• 4x4x16 Scintillation Detectors

Large volume scintillation crystals can be coupled to Photomultiplier Tubes (PMTs) or Silicon Photomultipliers (SiPMs) and integrated in detector assemblies with front end electronics. Assemblies can be constructed with integrated or demountable PMTs, ending in 14 pins or with a complete set of electronics. Large volume scintillators can also now be read out via SiPMs with comparable energy resolution achieved to PMTs. Contact BNC to discuss your application and requirements as many options are possible.


Unique features

  • Built-in Ultra stable Cockroft Walton High Voltage Generator
  • Built-in Preamplifier, spectroscopic amplifier and SCA
  • Low power consumption (250 mW)
  • Common Applications


Type number V102A406/ 3.5M-HV-E3-X2
Photomultiplier 3.5" diameter demountable PMT with solid µ-metal shield
High Voltage Generator Cockroft Walton Type
High Voltage Polarity Negative
High Voltage regulation 0-1500 V (20 turn screw potentiometer at back of assembly)
HV test point 1V = 1kV (red)
Test point +5V or +12 (stabilized)
Present at back of assembly
(1 V = 1 kV)
LLD test=blue
ULD test=yellow
LLD/ULD adjust Two 20-turns
Potentiometers (0-100%) with test points
Power Requirements 250 mW
Electrical connections 2-core shielded cable for power supply and signal(3m)
Special connectors available on request
Temperature range -30° to +60°C
Housing 1.0mm aluminum or stainless steel
Spectroscopy amplifier VALUE
Output impedance 50Ω
Shaping time 0.56µs
Pulse shape Bipolar
1 µs rise time
1 µs fall time
Maximum output 8.5 V
Energy resolutions <8% FWHM at 662 keV
HV generator noise <2 keV


4"x4"x16" Detector with Full Electronics
127 x 127 x 406 mm NaI(Tl) Scintillation Crytal, 90 mm PMT
Energy Resolution < 8 % FWHM at 662 keV
Built-in ultra stable Cockroft Walton HV Generator, Preamplifier, SCA
5"x3"x16" Detector for Low Background Applications
76 x 127 x 406 mm NaI(Tl) Scintillation Crystal, 76 mm PMT
Energy Resolution < 8.5% FWHM sideways halfway at 30 cm off-axis
Stainless Steel Housing = Low Radiological Background 
2"x4"x16" Detector with PMT or SiPM Read Out
51x 127 x 406 mm Scintillation Crystal
51 mm PMT, or SiPM array
Ruggedized, Demountable PMT


PDF icon 4x4x16-datasheet.pdf287.18 KB