NIM modules

AN INTRODUCTION TO HIGH VOLTAGE NIM POWER SUPPLY

The high voltage module, NIM power supply, Standard or High Precision, for small setups require few channels with a high flexibility. The NIM power supplies are standardized, with a height of 222 mm and a width of 34.3 mm. They are fitted with high-speed serial interfaces of USB-2 or Ethernet. They are provided with a multi-point AMP connector on the rear panel. It supplies the voltages +/- 6 VDC, +/- 12 VDC and +/- 24 VDC (optional 117 VAC) with sufficient power.

They are versatile and suitable for high-resolution digitization applications, as well as for complex logical and synchronization functions, such as for spectroscopy amplifiers or simply for low and high voltage power supplies.

Different NIM solutions exist to meet this versatility:

  • FPGA-based NIMbox modules, programmable by Labview, to perform logic functions such as And, Or, Xor, Not, coincidences, VETOs, counters, triggers, clocks, NIM – TTL input / output conversions, delays, gates generator, various synchronous and asynchronous operations, discrimination with adjustable hysteresis threshold (leading edge), etc.
  • NIM high voltage modules in different configurations (low cost, standard and high precision), with 1, 2, 4 and 6 channels in voltage ranges from 100 VDC to 10 kVDC.
  • NIM cassettes in a kit for self-assembly and for integrating the PCBs of your own making, like for example cards based on processors to carry out acquisition tasks.
  • Preamps, spectroscopy amplifiers with constant fraction discriminator from our partner Mesytec ( http://www.mesytec.com/).

All these modules are supposed to be inserted in the chassis. You can find our complete range in the section ‘NIM chassis’.

 

Video demonstration of the NIM NHS series high voltage module (analogy with the last generation NHR)

  • Finding the USB connector with the NHS module
  • Select a specific high voltage channel
  • Read the voltage and current on the display
  • Push button for On / Off actions
  • Define the voltage ramp
  • Change the ADC Sample rate value
  • Change the value of the digital filter
  • Define hardware trip limits Vmax and Imax
  • Activate the Safety Loop of the NIM drawer
  • Read the temperature and the +/- 6 VDC and +/- 24 VDC power supply from the NIM chassis
    Etc …

NIM POWER SUPPLY NHR STANDARD & HIGH PRECISION

ISEG Spezialelektronik GmbH and Physical Instruments present the new generation of high voltage NIM power supplies from the NHR series (R = reversible polarity).

This model is based on developments of the past 2 years in NHS models with 2 new exclusive features:

  • Reversible polarity, positive (+) or negative (-), by active high voltage switch (transistor). The high voltage switch is activated by an electronic signal from the central processor which receives the user’s command, either in local mode (digital display menu and rotary encoder) or in remote mode (USB / CANbus with daisy chain setup) and by software. It is not necessary to remove the module from its NIM chassis, there is no need to remove half a dozen screws from the sidewall and no need to reverse a high voltage block at 180 °!
  • 3 ranges of voltages and currents. The step-up transformer has several secondary windings which are switched depending on the selectedThis type of high voltage generation supports the 3 distinct modes 2 kV / 4 mA, 4 kV / 3 mA and 6 kV / 2 mA for a power which is always 10 W max per range . This functionality makes it possible to use this module as well with Germanium detectors from 4 kV to 5 kV as well as with gaseous detectors of the type micromegas which operate with a few hundred volts, with great precision and great linearity.
  • NOVELTY: the ramps (ramp-up and ramp-down) can be adjusted for each channel independently.

The other aspects such as DAC and ADC resolution, multitasking, menu navigation are the same as for the NHS models.

The NHR high voltage NIM power supply exists with either 2 or 4 independent channels.

 

High voltage NIM power supply | Reversible polarity | 2000 V to 6000 V | 2 or 4 channels | NHR Standard
  • High voltage module, NIM power supply series NHR
  • Common ground CFG / common floating ground CF-GND / selection by jumper at the back
  • 4 versions of 2 and 4 channels
  • 2 kVOLT, 4 kVOLT and 6 kVOLT voltages in the same box
  • 3 HV generation modes – Vmode – 2 kV / 4 kV / 6 kV
  • Inominal current : 2 mA, 4 mA, 6 mA according to Vmode
  • Residual ripple and noise (< 10 mV peak to peak)
  • Electronically reversible polarity, positive (+) or negative (-)
  • Voltage and current measurement by multi-line, multi-color display
  • Programmable voltage ramp 0.2 Vmode / s max.
  • SHV connectors on the rear panel
  • Remote control via USB mode
  • iSEG Control 2 and Easy LV HV executable software (Windows / Linux / Mac OS)
  • 6U NIM mechanics, width 1/12
Reversible polarity NIM power supply | High voltage NHR | 2 or 4 channels | 2 kV to 6 kV | High Precision
  • High voltage module, NIM power supply series NHR
  • Common ground CFG / common floating ground CF-GND / selection by jumper at the back),
  • 4 versions of 2 and 4 channels
  • 2 kVOLT, 4 kVOLT and 6 kVOLT voltages in the same box
  • 3 HV generation modes – Vmode – 2 kV / 4 kV / 6 kV
  • Inominal current : 2 mA, 4 mA, 6 mA according to Vmode
  • Two current measurement ranges:
  • Low Range 0 < I0 < 20 µA
  • High Range 20 µA < I0 < Inominal
  • Current resolution: 50 pA for Low Range
  • Residual ripple and noise (< 3 – 5 mV peak to peak)
  • Electronically reversible polarity, positive (+) or negative (-)
  • Voltage control by digital rotary encoder
  • Voltage and current measurement by multi-line, multi-color display
  • Programmable voltage ramp 0.2 Vmode / s max.
  • SHV connectors on the rear panel
  • Remote control via USB mode
  • iSEG Control 2 and Easy LV HV executable software (Windows / Linux / Mac OS)
  • 6U NIM mechanics, width 1/12

 

STANDARD AND HIGH PRECISION NHS NIM POWER SUPPLY

The high voltage NIM power supply of the NHS series are available in 2 versions, as standard and as high precision version, with 6 output channels, and voltages from 100 V to 6 kV for currents from 1 mA to 15 mA.

These high-voltage NIM power supplies have a new modern and sober instrumentation, based on a digital multi-color and multi-line TFT ‘thin-film-transistor’ display. The menu navigation is simple, with a neat design and a tree structure it gives access to all physical parameters very quickly (On / Off, KillEnable / KillDisable, voltage ramps, current reading / voltage reading, selection of channels 1 to 6) .

Our NIM high voltage power supply from the NHS series provide access to control and command performances that have never been achieved in the NIM world before.This is in particular possible thanks to technology transfers from proprietary EHS modules such as:

  • DAC and ADC converters with excellent resolutions for an optimal precision level of voltage and current readings,
  • a more powerful central processor allowing the management of numerous status flags, etc.

The polarities are not switchable and must be determined in advance and need to be implemented in the factory. It is however possible to obtain a mixed version, with for example 3 negative and 3 positive channels.

There are several interfaces available to choose from: USB and CANbus.

The high voltage NIM power supply of the NHS series are an ideal complement to the NHQ solutions, which are widely used in the physics and electronics departments of CNRS, IN2P3 and CEA.

 

High voltage module | NIM power supply | NHS Standard | 6 channels | 100 V to 6 kV | ISEG
  • High voltage module, NIM power supply series NHS
  • Standard 6 channels
  • Fixed polarity, positive or negative, or mixed
  • High voltage up to 6 kV
  • Current up to 15 mA
  • Common ground (GND)
  • Residual ripple and noise (< 30 mV peak to peak)
  • Voltage control by digital encoder
  • Voltage and current measurement by multi-line / multi-color TFT
  • 20-bit resolution (DAC) in setpoint and 24-bit resolution (ADC) in measurement
  • Voltage Vmax and current Imax limitation by 2 micro-trimmers
  • Green ‘Ready’ LED
  • Yellow status LED On / Off
  • Individual inhibit via SUB-D on the front panel
  • KillEnable for each channel, current limiting mode or HV break mode
  • Programmable voltage ramp 0,2 Vnominal / s max.
  • SHV or BNC connector on the rear panel
  • Remote control via USB and CANbus
  • 6U NIM mechanics, 1/12 wide ​
High Voltage module | NIM power supply |  NHS High Precision | 6 channels | 100 V to 6000 V | ISEG
  • High voltage module, NIM power supply series NHS
  • High Precision 6 channels
  • Fixed polarity, positive or negative, or mixed
  • High voltage up to 6 kV
  • Current up to 10 mA
  • Common ground (GND)
  • Residual ripple and noise (< 20 mV peak to peak)
  • Voltage control by digital encoder
  • Voltage and current measurement by multi-line / multi-color TFT
  • Two current measurement ranges: 0 < I0 < 20 µA and 20 µA < I0 < Inominal
  • Current resolution: 50 pA for 0 < I0 < 20 µA
  • Resolution 20 bits (DAC) in setpoint and 24 bits (ADC) in measurement
  • Voltage Vmax and current Imax limitation by 2 micro-trimmers
  • Green ‘Ready’ LED
  • Yellow status LED On / Off
  • Individual inhibit via SUB-D on the front panel
  • KillEnable for each channel, current limiting mode or HV break mode
  • Programmable voltage ramp 0,2 Vnominal / s max.
  • SHV or BNC connector on the rear panel
  • Remote control via USB and CANbus
  • 6U NIM mechanics, width 1/12

NHQ NIM POWER SUPPLY, ENTRY LEVEL, STANDARD AND HIGH PRECISION

The hifg voltage NIM power supply of the NHQ series are available in 3 models: entry level, standard, and high precision. They have 1 or 2 output channels, and voltages from 2 kV to 10 kV for currents from 500 µA to 12 mA.

These high voltage NIM power supplies have complete instrumentation on the front panel, with several configuration switches (On / Off, KillEnable / KillDisable, current reading / voltage reading, local / remote mode selection, channel A / channel B selection), a potentiometer voltage 10-turn adjustment and a 4-digit LCD liquid crystal display for reading voltage and current (mantissa + exhibitor).

The instrumentation is completed by 2 rotary micro switches with 10% increments which clamp the hardware in voltage and current.

The polarities are switched by a rotary switch placed on the lateral side, in the center, and it is accessible from the outside. It is not necessary here to remove screws, open the cover and turn the high voltage block to change the polarity. There is no risk of breaking pins or tearing off components during such an operation.

Several interfaces are available: RS232 and USB, CANbus and analog port 0 – 5 V.

NEW: we provide Easy SHQ – NHQ executable software for Windows, Linux and MAC OS.

This concept, is proven for almost 20 years, it has been continuously upgraded with the latest technologies. NHQ modules are used in many applications in nuclear physics and particle physics at the CNRS, IN2P3 and CEA, but also in research at universities.

 

High Voltage module | NIM power supply | 2 kV to 6 kV | 1 or 2 channels | NHQ | ISEG
  • High voltage module, NIM power supply series NHQ
  • Entry level, low price, 1 and 2 channels
  • Reversible polarity by external side switch
  • High voltage up to 6 kV
  • Current up to 6 mA or 100 µA (option L or 104)
  • Common ground (GND)
  • Residual ripple and noise (< 50 mV peak to peak)
  • Voltage control by 10 turns potentiometer
  • Voltage and current measurement by 4 digits LCD and V / I micro switch
  • Resolution 16 bits (DAC) in setpoint and 16 bits (ADC) in measurement
  • Voltage Vmax and current Imax limitation by 2 trimmers
  • Yellow status LED On / Off
  • Red (+) and green (-) polarity LED
  • Red error LED
  • Individual inhibit via Lemo-hub on the front panel
  • KillEnable for each channel, current limit mode or HV break mode
  • Hardware voltage ramp 500 V/s
  • SHV connector on the rear panel
  • Remote control via analog mode 0 – 5 V
  • 6U NIM mechanics, width 1/12
High voltage module | NIM power supply | NHQ Standard | 2 kV to 10 kV | 1 or 2 channels | ISEG
  • High voltage module, NIM power supply series NHQ
  • Standard 1 and 2 channels
  • Reversible polarity by external side switch
  • High voltage up to 10 kV
  • Current up to 6 mA or 100 µA (option L or 104)
  • Common ground (GND)
  • Residual ripple and noise (< 200 mV peak to peak)
  • Voltage control by 10 turns potentiometer
  • Voltage and current measurement by 4 digits LCD and V / I micro switch
  • Resolution 16 bits (DAC) in setpoint and 16 bits (ADC) in measurement
  • Voltage Vmax and current Imax limitation by 2 trimmers
  • Yellow status LED On / Off
  • Red (+) and green (-) polarity LED
  • Red error LED
  • Individual inhibit via Lemo-hub on the front panel
  • KillEnable for each channel, current limit mode or HV break mode
  • Hardware voltage ramp 500 V / s
  • Programmable voltage ramp from 2 V / s to 255 V / s
  • SHV or LEMO connector on the rear panel
  • Remote control via RS232 and USB, CANbus
  • Easy SHQ – NHQ executable software for Windows, Linux and MAC OS
  • 6U NIM mechanics, width 1/12
NIM high voltage module |NHQ High Precision | 2 kV to 6 kV | 1 or 2 channels | ISEG
  • ​High voltage module, NIM power supply series NHQ
  • High precision 1 and 2 channels
  • Reversible polarity by external side switch
  • High voltage up to 6 kV
  • Current up to 6 mA
  • Common ground (GND)
  • Residual ripple and noise (< 5 mV peak to peak)
  • Voltage control by 10 turns potentiometer
  • Voltage and current measurement by 4 digits LCD and micro switch V / I
  • High resolution in voltage measurement: 10 mV (VHR option)
  • First current measurement range : 0 < I0 < 100 µA and 100 µA < I0 < Inominal (2MA option)
  • Second current measurement range: 0 < I0 < 10 µA and 10 µA < I0 < Inominal (option 2MA0n1)
  • Resolution 16 bits (DAC) in setpoint and 16 bits (ADC) in measurement
  • Voltage Vmax and current Imax limitation by 2 trimmers
  • Yellow status LED On / Off
  • Red (+) and green (-) polarity LED
  • Red error LED
  • Individual inhibit via Lemo-hub on the front panel
  • KillEnable for each channel, current limit mode or HV break mode
  • Hardware voltage ramp 500 V / s
  • Programmable voltage ramp from 2 V / s to 255 V / s
  • SHV connector on the rear panel
  • Remote control via RS232 and USB, CANbus
  • Easy SHQ – NHQ executable software for Windows, Linux and MAC OS
  • 6U NIM mechanics, width 1/12

MECHANICAL NIM MODULES

The mechanical NIM modules of the brand W-IE-NE-R Plein & Baus GmbH are extremely rigid and solid construction. The design is optimized to give maximum interior space, allowing you to position your PCBs in a correct and stable manner.

 

NIM cassette | Size 1/12 à 3/12 | WIENER Power Electronics
  • The mechanical NIM modules of the brand W-IE-NE-R Plein & Baus GmbH are extremely rigid and solid construction. The design is optimized to give maximum interior space, allowing you to position your PCBs in a correct and stable manner.
  • The mechanical NIM modules are available in 1/12, 2/12 and 3/12 formats. They are supplied with lateral flanks, front and rear sides, lower and upper flanks equipped with natural convection fins and the pre-wired connector to drive the useful voltages and the GND, blocks for the internal supports of electronic cards and specific screws. These NIM mechanics can be inserted near high voltage NIM modules into a chassis.

 

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