mca527 datasheet en cours

Harl Vincent

Informations

• Publié par: Vyof
• Nombre de lectures: 34
• Langue: English

Extrait

MCA527
Digital Miniature Multi Channel Analyzer
The MCA527 is a battery powered high performance 16K Multi-Channel Analyzer/Multi-
Channel Scaler module with the performance of a laboratory grade MCA. High voltage supply
for detector and preamplifier power supply are integrated as well as an internal coarse
amplifier and digital filtering and analysis. Together with a detector it forms a small-size
gamma spectroscopy system, which is well suited to the demands of field measurements for
international safeguards, environmental monitoring, nuclear waste treatment facilities,
radioactive transport control and similar applications.
Furthermore, the MCA527 supports a vast number of different detectors and its 16k resolution
is adequate to support high resolution gamma spectrometry with HPGe detectors. As the
MCA527 works with digital filtering, it allows to set a broad range of filter time constants and it
is also tolerant to largely differing preamplifier signal shapes.
The MiniMCA software allows to operate the device as a general purpose multi channel
analyzer (SPEC, WinSPEC) and multi scaler analyzer (MCS, WinMCS). Additional user
programs which support safeguards specific applications as U-235 enrichment verification,
UF6, LENG, RATE, WINScan are available.
The MCA 527 is the successor of the MCA166 with completely new designed hardware. It has
enhanced battery operating time and allows connection and charging by USB port. Besides
this, its fully compatible to MCA166 and can be run with all existing MCA166 software.
Safe technologies
Domaine du petit Arbois
CEEI BP 88
13545 Aix en Provence Cedex 4
Tel : [phone]
Fax : [phone]
Mail : [e-mail]
GBS Elektronik GmbH Tel.: [phone] – 0
Bautzner Landstraße 22 Fax.: [phone] -21
01454 Großerkmannsdorf E-Mail: [e-mail]
Germany Website: www.gbs-elektronik.deMCA527
Digital Miniature Multi Channel Analyzer
between 2 subsequent events.Hardware Specification
JSR mode: emulates the behavior of the
neutron coincidence counters /shift registers
JSR14 and JSR12)
Coarse amplifier prefilter with amplifications in
steps of 2-5-10-20-50, corresponding to a full scale
ADC input range from 12V to 500mV.
Resolution (FWHM) for typical 500mm² planar HPGe
Input DC coupled, offset adjustable and depending
detector for count rates < 10000cps and a Am241
on polarity of input signal.
source at 59keV:linearity better than 0.1%.
<510eV at 1 s shaping time
<460eV at 2 s shaping time
Usable spectral range from 100% down to 0.13% (e.g.
14bit, 10 MSps
3 keV to 2300 keV) with optimized system.
Integral Nonlinearity <0.05%
Throughput in memory:
temperature stability TK 50
>75kcps in memory at 140kcps input rate and 0.5 s
shaping
>35kcps in memory at 50kcps input rate and 2 s
double differential trigger filter, or single differential
shaping time
low energy low count rate trigger filter.
Pile-up-suppression, pulse pair resolution ~400ns,
depending on trigger filter.
± 12 V, 60mA / ± 24V, 60mA
Automated (and manual*) adjustment of trigger
Detector HV up to ±3.6kV, polarity depends on module
threshold.
inserted. Also ±3kV modules from MCA-166 can be used.
Shaping time (Integration time / rise time of filter
D9/pin3: Aux. analog input, 10 bit, 0-10V*
divided by 2) adjustable in the range 0.1 – 25 s.
D9/pin5: HV inhibit
Flat top adjustable 0-5 s.
D9/pin8: 1-wire interface to connect temp sensors.
fine adjustment of amplification in steps of <0.05%.
Internal temperature measurement, MCA temperature
Channel splitting 128, 256, 512, 1k, 2k, 4k, 8k or
is saved with spectrum.
16k
GPS receiver*.Differential nonlinearity <1% for 4k channels and
1 s shaping time.
Base Line restorer with adjustable averaging.
Li-Ion batteries, operation time 10-25h, depending on
Optimum spectroscopic performance for 50 s
detector connected.
preamp decay time constant.
PZC adjustment, detector decay time constants
from 40 s (*5 s) to 1ms can be compensated.
USB, RS-232 (38.4, 115.2, 307.2 kBd and 3MBd),
Peak stabilization possible.
Ethernet.
PHA (pulse height analysis), result is a All firmware command analog to MCA166 with some
histogram of pulse height.
extensions. Runs with all previous MCA-166 software.
MCS (multi channel scaling): registers number
of counts in subsequent time intervals.
Gated operation, gated events (e.g. light Housing 164 mm x 111 mm x 45 mm without
pulses) are collected in a second spectrum and can connectors; weight 820g.
be used for stabilization. SHV plug for HV, BNC for Signal, Lemo00/Camac for
Sample mode: Input signal is recorded without gate input, D9 for preamp supply and aux. inputs, plugs
processing, similar to an oscilloscope. for power supply, interface, LED for status and
autonomous repeat mode: makes series miniature switch for ON/OFF.
measurements and stores them in up to 2GB
internal non volatile memory.
operational: at least 0 - 50 °C, eventual larger range.Start-Stop-mode: time difference between a
start signal at the gate input and an event is humidity up to 90%, non condensing, IP42.
recorded as histogram. May be used for time of- EMC compliant
flight spectroscopy and similar applications.
List mode: values of occurring pulse height are
OEM / low cost downgraded version.stored sequentially.
Integrated display and user interface.List mode 2: registers sequentially the time
GBS Elektronik GmbH Tel.: [phone] – 0
Bautzner Landstraße 22 Fax.: [phone] -21
01454 Großerkmannsdorf E-Mail: [e-mail]
Germany Website: www.gbs-elektronik.de