Notes
Slide Show
Outline
1
Latest Developments in Portable XRF Technology
  • ILAP 2005
  • Jim Pasmore
2
Portable EDXRF Testing Applications
3
Handheld EDXRF Analyzer
4
 
5
Software and Hardware Advancements
  • Alloy Mode
    • Averaging feature
      • All modes
      • Backwards & Forwards

  • All Modes
    • Hardware and software changes:
      • New CPU board → Faster, more memory
      • Features:
        • More flexible customizations
        • Bluetooth module – master / slave
        • Windows-style GUI
        • Improved Fundamental Parameters
          • K, L, & M, plus 3 consecutive element solution

6
New “S” (SuperRes) Detector for Alloy
  • 6 mm2 Amptek Si-PIN


  • Improved Resolution
    •  188 eV resolution at Mn line

  • Improved count throughput
    • Larger area coupled with better electronics > higher count rates
      • Well in excess of 20,000 cps
7
S Detector
8
S Detector Target Applications
  • Difficult Alloy Separations
    • Examples: CP Mo Vs TZM, Pure W Vs thoriated/lanthanated W
  • Tramp Cu in Steel
      • Cu can present severe mechanical deficiencies in steels
      • Practical action level: 0.1% Cu
  • Flow Accelerated Corrosion (FAC) prevention
      • FAC of C steels appreciably slowed by presence of low levels of Cr
      • Minimum Cr: 0.05%
  • Chromate coatings
    • Estimated LODs of < 100 angstroms
      • Note: It is commonly accepted that most XRF instruments will not detect Cr in conversion coatings unless they are at least a few thousand angstroms in thickness

9
S Detector + Filters: LOD’s, Ferrous Base
10
Thin Window, Big Area Detector
  • Primary target: Environmental and Mineral Exploration


  • Big: 13 mm2 crystal
    • 1 mil thin Be window
      • New welding technique
    • Better resolution:
      • New 13mm2: 210eV
        • Current BASP: 260eV
    • Light Element Capabilities:
      • P, S, Cl, Ca, etc
    • New Applications
      • e.g. Forensics
11
Thin Window, Big Area Detector
Spectral Overlay
12
High Temp Accessory Developments
13
New Test Stand
14
New Helium Purge
  • Filter configuration
    •  Filter 1 (Al, Fe Mo) –35kV output
    •  Filter 2 (1 mil Kapton) –6kV output: (for regions 3kV and lower)
      • Cl and lower E peaks (keV):`




    • NOTE:


    • Deconvolution: Sb(Ca), Sn(K), Ag(K), Bi(S), Mo(S), Pb(S), Nb(P), Zr(P)
      • Subtracted: W, Ta, Hf
15
Helium Purge: Consumables
16
Helium Purge: Aluminum Alloys
17
Helium Purge: Aluminum Alloys
18
Helium Purge: Al in Ti Calibration Accuracy
19
Helium Purge: Al in Ni Spectra
20
Helium Purge: Al/Si Bronze Calibration Accuracy
21
RoHS and WEEE Applications
  • RoHS
  • European Parliament and Council Directive 2002/95/EC: Restriction of the use of certain Hazardous Substances in electrical and electronic equipment
    • July 1st, 2006
    • Maximum levels in consumer products
      • Cadmium (Cd) 0.01%
      • Mercury (Hg) 0.1%
      • Lead (Pb) 0.1%
      • Hexavalent chromium (Cr(VI)) 0.1%
      • Polybrominated Biphenyls (PBB) 0.1%
      • Polybrominated Diphenyls (PBDE) 0.1%


    • WEEE
  • European Parliament and Council Directive 2002/96/EC on Waste Electrical and Electronic Equipment ()
    • Responsible recycling of electronic equipment
      • August 2005

22
Elements of Interest in RoHS/WEEE Application
23
Advantages of PXRF for RoHS
  • Effective tool for RoHS/WEEE compliance
    • Quantifies ppm levels: Pb, Hg, Cr, Cd, Br, Sb
    • Applicable throughout supply chain

  • Guided decision making
    •  Non-Compliant, Compliant, Inconclusive

  • Rapid, high-throughput testing
    • at point of manufacture
    • In-situ, real-time results


24
Latest RoHS Hardware and Software
  • Improved sensitivity for rapid in-situ testing


  • Latest software handles wide range of sample types with minimum operator input
    • PE, PVC, alloys, solders, packaging materials

  • Latest software handles odd shapes/sizes of sample
    •  wires, cables, etc.

  • Ideal application: Where high volume or rapid response is critical


25
New Matrix Evaluation Software
  • Presence of Chlorine in PVCs modifies x-ray properties of material
    • Plastics” calibration is different for either:
      • PVC-based  (PVC)
      • Non PVC-based (ABS, PTFE, HDPE, LDPE, PET, PS)
  • New PVC vs non-PVC auto-determination
    • By voltage switching: 40kV (new capability) to 25 kV, and back to 40 in first few seconds


26
Latest Performance:  Analysis of Solders
27
New Pass Fail Thresholds for RoHS
  • An asterisk (e.g. Cd*) indicates element concentration minus uncertainty is higher than the Fail limit.
  • A question mark (e.g. Cd?) means element concentration is inconclusive, i.e. in between Pass/Fail limits
  • An element with neither asterisk or question mark (e.g. Cd) means concentration of element plus uncertainty is lower than Pass limit


28
 Elements in Plastics, Latest LOD’s
29
Proposed RoHS Test Procedure
30
Many New NITON Support Documents

  • AGEC-2005 Paper by Stan Piorek
  • GPEC-2004 Paper by Stan Piorek
  • White Paper by Stan Piorek
  • RoHS/WEEE Overview by Jim Pasmore
  • On-Site Elemental Screening of Plastics NITON Application Bulletin
  • Saving the Risk of Tin Whiskers NITON Application Bulletin
  • On-Site Lead Screening of Electronic Components  NITON Application Bulletin
  • XLt 794 Standard Operating Procedure NITON SOP
  • XLt 797Z Standard Operating Procedure NITON SOP


31
Selected U.S. RoHS/WEEE Customers
  • Benchmark Electronics
  • APC (American Power Conversions)
  • Tyco Electronics
  • Coherent (laser component manufacturer)
  • Vishay Electronics
  • Brady Corp. (adding machines/portable printers/scanners)
  • Bose (speakers/radios)
  • Lifetime Hoan (Kitchen Aid)


  • Note: Worldwide NITON has installed several hundred analyzers for the WEEE/RoHS application
    • The preponderance are in China and Japan


32
R & D 100 Awards
  • 1995: Niton wins R&D 100 AWARD  for XL-309 Lead Analyzer


  • 2003: Niton wins second R&D 100 AWARD  for XLi Infiniton & XLt Analyzers


33
IDEA AWARDS Gold 2005
34
And now ….
  • … A brief demonstration