating
Gradient Synchrotron at
Nuclear Physics Research
Physics researchers at GSU regularly make use of the facilities at the
Oak Ridge and Brookhaven National Laboratories. A 25 MV electrostatic accelerator
is available at Oak Ridge, which is being developed into a radioactive
beam facility. At Brookhaven the Relativistic Heavy Ion Collider (RHIC)
is under construction. When completed in 1996 this accelerator will be
the premiere nuclear physics research facility in the world. Workers at
GSU are involved in design and construction of one of the two large experiments
that are intended to be on-line when RHIC is completed in 1996. At the
present time experiments in relativistic particle and heavy ion physics
are being carried out using the Alternating Gradient Synchrotron at Brookhaven.
Experimental work is under way at GSU and Brookhaven to develop muon detector
systems for the large RHIC detector.
positron annihilation lifetime spectrometer allows measurements of lifetimes
as short as 0.2 nsec to an accuracy of better than 0.01 nsec. Output data
are automatically stored, and can be printed, plotted or transferred to
the University's Mainframe Computer for analysis. This apparatus allows
investigations of samples under various physical conditions.
instrumentation in this laboratory includes a high resolution Ge detector
and a helium
refrigeration system which
can be used to perform experiments in the temperature range 10oK to 400oK.
In addition, a large amount of digital nuclear instrumentation is utilized
in the positron laboratory.
State/Semiconductor Optoelectronics Laboratory
solid state physics laboratory in the Department permits the performance
of experiments on electrical, thermal, optical and acoustical properties
of solids. These experiments have been important complements to research
in the positron annihilation and magnetic resonance labs. Equipment in
the solid state lab includes: induction furnace, high-vacuum equipment,
sputtering apparatus, helium cryostats, optical spectrometers and dielectric-loss
equipment in the optoelectronics laboratory includes a very low background
computer controlled cryogenic monochromator, a continuous flow cryostat,
a closed cycle refrigerator system, a CO2 laser system, a Fourier Transform
Infrared spectrometer (FTIR), a wedge wire bonder, high vacuum system,
a 32-channel (25 MHz) logic analyzer with a 2-channel 400MHz (4K memory)
digital scope, a circular variable Infrared filter system and a liquid
helium cooled bolometer/dewer setup. The data acquisition systems in the
laboratory are fully computer controlled via CAMAC (Computer Automated
Measurement, Acquisition and Control) and/or IEEE-488 (GPIB--General purpose
Interface Bus) interfaces. Some of the CAMAC modules in the system include
Gate delay generators, Transient recorders, Scalars, A/D and D/A converters,
multiplexers, and LAM generators. The DMA (direct memory access) crate
controller in this system permits very fast data
transfer. In addition to
the optoelectronic research, these systems are used for time interval
measurements in connection
with non-linear dynamics and neural network research. The modelling and
data acquisition is carried out using 386 and 486 (50, 66, 100 MHz) microcomputers
with graphic displays and peripherals (plotters, laser printers and a scanner)
with a high speed link to a Silicon Graphics computer and the GSU main
computer. AutoCAD (a drawing program), QuattroPro (a spreadsheet program),
and LaTex (a typesetting program) are used in drawing and document preparation.
Labs for Physics 1111K, 1112K
meet in rooms 210, 222, and 226 in the New Science Building. Physics 2211K
and 2212K labs usually meet in room 210. Physics 3500/8800 labs meet in
From the Five Points Marta
Transit Station, exit on the Peachtree Street side, go north on Peachtree
one block to Decatur Street. Then, go East on Decatur Street approximately
2 blocks. Before you reach the end of the 2nd block, you will see the GSU
Science Annex Building on the North side of Decatur Street across the street
from Mc Donalds. Enter the Science Annex Building and go to
the 2nd floor. There you will find the labs as well as .
the Physics lab coordinator,
Butler's office in room 214. Her phone number is (404) 413-6030. There
is an answering machine. Bring her your problems or concerns with the labs.
Labs will start meeting the
week of August 30. Monday labs will meet on August 30. Tuesday labs will
meet for the first time on August 31 and so forth.
Manuals for Physics 1111K,
1112K, 2211K, 2212K, 3500, and 8800 are only available at the printshop,
which is located at 6 Decatur Street. The phone number is (404) 523-2679.
The manuals are required. 1111K, 1112K, 2211K, and 2212K students also
need a clear plastic metric ruler and a calculator.
2211K, 2212K, 3500, and 8800
students must also have a bound quadrille ruled notebook. Composition ruled
notebooks are not acceptable. The Park Place Bookstore is a good source
Labs for Physics 1111K, 1112K,
2211K, and 2212K begin with a fifteen minute quiz covering the required
readings for the current experiment and review questions from previous
experiments. Yes, there is a quiz on the first day. Students who arrive
late will not be given extra time to finish the quiz. You must take the
quiz and do the experiment in the same period.
When you registered for a
course you also registered for a specific lab section. You must attend
that section. You may not permanently change lab sections without the lab
Physics 1111K, 1112K, 2211K,
2212K labs consist of thirteen experiments. At the end of the semester
the top twelve grades are averaged. The average lab grade makes up 25%
of the final grade for the course. If you miss more than one experiment
the missing grade is averaged in as a zero.
If you miss your lab
If you miss your regular
lab section you may attend another section if space is available. Before
the quiz ask the instructor if you may attend his or her lab. Please note
on the quiz and the experiment that you are a visitor and write down your
usual day, time, and room. This is the only way you can make up missed
Please note that each experiment
runs from Monday to Thursday. Once the week is over there is no chance
of making up the experiment. No special make up sessions are available,
ever. If you miss more than one experiment due to illness, military service,
or some other hardship, discuss the problem with your course professor.
Labor Day make up labs
Monday, September 6 is the
Labor Day holiday. The labs that would meet that day will meet at the usual
time and room on Friday, September 3. If you cannot make it to a Friday
lab you have two options:
to another section that meets during the following week. Be sure to write
on the quiz and experiment that you are a visitor and write down your usual
lab day, time, and room number.
Two: You may
use this as your drop grade. This is not a good idea; you don't want to
use your drop this early in the semester.
Sometimes a lab section has
to be cancelled. Cancellations will be posted here. If your lab section
is cancelled you may go to any other section. If you have a problem, consult
the lab coordinator
For detailed information, please visit The
Astronomy Program Website.
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