NIST Technicalendar March 20 to March 24, 2006 The NIST Technicalendar is issued each Friday. All items MUST be submitted electronically from this web page by 12:00 NOON each Wednesday unless otherwise stated in the NIST Technicalendar. The address for online weekly editions of the NIST Technicalendar and NIST Administrative Calendar is: http://www.nist.gov/tcal/.
Please evaluate the web Technicalendar using our 30 Second Evaluation

In this Issue: Meetings at NIST Meetings Elsewhere Announcements Talks by NIST Personnel NIST Web Site Announcements NIST Administrative Calendar (current)   NIST Vacancy Announcements (current)

Also available: Previous Issues of the Technicalendar Quick Technicalendar (current) Last week's Quick Technicalendar Last week's Technicalendar Detailed Search NIST Journal of Research (Current TOC) Change User Options

10:30 AM - Polymers Division Seminar
11:00 AM - Bulk and Interface States in Crystalline Organic Transistors
2:00 PM - Counting Single Electrons: A Real-Time Look at Stochastic Tunneling in Cooper-Pair Transistors
3:00 PM - Research Advisory Committee (RAC) All Staff Briefing

11:00 AM - The triple axis spectrometer at the new research reactor OPAL in Australia

No Scheduled Events

10:30 AM - A High Resolution Ultrasonic Thermometer for Radiation Dosimetry

No Scheduled Events

3/20 -- MONDAY

10:30 AM - POLYMERS DIVISION SEMINAR: Polymers Division Seminar
Neal Scruggs , California Institute of Technology.
224 Bldg, Rm. A312. (NIST Contact: Kalman Migler, 301-975-4876, kmigler@nist.gov)

11:00 AM - SEMICONDUCTOR ELECTRONICS DIVISION SEMINAR: Bulk and Interface States in Crystalline Organic Transistors
One of the main challenges for widespread applications of organic conductors in devices is to increase their electronic mobility. For this purpose ordered single crystals are being intensely studied. Good advice performance requires both removal of the impuirty molecules from the bulk and the manipulation of interface states. We show how crystal growth affects the surface properties and in turn determines the performance of FET devices. We develop a reliable method for fabricating FETs on organic single crystals. The method involves careful control of the semiconductor/gate interface.
Oana Jurchescu , University of Groningen.
225 Bldg, Rm. A362. (NIST Contact: David Gundlach, 301-975-2048, david.gundlach@nist.gov)

2:00 PM - QUANTUM ELECTRICAL METROLOGY DIVISION SEMINAR: Counting Single Electrons: A Real-Time Look at Stochastic Tunneling in Cooper-Pair Transistors
We have implemented a fast and sensitive electrometer, based on the measurement of the complex (Josephson) impedance of a Cooper-pair transistor. With this measurement technique the charge read-out is accomplished enitrely on the supercurrent branch, allowing us to look in real-time on quasiparticle tunneling in the transistor. These experiments, which I will describe, have raised several interesting questions: How should we model the impedance of a Josephson junction in the presence of ac drive and phase fluctuations? How does the finite bandwidth of the experiment modify the statistics of the process we are trying to observe? I will address these questions, and will further present data from our measurements of quasiparticle tunneling rates in single and multi- transistor circuits.
Ofer Naaman , NIST, Boulder, CO.
Metrology Building, Room B321. (NIST Contact: Neil Zimmerman, 301-975-5887, neil.zimmerman@nist.gov)

3:00 PM - OFFICE OF THE DIRECTOR, NIST SEMINAR: Research Advisory Committee (RAC) All Staff Briefing
The Research Advisory Committee (RAC) seeks input from NIST scientists related to scientific issues, concerns or opportunities. Annually a report and is prepared for the director with specific recommendations for improving the research atmosphere at NIST. This year the RAC will present all staff briefings for staff in Boulder and Gaithersburg. The briefings will be March 16th at 10am in the Auditorium for Boulder and March 20th at 3pm in the Green Auditorium for Gaithersburg. All staff are invited to participate. For more information please see http://www-i.nist.gov/director/rac/reports.htm.
Research Advisory , Committee.
Administration Bldg, Green Auditorium. (NIST Contact: Gary Anderson, 301-975-5238, gary.anderson@nist.gov)


3/21 -- TUESDAY

11:00 AM - NIST CENTER FOR NEUTRON RESEARCH SEMINAR: The triple axis spectrometer at the new research reactor OPAL in Australia
A triple-axis spectrometer (TAS) is projected to be a part of the suite of eight new neutron scattering instruments at the reactor OPAL at ANSTO (Sydney, Australia). The TAS will be based on a thermal beam at the reactor face. Main features of the instrument are: compact shielding, variable incident neutron energy, double focusing monochromator and analyser, polarisation-analysis mode. Commissioning of the TAS TAIPAN is scheduled by the end of 2006.
Sergey Danilkin , ANSTO (Australia).
AML Building 215, Room C103-C106. (NIST Contact: John Copley, 301-975-5133, john.copley@nist.gov)


3/22 -- WEDNESDAY

No Scheduled Events

3/23 -- THURSDAY

10:30 AM - PHYSICS LABORATORY SEMINAR: A High Resolution Ultrasonic Thermometer for Radiation Dosimetry
A new measurement technology has been initiated for the assessment of absorbed dose in water associated with radiation therapy. The device under development has the potential to provide on-site direct determination of dose and dose distribution in phantoms for treatment planning at clinical facilities. Currently, the clinical standards for photon beams are ionization chambers whose calibration is traceable to the NIST water calorimeter, in which the temperature rise due to radiation heating is directly measured with thermistors and is converted to dose. In the current effort we developed a non-contact method for measuring the small temperature rise in water without placing any sensors directly in the water. This eliminates thermal losses or excess heat due to radiation absorption by the sensor body and housing. The system includes a thermally insulated water tank, an ultrasonic transducer, and a Pulsed Phase-Locked Loop connected to a PC. The system routinely detects less than 10 micro Kelvin temperature changes in the water at room temperature. Data will be presented for a series of tests conducted using pulsed light incident through a small slit into a thermally isolated chamber containing the ultrasonic measurement system. Light pulses of controlled duration caused small changes in water temperature in the absorbed optical path simulating equivalent radiation treatment doses. Preliminary data illustrating system's sensitivity to radiation heating from the Co-60 source will be shown as well. Multiple ultrasonic beams can be used for both temporal and spatial temperature discrimination and potentially for high-resolution profiling of the dose volume distribution from external beams or radioactive seeds.
Eugene Malyarenko , Luna Innovations, Inc, Hampton, VA.
Radiation Physics Building, Room C301. (NIST Contact: Heather Chen-Mayer, 301-975-5595, heather.chen-mayer@nist.gov)


3/24 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

3/31/06 10:30 AM - NIST COLLOQUIUM SERIES : Baked Alaska: Changing Climate - Changing Landscapes
Alaska’s landscapes are among the most dynamic on Earth! They change rapidly in response to active physical processes such as glaciation, tectonics, seismicity, sedimentation, isostatic rebound; and sea level change. Alaskan landscapes, especially their glacier cover, are also very sensitive indicators of climate change. Historical photographs of landscape features, some made as early as the mid-l880s, are being used along with aerial photography, satellite imagery, and field observations in an integrated effort to characterize the impact of changing climate on landscape evolution and glacier change throughout Alaska. This presentation summarizes the post-Little Ice Age behavior of Alaskan glaciers, especially focusing on the continuing changes occurring within Glacier Bay National Park.
Bruce Molnia , Glacial Geologist, U.S. Geological Survey.
Administration Bldg, Green Auditorium. (NIST Contact: Kum Ham, 301-975-4203, kham@nist.gov)
Special Assistance Available

---

MEETINGS ELSEWHERE


3/20 -- MONDAY

11:00 AM - CARNEGIE INSTITUTION OF WASHINGTON/GEOPHYSICAL LAB. SEMINAR: ISOTOPE FRACTIONATIONS IN THE GLOBAL OXYGEN CYCLE
B. Luz , Hebrew Univ. of Jerusalem.
Bldg, Rm. .
Abelson Bldg., GL-DTM Grounds, Carnegie Institution of Washington, DC. (NIST Contact: S. Scmidt, 202-478-8900, schmidt@gl.ciw.edu)



3/21 -- TUESDAY

No Scheduled Events

3/22 -- WEDNESDAY

No Scheduled Events

3/23 -- THURSDAY

No Scheduled Events

3/24 -- FRIDAY

No Scheduled Events

ADVANCE NOTICE

No Scheduled Events

---

TALKS BY NIST PERSONNEL

CLARK, C. : TELLING TIME WITH ATOMS, ON LAND, SEA AND IN THE AIR.
Physics Colloquium, Georgia Southern University, Statesboro, GA, 3/9.

FORNEY, G. : SCIENTIFIC VISUALIZATION OF FIRE AND SMOKE.
Mathematics & Computer Sci. Dept., Mount St. Mary's University, Emmitsburg, MD, 3/15.

SEMANCIK, S. : USING TEMPERATURE-DEPENDENT PHENOMENA AT OXIDE SURFACES FOR SPECIES RECOGNITION IN CHEMICAL SENSING.
Conference/Meeting, Baltimore Convention Center Baltimore, MD, 3/15.

HONG, J. : VESICLE-TEMPLATED SUPRAMOLECULAR ASSEMBLY OF ALGINATE NANOGELS.
American Physical Society Annual March Meeting, Baltimore Convention Center Baltimore, MD , 3/16.

DUTTA ROY, T. : EXPRESSION OF OSTEOBLAST ADHESION PROTEINS ON 3D RAPID PROTOTYPED SCAFFOLDS.
Orthopaedic Research Society, Chicago, IL, 3/19.

HARMAN, G. : THE DIELECTRIC MATERIALS AND THE PROCESSES NECESSARY TO INTERCONNECT CU-LOW-K CHIPS.
International Microelectronics & Packaging Society Conf., IMAPS, Scottsdale, AZ, 3/21.

TAN, J. : SPECTROSCOPY OF HIGHLY CHARGED IONS AT THE NIST EBIT FACILITY.
2nd International Conference on Current Developments in Atomic, Molecular, and Optical Physics, Delhi University, New Delhi, India, 3/21.

FASOLKA, M. : POLYMER RESEARCH AT THE NIST COMBINATORIAL METHODS CENTER.
Univ. of Richmond, Richmond, VA, 3/22.

AMIS, E. : HIGH THROUGHPUT APPROACHES TO ANALYSIS OF COMPLEX MIXTURES.
American Chemical Society, Atlanta, GA, 3/24.

ANTONUCCI, J. : POLYMERIZATION SHRINIKAGE AND STRESS DEVELOPMENT IN BIOACTIVE URETHANE ACRYLIC COMPOSITES.
American Chemical Society, Atlanta, GA, 3/25.

CICERONE, M. : USING GLASSY DYNAMICS TO EVALUATE DRIED FORMULATIONS.
Formulation and Forced Degradation Strategies for Biopharmaceuticals, San Francisco, CA, 3/26.

BENKOSKI, J. : COMPETITION OF FORCES DRIVING ASSEMBLY IN NANOSCALE BUILDING BLOCKS.
American Chemical Society Meeting, Atlanta, GA, 3/26.

HIGHT WALKER, A. : CALCIUM-PROBE DYNAMICS BY FCS.
RSC Conferences , Royal Society of Chemistry, Thomas Graham House, Science Park, Milton Road, Cambridge CB4 0WF, UK , 3/26.

---

ANNOUNCEMENTS

VISITOR REGISTRATION FOR NIST EVENTS
Because of heightened security at the NIST Gaithersburg site, members of the public who wish to attend meetings, seminars, lectures, etc. must first register in advance. For more information please call or e-mail the "NIST Contact" for the particular event you would like to attend.
NIST Contact: . ., ., .

MEMS ALLIANCE MICRO NANO TECHNOLOGY SYMPOSIUM
The Washington Area MEMS Alliance is hosting a 1-day symposium on Micro and Nano Technologies (MNT) for Biology and Medicine. Speakers include Harold Craighead (Cornell), Mauro Ferrari (Ohio State), Javier Atencia (NIST), and Gary Rubloff (UMD). This meeting will focus on methods for manipulation and measurement of cells and biomolecules using MNT. It is also an excellent venue to network with leaders in MNT in the Washington Metropolitan area.
NIST Contact: Michael Gaitan, 301-975-2070, gaitan@nist.gov

---

NIST WEB SITE ANNOUNCEMENTS

JOURNAL IMPACT FACTORS AVAILABLE ON THE NIST VIRTUAL LIBRARY
The Journal Citation Reports, which provide Impact Factors for journals, is now available online through the NIST Virtual Library. Impact Factors measure the average number of citations a paper will receive if published in a specific journal title. An Impact Factor is commonly used as a measure of the relative prestige of a journal within its field. Use the Impact Factor to quantify the value of your published work, or to determine the most effective journal in which to publish. Contact the Research Library (x3051, library@nist.gov) for more information on the Journal Citation Reports and Impact Factors.
NIST Contact: Keith Martin, 301-975-2789, kmartin@nist.gov

---

For more information, contact Ms. Sharon Mingo, Editor, Stop 2500, National Institute of Standards and Technology, Gaithersburg MD 20899-2500; Telephone: 301-975-TCAL (3570); Fax: 301-926-4431; or Email: tcal@nist.gov.

All lectures and meetings are open unless otherwise stated.

---

NVL Webmaster