btev rich hv system. the rich hv system power one 24v – 1.2a tng matsusada hvps hpd
Post on 20-Dec-2015
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TNG Calibration TNG: “totally neat gadget”, RS232 standard, 4 channels, 13-bit ADC.
Slope: 0.609, 0.610, 0.610, 0.612 mV.
Offset: 3.49, 1.75, 0.87, 0.50 mV.
TNG Calibration: Special Features
Weird structure in channel 2: ( understood finally )
Slope = 0.610043, Step = n100.
Channel 3 & 4: integrated non-linearity ~ 0.1 mV.
Consumption of Power I output,convert is the
portion of input current that consumed directly into output current.
Input current slopes: 35.0/k for 1.8 G load. 33.1/k for 2.8 G load.
Output current slopes: 1.06/k for 1.8 G load. 0.95/k for 2.8 G load.
Current difference at 4V (~20KV output): 7.5 mA for input current. 0.5 mA for output current.
The RICH HV System
Power One 24V – 1.2A
TNG
Matsusada HVPS
HPD
Matsusada HVPS provides “ultra low ripple” (3 mV peak to peak), and suitable output voltage (0 ~ 30 kV).
HVPS control voltage provided by TNG (Totally Neat Gadget), Labview based control program done.
Power provided by a 24V DC power supply.
We tested one HVPS with simulated load to check linearity and ideas on control and measurement.
HV cable and connectors are under investigation.
Noise rejection rate need to be studied.
Schematic layout of HV system done and need optimization.
V c
ontr
ol (
05V
)
HV Cable and Connector
Cable: Belden 8267 (RG-213/U) Price (Newark): $842/1000ft (611 for N>25)
We need: 100032ft + 793100ft 30,000 ft
Cost: 30$842 = $25,260 ($18,400)
Connectors: Amphenol Coax connector 83-1SP-1050: $1.87 (>500)
Buckhead receptacle 83-878: $2.02 (>100)
Buckhead adapter 83-1F: $16.41(>100)
Cost: 711$1.87 + 237$2.02 +23716.41 $5,697.48
Estimation of total budget: ( $31,000)
To Do
How to measure the output currents and voltages?
Noise rejection rate the quality of 24V PS.
HV cable.
Crate cage: ~$250.
Meters and other parts.
Do we need alarm?
13-bitDACTNG
Alarm
Relay
MatsusadaHVPS 5G0.
5M
A
24V
PS
120V AC
0.1
47 k
0. 1F To HPD
To PCAnalog inputs
V control
+24V
HV out
V out
V out
TNG
RS232
MatsusadaHVPS
0.1
47 k
0. 1F
V control
+24V
HV out
MatsusadaHVPS
0.1
47 k
0. 1F
V control
+24V
HV out
VSPI
Digital I/O
5G0.
5M
A To HPD
V
5G0.
5M
A To HPD
V