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DPP-PSD

Digital Pulse Processing for the Pulse Shape Discrimination
Free downloadable DPP-PSD Trial version.

  • The User can download the Trial Version for evaluation
  • The Trial version has a DAQ time frame limitation: every 30 min the user have to restart (Power off/power on) the board
  • To get full functionality the user should purchase a License and register it
  • The procedure is automatic and can be completed on our web site

CAEN Waveform Digitizers feature firmware for Digital Pulse Processing (DPP) for physics applications.
The purpose of the DPP is to perform online signal processing on detector signals directly digitized, able to transform the raw sequence of samples into a compressed data packet that preserves the information required, minimizing the event data size. DPP algorithms are implemented in FPGA and can be reprogrammed at any time. In one single module you have the complete information and the capability to extract all the quantities of interest.
The 720, 725, 730 and 751 series digitizers running DPP-PSD firmware become multichannel data acquisition systems for nuclear physics or other applications requiring radiation detection.
The digitizers accept signals directly from the detector and implement a digital replacement of Dual Gate QDC, Discriminator and Gate Generator.

The digitizer runs on real time:

  • Self Trigger using CR-RC digital Time filter algorithm
  • Input signal baseline (pedestal) calculation
  • Dual gate generation with programmable parameters
  • Double integration of the prompt and delayed charge for Pulse Shape Discrimination
  • Pedestal subtraction for energy calculation
Some typical applications:
  • Readout of PMTs coupled to organic liquid scintillators (e.g. BC501-A)
  • Applications that require a moderate timing resolution to perform coincidences
  • Gamma-Neutron discrimination (dual gate integration)
DPP-PSD Supported Boards(*)
Channels
8
8
4/2
4/2
16/8
16/8
8
8
16/8
16/8
8
8
8-4
8-4
4-2
4-2
Max Sampling Rate
250 MS/s
250 MS/s
250 MS/s
250 MS/s
250 MS/s
250 MS/s
250 MS/s
250 MS/s
500 MS/s
500 MS/s
500 MS/s
500 MS/s
1-2 GS/s
1-2 GS/s
1-2 GS/s
1-2 GS/s
Resolution
12-bit
12-bit
12-bit
12-bit
14-bit
14-bit
14-bit
14-bit
14-bit
14-bit
14-bit
14-bit
10-bit
10-bit
10-bit
10-bit
Form Factor
VME 6U module
VME64X 6U module
Desktop module
NIM module
VME 6U module
VME64X 6U module
Desktop module
NIM module
VME 6U module
VME64X 6U module
Desktop module
NIM module
VME 6U module
VME64X 6U module
Desktop module
NIM module
Notes
ONLY versions E/F/G
ONLY versions E/F
ONLY versions B/D/C/E
ONLY versions B/D/C/E








(*)The indication "size 1/ size 2" denotes different model versions while "size 1 - size 2" denotes different model operating modes
DPP-PSD control Software
DPP-PSD Control Software is a demo program that allows the user to understand the principle of operation of the Digital Pulse Processing (DPP) and to manage the acquisition of signals acquired and read out from the digitizers (CAEN series 720 12 bit @ 250 MS/s, 725 14 bit @ 250 MS/s, 730 14 bit @ 500 MS/s and 751 10 bit @ 1 GS/s). Using the DPP-PSD Control Software, the user can easily set all the parameters of the Digital Pulse Processing, configure the digitizers, run the acquisition, readout the data and plot or save the results in form of waveforms (like an oscilloscope) as well as charge and time tag histograms or lists.

Notes:
      • DPP-PSD runs only on x720 digitizers equipped with EP1C20 AMC FPGA.
      • DPP-PSD on x751 digitizers doesn't support DES mode (2 GS/s sampling frequency).
Description Release Date OS-Version Environment Download
Firmware CONET2 Compliant
Firmware   x720-x790 DPP-PSD FW CONET 2 Compliant 4.3_131.9 July, 2014
Release Notes 4.68 KB - Type: .txt Download
FW Package 862.59 KB - Type: .cfa Download
Firmware   x725 DPP-PSD FW CONET 2 Compliant 4.8_136.6 October, 2015
FW Package 1.5 MB - Type: .cfa Download
Release Notes 894.0 Bytes - Type: .txt Download
Firmware   x730 DPP-PSD FW CONET 2 Compliant 4.7_136.5 Sep, 2015
Release Notes 4.05 KB - Type: .txt Download
FW Package 1.49 MB - Type: .cfa Download
Firmware   x751 DPP-PSD FW CONET 2 Compliant 4.5_132.7 February, 2015
FW Package 956.5 KB - Type: .cfa Download
Release Notes 4.02 KB - Type: .txt Download

Related Models
Family Name Description
Digitizer Software CAENComm Library Interface library for CAEN Data Acquistion Modules
Digitizer Software CAENDigitizer Library Library of functions for CAEN Digitizers high level management
Digitizer Software CAENUpgrader Firmware Upgrade Tool for Front-end Boards Bridges & VME Power Supply
Digitizer Software DPP-PSD Control Software Software interface for DPP-PSD management

Code Description
WFWDPPNGAA20 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x720)
WFWDPPNG0220 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x720) - 2 Licence Pack
WFWDPPNG0520 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x720) - 5 Licence Pack
WFWDPPNG1020 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x720) - 10 Licence Pack
WFWDPPNG2020 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x720) - 20 Licence Pack
WFWDPPNGAA51 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x751)
WFWDPPNG0251 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x751) - 2 Licence Pack
WFWDPPNG0551 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x751) - 5 Licence Pack
WFWDPPNG1051 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x751) - 10 Licence Pack
WFWDPPNG2051 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x751) - 20 Licence Pack
WFWDPPNGAA30 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x730)
WFWDPPNG0230 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x730) - 2 Licence Pack
WFWDPPNG0530 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x730) - 5 Licence Pack
WFWDPPNG1030 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x730) - 10 Licence Pack
WFWDPPNG2030 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x730) - 20 Licence Pack
WFWDPPNG0525 Digital Pulse Processing for Pulse Shape Discrimination for (x725) - 5 Licence Pack
WFWDPPNG1025 Digital Pulse Processing for Pulse Shape Discrimination for (x725) - 10 Licence Pack
WFWDPPNG2025 Digital Pulse Processing for Pulse Shape Discrimination for (x725) - 25 Licence Pack
WFWDPPNGAA25 DPP-PSD - Digital Pulse Processing for Pulse Shape Discrimination (x725)
Model Package Function Description Compare
All - Reset
DPP-CI DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for the Charge Integration
DPP-DAW DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for Dynamic Acquisition Window
DPP-PHA DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for the Pulse Height Analysis (formerly DPP-TF)
DPP-PSD DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for the Pulse Shape Discrimination
DPP-QDC DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for Charge to Digital Converter
DPP-ZLEplus DPP Firmware/Software Tools (Digitizer) DPP Firmware Digital Pulse Processing for the Zero Length Encoding
Manuals Last Update
725/730 - DPP-PSD Registers Description 2 October, 2015
UM2580 - DPP-PSD User Manual 2 October, 2015
720/751 - DPP-PSD Registers Description 2 October, 2015
Application Notes Last Update
In this application note, we describe the capability of the Digitizer series x720 (12 bit, 250MS/s) to perform neutron-gamma discrimination based upon the digital pulse shape analysis. The digitizer runs the preliminary version of the DPP-PSD firmware for the digital charge integration and neutron-gamma discrimination. AN2506 - Digital Gamma Neutron discrimination with Liquid Scintillators 19 November, 2011
In this application note, Pulse Shape Discrimination between neutrons and gamma rays in liquid scintillators is studied by using DPP-PSD firmware running on CAEN digitizers. The dependence of the Figure of Merit on the digitizer sampling rate and resolution is experimentally determined. Based on "Pulse shape discrimination with fast digitizers", L. Stevanato et al, NIMA 748 (2014) 33-38, DOI: 10.1016/j.nima.2014.02.032 AN3250 - Pulse Shape Discrimination with different CAEN digitizers running DPP-PSD firmware 13 July 2014
Slide Presentations Last Update
An integrated mobile system for port security is presented. The system is designed to perform active investigations, by using the tagged neutron inspection technique, of suspect dangerous materials as well as passive measurements of neutrons and gamma rays to search and identify radioactive and special nuclear materials. Presented at 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference, Valencia, Spain 23-29 October 2011. SP2668 - An integrated mobile system for port security. 27 October, 2011
SP5148 - Digital systems for Multi-Parametric analysis in Physics Applications (India - March 2016) March, 2016
Guides Last Update
This guide wants to provide detailed instructions on how to make coincidences with CAEN digitizers series 720, 750 and 724 equipped with Digital Pulse Processing (DPP) firmware. GD2827 - How to make coincidences with CAEN digitizers 04 July, 2016
Scientific Articles Last Update
An integrated mobile system for port security is presented. The system is designed to perform active investigations, by using the tagged neutron inspection technique, of suspect dangerous materials as well as passive measurements of neutrons and gamma rays to search and identify radioactive and special nuclear materials. Presented at the Second International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and their Applications(ANIMMA2011), ICC-Ghent, Belgium 6-9 June 2011. AR2548 - An integrated mobile system for port security. 07 June, 2011
The energy resolution of a LaBr(Ce) detector has been studied as a function of the count rate up to 340 kHz by using a 12bit 250 MS/s V1720 digitizer. The time resolution achieved by processing off line the digitized signals has been also determined. The results are compared with the ones obtained by using standard NIM electronics. Presented at IX Latin American Symposium on Nuclear Physics and Applications (IX LASNPA), EPN-Quito, Ecuador 18-22 July 2011. AR2611 - High Rate Read-Out Of LaBr(Ce) Scintillator With The CAEN V1720 FADC. 19 July, 2011
The detection of special nuclear material has been studied with the SMANDRA mobile inspection system used both as a high sensitivity passive neutron/gamma spectroscopic tool and as an active inspection device using tagged neutrons. Presented at IX Latin American Symposium on Nuclear Physics and Applications (IX LASNPA), EPN-Quito, Ecuador 18-22 July 2011. AR2610 - Special Nuclear Material Detection Studies With The SMANDRA Mobile System. 21 July, 2011
The detection of special nuclear material has been studied with a mobile inspection system used both as a high sensitivity passive neutron/gamma spectroscopic tool and as an active inspection device using tagged neutrons. The detection of plutonium samples seems to be possible with passive interrogation, even for small samples. The passive detection of uranium is much more difficult because of the low neutron yield and of the easiness of shielding the gamma ray. However, we show that active interrogation with tagged neutrons is able to provide signatures for the discrimination of uranium against other heavy metals. AR2613 - Special nuclear material detection with a mobile multi-detector system September, 2011
White Paper Last Update
This†White†Paper†explains†the†possibilities†offered†by†Digital†Pulse†Processing†algorithms†in†Nuclear†Physics†applications: Pulse Triggering and Timing Filters, Pulse Height Analysis (DPP-PHA - Digital MCA), Charge Integration (DPP-CI - Digital QDC), Pulse Shape Discrimination (DPP-PSD - Neutron/gamma Discrimination), Time measurements. WP2081 - Digital Pulse Processing in Nuclear Physics 26 August, 2011

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