Product description, technical parameters and configuration

WDX-4000 is the commercial order Shi Bo of Jiangsu Tian Rui instrument Limited by Share Ltd, based on the research and development of multi-year simultaneous wavelength dispersive X ray fluorescence spectrometer, and under the support of the national major scientific instrument and equipment development (project number: 2011YQ170065) fund, and the unique scientific and technological innovation and invention. Long dispersive X ray fluorescence spectrometer. WDX-4000 has passed the test of the JJG 810-1993 wavelength dispersive X ray fluorescence spectrometer verification regulation, which can be used to detect elements from Be-4 to U-92 on the periodic table of elements, and can be applied to the fields of geology, cement, steel and environmental protection. WDX-4000 uses a large number of general-purpose design, which can provide customers with the most economical and convenient maintenance.

Performance characteristics:

Design of an innovative goniometer

The patented innovative steel belt transmission system can provide stable, no return clearance rotary motion to ensure the highest accuracy angle positioning requirements.

Theta /2 theta is independent of two axes and forms a closed loop system with servo motor and circular grating.

The permanent magnet AC servo motor provides the highest speed and smooth motion in the industry.

The roundness repeatability of the circular grating can reach + 0.0002 degrees, and the accuracy is 0.0006 degrees.

Digital multichannel analyzer

12, the analog to digital conversion rate of 80M/s is the highest resolution sampling system in the industry, which ensures the integrity of signal acquisition.

Based on the high-speed FPGA framework and reliable digital signal processing algorithm, the 4096 channel analysis system is sufficient to filter the correct X ray signals from noise.

The large dynamic range measurement effectively reduces the detector gain regulation times.

X ray tube and high pressure

The standard 4kW power supply system supports high sensitivity trace detection and faster inspection speed.

The beryllium window thickness of 50um/75um ensures super high X - ray penetration rate, especially suitable for low energy X - ray penetration.

The voltage and current of high voltage can reach 60kV and 160mA. Users can set voltage and current parameters flexibly according to actual needs.

The dual channel water-cooling system maintains electrical conductivity below 1uS to maximize the optical tube working life.

A maximum of 10 crystals can be provided, which can provide specially optimized artificial multilayer films according to customer needs, so as to enhance the detection ability of light elements.

The thinnest 0.3um can be directly proportional to the window of the gas flow counter, which greatly improves the luminous flux of light elements.

Other：

The temperature control stability of the spectrum chamber is within + 0.05C

Automatic switching control is applied to crystals, collimators and filters.

Software

Complete and rich software functions

32 bit software system, excellent operability and human-machine interaction interface

The mature empirical coefficient method provides accurate and reliable test data with standard samples.

The basic parameter method can provide a variety of analytical means, and can carry out semi quantitative and quantitative analysis without standard samples.

The integrated SQLite database is used to preserve experimental data and facilitate data query and management.

Technical indicators

Sampling system

Sample form: solid

Sample size: maximum 51.5 mm x 40 mm

Sample weight: the heaviest 500g

Injection system: double injection system, dust filter and pre vacuum system. One sample is measured at the same time, another sample is evacuated without interference.

Automatic sampling machine: automatic manipulator sampling system, which can hold up to 168 samples.

Spin device: 3 kinds of spin speeds (low, medium, high)

X ray tube

Beryllium window: 50um/75um ultra thin beryllium window, to ensure high pass rate of X rays.

Anode target materials: rhodium target, copper target, molybdenum target, tungsten target, chromium target, platinum target, etc.

Working mode: keep the working status unchanged when sample is injected.

Water cooling system: dual water circulation system with conductivity below 1uS

High-voltage power supply

Output mode: 1kV and 1mA standard adjustment unit, through 12 bit DA fine adjustment.

Long time stability: 0.01%/8 hours

Temperature stability: 50 ppm/C

(20 ppm/C optional).

data

Power: 4kW

KV/mA range: voltage 20-60KV, current 10-140mA, maximum voltage 75kV, maximum current 160mA optional.

Goniometer

Working mode: innovative steel belt drive system, no friction, no backhaul gap, with circular grating feedback, theta /2 theta two axes independent movement.

Maximum angular velocity: 60002 theta /min

Angle measurement accuracy: 0.006 [1] [theta] / 2 theta

Angle measurement repeatability: 0.0002 [1] [theta] / 2 theta

Step angle: minimum 0.0001 degree, maximum 1 degree

Angle scan range: flow gas proportional counter: 12 degree to 150 degree @2 theta.

Scintillation counter: 0 to 120 degrees @2 theta

light path

Collimator mask: single face mask, (other sizes 27, 32 or 50mm optional)

Main collimator: maximum can be installed 3: 100150300550700 or 4000 um, optional.

Main filter: up to 4: Pb, Al, Cu and other elements.

Crystals: up to 10: LiF420, LiF220, LiF200, Ge111, PE002, InSb, TIAP, and various artificial multilayer crystals for light element measurements.

Detector: gas flow ratio counter (FPC), with 0.3um thick window film.

Scintillation counter (SC)

Vacuum degree in the light chamber: <15Pa

signal processing

Digital multichannel analyzer: 12 bits, 80M/s sampling speed, 4096 analysis capability, FPGA frame and reliable DSP algorithm for signal and noise separation.

Maximum count rate: flow rate counter: 2Mcps

Scintillation counter: 1.5Mcps

Pulse drift and gain correction: automatic

Time correction: automatic