SPEAR A CZT based, room-temperature, Single Point Extended Area Radiation detector used to measure x- and .. Product #: SPEAR


A CZT based, room-temperature, Single Point Extended Area Radiation detector used to measure x- and gamma-rays.

The SPEAR (Single Point Extended Area Radiation) detector is a complete probe, comprising a 5x5x5mm3 CZT detector crystal and low noise hybrid preamplifier in a housing measuring only 13mm diameter x 84mm in length. The probe is supplied complete with a 2 meter long connecting input/output cable, allowing the unit to be used immediately upon receipt.

  • Gamma-ray Spectroscopy
  • Health Physics
  • Medical Diagnostics
  • Site Monitoring
  • X-ray Fluorescence
  • Position Sensing
  • X-ray Diffraction
  • Dosimeters
  • Industrial Gauging
  • Astronomy
  • Small Size
  • Excellent Energy Resolution
  • High Charge Collection Efficiency
  • High Photo Peak Efficiency
  • Low tailing and high peak-to-valley ratios
  • Room-temperature operation
  • High Speed Detection
  • Robust
  • Non Hygroscopic
CZT Detector Dimensions  5x5x5mm» with CAPture® contacts 
Measurement Capabilities  Energy Range: 10 to 670keV
Energy Resolution: < 4% FWHM @ 122 KeV @ 25ºC
(contact eV for exact value depending on the application specifics)
Operating Temperature  Range: - 30º to 50º C Standard
 SPEAR Dimensions  12mm diameter x 89mm length
Housing Finish Anodized Gold comes standard. (A wide range
available. Contact eV Products for information)
SPEAR Detector Input Requirements 9 PIN Sub D connector: +12V DC, ground
SHV connector: HV bias (typically +500 to +1000VDC)
Signal Output BNC connector
As assembled, all Input/Output connectors will interface directly
with any standard spectroscopy or counting system.
SPEAR Performance + 7 to 12V DC Operation
Input Capacitance: 6.6pF
Risetime @ C source: 1pF- 35nS
Falltime @ C source: 1 pF - 725uS
Noise @ C source: 0pF - ~160 e¯ (Si)
Sensitivity: 3.2 mV/fCoul
Power dissipation : 130 mW
(+ 12 VDC supply)

UKTo download the A4 English datasheet click here
USATo download the US Letter English datasheet click here
ChinaTo download the A4 Chinese datasheet click here

Contact Us

Kromek Group plc, NETPark, Thomas Wright Way,
Sedgefield, County Durham TS21 3FD United Kingdom

Tel: +44 (0) 1740 626060 Fax: +44 (0) 1740 626061

Registered in England and Wales number 8661469

facebook  linkedin  twitter  youtube 

We're on twitter

9001 2015

© Copyright Kromek Group plc. All Rights Reserved.