Founding Principle Investigator
PROF. TIMOTHY KOETH
Dr. Timothy Koeth is currently an Assistant Research Professor at the University of Maryland's Institure
for Research in Electronics and Applied Physics working with the University of Maryland's
space charge dominated 10 keV Electron Storage Ring (UMER). Additionally, he is a Guest Scientist at Rutgers University. Timothy earned both his Ph.D. and B.S. degrees in Physics at Rutgers University.
His thesis work in electron beam manipulations (a horizontal to longitudinal emittance exchange) was
carried out at Fermi National Accelerator Lab's A0 Photoinjector under the supervision of Dr. Helen Edwards.
Timothy has always had a deep interest in the physical sciences which has
led him to many great experiences. From attempting simple photon-photon
scattering experiments at age 5, to discovering 100 millicuries of lost
Radium-226 at age 13, earning an amateur radio license soon after, earning
a B.S. in Physics, working as a health physicist, building a 1.2 MeV
cyclotron, to earning a Ph.D. in Accelerator Physics, Tim
Koeth is always involved in some sort of academic pursuit.
The "Rutgers 12-inch Cyclotron" was inspired by Prof. Tom Devlin's Sophomore
Modern Physics lecture. Tim recognized the elegance of the cyclotron
principle and had to demonstrate it for himself. He approached his best
friend Stu Hanebuth about the idea of building a small cyclotron together.
This has been a very successful collaboration.
Originally the cyclotron was to be a fleeting experiment, but as it took
shape both Tim and Stu recognized that, from its unique offering, the
cyclotron should be used as a teaching tool. With that in mind, the
12-inch was designed for student use as well as student involvement in the
upgrade's final touches. Ultimately, it has been very rewarding to Tim to
see the cyclotron attract other full-time RU employees, talented visitors,
and most importantly to have so many students interested in accelerator science.
Tim Koeth has devoted his life to research and education. "There are just some
questions that keep me up all night," says Koeth, "and I will do my best to
answer them, or enable others to help answer them for me."
More can be learned about Tim Koeth at his web page.
Rutgers Cyclotron Co-PI
Stuart Hanebuth, known to his friends and associates as Stu, was born and
raised in Minnesota and fondly recalls spending summers on the farm and
fishing in one of the ten-thousand lakes. He graduated from Rutgers University, Cook College in 1995 with a B.S. in Environmental Science. According to Stu he was attracted to Environmental Science because, "It was the only degree that allowed a
chemist to work in a biology lab studying physics." Stu has always been
fascinated by how things are put together and how they interact with one
and other, from a very young age nothing assembled with screws and nuts
were safe. Stu's Mother often retells the story of how, at the age of 4,
Stu disassembled to garage door and rigged it to fall on his father's new
car when the door was opened; for the record Stu says that there was a,
"design flaw which resulted in the door's unfortunate collapse." As soon
as Stu was old enough to earn an allowance he would make his mother drive
him to Ax-Man , a local surplus store, so that he could by "good junk"which he used to build a variety of projects.
While at Rutgers Stu met Tim Koeth while selling Geiger counters on the
internet, the two quickly became friends. Tim encouraged Stu to get his
Ham Radio License and the two quickly achieved notability in the field by
conducting the highest frequency QSO ever recorded. The two met
regularly at the Rutgers University Surplus Store looking for any items
that they could add to their collection of the odd and unique. Tim and
Stu even teamed up to study the bioremediation of radium contaminated
soil in Northern New Jersey. The two planted a variety of vegetables in
the contaminated soil and measured the uptake of the radium.
Immediately after graduation Stu took a job working for an environmental
remediation firm based in Massachusetts, where he worked on The TWA
Flight 800 Response in Moriches Long Island, The Julie-N spill in
Portland Maine along with countless smaller oil spills and chemical
responses. According to Stu this was his first dream job, "I always
wanted to work with hazardous materials, I got my first respirator at the
age of 10!" From the field Stu moved into environmental, health and
safety training traveling around the country to deliver training for a
variety of companies. "This was my second dream job, I got to go into
all kinds of plants and factories and see how they work, and they paid me
for it," Hanebuth reports. Then one November afternoon, while he was
training a class on the proper transportation of hazardous waste, "When I
got my third dream job," working for a major New York Energy Utility
where he is now a maintenance manager in substation operations.
Stu describes himself as a hands-on scientist, "When Tim first proposed
the cyclotron I saw it as an opportunity to create a hands-on particle
physics learning experience, what I didn't know is that we were going to
spend most of the first three years looking in dumpsters for parts." It
didn't take long for the project to grow and for the team to realize the
potential for this cyclotron to be used as a learning tool. According to
Stu the cyclotron has offered more learning experience for him than he
had ever imagined; "In addition to learning about the physics behind the
cyclotron, we have had to teach ourselves about software development,
fabrication, project management and technical writing." While he readily
admits that the cyclotron has been pieced together from surplus parts he
proudly defends the machine, and the opportunity it offers for students
to operate a real accelerator. When asked why he is so passionate about
the cyclotron Stu said,"I have always been inspired by teachers that are
passionate about what they teach, I see this as my opportunity to inspire
young people to explore the world around them."
Instrument Maker for Rutgers Physics Machine Shop
Heavily influenced by his grandfather, Bill Schneider began his
machining career in 1979 two years before graduating from Edison high
school of New Jersey. Bill's grandfather worked as a toolmaker for Mack
Trucks in New Brunswick, New Jersey for over 40 years and became
supervisor for the transmission and rear differential division. Growing
up as a child, Bill has heard many stories of the days when machines
were powered by long belt driven shafts that ran along the ceilings of
the machine shops during that time. An interest and desire to make
things out of metal was soon to become a reality once he got his hands
on his first micrometer when he was in the sixth grade. "I was measuring
EVERYTHING with that thing and even used to carry it to school" Bill said.
After graduating high school, Bill worked full time in a production shop
sometimes making hundreds or even thousands of parts taking few years time.
"One has to pay his dues at the bottom if he wants to do the good stuff
Pay his dues, he did. "I always thought that I wanted to
become an engineer" Bill said. He then enrolled as a part-time
mechanical engineering student at Middlesex County College in Edison,
New Jersey and worked full-time machining. After working many years in
the field of production, he then took a position at a local machine tool
manufacturer making ultra high precision reamers and gun boring tools.
Even after acquiring over 60 credits from the county college, Bill still
had the desire to continue working with his hands, mind and talent he
developed over the years. Two years later in 1986, Bill was offered a
position as a lab technician for the Rutgers University Physics
department. He took the job even though the pay was a little less than
what he was making at the time. Bill thought that this would be a great
opportunity to do the type of work he always desired. His
responsibility for the first year and a half at Rutgers was divided in
half by having the responsibility to maintain and operate the helium
liquefier and the machining of laboratory instrumentation. With a large
project from SLAC on its way into the physics machine shop, Bill was
upgraded to Instrument maker. A CNC machining center and computer with
CAD/CAM was purchased for the production of the SLAC components and Bill
had become the person responsible for the programming, setup and
operation of the new automated system. Bill states "The parts that I
had made on that system vary from Box coring devices used on the Alvin
submersible to the PFIS structure for SALT(south Africa large telescope)
and just about everything in between."
As the years roll by, people come and people go throughout the
University. Some good people and some that, well, just won't be missed. Then we
have Tim Koeth, a fascinating individual. Bill and Tim met in the
electronics lab and over time they became good friends. Not just in the
laboratory but outside as well. Sometimes going to the beach or even
doing a little bit of photography, but most of the time was in the lab
doing science and thinking of new and exciting new ways to make a
diffenence in the world of science. "Tim is an incredible asset to the
physics department with a perpetual drive for science and his
cyclotron." Bill says. "Event though cyclotron's have been built around
the world, Tim's is special." Bill states. "With this being Tim's
creation, he had become a great manager for the cyclotron. There is a
small handful of people involved in the project and he always seemed to
know how to get everyone to work together."
Engineer for Princeton University's Physics Department
Since I can remember I was taking things apart, in high school I became productive by
receiving my amateur radio license and the knowledge of hamfests. I quickly filled
my parents basement, garage, shed, my bedroom, and brother's bedroom with electronics and
mechanical equipment. Shortly thereafter I left for Drexel University for my Computer
Science degree, which was intended to help bridge the gap between software and hardware.
The benefit of that degree was the coop program where I applied for a summer job at
the Princeton Plasma Physics Laboratory, where I got the interview thanks to my amateur radio
license. There I worked on the Current Drive Experiment-Upgrade, worked with several
technicians and physicists with a combined total of several centuries of experience.
They taught me all about plasma physics, tokamaks, and were happy to answer all my
questions and teach me all about their research. I was enlightened on so much good
stuff: vacuum, high power rf systems, high current dc power supplies, plasma
diagnostics, tokamaks, and the most important, the knob only goes to the right.
After I graduated they hired me on full time. There was a lot of versatility in
the job where I was able to work on Thomson Scattering Systems, Lithium evaporation
and sputtering systems, continued on helping with CDX-U, and even some computer
I enjoyed the work so much, I started to bring it home. I kept my eye out for vacuum
equipment at hamfests, and found there is a lot of equipment that shows up there. My
first project was a rotamak, which is a plasma confined by rotating magnetic fields
generated by rf. So I collected everything but a decent vacuum chamber. I was speaking
to my friend about it and he told me to speak to Tim Koeth. Tim who is always
interested in projects done outside the university quickly delivered a chamber. He
then asked if I would like to help with the cyclotron. Since it was making much greater
progress then my rotamak, I helped as much as I could. The cyclotron introduced me to
more physics, I was able to put my vacuum experience from plasma physics towards the
cyclotron. It has been a lot of fun helping with the cyclotron, getting together in
the evenings to do something creative. There is a lot of enjoyment in having to
scrounge hardware and materials to make it. To me there is nothing better than
working on a project that has no budget. It made it more challenging and rewarding
to see it in operation.
Currently I am working for the physics department at Princeton University. I have
moved from the high magnetic fields of the cyclotron and tokamak to femtotesla
magnetometers for brain imaging. Evenings are still spent working on new ideas and
planning future projects.
The cyclotron is proof, you donít need funding to build a experiment. The
craftsmanship of the cyclotron is incredible! It is amazing that something like
that can be built by a bunch of kids, and maybe other young students will come up
with projects that they want to build, and know they can do it.
Staff Member of Rutgers Computer Science Department
Douglas Motto is currently working for the Laboratory of Computer Science Research at Rutgers University as a Computer System Administrator and Programmer. This department directly supports the needs of the Computer Science Department at Rutgers University. Douglas Motto graduated from Rutgers University in 2001 with a Bachelor's Degree in Computer and Electrical Engineering. He is currently pursuing his second undergraduate degree in Physics. While taking a Nuclei and Particle Physics course taught by Tom Devlin he questioned his professor whether it would be fruitful for a student to built one's own particle accelerator and whether the professor would be willing to give advice on such a task. Tom introduced him to Tim Koeth which surprisingly had the same idea years before.
JIM (JIMBO) KRUTZLER
Owner of JK Electric
JIM (JIMBO) KRUTZLER
Jimbo will give me words about himself for here
IBA Cyclotron Engineer
Tim Ponter, the professional cyclotron Engineer, will give me words about himself for here
(In order of appearance.)
Rutgers Physics Student
Kent Horvath is currently an undergraduate at Rutgers University completing a major in Physics and in Philosophy. His participation with the cyclotron has come in several forms: machine shop work, assistance in electronics, theoretical work on the paths of the ions, and developing several animations of the cyclotron itself. Kent says "the small number of people involved, and the large number of projects to be completed" has allowed him to exercise several of his many interests. Outside of the cyclotron work, he has been involved in several projects with Rutgers' Physics professor Steve Schnetzer. First was with Schnetzer's Rutgers Diamond Group, whose aim was to replace silicon with CVD diamond for use in very harsh radiation environments. This research brought Kent to the CERN accelerator lab near Geneva Switzerland. Kent also worked with Prof. Schnetzer on the study of high energy cosmic rays in the HiRes collaboration. Recently, Kent has been involved in computational analysis for research ongoing at Brookhaven National Labatory under the supervision of Rutgers' Professor Mark Croft. Still considering his options, Kent Horvath suspects he will pursue a career utilizing his scientific training in either education or law.
Rutgers Physics Student
CAROLYN CHUN (2002)
I'm Carolyn Chun, a Rutgers alumna. I majored in physics and mathematics,
graduating in 2002, and am currently working on a Ph. D. in mathematics at
Louisiana State University as a Board of Regents Fellow, not to mention the
MFA in creative writing I'm working on after hours. I've been interested in
physics my whole life, but I've been interested in lots of things my whole
life. Music, math, physics, creative writing, and sports are just a few
life-long passions that I've been able to pursue, striving in all things to
do as unto the Lord.
I began working with the Rutgers high-energy physics group (Tim's group) in
the summer of 1999, right after my freshman year at RU, and got hooked. I
worked at an REU (research experience for undergraduates) at CERN in Geneva,
Switzerland the summer of 2001, in conjunction with the Rutgers group, and
returned home to discover my good friend Tim had built a cyclotron with his
friend Stu. Liam and I worked up some schematics for some magnet shims to
allow us to manually adjust the magnetic field of the cyclotron magnet.
What I learned from Tim's and Stu's cyclotron was more than the old addage,
"where there's a will, there's a way," though Tim confirms this again and
again. I learned that Tim has much too much free time. I learned that even
very, very difficult projects will probably appeal to someone out there. I
learned that I can just go ahead and do whatever it is I'm good at and hope
something will come of it someday. I'm imagining a tee shirt design based
on Tim and Stu that goes, "Build your own cyclotron." To me, it means that
I shouldn't waste my time, that I should do what I think is productive, even
if my "cyclotron" never gets noticed by anyone else, even if my "cyclotron"
isn't getting anyone else anywhere. So, thank you, Tim and Stu. Thanks
from the bottom of my heart.
And that's as deep as I get.
LIAM MAC LYNNE
Rutgers Physics Student
LIAM MAC LYNNE (2002)
Liam worked with the High-Energy Experimentalists (HEX) group from
1999-2000 and from 2001-2003. In addition to working with Tim Koeth and
Carolyn Chun on the cyclotron, he assisted Drs. Conway and Schnetzer in
an R&D project for the Large Hadron Collider being built at CERN, which
included beam tests at CERN and Fermilab. When he returned to the
department (after a woeful hiatus from physics research working in the
realm of computer science) to work with Dr. Thomson, Liam did data
analysis work for the HiRes project, looking for ultra-high energy
cosmic rays. The cyclotron was a welcome experience in lower-energy
high energy physics.
Liam is currently pursuing an Ed.M. degree in Secondary School Physical
Science Teaching at the Rutgers Graduate School of Education, and has
hopes of involving his future high school students in the cyclotron
JOHN McCLAIN and ROBERT FRIEDMAN
Rutgers Physics Students
ROBERT FRIEDMAN & JOHN McCLAIN(2003)
Rutgers Physics Student
I'm currently a student at Rutgers University, in my last undergraduate
semester. I became interested in science and math at a very early age,
and as a kid I remember getting up hours before school in order to watch
science shows on television, and spending many hours in libraries
reading more about math and physics. In high school I continued trying
to learn as much as possible, and participated in various math and
physics clubs. The cyclotron was my first real exposure to a project in
progress and I've learned a great deal from it. I've constantly been amazed
at the ingenuity and flexibility of Tim and everyone else involved in the project.
It's also been very interesting to see exactly what's required for the planning,
research, and execution
of various tasks involving the cyclotron's construction and refinement.
Currently I'm involved in designing a 2 dimensional positioning device in order to
map out the magnetic field in the cyclotron to check for any
irregularities which may be affecting the beam. The cyclotron makes me
appreciate just how far hard work and creativity can go in accomplishing
a goal. It's also been very rewarding to utilize knowledge from books
and lectures in such a hands-on way.
Rutgers Physics Student
Doug Cahl is currently in his last semester at Rutgers University, where he
is an undergraduate student studying Physics. Although his involvement with
the cyclotron, which began during one of his lab classes in Spring, 2004, is
his first experience in this type of project, he has always been interested
in the opportunity to apply the theories he has learned in lectures and is
very excited to be working with Tim. Doug has been hands on in the
designing of a 2-dimensional computer controlled slider with a measuring
device attached, which will be used to map out the current magnetic field of
the new 12inch magnet. The purpose of the map is aide in the design of new
pole pieces to shape the field so it is symmetric once again.
"I have learned a great deal about the effort and time that goes into making
accelerators like this one." Doug has said many times to Tim
Rutgers Physics Student
Tim Ponter, the student, will give me words about himself for here
Hunter College High School Student
Heidi will give me words about herself for here
AKG - Aaron, Kiersten, and George
Aaron Rosenberg is in the graduation class of 2012 where he is
majoring in physics. Aaron first became involved with the Rutgers
cyclotron when he and his then lab partners, Kiersten Ruisard and
George Hine, enrolled in the modern physics lab where Tim was generous
enough to let the three work exclusively on the cyclotron. During that
semester, the Aaron, Kiersten and George designed, simulated and
tested AVF pole tips while becoming even closer as friends. In
addition to helping with the Rutgers cyclotron, Aaron is conducting
research with Dr. Misha Gershenson in applied superconductivity. With
numerous interests and career options available, Aaron is considering
pursing graduate study in beam physics, superconductivity or
KierstenKiersten is a physics major in the graduating class of 2012. She became involved in the cyclotron project as a junior, along with her lab partners George and Aaron. Kiersten helped design spiral-shaped AVF pole tips for the 12-inch cyclotron, modeling the magnetic fields and assisting in making magnetic field measurements. As a result of her work with the cyclotron, she spent the following summer at the University of Maryland, working with Tim to design and model an extraction section for the University of Maryland Electron Ring(UMER). Kiersten has also explored the fields observational astronomy and gravitational wave research during her undergraduate career, and is keeping super secret about which field of physics she will be pursuing for graduate studies. When not keeping up with physics, Kiersten enjoys dancing, horseback riding and being an art school dropout.
George Hine After completing his chemical engineering degree in 2010, George decided to spend another year at Rutgers to get a B.S. in physics to prepare for a physics Ph.D. program. In this time, he worked with Kiersten Ruisard and Aaron Rosenberg designing spiral azimuthally varying field (AVF) magnetic pole tips. During the development of the Spiral AVF.s, George specialized in design, drafting, and 3D modelling, using Solidworks software. Kiersten and Aaron ran coupled theoretical simulations and their input was used to improve George.s tip design. The iterative and cooperative nature of the project fostered a strong friendship between the three students. The experience with the cyclotron had such a strong impact on George that he changed his original research plans to pursue intense laser-matter interactions and their applications to accelerators under Prof. Howard Milchberg in the University of Maryland. He began pursuing his Ph.D. program there in June 2011.
The AKG unit (2011)
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