Nuclear Electronics

Boson MCA acquires and displays spectra with overlapping by energy range up to 1000 times
No resolution deterioration at operation in the beginning of spectrum energy range
Stable operation with preamplifiers of TPR type with output voltage swing up to +/- 10 V and reset duration up to 250 us
Automated P/Z adjustment
Improved dead time correction
Spectrum stabilization
Setting and control of all parameters using colour LCD display with touch screen
Complete remote control of Boson MCA via software from PC
Dead time correction
Base Line Restorer (BLR)
Operation with preamplifier TPR

COMPLETE SET

Boson MCA with software
Color LCD display with touchscreen
HV power supply unit
Preamplifier power supply unit (+/-12 V; +/-24 V)
MCA state display indicator
Connectors: input; protection control output analogue and digital. Available interface to connect to computer: USB, LAN, RS-232. Connector for preamplifier power supply unit. Two HV connectors for detector HV power supply. GATE signal connector. Outer power supply connector.
AC/DC adaptor
Boson MCA has control for all operation modes by the program installed in remote computer

All settings are saved in spectrometer memory in case of power supply disconnection.

Basic settings:

HV ON and OFF
HV polarity switching
HV value setting
Input signal polarity switching
Amplification coefficient setting coarse (in analogue section)
Amplification coefficient setting smooth (in analogue section)
P/Z compensation adjustment with optimal adjustment indication
ADC capacity switching 1024 / 2048 / 4096 / 8192 / 16384
Discrimination threshold value setting of “fast” channel (CRM) in conventional unit, in the range of 0 – 30% of dynamic range (by amplitude of output signal on “LIN OUT”)
Discrimination threshold value setting of low signal level (LLD) in the channels, in the range of 0 – 50% of dynamic range (by amplitude of output signal on “LIN OUT”)
Discrimination threshold level setting of high signal level (HLD) in the channels, in the range of 50 - 100% of dynamic range (by amplitude of output signal on “LIN OUT”)
Shaping time constant switching
Basic line restoration time switching (8 values)
Dead time correction
Spectrum acquisition time setting
Spectrum acquisition ON and OFF
Switching of communication port with the outer computer: USB,LAN, RS-232

Parameter	Value
Shaping time constant	4 shaping time constant 0,5...24 us (by request))
Coarse gain	5,10,20,40,80,160,320,640 (by request)
Fine gain	1 ... 2
Input signal polarity	+/-
TRP preamplifier support	Yes
Integral nonlinearity	+/- 0,025%
Differential nonlinearity	<1%
Gain temperature coefficient	<50 ppm/⁰ C
MCA, chn	16k
Input count rate	up to 200000cps
Power preamp	+/- 12В 60mA +/- 24В 40mA
HV out	+/-5000 V or +/-2000 V /0.5mA
Power supply	+9... 18 V; 1 А
Consumed power	12 W
Indication	TFT color touchscreen 3.2"
Communication interface	USB; Ethernet; RS-232 or I/O control by request

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