formule

Question 1

1 u =

Answer 1

931,5 Mev/C2

Question 2

1eV=

Answer 2

1,6 x 10-19 J

Question 3

E=

Answer 3

mc^2

hv

Question 4

deltaM

Answer 4

M-Zxmp-(A-Z)mn

Delta E = delta M c^2

Question 5

frequence et longueur d’onde

Answer 5

frequence = c / lambda

Question 6

E (eV) =

Answer 6

1240/lambda (nm)

= -13,6 Z2/n2

Question 7

N(t)

Answer 7

No exp (-lambda t)

Question 8

t1/2

Answer 8

ln(2)/lambda

Question 9

1/Teff

Answer 9

1/T + 1/Tbio

Question 10

vie moyenne

Answer 10

taux = 1 / lambda

Question 11

A

Answer 11

lambda N(t)

Question 12

m =

Answer 12

M A Tphy / Na ln(2)

Question 13

noyau stable

N2

Answer 13

N10 (1-exp(-lambda1t)

Question 14

fils instable

Answer 14

N2(t) = N10 lambda1/ lambda2 -lambda1 (exp (-lambda1t) - exp (-lambda2t) )

A2(t) N10 lambda2/ lambda2 -lambda1 (exp (-lambda1t) - exp (-lambda2t) )

Question 15

tm

Answer 15

ln (lambda2) - ln(lambda1) / lambda2 - lambda1

Question 16

cas ou T1>T2

Answer 16

A2/A1 = lambda2 / lambda2 - lambda 1

= T1 / T1 - T2

Question 17

cas ou T1&raquo_space; T2

Answer 17

equilibre seculaire

Question 18

cas ou T1&laquo_space;T2

Answer 18

noyau se desintegre selon sa propre periode

Question 19

flux energetique

Answer 19

rond barre = dE/dt en W

Question 20

intensite

Answer 20

J = drond barre/dS en W/sr

Question 21

fluence energetique

Answer 21

F = dE/dS en J/m2

Question 22

proba attenuation photoelectrique

Answer 22

t = Ci p Z3 E-3

Question 23

proba attenuation compton

Answer 23

B Z /E

Question 24

proba attenuation

Answer 24

C Z

Question 25

energie electron diffuse (compton)

Answer 25

E’ = hv4’

= E / 1+ E/moc2 (1-cos angle)

Question 26

energie electron compton

Answer 26

Ec = h(v-v’) - Wn

= E-E’

Question 27

compton

angle diffusion

Answer 27

1/E’ - 1/E = 1/ moc2 (1-cos angle)
=0 : Ec=0
= 180 = photon retrodiffuse

Question 28

CDA

Answer 28

ln 2 / proba attenuation total

Question 29

particule lourde

R

Answer 29

= To / TLE

Question 30

particule lourde

S

Answer 30

S = Scoll

Question 31

particule lourde

TLE

Answer 31

TLE = Scoll

Question 32

energie moyenne formation paire d’ion

Answer 32

W = Eo /n

Question 33

DLI

Answer 33

TLE / W

Question 34

Particule legere

S

Answer 34

Scoll / Sras = ZT / 800

Question 35

Particule legere

R

Answer 35

= T(MeV) / 2p (g.cm-3 ou kg/L)

Question 36

concentration pharmaceutique C(t)

Answer 36

A/m

Question 37

DA

Answer 37

Fo x Ao x Emoy x Teff / m ln(2)

Question 38

Jd

Answer 38

-RTbS grad C

Question 39

Jh20

Answer 39

-RTbh20/Mh2O S grad X h20

Question 40

Q H2O

Answer 40

= VH20 x JH2o

Question 41

JF

Answer 41

-BH20 S gradP

grad P = delta P /e

Question 42

Js

Answer 42

Jf x C

Question 43

Qf

Answer 43

JF x VH20

Question 44

jei

Answer 44

• zi F bi S ci grad V

Question 45

I

Answer 45

= ZF jei
= gi ( V - Vieq)
cation : sens flux
anion : sens oppose

Question 46

gi depend

Answer 46

Ci
Zi
Bi

Question 47

differente formule pH 
par rapport a H+ 
A- et AH 
sel et acide 
x (taux avancement) 
beta

Answer 47

= -log (H+)
= pk + log ((A-) / (AH)) 
= pk + log (sel / acide )
= pk + log (x / a -x)  
= pk + log ( beta / 1-beta)

Question 48

pH acide carbonique

Answer 48

= 6,1 + log ( HCO3- / H2CO3)
HCO3- normal = 24 mmol
H2CO3 = 1,2 mmol
pH = 7,4

Question 49

PCO2

Answer 49

H2CO3 = alpha (0,03) x PCO2

Question 50

HCO3-

Answer 50

HCO3- = PCO2 alpha 10 ^ph-pk
= m + s (7,4-pH)
s = 8,2 + 1,56 Hb