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St Input Name Output Unit Comment
freq 9.9933E14 Hz frequency (Hz)
E 6.622E-19 Joule energy (Joule, erg, eV, kcal/mole)
v 33333.333 cm-1 wavenumber (cm-1)
25 Tc C temperature of photocathode (K, C)
4.27 delta gain per stage
V 899.9377 volts total voltage applied (volts, KV)
Vd 99.993077 volts voltage per dynode (volts, KV)
9 k number of dynodes (integer)
m 471900.98 multiplication factor
100 rt sec-1 cathode thermionic emission rate (sec-
2 Ec eV cathode work function (Joule, erg, eV,
1 eta collection efficiency (unitless)
.2 Klam quantum efficiency (unitless)
Rlam .04838649 amps/watt radiant cathode responsivity (amps/wat
Phip 1.51019E9 sec-1 photon flux on cathode (sec-1)
1E-9 Phi watts radiant flux on cathode (watts, mwatts
rcp 302038035 sec-1 rate at which electrons emitted from c
ic 4.839E-11 A cathode photocurrent (amps, mA, A, nA
ia 2.2834E-5 A anode photocurrent (amps, mA, A, nA,
Thresh 620.78274 nm threshold wavelength (nm, , m, cm)
ict 1.602E-17 amps cathode thermionic current (amps, mA,
iat 7.56E-12 amps anode thermionic current (amps, mA, A
C 1.0913E12 thermionic emission constant
1 Ac cm2 area of photocathode
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Rule sheet.
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* lambda = 1/v
* E = (6.6261E-34)*freq
* freq = (2.998E10)/lambda
* m=delta^k "page 111; 2nd after 4-24
* Vd=V/k "Figure 4-22
* delta=0.17*Vd^.7 "Empirical equation
* rcp=Klam*Phip "4-23
* Rlam=(Klam*1.602e-19)/E " after 4-28
* ia=eta*m*Rlam*Phi "4-30
* ic=rcp*1.602e-19 "4-24
* Phip=Phi/E " after 4-28
* Thresh=6.6261E-34*2.998E10/Ec " page 110, 1st
* ict=rt*1.602e-19 " 4-24 for thermionic current
* iat=m*eta*ict " 4-29 for thermionic current
* ict=C*Ac*Tc*Tc*exp(-Ec/(Tc*1.3805e-23)) "Page 112, 2nd
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