POSITIONS AVAILABLE X-RAY DETECTOR RESEARCH/DEVELOPMENT THE COMPANY: X-ray Instrumentation Associates (XIA) is a tiny company located close to Stanford University in Silicon Valley. Our present research and product development efforts lie primarily in the areas of array detectors and electronics for synchrotron radiation experimentation and specialized detectors for medical imaging or nuclear medicine. While our major support to date has been from SBIR grants, with minor support from product sales, the company goal is to reverse that ratio in the near future. 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. Because we are a tiny company, we require people who possess multiple areas of expertise and acquire new ones readily. Since our customers engage in advanced research and we must understand (and sometime collaborate in) that research to meet their detector needs, our "corporate culture" is a challenging but rewarding mix of academic intellectual rigor and nuts and bolts engineering. Because of the fluctuations inherent in grant supported research, we take an entrepreneurial approach and pay modest salaries, which are easier to guarantee, and compensate with an excellent retirement package and a program to share product profits with the products' developers. WHAT WE'RE LOOKING FOR: Some of the areas of expertise we could presently use include, in no particular order: 1) Detector physics (solid state, gas microstrip, or related). 2) Digital electronics design (at the gate array level a plus). 3) Computer-detector electronics interfacing. 4) Analog design for low noise (1-20 MHz region). 5) Synchrotron Experimental Experience: X-ray absorption spectroscopy preferred, X-ray diffraction OK. 6) Scientific Programming for non-trivial analysis or experimental control (C better, FORTRAN OK). 7) Good scientific writing skills are quite important; success with funded proposals a plus, of course. 8) Test/Measurement instrument design at module or system level. 9) Digital/Analog ASIC design, fab, and test. 10) Experimental surface science, esp. x-ray source spectroscopies. 11) Miscellaneous: Labview programming, other analog/digital experience, SEM/TEM exposure, PC board layout. POSITIONS AVAILABLE: We currently have 2 funded and 1 high probability positions available, which are listed below. We have a variety of other proposals out and hope to need more help soon. We will consider people with Bachelor's, Master's, Ph.D.'s and Post Doc's, with or without additional experience and are an equal opportunity employer. If you have skills in 3 or more of these areas, let us know you're out there. 1 st Position (Funded): Primary responsibility: to develop software interface between XIA multichannel detector processing module and currently developed EXAFS software analysis package. The module is nearly a product and needs control software to set its parameters, collect multiple full spectra per data point, perform on-the-fly deconvolutions to extract fluorescent intensities, and pass the data to the analysis package. Secondary responsibilities: to depend upon person's skill set. Primary experience preferred in areas 5,6 & 7 above, but other combinations will be considered. Probably required Masters or higher. 2 nd Position (Funded): Primary responsibility: Work in small group developing high speed, high energy resolution x-ray detector array. Will require developing analog and digital support electronics for ASIC front end, devising and carrying out (automating?) test procedures, constructing interface to control computer. Secondary responsibility: Improving design and refining processing algorithms for x-ray spectrometer electronics based on digital signal processing techniques. Applicable skill sets might be (2,3,8 with some 7,5) or (4,1,6 with some 7,8) or similar. Probably requires Ph.D. or higher. 3 rd Position (Very Highly Ranked Proposal): Developing portable system to calibrate mammography x-ray units. Responsibilities to include some fraction of the following: Developing source spectrum measurement procedures for use with room temperature detector; converting existing digital spectrometer to PC based unit; developing PC code routines to control PC based spectrometer, acquire and analyze data. Skill set might be (3,6,2 with some 7,8) or (1,2,5 with soem 6,3) or (8,7,6) etc., etc. This is a chance to do something which is extremely useful socially while having fun with PC based instrumentation. Upcoming Possibilities: 1) Work with diamond NEA surfaces in X-ray detectors. 2) Research techniques for high energy resolution, position sensitive room temperature x-ray detectors. REPLY TO: Send a CV and 3 references to: Dr. William K. Warburton, X-ray Instrumentation Associates, 2513 Charleston Road, STE 207, Mountain View, CA 94043-1607 Phone: (415) 903-9980; Fax: (415) 903-9887 e-mail: Warburton@ssrl01.slac.stanford.edu