A Polish SME has developed a computer-controlled Mössbauer/Gamma spectrometer flexible in design and operation has been fully developed and tested. Driving software and very sophisticated data processing software MOSGRAF operating under Microsoft Windows9x systems have been elaborated. The company is looking for a partner from the medicine or metrology branch for co-operation.

A complete spectrometer is designed as a set of modules fitting into the Euro-bin and communicating with the computer via the fast link. It has the following features:
1. Two multi-scalar data banks having up to 4096 channels with 32-bit capacity
2. Two amplitude analyser data banks having up to 4096 channels with 32-bit capacity
3. Built-in γ-ray spectrometer operating independently of the Mössbauer data accumulation in the following simultaneous modes: NORMAL, COINCIDENCE and ANTI-COINCIDENCE (up to 3840 useable channels in each mode)
4. The γ-ray spectrometer's Gauss five-pole filter provides four, software-selectable (0.5 to 5 microseconds) shaping times constants
5. Downloadable transducer reference function having 8192 points per full cycle with 12-bit resolution
6. Transducer repetition frequency variable from about 0.3 to about 90 Hz in small steps
7. Velocity window settable in small steps from about 0.5 to about 150 mm/s
8. Built-in laser based Michelson-Morley interferometer for precision velocity calibration
9. Precision transducer being able to cover velocity windows from about 0.5 to about 150 mm/s and equipped with the positioning sensor; a transducer has a hollow central tube allowing to work with the synchrotron radiation beams or to mount a movable corner-prism velocity calibrator just back to the source; the average source position could be set precisely
10. Two ready-to-use nuclear detector heads having software-controlled internal high voltage supplies, i.e., NaI(Tl) scintillation detector head and Kr-filled proportional detector head - both detectors having iron-free Be-windows
11. The Euro-bin back plane consists of: short lines for individual block-to-block connections, parallel and serial buses, power supplies and a few unused long lines so any new, specialized block may be easily inserted into one of three remaining slots.
Analogue signal can be fed from one of the nuclear heads or from the external source like the solid-state detector. Input circuit for the latter case is ready to accept signals from the optically coupled preamplifiers. Multi-scalar signal is fed internally to the bank #1, while the bank #2 could be used to either accumulate laser calibration data or external pulses. All functions are controlled via developed software. Optical calibration system has advanced design allowing to calibrate low and high velocities with high accuracy. It is insensitive to the acoustical noise.

Innovative Aspects:
The system is easily expandable and allows for straightforward data processing. One can accumulate Mössbauer spectra up to 2047 points per spectrum with highly linear velocity scale. Unusual reference functions are easily generated and tested for the harmonics content. Velocity calibration is an easy and straightforward task due to the intrinsic optical calibration system. Round-corner reference functions can be optimised to assure the best performance of the transducer. All four spectra (two Mössbauer and Gamma coincidence/anticoincidence) are accumulated simultaneously and independently.

Main Advantages:
Flexibility of design and operation; remote control and ability to store and recall parameters used in previous runs makes the spectrometer ideal for routine industrial applications. On the other hand, the spectrometer meets all the quality standards required for advanced basic research like, e.g. Mössbauer holography or synchrotron radiation nuclear interferometry. The transducer has a hollow central tube.

• Measurement Tools

• Chemical industry
• Heavy metals industry, smelting
• Materials technology
• Measurement methods
• Pharmaceutical/Comestics
• Waste management
• BIOLOGICAL SCIENCES
• Environment protection
• OTHERS (Specify in Market Application Highlights)

• Other Medical/Health Related

• Commercial Agreement with Technical Assistance
• Financial resources