ARTICLES
OPTICS; ATOMS and MOLECULES; SPECTROSCOPY Performance of the advanced photon source 1-BM beamline optics J. C. Lang, G. Srajer, J. Wang, and P. L. Lee pp. 4457-4462
True near-field optical characters of a GaAlAs semiconductor laser diode Sy-Hann Chen, Din Ping Tsai, Yung-Fu Chen, and Pang-Ming Ong pp. 4463-4465
Low-cost device for ratiometric fluorescence measurements Yordan Kostov and Govind Rao pp. 4466-4470
Spectrophotometers intercomparison for spectrocolorimetric scale harmonization Olivério D. D. Soares and José L. C. Costa pp. 4471-4481
Electron trapping materials for use in a picosecond infrared streak camera Wenhui Fan, Xun Hou, Li Du, Lihong Niu, Wei Zhao, and Xiaoqiu Zhang pp. 4482-4486
Systematic and statistical errors in correlation estimators o btained from various digital correlators Z. Kojro, A. Riede, M. Schubert, and W. Grill pp. 4487-4496 A new high transmission infinite range mass selector for cluster and nanoparticle beams B. von Issendorff and R. E. Palmer pp. 4497-4501
CHARGED PARTICLE SOURCES, OPTICS and ACCELERATION Self-excitation and operational characteristics of the crossed-field secondary emission electron source Y. M. Saveliev, W. Sibbett, and D. M. Parkes pp. 4502-4514 Simultaneous energy distribution and ion fraction measurements using a linear time-of-flight analyzer with a floatable drift tube V. A. Morozov and F. W.Meyer pp. 4515-4522Construction of a variable-frequency radio-frequency quadrupole linac for the RIKEN heavy-ion linac O. Kamigaito, A. Goto, Y. Miyazawa, T. Chiba, M. Hemmi, M. Kase, S. Kohara, Y. Batygin, E. Ikezawa, T. Nakagawa, and Y. Yano pp. 4523-4531
Efficient, compact power supply for repetitively pulsed, "triggerless" cathodic arcs André Anders, Robert A. MacGill, and Thomas A. McVeigh pp. 4532-4535
Single-ion detection using nuclear track detector CR-39 plastic Ken-ichi Hara, Meishoku Koh, Takashi Matsukawa, Takashi Tanii, and Iwao Ohdomari pp. 4536-4538
NUCLEAR PHYSICS, FUSION and PLASMAS Photocathode source for studying two-dimensional fluid phenomena w ith magnetized electron columns D. Durkin and J. Fajans pp. 4539-4541
The drift source: A negative ion source module for direct current multiampere ion beams A. Simonin, G. Delogu, C. Desgranges, and M. Fumelli pp. 4542-4544
Nonstationary signal analysis of magnetic islands in plasmas E. D. Taylor, C. Cates, M. E. Mauel, D. A. Maurer, D. Nadle, G. A. Navratil, and M. Shilov pp. 4545-4551
Fast bolometric measurements on the TCV tokamak I. Furno, H. Weisen, J. Mlynar, R. A. Pitts, X. Llobet, Ph. Marmillod, and G. P. Pochon pp. 4552-4556
Setup for potential bias experiments on the Saha Institute of Nuclear Physics tokamak J. Ghosh, R. Pal, and P. K. Chattopadhyay pp. 4557-4561
BASIC PHENOMENA Superconducting magnetic shields for SQUID applications J. R. Claycomb and J. H. Miller, Jr. pp. 4562-4568
Selection criteria for microphones used in pulsed nonresonant gas-phase photoacoustics I. G. Calasso and M. W. Sigrist pp. 4569-4578
Direct scanning tunneling microscope detection of laser induced ultrasonic pulses with nanometer resolution J. Jersch, F. Demming, I. Fedotov, and K. Dickmann pp. 4579-4581
MICROSCOPY and IMAGING Operation of a separated-type x-ray interferometer for phase-contrast x-ray imaging Akio Yoneyama, Atsushi Momose, Eiichi Seya, Keiichi Hirano, T ohoru Takeda, and Yuji Itai pp. 4582-4586
Application to dielectric, metallic, and magnetic samples of a transmission mode scanning near field optical microscope with normal force distance regulation on bent optical fibers T. David, C. Chicanne, N. Richard, J. R. Krenn, F. Scheurer, K. Ounadjela, M.Hehn, Y. Lacroute, and J. P. Goudonnet pp. 4587-4594
Low temperature ultrahigh vacuum cross-sectional scanning tunneling microscope for luminescence measurements Yoonho Khang, Yeonjoon Park, Miquel Salmeron, and Eicke R. Weber pp. 4595-4599
Vibration compensation for high speed scanning tunneling microscopy D. Croft and S. Devasia pp. 4600-4605
CONDENSED MATTER; MATERIALS Improved laser-heated pedestal growth system for crystal growth in medium and high isostatic pressure environment D. Reyes Ardila, J. P. Andreeta, C. T. M.Ribeiro, and M. Siu Li pp. 4606-4608
The double-diamond anvil cell, the poor-man's megabar pressure cell Isaac F. Silvera pp. 4609-4611
Microindentation device for in situ study of pressure-induced phase transformations Yury Gogotsi, Thomas Miletich, Michael Gardner, and Michael Rosenberg pp. 4612-4617
High temperature ultrasonic sensor for the simultaneous measurement of viscosity and temperature of melts Krishnan Balasubramaniam, Vimal V. Shah, R. Daniel Costley, Gary Boudreaux, and Jagdish P. Singh pp. 4618-4623
A novel quartz dendritic growth chamber for low temperature microgravity experimentation Dean S. Schrage and Diane C. Malarik pp. 4624-4633
Thermal diffusivity measurement of silicon samples by a combined piezoelectric and pyroelectric method M. Aravind and P. C. W. Fung pp. 4634-4639
A superconducting quantum interference device magnetometer system for quantitative analysis and imaging of hidden corrosion activity in aircraft aluminum structures A. Abedi, J. J. Fellenstein, A. J. Lucas, and J.P. Wikswo, Jr. pp. 4640-4651
Laser-induced rotation of a levitated sample in vacuum Won-Kyu Rhim and Paul-François Paradis pp. 4652-4655
CHEMISTRY High resolution surface plasmon resonance spectroscopy N. J. Tao, S. Boussaad, W. L. Huang, R. A. Arechabaleta, and J. D'Agnese pp. 4656-4660A high pressure fiber-optic reactor with charge-coupled device array ultraviolet-visible spectrometer for monitoring chemical processes in supercritical fluids Fred Hunt, Hiroyuki Ohde, and C.M. Wai pp. 4661-4667
The use of a special work station for in situ measurements of highly reactive electrochemical systems by atomic force and scanning tunneling microscopes Yair Cohen and Doron Aurbach pp. 4668-4675
A versatile computer-controlled pulsed nuclear quadrupole resonance spectrometer Gregory Fisher, Ernesto MacNamara, Robert E. Santini, and Daniel Raftery pp. 4676-4681
BIOLOGY and MEDICINE Fluorescence intensity and lifetime measurement of free and particle-bound fluorophore in a sample stream by phase-sensitive flow cytometry John A. Steinkamp and Jan F. Keij pp. 4682-4688
Instrumentation for real-time fluorescence lifetime imaging in endoscopy Jérôme Mizeret, Thomas Stepinac, Marc Hansroul, André Studzinski, Hubert van den Bergh, and Georges Wagnières pp. 4689-4701
A vector fetal magnetocardiogram system with high sensitivity Akihiko Kandori, Tsuyoshi Miyashita, Keiji Tsukada, Hitoshi Horigome, Mitsuhiro Asaka, Sadahiko Shigemitsu, Miho Takahashi, Yasushi Terada, Toshio Mitsui, and Yoshihide Chiba pp. 4702-4705
Automatic coupling control system for radio frequency in vivo electron paramagnetic resonance based on a piezoelectric controlled capacitor Stephen McCallum and Frank Resmer pp. 4706-4710
GRAVITY; GEOPHYSICS; ASTRONOMY and ASTROPHYSICS Remote query pressure measurement using magnetoelastic sensors C. A. Grimes, P. G. Stoyanov, D. Kouzoudis, and K. G. Ong pp. 4711-4714
ELECTRONICS; ELECTROMAGNETIC TECHNOLOGY; MICROWAVES Noise investigation of a high precision digital multimeter model HP3457A or HP3458A for microvolt level dc voltage measurements Ryuzo Ueda, Hiroaki Takajo, and Kazunori Kazihara pp. 4715-4726
GENERAL INSTRUMENTS Improving the efficiency of a jet pump using an elliptical nozzle D. W. Guillaume and T. A. Judge pp. 4727-4729
NOTES
Quick measurement of nuclear magnetic resonance coil sensitivity with a single-loop probe Jean-Christophe Ginefri, Emmanuel Durand, and Luc Darrasse pp. 4730-4731Computer-controlled Teflon flow control valve R. S. Gao, R. J. McLaughlin, M. E. Schein, J. A. Neuman, S. J. Ciciora, J. C. Holecek, and D. W. Fahey pp. 4732-4733
LETTERS
Comment on "Noise averaging and measurement resolution" [Rev. Sci. Instrum. 70, 2038–2040 (1999)] A. W. Sloman p. 4734Reply to "Comment on `Noise averaging and measurement resolution' " [Rev. Sci. Instrum. 70, 2038–2040 (1999)] James Potzick p. 4735
Comment on "Direct measurement of refractive-index dispersion using a time-delayed technique" [Rev. Sci. Instrum. 69, 1472–1475 (1998)] H. Delbarre, C. Przygodzki, and D. Boucher p. 4736
PERSPECTIVES
The discovery of new transuranic elements and the role of the electron cyclotron resonance ion sources R. Geller pp. 4737-4738