Alpha Spectrometer APD8428

EPIC-APD8428 is a PIPS semiconductor detector Alpha spectrometer, supporting four Alpha spectra measurement simultaneously. It consists of vacuum measurement chamber, PIPS detector, preamplifier circuit board, high and low voltage power supply and single channel control board, high performance digital multi-channel board, vacuum sensor and vacuum solenoid valve. With spectrometer hardware control, spectrometer status information acquisition and display, spectrometer data readout and management functions.

Functional indicators

Plug-in combination design for quick removal and installation

Supports simultaneous measurement of four Alpha energy spectra, and the number of system channels can be freely configured

The system design consists of a high-resolution spectrometer and a mechanical vacuum control section

With spectrometer hardware control, spectrometer status information acquisition and display, spectrometer data readout and management functions

Preamplifier type: charge sensitive preamplifier

Communication interface: USB2.0 or RJ45

Power supply and interface: AC220V 50Hz

Performance parameters

（1）Detector indicators

Detector: PIPS detector

Energy range: 3-10 MeV

Energy resolution: ≤24 keV (450 mm², detector-to-source distance equals detector diameter)

Detector efficiency: ≥25% (450 mm²)

（2）Multi-channel technical indicators

Energy channel address: 256, 512, 1024, 2048, 4096, 8192 channel selectable

ADC parameter: 16 bit,80 MSPS

Linearity: Integral non-linearity ≤ 0.05%, differential non-linearity ≤ 1%

Multi-channel gain: 0.01-10 times adjustable

Bias adjustment: 0-200 V digital adjustable, maximum output current 1mA

Leakage current measurement range: 0-5000 nA

（3）Vacuum chamber index

Vacuum chamber design: low background integrated design

Maximum detector size: 1200 mm² and 3000 mm² are available

Maximum diameter of sample: 51 mm

Sample to detector distance: 1-45mm in 4 mm steps

Vacuum degree: 0-26.7 kPa, software can display

Background count rate: above 3 MeV, average count rate per hour ≤ 1

（4）Whole machine index

Operating voltage: DC24V

Communication interface: TTL or USB2.0 or Ethernet interface

Working temperature: -10 ℃~50 ℃

Relative humidity: 30%~80%, non-condensing