TAR-Time Amplitude Recorder

ULS2040, Four channel version with analog front-end

Block diagram


Block diagram of analog front-end board

General specifications

- 4-input/channel of 8192channel

- Preamp/shaping amp is included for each channel

- Time information is triggered by anode signal

- USB interface

- 3-width NIM Module

- Power requirement is +/-6V, +/-12V from NIM bin.

- GUI Monitor Program included

Explanations of the front/rear panel

- USB connector

- Power switch and LED indicator

- Reset switch

- Run switch and LED indicator

To run the TAR, this switch should be RUN mode. Then the application program can control the TAR to run or not. 

For each four-channel

- Input BNC connector

Impedance is 50ohm.

Anode type fast negative signal of PMT or

Input the output signal of fast timing amp(ex. FTA420 etc.).

- coarse gain select switch

Select the coarse gain to x10 or x100, you can use direct anode signal, or

Select the coarse gain to X1 or X10, you can use the output signal of another preamp module(ex. FTA420 etc.)

- fine gain control potentiometer

- pole-zero control potentiometer

With oscilloscope, monitoring the signal output located on the rear panel, tune the pole-zero potentiometer.

- LLD(Low Level Discrimination) level control

With oscilloscope, monitoring the trigger signal output located on the rear panel, tune the LLD potentiometer.

The trigger signal should be positive square pulse shape.

If the LLD level is lowered under the signal base level, trigger signal is disappeared or distorted.

- Signal output on rear panel, refer the block diagram

Gaussian shaped, signal processed pulse of the input signal.

- Trigger output on rear panel, refer the block diagram

TTL logic signal

Discriminated at the leading edge of the fast input signal.

Reference signal for time capture of input signal.

Reference signal for LLD




How to use the TAR.

- Download softwares

USB drivers

GUI monitor software and stream file, version March 13, 2012

- Install GUI monitor software

- Run the software

- Install TAR(ULS2040) and turn on the power

- Connect USB cable between PC and TAR

- Assign the USB driver to ULS2002 TAR FX2LP

- Confirm the TAR is connected, by the title bar of the GUI window

- In window, press Config chip button, then assign the ~.rbf file

- At TAR, Reset and run-stop toggle switch to run-position

- Write your data file directory path to save your measurement data

- Run start