Time of Flight Secondary Ion Mass Spectrometer

This ultrahigh vacuum surface analytical system is designed to examine surface structure, composition, and chemical state by means of secondary ion detection during ion sputtering. The instrument will be furnished with a C60 ion gun, a liquid metal ion gun with Bin+sources, and a Cs+/O2+ sputter ion gun with emission current stabilizers. The capabilities include surface spectroscopy with high sensitivity and mass resolution, surface imaging with high lateral resolution, depth profiling with high depth resolution, and 3-D analysis. The ability to provide cluster ions, such as Bin+ and C60+, will enable EMSL users to obtain substantial improvements in detection yields, especially in biological materials. The C60 ion gun can provide ultimate high mass sensitivity, superior imaging, and a powerful organic sputter depth profiling capability with C60+ or C602+ions.

This new instrumentation provides the user the flexibility to image with minimal shadowing on samples with high surface topography as well as the highest commercially available mass resolution performance. Low primary energy and low ion dose densities provide surface analysis without significantly altering of surface. The system is equipped with an introduction chamber and a glove box for sample transfer under controlled environment. In addition, EMSL staff are in the process of building a side chamber with limited processing capabilities and cryo-sample manipulation capability so that biological samples can be processed in the side chamber before the samples are transferred to the main system for SIMS analysis. This instrument will significantly improve EMSL's ability in areas such as microbial forensics, organic analysis, and biological imaging.

Physical Operating Criteria Primary Performance Parameters
Operating Vacuum Conditions ≤ 2x10-10 Torr
Ion Species, Energy Range
  • 1-10 KeV C60+
  • 1-20 KeV C602+
  • 10-25 KeV Bi+, Bi3+, Bi5+
  • 0.5 − 2KeV Cs+ and O2+
Spectrometer ToF mass spectrometer, 0-10,000 amu mass range
Capabilities
  • Surface spectroscopy (high sensitivity with mass resolution >10,000)
  • Surface imaging (lateral resolution ~ 100 nm)
  • Depth profiling (depth resolution ~ 1 nm) and 3D analysis
  • Isotope quantification
  • -150°C to 600°C in-situ cooling/heating
Specimen Exchange Capability
  • Sample introduction system
  • Future incorporation of EMSL transfer technology
  • Anerobic sample transfer
Data Acquisition/Analysis PC based Computer workstation interface

 

 

 

User Portal Name: Mass Spectrometer: Time of Flight Secondary Ion (ToF SIMS) - 2007
Instrument ID:
34078
Availability: 10 hours a day, 5 days a week

Custodians

Zihua Zhu (509) 371-6240 zihua.zhu@pnnl.gov

Publications

Protein markers for identification of Y. pestis and their variation related to culture
This paper investigated the effect of chromium underlayer on the structure, microstructure and composition of the nano-crystalline diamond films....
Surface Ni/Sb and Ni/Sb alloys were found to efficiently minimize the negative effects of sulfur on the performance of Ni/zirconia anode-supported...
We present data characterizing the performance of the _rst segmented, N- type Ge detector, isotopically enriched to 85% 76Ge. This detector, based on...
Slow heavy ions inevitably produce a significant concentration of defects and lattice disorder in solids during their slowing-down process via ion-...
Applying vacuum-based molecular probes of liquid surfaces would aid many environmental, biological, and industrial studies. However the high vapor...
Nanospray desorption electrospray ionization (nano-DESI) combined with tandem mass spectrometry (MS/MS), high-resolution mass analysis (m/m=17,500 at...
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) depth profiling of sucrose thin films were investigated using 10 keV C60+, 20 keV C602+, 30...
Precise materials integration in nanostructures is fundamental for future electronic and photonic devices. We demonstrate Si, Ge, and SiGe...
Organic semiconductors have the unique ability to conduct both ionic and electronic charge carriers in thin films, an emerging advantage in...
The performance of anode-supported and electrolyte-supported solid oxide fuel cells was investigated in synthetic coal gas containing 0 to 10 ppm...
A self-contained microfluidic-based device was designed and fabricated for in situ imaging of aqueous surfaces using vacuum techniques. The device...
Mass spectrometry imaging (MSI) has been extensively used for determining spatial distributions of molecules in biological samples, and there is...
The interaction of phosphorus in synthetic coal gas with the nickel-based anode of solid oxide fuel cells has been investigated. Tests with both...
Recent advances in nanostructured fuels and oxidizers may lead to high-performance energetic materials for propulsion, but these nanoparticulates...
Understanding molecular interaction pathways in complex biological systems constitutes a treasure trove of knowledge that might facilitate the...
Hafnium oxide (HfO₂) thin films have been made by radio-frequency (rf) magnetron-sputtering onto Si(100) substrates under varying growth...
The structural and electronic properties of CdSe quantum dots in toluene and drop-casted on Si wafer were investigated by in-situ micro X-ray...
Amelogenins are the dominant proteins present in ameloblasts during the early stages of enamel biomineralization, making up >90% of the matrix...
We report the first observations of aqueous surfaces by a time-of-flight secondary ion mass spectrometer (ToF-SIMS) via a self-contained microfluidic...
To gain insight into the Cr poisoning mechanism at the cathode side of solid oxide fuel cells (SOFCs) with stainless steel interconnects, we...
Effective control of diffused phosphorus profiles in crystalline silicon requires detailed understanding of the doping process. We develop a model...
The ohmic resistance of anode-supported solid oxide fuel cells having a manganese-based cathode was lowered when operated in synthetic coal gas...
Solid oxide fuel cells (SOFCs) are presently being developed for gasification integrated power plants that generate electricity from coal at 50+%...
The performance of anode-supported solid oxide fuel cells (SOFC) was evaluated in synthetic coal gas containing HCl in the temperature range 650 to...
Time-of-flight secondary ion mass spectrometry (ToF-SIMS) is a unique surface analysis technique because it can provide molecular recognition for...
Chromium-containing iron-based alloys Crofer22 APU and SS 441 and nickel-based alloy Inconel600, all commonly used in a solid oxide fuel cell (SOFC)...
Integrating the governing chemistry with the genomics and phenotypes of microbial colonies has been a "holy grail" in microbiology...
An automated platform has been developed for acquisition and visualization of mass spectrometry imaging (MSI) data using nanospray desorption...
Bottom-up nanostructure synthesis has played a pivotal role in the advancement of nanoscale science. This approach is typically less labor and energy...
Imaging mass spectrometry offers simultaneous detection of drugs, drug metabolites and endogenous substances in a single experiment. This is...
Ion soft landing (SL) enables highly selective modification of substrates for applications in materials science, nanotechnology and biology. Our...
In this study, we report new results of in situ study of 5 nm goat anti-mouse IgG gold nanoparticles in a novel portable vacuum compatible...
Abstract: Hydrogen is being considered as a next-generation clean burning fuel. However, hydrogen has well known materials issues, including...
Microorganisms release a diversity of organic compounds that couple interspecies metabolism, enable communication, or provide benefits to other...
Point-defect-mediated diffusion processes are investigated in strained SiGe alloys using kinetic lattice Monte Carlo *KLMC* simulation technique. The...
Atomic resolution Z-contrast images from a series of CeO2 [001] tilt grain boundaries at coincident site lattice (CSL) or near-CSL misorientations...
The interaction of antimony with the nickel-zirconia solid oxide fuel cell (SOFC) anode has been investigated. Tests with both anode-supported and...
Electron-beam-induced recrystallization of irradiation-induced amorphous Sr2Nd8(SiO4)6O2 is investigated in situ using transmission electron...
Amelogenin is the predominant matrix protein in developing dental enamel. Making extensive use of residue-specific 15N-labeled amino acids samples,...
Thin film samples of CeCl3, CeBr3, and combinatorial compositions along the CeCl3-CeBr3 join were produced using thermal evaporation, which is being...
Covalent immobilization of peptides on solid supports plays an important role in biochemistry with applications ranging from characterization of...
The amelogenin protein is involved in the formation of highly controlled and anisotropic hydroxyapatite crystals in tooth enamel. Amelogenin is...
The requirements of low cost and high-temperature corrosion resistance for bipolar interconnect plates in solid oxide fuel cell stacks have directed...
The α-helix – the common building block of the protein secondary structure - plays an important role in determining protein...
A new ion deposition apparatus was designed and constructed in our laboratory. Our research objectives were to investigate interactions of...
Thermally induced structural relaxation in amorphous silicon carbide (SiC) has been examined by means of in situ transmission electron microscopy (...
Single-crystal AlN films on SiC were irradiated at 145 K with 1.0 MeV Au+ ions to a wide range of ion fluences. The accumulation of disorder on both...
Single crystal <0001>-oriented 6H-SiC was irradiated with Au2+ ions to fluences of 0.032, 0.058 and 0.105 ions/nm2 at 140 K and was...
Aircraft propulsion applications require low-friction and wear resistant surfaces that operate under high contact loads in severe environments....
Using solution-state NMR spectroscopy, new insights into the early intermolecular interactions stabilizing amelogenin supramolecular assembly and the...
The kinetics of charge reduction and desorption of different species produced by soft-landing of mass-selected ions was studied using in situ...
The thermal evolution of the microstructure created by irradiation of a GaN single crystal with 2 MeV Au2+ ions at 150 K is characterized following...
Irradiation of 6H-SiC single crystals was performed using 4 MeV H+ ions at 340 and 210 K. The changes in lattice parameters in the basal plane and...
Fe-Al bilayer interfaces with and without interface stabilizing layers (Ti, V or Zr) were fabricated using dc magnetron sputtering. Intermixing...
Soft landing of mass-selected peptide ions onto reactive self-assembled monolayer surfaces (SAMs) was performed using a newly constructed ion...
Abstract. The interactions of proteins at surfaces are of great importance to biomineralizaton processes and to the development and function of...
This review is focused on what has been learned in recent research studies concerned with fundamental aspects of soft-landing and reactive landing of...
A simple strategy for covalently attaching Ta2O5 particles onto functionalized graphitic carbon supports has been developed to fabricate hybrid...
Irradiation with ions and electrons provides accelerated study of radiation damage in nuclear materials, such as those proposed for immobilization of...
A single-crystal 3C-SiC film on the Si/SiO2/Si (SIMOX) substrate was irradiated in different areas at 156 K with Au2+ ions to low fluences. The...
Irradiation effects on pre-amorphized Sr2Nd8(SiO4)6O2 have been investigated under 200 and 300 keV electron-beam irradiation at 130 and 480 K using...
Epitaxial films of Mn-doped ZnO were deposited by pulsed laser deposition on -Al2O3(0001) utilizing targets created from Mn-doped ZnO...
In order to become a practical technology, semiconductor spintronics requires the discovery and utilization of ferromagnetic semiconductors which...
Chromia-forming ferritic stainless steels are being considered for interconnects applications in planar solid oxide fuel cell (SOFC) stacks because...
A simple, direct synthesis of a mesoporous carbon containing pyridine rings is described. This synthesis utilizes the SiCl4 induced...
Damage accumulation on both the Sr and Ti sublattices in strontium titanate (SrTiO3) has been investigated under 1.0 MeV Au+ irradiation at 360 and...
The operation of solid oxide fuel cells (SOFC) was evaluated on simulated coal gas in the presence of several coal gas impurities that are expected...
Response of strontium titanate (SrTiO3) to ion and electron irradiation is studied at room temperature. For an accurate energy to depth conversion...
Implantation of 13C2+ ions was employed to produce a concentration profile in 6H-SiC at 140 K. In-situ study of 13C implanted species was performed...
Electron-beam induced effects in pre-amorphized Sr2Nd8(SiO4)6O2 is investigated in situ using transmission electron microscopy with 200 keV electrons...
Response of materials to single radiation events is fundamental to research and many technological applications that involve energetic particles. Ion...
Soft-landing of singly and doubly protonated peptide ions onto three self-assembled monolayer surfaces (SAMs) was performed using a novel ion...
Al/Fe and Fe/Al bilayer films with and without a Ti stabilizing interlayer at the interface have been grown on Si wafers using dc magnetron...
Charge reduction and desorption kinetics of ions and neutral molecules produced by soft-landing of mass-selected singly and doubly protonated...

Quick Specs

    • Ultrahigh vacuum
    • C60 ion gun
    • Liquid metal ion gun with Bin+ cluster sources
    • Cs+/O2+ sputter ion gun
    • 0-10,000 amu mass range
    • Mass resolution >10000
    • ~100 nm lateral resolution
    • ~ 1 nm depth resolution

Science Highlights

Posted: Tuesday, March 4, 2014 - 16:00
Structured microbial communities, or biofilms, have implications for basic energy, industrial and biogeochemical research, and scientists study them...
Posted: Sunday, January 19, 2014 - 16:00
A new imaging capability provides direct probing of the solid electrode-liquid electrolyte interface enables, for the first time, a way to...
Posted: Monday, January 6, 2014 - 16:00
The Science Scientists recently isolated and characterized oxidized and reduced forms of the protein DsrC, an important step toward understanding...
Posted: Tuesday, March 15, 2011 - 04:51
Once only possible with expensive liquids and large amounts of waste, scientists have used unique mass spectrometry capabilities at EMSL to create a...