The following research programs are currently active
at XIA, with either Small Business Innovative Research (SBIR) Phase
I or II funding or internal R&D funding. Each scientist or engineer
typically participates in several programs, depending upon areas of
expertise, time constraints, and programmatic success. If you are skilled
in several of the areas noted above and find these projects interesting,
please contact us.
- PXI Card Coincidence Spectrometer - "PXI" (0 openings)
This project involves modifying the design of our high precision digital gamma
spectrometer so that 4 channels can operate on a single PXI card, while implementing
high speed coincidence detection between channels on neighboring cards. The
final cards will be used to instrument applications as diverse as small nuclear
physics experiments to arrays of detectors for locating diverted nuclear materials.
Outstanding project goals include: Refining the analog front end, developing
inter-card communication protocol; designing and testing FPGA designs to implement
the fast digital signal processing and the communication protocol; developing
dsp code to control the board and produce spectra, and designing and coding
appropriate PX drivers and interface softwareI. Applicable skills from the
above set might include 4, 5, 7, 10, 12 and 13.. Probably requires an advanced
degree in Physics or Electronic Engineering or equivalent experience.
- Position Sensitive Gamma-ray Spectroscopy - "GRETA" (0 openings)
This innovative work involves digitally capturing and processing the transient
induced charge signal in large arrays of cryogenically cooled Ge detectors
with multiple electrodes. Its goal is to develop both the hardware and algorithms
to determine both the location and deposited energy of gamma-ray interactions
in the detectors so that Compton multiple scattering events within array can
be captured and accurately reconstructed. Current work focuses on card and
system design to push interaction location computations as close to the detectors
in the data processing chain as possible. Applicable skills from the above
list include 4, 5, 7, 10 and 13. Experience in designing nuclear or particle
physics detector electronics would be highly valued.
- Position Sensitive Crossed Strip Detector Research - "Q-induced"
We are currently building a 1 cm thick HPGe detector with 1-2 mm wide stripes
from which we hope to attain 100 micron spatial resolution plus good energy
resolution by capturing and processing transient induced charge signals on
the neighboring or 'spectator' strips to the strips which actually collect
deposited charge. The research will involve developing this Patented
technology with the goal of imaging mouse hearts beating at 10 Hz. Work will
include cryostat design (mostly complete), developing and installing low noise
front end electronics, working with our DGF technology to capture induced
charge signals, developing algorithms to locate charge centroids, coding these
algorithms into onboard DSPs to attain position locations at high data rates,
and developing image display software. Applicable skills from above list are
1, 3, 5, 9, 10, and 13. Ideal candidates would have a Ph.D. in Physics (Semiconductor,
Radiation, X-ray, Nuclear, High energy, or Medical) with analog Electrical
Engineering experience, recent research experience and some grant writing
skills. Experience in designing nuclear or particle physics or similar detector
electronics would be highly valued. We will also consider hiring two candidates
with complimentary skill sets. We have funding for about 1.5 years, during
which time we hope to generate additional successful proposals to continue
We are always interested in speaking
with candidates who meet the qualifications below.
We will consider people with Bachelor's, Master's,
Ph.D.'s or Post Doc's, with or without additional experience. If you
have skills in the areas mentioned below, please let us know you are
out there. Electrical engineers, engineering physicists, and experimental
physicists are often well prepared to tackle our problems and are particularly
encouraged to apply.
Candidates expertise should include, in no particular
- Analog electronics design for very low noise (1-20 MHz region).
- ASIC design, fabrication, and test, both Digital/Analog
- Detector development (solid state, scintillator+CCD, or related).
- Digital electronics design (gate arrays or Digital Signal Processing
- DSP processor code design and development. (Analog Devices AD2181
and/or SHARC preferred.)
- Graphical User Interface development, PC-based
- Interfacing data acquisition and detector electronics to computers.
- Production Engineering, PC board layout.
- Radiation physics, medical x-ray physics experience.
- Scientific Programming for non-trivial analysis or experimental
(C, Java, C++, LabView, X-windows).
- Synchrotron Experimental Experience: XAS preferred, X-ray diffraction
- Test/Measurement instrument design at module or system level.
- Writing: good scientific writing skills are quite important;
success with funded proposals a plus, of course.
- X-ray instrumentation design for commercial applications
X-ray Instrumentation Associates (XIA) is a small
high tech firm in the business of inventing, developing and marketing
advanced digital data acquisition and processing systems for x-ray and
gamma-ray detector applications in university research, national laboratories
and industry . While our traditional source of support was from Federal
Small Business Innovative Research (SBIR) grants, with minor support
from product sales, the company has recently reversed that ratio. We
currently manufacture and sell 9 instruments, in 4 product families,
at prices ranging $500 to $15,000. We are located in Hayward, on the
east, easy commute, side of San Francisco Bay.
XIA offers a friendly yet highly stimulating technical
environment. Of our 14 current employees, 7 hold Ph.D.'s in Physics
or Materials Research, 1 has an MS in Electronic Engineering, and 4
have BA's in Physics. We regularly collaborate with US National Laboratories
and industrial partners, carrying out original, publishable scientific
research, as well as more conventional product-oriented engineering.
Our "corporate culture" is thus a challenging but rewarding mix of academic
intellectual rigor and nuts and bolts engineering. Successful candidates
will be intellectually stimulated both by working with top-level specialists,
inside the company and out, and by developing products that significantly
advance the state of the art.
As a company that is small but poised to grow,
we require people who possess multiple areas of expertise and acquire
new ones readily. For our research staff, we are therefore seeking individuals
who not only excel at innovative research but also enjoy the engineering
process required to reduce research to product practice. Since our customers
engage in advanced research and we must understand (and sometime collaborate
in) that research to meet their instrumentation needs. For our production
staff, we are seeking individuals with the experience and discipline
to create and operate the systems required to function efficiently as
we continue to grow. We offer flexible work schedules, an informal working
environment, and lots of interesting problems and opportunities for
career growth. We'll give you as much opportunity as you can handle.
We pay reasonable salaries and benefits and have an excellent retirement
package. We are in the process of incorporating and developing programs
for profit sharing and employee equity ownership.
Please follow the links for current
positions and read the instructions contained therein. To be considered
for general employment at XIA LLC, please send a CV and a short letter
summarising your interests and relevant background to:
Dr. William Warburton, President
31057 Genstar Rd.
Hayward CA 94544
Phone: (510) 401-5760
Fax: (510) 401-5761
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June 8, 2012
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