Title :
A discriminator with a current-sum multiplicity output for the PHENIX multiplicity vertex detector
Author :
Smith, R.S. ; Kennedy, E.J. ; Jackson, R.G. ; Simpson, M.L. ; Britton, C.L. ; Bryan, W.L. ; Jagadish, U. ; Young, G.R. ; Jacak, B.V. ; Kapustinsky, J. ; Oscarson, A.
Author_Institution :
Tennessee Univ., Knoxville, TN, USA
Abstract :
A current output multiplicity discriminator for use in the front-end electronics (FEE) of the Multiplicity Vertex Detector (MVD) for the PHENIX detector at RHIC has been fabricated in the a 1.2-μ CMOS, n-well process. The discriminator is capable of triggering on input signals ranging from 0.25 MIP to 5 MIP. The frequency response of the discriminator is such that the circuit is capable of generating an output for every bunch crossing (105 ns) of the RHIC collider. Channel-to-channel threshold matching was adjustable to ±4 mV. One channel of the multiplicity discriminator occupied an area of 85 μ×630 μ and consumed 515 μW from a single 5-V supply. Details of the design and results from prototype device testing are presented
Keywords :
detector circuits; discriminators; frequency response; nuclear electronics; position sensitive particle detectors; 1.2 micron; 5 V; 515 muW; CMOS; Multiplicity Vertex Detector; PHENIX detector; bunch crossing; channel-to-channel threshold matching; current output multiplicity discriminator; frequency response; front-end electronics; triggering; Analog memory; Attenuation; CMOS process; Circuits; Detectors; Frequency response; Laboratories; Preamplifiers; Prototypes; Testing;
Conference_Titel :
Nuclear Science Symposium, 1996. Conference Record., 1996 IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-3534-1
DOI :
10.1109/NSSMIC.1996.591022
