Tools for Discovery

CAEN solutions for Diamond DetectorsJune 24th 2011, Viareggio

Giuliano Mini

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Diamond Detectors & their read out

Diamond Detectors require challenging read out electronics:

• High Gain

• High Analogue Bandwidth

• High Sampling Rate

Wideband Amplifier

(Very) Fast Digitizers

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Wideband Amplifier

A1423: 1.6 GHz bandwith (-3 dB) Positive or negative input signals Gain range: from +15 dB to +50

dB Input and output impedance 50 Ω,

SWR <1.5:1 Noise Figure: 5dB @ 1GHz Up to 500 V (positive or negative)

detector bias voltage Possibility to mount an

Embedded Fast Discriminator (under test)

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Fast Digitizers (I)

x751 family: 8/4/2 channels depending on Form Factor

and Sampling Rate 1/2 GSps 10 bit 500 MHz bandwidth (-3db) Memory buffer up to 14.5MS/s per channel

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Fast Digitizers (II)

x761 family: 2/1 channels depending on Form Factor 4 GSps 10 bit >850 MHz bandwidth (-3db) Memory buffer up to 57.6MS/s per channel

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Fast Digitizers (III)

x742 family: 32/16 +2 channels depending on Form Factor Up to 5 GSps 12 bit 600 MHz bandwidth (-3db) 1024 samples per event Memory buffer up to 1024 events per channel

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

Diamond

Syncrotron NIM Trigger(100 ns, -800mV, 50 Hz)

Neutron Beam Bunch spread 50

nsEn> 6 MeV

Wideband AmplifierGain x4, PoliMi

DT5751

ch1 ch0

RT~2 nsWidth~10 ns

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

An example of application (I)Digital ToF Measurements of Fast Neutrons in a Spallation Neutron

Source(ROTAX beamline at ISIS, M. Tardocchi, Milano Bicocca )

DBA-III

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

An example of application (II)

Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited Reproduction, transfer, distribution of part or all of the contents in this document in any form without prior written permission of CAEN S.p.A. is prohibited

An example of application (III)

• Time difference between trigger signal and max of detector pulse is stored with the max value•In figure is shown a typical ToF spectrum where the two peaks correspond to the two bunches of neutrons generated by the machine.