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Gamma stream

Digital MCA Tube Base for Gamma-Ray Spectroscopy
CAEN Gamma stream is a compact and portable system for gamma ray spectroscopy with scintillation detectors, which provides an active Multi-Channel Analyzer (MCA) integrated in a 14-pin photo-multiplier tube (PMT) base. Gamma stream fully integrates in a stand-alone device the high voltage to bias the PMT, the preamplifier to shape the signal from detector, and the MCA for a complete Pulse Height Analysis online.

Gamma stream makes easy the measurements with scintillation detectors, such as Nal(Tl), LaBr3(Ce) and CeBr3, with no need of additional cables. Its socket and voltage divider can supply standard 14-pin and 10-stage (S2580 and S2580G models) or 8-stage (S2580LB and S2580LBG models) PMTs.

Gamma stream has been designed to work stand-alone, with no need of additional devices, cables, nor human assistance. Gamma stream feautures internal rechargeable Li-Ion battery prodividing long-term duration for unattended on-field acquisitions. Once Gamma stream is programmed via computer or mobile phone, it then acquires and logs data in an internal SSD memory. An embedded CPU, running Linux® OS, controls the acquisition and data recording, as well as the supported communication interfaces.

Multi-interface communication capability by Ethernet, USB 2.0, Bluetooth® or Wi-Fi, makes possible the remote control via computer or smartphone.

Gamma stream can be fully controlled by the MC2 Analyzer software [RD1] running on Windows ® OS PC. In addition to Gamma stream, MC2 Analyzer has been designed to manage all CAEN Digitizers running the DPP-PHA firmware (Digital Pulse Processing for Pulse Height Analysis) and the PHA based family of CAEN Desktop/NIM MCA, such as DT5780 and DT5781. Besides the standard board and spectra configuration, the software feautures functionalities like spectra calibration, peak search and analysis, etc.

The dedicated GammaTOUCH mobile application is provided for AndroidTM based devices to control Gamma stream not only for all the relevant settings for the device, but even for the GPS application (mobile GPS), and the list mode. Dedicated S2580G and S2580LBG versions feature an embedded GPS component.

Considering that scintillation detectors are usually sensitive to temperature changes, and advanced algorithm for gain stabilization is available. The user can select a specific range where the algorithm recognizes a peak and adjust its position according to the temperature variations.
Mechanical
Dimensions

71.2 W x 66.4 H x 163.8 L mmł (including connectors)
Weight

700 g
Detector & PMT
-
Scintillation detectors
-
14-pin 10-stage PMTs (S2580)
-
14-pin 8-stage (S2580LB)
Digital Signal Processing
-
12-bit and 62.5 MHz ADC
-
Software selectable coarse gain: x1, x2, x4, x8
-
Trapezoidal filter for the energy calculation with software adjustable rise time in the range 0÷16 µs and flat top in the range 0÷16 µs
-
Trigger threshold software adjustment
-
Software fine tuning of the Pole-Zero cancellation
-
Digital fine gain
-
Automatic gain stabilization
-
Pile-up rejection and Live Time correction
-
Baseline restorer with programmable averaging
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Time stamp: 16 ns resolution
-
High frequency noise filter
Data Storage Internal SSD memory can guarantee data logging for the whole battery autonomy
High Voltage Power Supply
-
Output Bias Voltage: 0 ÷ +1500 V
-
Output Bias Current: 500 µA max.
-
Output ripple (full load): Typical < 5 mVpp; Maximum < 10 mVpp
-
Setting resolution: steps of 1 V
Operating Modes
-
PHA (Pulse Height Analysis): pulse height histogram over 1k-2k channels
-
List mode: pulse height and time stamp for each event
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Signal Inspector: input and internal filters waveforms
-
MCS (COMING SOON)
-
SCA (COMING SOON)
Trigger Modes
-
Stand-alone: triggering based on the channel self-trigger
-
Correlated: Veto with other GammaStream; Coincidence/Anticoincidence or Veto with an external trigger (COMING SOON)
-
External: triggering based on an external trigger
Front Panel Digital I/O
OUT (LEMO LVTTL 3.3V, Rt = 50 Ohm)

General Purpose Output:
OUT option: Fast Trigger Discrimination signal
Other options (COMING SOON)
Synchronization, Start/Stop Acquisition
IN1 & IN2 (LEMO LVTTL 3.3V, Zin = 50 Ohm)

General Purpose Input:
IN1 option: Veto signal
IN2 option: Synchronization signal (trigger time stamp reset)
Other options (COMING SOON)
Coincidence/Anticoincidence, Start/Stop Acquisition
Indicators Status and battery LEDs
Communication Interface
Ethernet

10/100 Mbit interface RJ45 connector
Bluetooth

USB host port (USB2.0) compliant to BT dongle included in the kit

USB

MiniUSB client port
USB 2.0 compliant
Up to 30 MB/s transfer rate

Wi-Fi

USB host port (USB2.0) compliant to Wi-Fi Micro
Adapter included in the kit

GPS (S2580G and S2580LBG only)

Front panel SMA female jack to interface with GPS active
antenna included in the kit
Firmware Firmware can be upgraded via USB/Ethernet
Software
-
Fully controlled by the MC˛ Analyzer spectroscopy software for Windows PC
-
GammaTOUCH mobile application for smartphones or tablets equipped with Android OS
Description Release Date OS-Version Environment Download
Driver
Windows Gamma stream mini-USB Win32 Driver 1.0 June, 2017 Windows 7 or Greater
Drivers 351.96 KB - Type: .zip Download
Windows Gamma stream mini-USB Win64 Driver 1.0 June, 2017 Windows 7 or Greater
Drivers 355.03 KB - Type: .zip Download
 
Firmware
Firmware   Gamma stream Firmware 1.2.1 June, 2017
FW Package 2.02 MB - Type: .zip Download
Release Notes 3.15 KB - Type: .txt Download

Related Models
Family Name Description
Digitizer Software MC˛Analyzer Digital MCA Data Acquisition and Analysis Software
MCA Sofware GammaTOUCH Gamma stream control software for Android

Code Description
WS2580XAAAAA S2580 - GAMMASTREAM - Digital MCA Tube Base for Gamma-Ray Spectroscopy
WS2580LBXAAA S2580LB - GAMMASTREAM - Digital MCA Tube Base for LaBr3 (Ce) Gamma-Ray Spectroscopy
WS2580GXAAAA S2580G - GAMMASTREAM - Digital MCA Tube Base with GPS for Gamma-Ray Spectroscopy
WS2580LBGXAA S2580LBG - GAMMASTREAM - Digital MCA Tube Base with GPS for LaBr3 (Ce) Gamma-Ray Spectroscopy
Model Package Function Description Compare
All - Reset
DT5770 Digital Multichannel Analyzers Multi Channel Analyzers Digital Multi Channel Analyzer - Desktop
DT5780 Digital Multichannel Analyzers Multi Channel Analyzers Dual Digital Multi Channel Analyzer (HV & Preamplifier PS) - Desktop
DT5781 Digital Multichannel Analyzers Multi Channel Analyzers Dual/Quad Digital Multi Channel Analyzer - Desktop
Gamma stream Digital Multichannel Analyzers Multi Channel Analyzers Digital MCA Tube Base for Gamma-Ray Spectroscopy
Hexagon Digital Multichannel Analyzers Multi Channel Analyzers Simultaneus Dual Digital Multi Channel Analyzer
N1728A NIM Multi Channel Analyzers 4 Ch. 14 bit 100 MS/s Digitizer with Pulse Shape Analysis (Differential Inputs)
N1728B NIM Multi Channel Analyzers 4 Ch. 14 bit 100 MS/s Digitizer with Pulse Shape Analysis (Single Ended Inputs)
N6780 Digital Multichannel Analyzers Multi Channel Analyzers Dual Digital Multi Channel Analyzer (HV & Preamplifier PS) - NIM
N6781 Digital Multichannel Analyzers Multi Channel Analyzers Dual/Quad Digital Multi Channel Analyzer - NIM
N957 NIM Multi Channel Analyzers 8k Multi-Channel Analyzer

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