Fragment Mass Analyzer upgrades and X-array status Darek Seweryniak, ANL.
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Transcript of Fragment Mass Analyzer upgrades and X-array status Darek Seweryniak, ANL.
Fragment Mass Analyzer upgradesand
X-array status
Darek Seweryniak, ANL
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High beam intensity and efficiency updates
FMA upgrades– New beam dump– New entrance quadrupole doublet
Implantation station upgrades– 160X160 DSSD– Digital electronics
X-array status– New frame– 5th super clover
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New beam dump
Unreacted beam strikes the inside of the anode and the tank near the exit from the tank relatively close to the electrodes
Move the interaction area away from the electrodes Avoid dumping the beam on the anode Requires significant modification of the tank
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Before…
After…
B. DiGiovine
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New entrance quads
1st quad shorter with higher fields similar concept was used in EMMA Increase the solid angle from 8 msr to 12 msr at
relatively short distances between target and FMA
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FMA at 293 mm – stand-alone
OLD:y=0.038 rad
y,max=0.0401 rad
Qx=0.046 radx,max=0.0495 rad
NEW:y=0.060 rad
y,max=0.0634 rad
Qx=0.059 radx,max=0.0591 rad
=7.4 msr =11.8 msr
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FMA implantation station
Ge clovers 160X160 DSSD
Large area Si
Si/PiN box
plastic dets
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New high-granularity DSSD
160x160 strips64mm x 64 mm100, 140 m thick
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160X160 DSSD in-beam test
ln t
E
109Te/5s
109I/100s
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Digital DAQ for DSSD
IOC 4XDIG IOC 4XDIG IOC 4XDIG
IOC master TTC + 2 router TTC
CPU Diskarray
CPU
NETWORK switch
Based on the GRETINA DAQ (320 channels) Synchronization with analog DAQ through a common clock signal We have just started implementing 160-channel DAQ.
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New X-array frameStephen Heimsatz
5 clover detectors in a box geometry 64x64 mm, 160x160 DSSD
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X-array
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X-array frame features
Frame horizontal movement (rails) and vertical adjustment
In-out detector adjustment All electronics on board but ADC Laptop for controlling and monitoring “portable” (transportation mode) Auto LN2 system on board (to be implemented)
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Plastic beta detectors
FMA
Identify DSSD pixel beta originated from Thin plastic scintillators with photodiodes Identify beta hitting a Ge detetector Full beta energy in Ge (high energy betas)
plastic
Ge
Ge
plastic
Ge
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Thank you!