Commander, U.S. Army Missile Command, RDEC Procurement Office, Redstone Arsenal, AL 35898-5275

70 -- SCANNING ELECTRONIC MICROSCOPE (1) EA SOL DAAH03-96-R-0023 DUE 083096 POC (RDPC) Natalynn Weddle, Contract Specialist, AMSMI-AC-CRBA, (205) 876- 4900, or Harold Smith, Contracting Officer. Synopsis No. R075-96. The scanning electron microscope shall be equivalent to a LEO Model S430i Core Integrated Instrument with the following minimum capabilities; (a) Electron optical column and electron gun with pre-aligned tungsten filament. Resolution 4 nm. Three pre-aligned electron optical lenses. Three final apertures. Optibeam control of lenses. Conical final lens. EHT supply, 1.0kV to 30kV. Adjustable in 10V steps between 1.0kV and 30kV. Automatic bias control with acceleration voltage compensation. Magnification range of 15x to 300,000x. Operator pre-set magnification function. Manual gun alignment. (b) Specimen Chamber/Stage and Secondary Electron Detector: Chamber Dimensions: 265mm wide x 190mm high x 300mm deep. Accessory Ports: Eight accessory ports. Specimen Stage Type: Motorized 5 axis Cartesian. Mounting: Hinged door. Movements: X 100mm (+/- 50mm); Y 125mm (+75mm, -50mm); Z 35mm continuous; Tilt 0 degrees to 90 degrees tilting to rear of the chamber. Rotation: 360 degrees. Repeatability: 5um. Maximum Specimen Weight: Up to 0.5kg. Tough Alarm: Audible warning with on-screen message. Specimen Mounts: Single and eight position holders for 13mm diameter stubs. Single holder for 32mm diameter stubs. A 100mm diameter mounting plate with drilled and tapped (M4) holes. Secondary Electron Detector: Detector Type: Phosphor scintillator with optically coupled photomultiplier. Collector Bias: Adjustable from -250V to +400V. (c) Vacuum system: Air-cooled 70L/sec turbomolecular pump. Direct drive rotary pump. Large desiccator. Penning gauge with vacuum readout. No water, compressed air or liquid nitrogen required. Rotary Pump: Two stage 12 cubic meter/hr. Includes oil mist filter. Turbomolecular Pump: 190 liters/sec air cooled. Control: Fully automatic. Gauging: Penning gauge fitted to the specimen chamber. Indication: Vacuum reading, vacuum ready and valve status are shown in the vacuum menu and optionally in the status menu. Ultimate Vacuum: The ultimate vacuum in the specimen chamber is better than 2 x 10 to the minus 6th power torr. Evacuation Time: Normally better than 3.5 minutes, dependent upon specimen outgassing and atmospheric humidity. (d) Mouse and Keyboard for system control Microsoft Windows control interface. Control of EHT, lens suplies, scanning conditions, imaging and image recording, EDX analysis using Oxford ISIS (or equivalent EDX). Enhanced depth of focus using special Optibeam mode. Automatic or manual control of a large number of functions including: auto gun run up, auto resolution, auto brightness, auto contrast, auto stigmator, auto focus and a single channel video system. (e) Digital image store and image processor design dedicated to the electron microscopy with: 1024 pixels x 768 lines. Frame averaging for up to 256 frames. Frame integration for up to 256 frames. Line averaging for up to 256 scans of each line. Line integration for up to 256 scans of each line. (f) Video display and Record system: 430mm (17 inch) super VGA flicker free color monitor. 16 scan speeds. User configurable status display menu for up to 27 parameters. Standard data zone includes magnification, working distance, scale bar, date, etc. Custom data zone. Vacuum status menu. Comprehensive image annotation facilities with definable fonts, colors etc. High resolution, Mitsubishi P78, video printer with parallel digital data transfer. Any screen image may be recorded including overlays. (g) Disk storage system: 1.44MBytes 3.5'' floppy disk drive. Instrument boots from integral 400MBytes hard disk. Storage of images on floppy disk or hard disk in TIFF format. Storage of EDX spectra and maps on floppy or hard disk. Operating conditions easily stored and file management through Windows V3.11. (h) Video facilities: Split screen display. Pseudo color displays from a palette of 16 million colors. Flexible grey band selection. Image post-processing. Image cut and paste. Grey level histogram display. Multiple point to point and line width measurement systems freely adjustable for orientation. Adjustable graticule overlay. Dynamic focus +80 degrees to -80 degrees. Scan rotation. Signal invert. (i) Complete integration of an energy dispersive x-ray (EDX) spectrometer (Oxford ISIS EDX system/software or equivalent) operating on scanning electron microscope PC (486DX2 - 66mhz or faster). Console extension for housing the EDX electronics. 16MByte of RAM on PC card. Image processor fitted with extended graphics card, giving 256 color display in the Windows plane. RS232 communication for instrument control. All interfacing is internal and all cables are included. (j) Instrument Maintenance Kit: Integrated Link ISIS microanalysis system Comprising: Microanalytical processor. High speed microcontroller with memory and associated circuitry for acquisition and processing of the X-ray signal. TRANSLINK pipelined communication system for high speed transfer of data to and from the system computer. Two RS232 serial ports or one RS232 serial port and one Laserbus port. Onboard diagnostics including test pulse generation and continuous monitoring of: - power supply; - ramp; - cabinet temperature. Eight EBU outputs. Linear power supply. (k) EDS detector electronics: Programmable detector high voltage bias supply. Time variant filter type with 6 software selectable time constants and energy ranges (2.5, 5, 10, 20, 40, 80 eV/channel). Computer controlled time variant filter pulse processor which has acquisition rates of greater than 30,000cps with no significant spectrum distortion and full automatic calibration al all process times. Live time correction. Three discriminators for full range pulse pile-up rejection down to Boron. Digital zero stabilization. Seccessive approximation ADC. Conversion time 5 microseconds. 4096 channel resolution with 32 bit data per channel. Liquid nitrogen (LN2) free 10mm to the 2nd power, 133ev SATW window with detection from boron to uranium. (l) System computer and Interfacing: Utilizes Stereoscan S430 PC. Central Processor Type: 486-DX2 (66MHz). RAM: 16 Megabytes. Comms Ports: Parallel: two Centronics for video printers etc., as standard. Hard Disk: 400 MByte Winchester (IDE) standard. Floppy Disk: 1.44 MByte drive. Backplane Type: Standard AT backplane. User Interface. Keyboard: IBM compatible type. Mouse: Serial mouse pointing device for instrument control. All interfacing is internal and all cables shall be included. Autocolumn RS232 control shall be included. (m) Software: MSDOS 6.2 and Windows 3.11. L240 Autocolumn for control and automation of column functions. EDX qualitative and quantitative elemental determination using manual or automatic peak identification routines. Onput to Stereoscan S430 screen for x-ray dotmaps and analogue linescans. LABBOOk data management software. EMSA, eXL, QX2000 and AN10000 spectrum conversion formats. TIFF image conversion format. User diagnostics. (n) Sample preparation equipment shall include the following: Hydraulic mounting press (Buehler Model Simplimet 2 or equivalent, 1.25 inch diameter mold assembly). Sample abrasive cutter (Buehler Model Samplmet 2 or equivalent, 115V/60Hz/1 phase). Grinder/Polisher table (Beuhler Tech-met or equivalent, one 8 inch wheel). Stereo-Zoom Microscope (30X minimum magnification) with photo capability and microscope stand (Fisher Scientific Model 31-26-40-08 or equivalent). (o) Warranty, Trainer and Spare Parts: Standard one year warranty and on-site training for two employees. All standard replacement parts such as o-rings, filaments, final apertures, accessory tools and operation manuals shall be included. Request solicitation in writing from Commander, U.S. Army Missile Command, ATTN: AMSMI-AC-MOD, Redstone Arsenal, AL 35898-5280. (0193)

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