AIDA
GELINA
BRIKEN
nToF
CRIB
ISOLDE
CIRCE
nTOFCapture
DESPEC
DTAS
EDI_PSA
179Ta
CARME
StellarModelling
DCF
K40
AIDA
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> MSL type BB18(DS)-1000 serial 2998-22 > Bias +200V, I_L +=6.200uA, ambient temperature +20.1 deg C > > DSSSD - AIDA adaptor PCB cabling > > 4 off LH Coupler (Kapton PCB, 5cm), 2x 34-way Samtec ribbon cable (45cm), RH coupler(Kapton PCB, 10cm) > + 3M 1245 1.4mil copper foil screen ribbon cables + RH coupler only (i.e. not LH coupler) > + drain wires -> gold-plated Lemo-00 test input connectors > > nnaida 11 & 12 AIDA adaptor PCB rev B > nnaida 13 & 14 AIDA adaptor PCB rev C (LK1 fitted) > ground links LK3 & LK7 fitted to nnaida11-14 AIDA adaptor PCBs > > Heavy duty copper cable connects copper front end frames of FEE modules > Nitto 5011N conductive gasket between FEE module and front end frames > > Standard ASIC settings > nnaida 11 & 12 - negative input > nnaida 13 & 14 - positive input > > Pulser BNC PB-5 > Fall time 1.0ms > Rate 100Hz > Delay 250ns > Ampl 5.00000V > Polarity + > Pulse top Tail > Atten 10x > Clamp ON > - polarity via Cooknell SA1 Summing Amplifier > > 207Bi source, approx centred on DSSSD, approx 3cm from DSSSD > > File R30 > shaping time 8uS > slow comparator 6 (dec) > start: 10.21 stop: 15.09 > spectra saved to disk 16.10 BST (sic) > Pulser OFF > > see attachments 1-4 (stat & rate hit patterns) > > File R33 > shaping time 8uS > slow comparator 5 (dec) > start: 16.03 stop: 17.44 > spectra saved to disk 18.45 BST (sic) > Pulser OFF > > Connect DSSSD-AIDA adaptor PCB screened cabling drain wires to adaptor PCB > mounting holes and secure with M3 socket bolts. With introduction of conductive > gasket should be equivalent to previous grounding via crocodile clips and gold-plated > Lemo-00 test input connectors. > > 18.19 Bias +200V, I_L +=6.760uA, ambient temperature +20.2 deg C > > File R34 > shaping time 8uS > slow comparator 8 (dec) > start: 18.34 stop: 10.19 19.2.16 > spectra saved to disk 11.20 BST (sic) > Pulser OFF > > see attachments 5-8 > > Attachments 9 & 10 > > DSSSD energy (~10keV/ch) versus DSSSD strip # > Note some eveidence for non-linearity at low amplitude for p+n strips (128-255) cf. n+n strips > (0-127) > > Projection of above showing energy spectrum for one strip. Can observe 478 and 975keV K-lines > and prominent Landau peak near threshold. Threshold estimated at ~80-100keV (slow comparator 0x8). > > m(p+n strips) = m(n+n strips) = 1, E(p+n strip)-E(n+n strip) = +/- 100keV > > Enegy spectra ADC offset correct, no relative gain adjustment > > Attachments 11, 12 > > Energy (p+n strip) versus E(n+n strip) > ~10keV/channel, m(p+n strips) = m(n+n strips) = 1, with & without equal energy gate > > Attachments 13, 14 & 15 > > Raw hit pattern, m(n+n strips) and m(p+n strips) > > Attachment 16 - gzip'd tar file of sorted R34 spectra (see attachments 17 & 18) > > Attachment 17 - FORTRAN user subroutine > > Attachment 18 - ADC offset variables used by FORTRAN user subroutine > > Attachment 19 - ADC offsets
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