ArgonneBeamTest_2003-11-03.ppt1 Argonne Beam Test preparation Tsunefumi Mizuno ([email protected])[email protected] Tuneyoshi Kamae ([email protected])[email protected]

ArgonneBeamTest_2003-11-03.ppt 1

Argonne Beam Test preparationTsunefumi Mizuno

([email protected])Tuneyoshi Kamae

([email protected])November 03, 2003

History of changes•October 17, 2003 First written by T. Mizuno•October 20, 2003 updated•October 22, 2003 updated by T. Mizuno•October 29, 2003 updated by T. Mizuno•November 03, 2003 updated by T. Mizuno

mailto:[email protected]

mailto:[email protected]


20cm

20cm

18cm

PMT Mount (1)


PMT Mount(2)


Module list SLAC can provide (as of Oct17)1) Very old PMT HV supply (0-3000V): 1 unit2) Hand-made 8ch distributor for the HV supply (item 1 above) No voltage adjustment possible.3) Desktop power supply (Vmax=30V, Imax=500mA): 1 unit4) Desktop power supply (Vmax=20V, Imax=2A): 1 unit5) Charge preamplifier (16ch) by Clear Pulse in Japan: 1 unit Requires +12V and -12V. Integration time 56us6) Shaping amplifier (16ch) by Clear Pulse (?): 1 unit Shaping time 2us. 2 outputs per channel7) Fast discriminator by Philips Scientific (looks almost like the one by LRS): 2 units. Each takes 5 inputs.8) Gate generator (2ch) by LRS222: 1 unit. One channel has some problem.9) NIM/TTL level converter (16ch): 1 unit10) Fast coincidence (3ch) made by SLAC: 1 unit. 4 inputs per channel.11) Very very old visual scaler: 2 units.12) NIM Crate: 1 unit13) Oscilloscope Tektronix 2443: 1 unit14) PMT borrowed from Princeton: 8 units (takes negative HV)15) Fast hexagonal scintillator: 8 units16) PCI-based DAQ by ADLink: Digital I/O card (PCI-7200): 1 unit17) PCI-based DAQ by ADLink: ADC card (PCI-9810): 1 unit. 4ch 10bits18) PCI-based DAQ by ADLink: ADC card (PCI-9812): 1 unit. 4ch 12bits19) Desktop PC for PCI-based on-line DAQ with LabView20) Princeton current amplifier (4ch): 1 unit.

1)-19) have been used in Spring 8 test.

We plan to modify the DAQ system at Spring-8 and use it for Argonne Beam Test. We will show the DAQ diagram in near future


DAQ system (for test with RI)•For reference, test setup with RI at SLAC is given here. Please see the next page for the setup of Argonne beam test.


DAQ system (for beam test)•Install sensors and analog modules in beam area, and others in monitor room (if possible).•Not central scintillator but surrounding 6 scintillators generate the trigger (to reduce the trigger rate). We will see if there is hit in central scintillator or not in off-line analysis.•We want to borrow following modules;

•Visual scaler (all we have are two, very old, single-channel visual scalers)•Compact HV supply (if possible)•Pulse Generator (this is not crucial, but helps us test the DAQ in laboratory and at Argonne)


DAQ System(2)

Sampling rate and the # of data points per card.They are user adjustable but some other combinations of parameters make the DAQ unstable

display waveforms

# of data points per channel after the trigger. This is user adjustable

# of data points per channel that will be displayed and recorded to a file, user adjustable

data file names (waveform data and peak data)

Trigger conditions, user adjustable

For every 10 events (this # is user adjustable), DAQ records events to a disk and displays waveforms of the last event in the “packet”.

# of acquired packets


DAQ system(3)•Data acquisition speed is ~600Hz (depends on the packet size chosen by user).•DAQ records two files, one is to save the peak voltages (text file) and the other all waveform data (binary file, 50 points per channel=400points per event). The peak data file size is ~50byte/event and waveform data file ~1600byte/event (1.6Gbyte for 1M events!). Do we need to record waveforms?

•Peak data file looks like below. (I fed pulse only in channel 1)0.000 -1.086 0.000 0.000 0.000 0.000 0.000 0.0000.000 -1.060 0.000 0.000 0.000 0.000 0.000 -0.0100.000 -1.086 0.000 0.000 0.000 0.000 0.000 -0.0100.000 -1.069 0.000 -0.002 0.000 0.000 0.000 -0.010-0.002 -1.099 0.000 0.000 0.000 0.000 0.000 -0.010-0.002 -1.101 -0.002 0.000 0.000 0.000 0.000 -0.010-0.002 -1.101 0.000 -0.002 0.000 0.000 0.000 -0.010-0.002 -1.057 0.000 -0.002 0.000 0.000 0.000 0.000-0.002 -1.094 0.000 -0.002 0.000 0.000 0.000 -0.010

Require substantial (e.g., depE>=20keV) energy deposition in surrounding scintillators (see the previous page). Then the trigger rate becomes reasonable.


Modules and support structure241Am and scatterer

Detectors(inside)

Preamp(charge amp)

Shaper

Support structure(~1.2m height, positions of the wooden plane are adjustable)

Above is the photo of RI test setup. We may bring the support and use it at Argonne if the “lift table” doesn’t fit for our setup.


Result of RI experiment

polarization vector

30degree0degree

•Source: 241Am(59.5keV->53.3keV)•2hits is required (detection threshold is 3keV)•depE<20keV for central scintillator•40keV<=totDepE<=80keV


Modules from SLAC(1)•Fan-in/Fan-out•Pulse generator (for DAQ test )•PMT amp•Discriminator*2•Coincidence•Dual Gate Generator (to generate trigger)•Dual Gate Generator (to generate clock)•NIM/TTL level adapter•Two single-channel scalers•HV supply•NIM Crate


Modules from SLAC(2)

•Sensors(PMT+scint.)•Power supply (+-12V, +-15V)•HV divider•Charge amp•Shaping amp


Modules from SLAC(3)New PMT mount (an Al plate and rotation mechanism to be added to the plastic mount shown in page 2), under construction


Modules from SLAC (4)•PCI-based DAQ by ADLink: Digital I/O card (PCI-7200): 1 unit•PCI-based DAQ by ADLink: ADC card (PCI-9810): 1 unit. 4ch 10bits•PCI-based DAQ by ADLink: ADC card (PCI-9812): 1 unit. 4ch 12bits•Desktop PC for PCI-based on-line DAQ with LabView and LCD monitor•10m BNC cables*10•Consumable supplies (e.g., optical glue, grease, tape), utensils (e.g., driver), etc.

We want to borrow following modules if possible•Visual scaler (at least 2ch)•HV supply (negative HV for PMT)•Pulse generator, clock generator•oscilloscope

Documents

ArgonneBeamTest_2003-11-03.ppt1 Argonne Beam Test preparation Tsunefumi Mizuno ([email protected])[email protected] Tuneyoshi Kamae ([email protected])[email protected]