-
1 angle de Bragg
брэгговский угол, угол брэгговского отражения -
2 angle de Bragg
-
3 angle
m- angle accessoire
- angle adapté en phase
- angle adjacent
- angle d'affûtage
- angle aigu
- angle d'allumage
- angle d'amorçage
- angle d'amplitude
- angle d'anomalie
- angle d'approche
- angle d'appui de la courroie
- angle d'arrivée d'air
- angle d'assemblage
- angle d'attaque
- angle d'avance
- angle axial
- angle azimutal
- angle de balayage
- angle de basculement
- angle de biais
- angle de blaze
- angle de Bragg
- angle de braquage des ventelles
- angle de Brewster
- angle brewstérien
- angle de brillance
- angle de capillarité
- angle au centre
- angle du champ
- angle de champ visuel
- angle du chanfrein
- angle de chanfreinage
- angle de charge
- angle de chevauchement
- angle de chute
- angle de cisaillement
- angle de clivage
- angle complémentaire
- angle de contact
- angle de correction
- angle du coude
- angle de coupe
- angle de couteau
- angle critique
- angle du croisement
- angle de décalage
- angle de déclinaison
- angle de déclivité
- angle de décollement
- angle de décrochage
- angle de déflexion
- angle de déformation
- angle de dégagement
- angle de déphasage
- angle de déplacement
- angle de dépouille
- angle de dérapage
- angle de dérive
- angle de désadaptation
- angle de désalignement
- angle de descente
- angle de détalonnage
- angle de deuxième courbure
- angle de déversement
- angle de déviation
- angle dièdre
- angle de diffraction
- angle de diffusion
- angle de diffusion coulombienne
- angle de divergence
- angle droit
- angle d'écart
- angle d'écartement
- angle d'écoulement
- angle d'éjection du combustible
- angle d'élévation
- angle embrassé
- angle d'émergence
- angle d'engrènement
- angle d'entaillage
- angle d'entrée
- angle d'excentricité
- angle extérieur
- angle externe
- angle à flancs
- angle de flèche
- angle de flexion
- angle de friction
- angle du front d'onde
- angle de frottement
- angle de glissement
- angle d'hauteur
- angle d'hélice
- angle de l'hélice du filet
- angle d'inadaptation
- angle d'incidence
- angle d'incidence aérodynamique
- angle d'incidence critique
- angle d'inclinaison
- angle induit
- angle intérieur
- angle de lacet
- angle de liaison
- angle limite
- angle de mouillage
- angle d'obliquité
- angle obtus
- angle d'ombre
- angle opposé
- angle d'ouverture
- angle parallactique
- angle de parcours
- angle de pas
- angle de passage
- angle de pente
- angle de pente d'affûtage
- angle de pertes
- angle de phase
- angle de pivotement
- angle plan
- angle de plané
- angle plat
- angle de pliage
- angle de pointe
- angle polaire
- angle polyédrique
- angle de portance nulle
- angle de poussée
- angle de précession
- angle de pression
- angle primitif de la denture
- angle de prise de vue
- angle projeté
- angle de raccordement
- angle rapporteur
- angle de réflexion
- angle de réfraction
- angle de repos
- angle de retard
- angle de rétrodiffusion
- angle de révolution
- angle de rotation
- angle à la rupture
- angle saillant
- angle séparé
- angle de sillon
- angle solide
- angle solide utile
- angle au sommet
- angle du sommet du cristal
- angle de sortie
- angle de la spirale
- angle supplémentaire
- angle de sustentation nulle
- angle de synchro
- angle de taillant
- angle terminal du cristal
- angle tétraédrique
- angle de tir
- angle de torsion
- angle de tranchant
- angle de transit
- angle trièdre
- angle de valence
- angle vectoriel
- angle vif
- angle de visée
- angle de vision
- angle visuel -
4 Bragg
-
5 Bragg angle
= Bragg reflection angle угол Брэгга, угол брэгговского отражения -
6 Bragg reflection angle
English-Russian electronics dictionary > Bragg reflection angle
-
7 Bragg angle
= Bragg reflection angle угол Брэгга, угол брэгговского отраженияThe New English-Russian Dictionary of Radio-electronics > Bragg angle
-
8 Bragg reflection angle
The New English-Russian Dictionary of Radio-electronics > Bragg reflection angle
-
9 Bragg angle
Bragg angle braggscher Winkel mEnglish-German dictionary of Electrical Engineering and Electronics > Bragg angle
-
10 bragg açısı
bragg angle -
11 bragg angle
bragg açısı -
12 Bragg angle diffraction
English-Russian electronics dictionary > Bragg angle diffraction
-
13 Bragg diffraction
= Bragg angle diffraction брэгговская дифракция, дифракция (под углом) Брэгга -
14 Bragg angle diffraction
The New English-Russian Dictionary of Radio-electronics > Bragg angle diffraction
-
15 Bragg diffraction
= Bragg angle diffraction брэгговская дифракция, дифракция (под углом) БрэггаThe New English-Russian Dictionary of Radio-electronics > Bragg diffraction
-
16 Bragg angle
Bragg açisi -
17 bragg angle
bragg açısı -
18 angle
угол || располагаться под углом; образовывать угол; иметь наклон || угловой- angle of attack
- angle of azimuth
- angle of convergence
- angle of current flow
- angle of cutoff
- angle of departure
- angle of divergence
- angle of elevation
- angle of flow
- angle of gap
- angle of halftone screen lines angle
- angle of incidence
- angle of internal reflection
- angle of lag
- angle of lead
- angle of prism
- angle of propagation
- angle of radiation
- angle of reflection
- angle of refraction
- angle of retard
- angle of rotation
- angle of total internal reflection
- angle of view
- acceptance angle
- acute angle
- advance angle
- alternate angles
- antenna elevation angle
- antenna look angle
- aperture angle
- arm angle
- aspect angle
- axial angle
- azimuth angle
- azimuthal angle
- beam angle
- beam coverage solid angle
- beam solid angle
- beam width angle
- bearing angle
- bistatic angle
- bond angle
- Bragg angle
- Bragg reflection angle
- Brewster angle
- bubble deflection angle
- bunching angle
- central angle
- commutating angle
- complementary angle
- conduction angle
- constraint angle
- contact angle
- convergence angle
- course angle
- crab angle
- critical angle
- crossing angle
- current-transformer phase angle
- cutoff angle
- cutting angle
- deflection angle
- depression angle
- descending vertical angle
- dielectric loss angle
- dielectric phase angle
- diffraction angle
- dig-in angle
- dihedral angle
- dip angle
- drag angle
- drift angle
- drift correction angle
- electrical angle
- entrance angle
- epoch angle
- exterior angle
- eye-contact angle
- Faraday rotation angle
- flare angle
- flight-path angle
- flow angle
- fusion angle
- fusional angle
- glancing angle
- glide-slope angle
- gliding angle
- grain-boundary angle
- grating-lobe angle
- grazing angle
- grid bearing angle
- grid course angle
- grid heading angle
- groove angle
- half-cone angle
- half-value angle
- Hall angle
- head off-set angle
- head wrap angle
- horizontal contact angle
- hour angle
- hyperbolic angle
- ignition dwell angle
- impedance angle
- included angle
- interfacial angle
- interior angle
- ionosphere critical angle
- listening angle
- loss angle
- magnetic loss angle
- major-lobe angle
- maximum angle
- maximum deflection angle
- minimum angle
- minor-lobe angle
- minus angle
- nutation angle
- oblique angle
- obtuse angle
- off-boresight angle
- off-boresight target angle
- offset angle
- opening angle
- operating angle
- optic angle
- optic-axial angle
- overlap angle
- phase angle
- pitch angle
- plane angle
- plate-current angle of flow
- polar angle
- polarization angle
- poloidal angle
- potential-transformer phase angle
- precession angle
- principal angle of incidence
- principal azimuth angle
- projection angle
- pseudo-Brewster angle
- recording angle
- reentering angle
- reentrant angle
- reference angle
- reflex angle
- relative viewing angle
- right angle
- rocking angle
- roll angle
- Sasaki angle
- scan angle
- scanning angle
- scattering angle
- screen angle
- screening angle
- search angle
- sidewall angle
- sight angle
- sine-wave angle
- slewing angle
- slope angle
- solid angle
- space angle
- spatial angle
- specular angle
- spherical angle
- sputtering source solid angle
- squint angle
- station angle
- straight angle
- supplementary angle
- synchro angle
- take-off angle
- thyratron firing angle
- tilt angle
- track angle
- track tilt angle
- transit angle
- valence angle
- valence-bond angle
- vertical angle s-
- vertical modulation angle
- vertical tracking angle
- viewing angle
- visual angle
- wave angle
- wave-deviation angle
- wide scan angle
- yaw angle
- zero-coupling angle -
19 angle
угол || располагаться под углом; образовывать угол; иметь наклон || угловой- acute angle
- advance angle
- alternate angles
- angle of arrival
- angle of attack
- angle of azimuth
- angle of convergence
- angle of current flow
- angle of cutoff
- angle of departure
- angle of divergence
- angle of elevation
- angle of flow
- angle of gap
- angle of halftone screen lines
- angle of incidence
- angle of internal reflection
- angle of lag
- angle of lead
- angle of prism
- angle of propagation
- angle of radiation
- angle of reflection
- angle of refraction
- angle of retard
- angle of rotation
- angle of total internal reflection
- angle of view
- antenna elevation angle
- antenna look angle
- aperture angle
- arm angle
- aspect angle
- axial angle
- azimuth angle
- azimuthal angle
- beam angle
- beam coverage solid angle
- beam solid angle
- beam width angle
- bearing angle
- bistatic angle
- bond angle
- Bragg angle
- Bragg reflection angle
- Brewster angle
- bubble deflection angle
- bunching angle
- central angle
- commutating angle
- complementary angle
- conduction angle
- constraint angle
- contact angle
- convergence angle
- course angle
- crab angle
- critical angle
- crossing angle
- current-transformer phase angle
- cutoff angle
- cutting angle
- deflection angle
- depression angle
- descending vertical angle
- dielectric loss angle
- dielectric phase angle
- diffraction angle
- dig-in angle
- dihedral angle
- dip angle
- drag angle
- drift angle
- drift correction angle
- electrical angle
- entrance angle
- epoch angle
- exterior angle
- eye-contact angle
- Faraday rotation angle
- flare angle
- flight-path angle
- flow angle
- fusion angle
- fusional angle
- glancing angle
- glide-slope angle
- gliding angle
- grain-boundary angle
- grating-lobe angle
- grazing angle
- grid bearing angle
- grid course angle
- grid heading angle
- groove angle
- half-cone angle
- half-value angle
- Hall angle
- head off-set angle
- head wrap angle
- horizontal contact angle
- hour angle
- hyperbolic angle
- ignition dwell angle
- impedance angle
- included angle
- interfacial angle
- interior angle
- ionosphere critical angle
- listening angle
- loss angle
- magnetic loss angle
- major-lobe angle
- maximum angle
- maximum deflection angle
- minimum angle
- minor-lobe angle
- minus angle
- nutation angle
- oblique angle
- obtuse angle
- off-boresight angle
- off-boresight target angle
- offset angle
- opening angle
- operating angle
- optic angle
- optic-axial angle
- overlap angle
- phase angle
- pitch angle
- plane angle
- plate-current angle of flow
- polar angle
- polarization angle
- poloidal angle
- potential-transformer phase angle
- precession angle
- principal angle of incidence
- principal azimuth angle
- projection angle
- pseudo-Brewster angle
- recording angle
- reentering angle
- reentrant angle
- reference angle
- reflex angle
- relative viewing angle
- right angle
- rocking angle
- roll angle
- Sasaki angle
- scan angle
- scanning angle
- scattering angle
- screen angle
- screening angle
- search angle
- sidewall angle
- sight angle
- sine-wave angle
- slewing angle
- slope angle
- solid angle
- space angle
- spatial angle
- specular angle
- spherical angle
- sputtering source solid angle
- squint angle
- station angle
- straight angle
- supplementary angle
- synchro angle
- take-off angle
- thyratron firing angle
- tilt angle
- track angle
- track tilt angle
- transit angle
- valence angle
- valence-bond angle
- vertical angles
- vertical modulation angle
- vertical tracking angle
- viewing angle
- visual angle
- wave angle
- wave-deviation angle
- wide scan angle
- yaw angle
- zero-coupling angleThe New English-Russian Dictionary of Radio-electronics > angle
-
20 angle
1) угол2) уголок ( металлический профиль)3) угол, фаза ( колебаний)•angle at a circumference — вписанный угол;at right angles — под прямым углом;angle is subtended by arc — угол стягивается дугой;angle is subtended by chord — угол опирается на хорду;to be at a proper phase angle — быть в фазе, совпадать по фазе;to bisect angle — делить угол пополам:to lay off angle — откладывать угол;angle to left — геод. круг лево;to make an angle — составлять угол;angle to right — геод. круг право-
acceptance angle
-
acute angle
-
addendum angle
-
adjacent angles
-
aircraft impact angle
-
airflow angle
-
alternate angles
-
angle of action
-
angle of advance
-
angle of approach
-
angle of arrival
-
angle of attack
-
angle of azimuth
-
angle of backing-off
-
angle of bell
-
angle of bevel
-
angle of boom
-
angle of climb
-
angle of convergency
-
angle of crossing
-
angle of cut
-
angle of deflection
-
angle of departure
-
angle of descent
-
angle of deviation
-
angle of dig
-
angle of dip
-
angle of divergence
-
angle of draw
-
angle of effective rotation
-
angle of elevation
-
angle of exaggeration
-
angle of exit
-
angle of extinction
-
angle of flare
-
angle of floor
-
angle of flow
-
angle of flute helix
-
angle of friction
-
angle of glide
-
angle of heel
-
angle of helm
-
angle of hip
-
angle of ignition
-
angle of incidence
-
angle of internal friction
-
angle of internal reflection
-
angle of lag
-
angle of lead
-
angle of list
-
angle of loading
-
angle of loll
-
angle of main stream
-
angle of pitch
-
angle of plane
-
angle of preparation
-
angle of prism
-
angle of propagation
-
angle of radiation
-
angle of reflection
-
angle of refraction
-
angle of repose
-
angle of rest
-
angle of retard
-
angle of roll
-
angle of rotation
-
angle of rupture
-
angle of scan
-
angle of shear
-
angle of shearing resistance
-
angle of shock
-
angle of sight
-
angle of site
-
angle of slide
-
angle of slope
-
angle of stall
-
angle of torsion
-
angle of transit
-
angle of trim
-
angle of twist
-
angle of vanishing
-
angle of vel
-
angle of view
-
angle of wall friction
-
angle of yaw
-
angle or flange
-
aperture angle
-
apparent visual angle
-
approach noise angle
-
aspect angle
-
attack angle
-
automatic advance angle
-
axes angle
-
azimuthal angle
-
azimuth angle
-
back angle
-
back relief angle
-
back-to-back angles
-
base angle
-
base helix angle
-
beam angle of scattering
-
beam angle
-
beam deflection angle
-
beam spread angle
-
bearing angle
-
best climb angle
-
bistatic angle
-
blade angle
-
blade-entrance angle
-
blade-exit angle
-
bond angle
-
borehole drift angle
-
boresight angle
-
bosh angle
-
Bragg angle
-
Brewster angle
-
brush shift angle
-
bucket diggings
-
bunching angle
-
burble angle
-
cam angle
-
camber angle
-
camera angle
-
canting angle
-
capsizing angle
-
carrier angle
-
caster angle
-
caving angle
-
central angle
-
clearance angle
-
cockpit cutoff angle
-
combined angle
-
commutating angle
-
commutation delay angle
-
complementary angles
-
complete angle
-
conduction angle
-
cone angle
-
constant climb angle
-
convergence angle
-
cord angle
-
corresponding angles
-
course angle
-
crab angle
-
crack angle
-
crank angle
-
crater angle
-
creascrecovery angle
-
critical angle
-
crown angle
-
current transformer phase angle
-
cut angle
-
cutoff angle
-
cutting angle
-
cutting edge angle
-
dead angle of shutter
-
dead angle
-
deadrise angle
-
decay angle
-
decrement angle
-
deflection angle
-
delay angle
-
depression angle
-
deviation angle
-
dielectric loss angle
-
dielectric phase angle
-
diffraction angle
-
diffusion angle
-
dip angle
-
direct angle
-
direction angle
-
discharge angle
-
displacement angle
-
divergence angle
-
dozer blade angle
-
draft lug angle
-
drift angle
-
dumping angle
-
dwell angle
-
effective angle of rotation
-
electrical angle
-
electric angle
-
electrode angle
-
elevation angle
-
elevation scan angle
-
emergent beam angle
-
end cutting edge angle
-
end relief angle
-
end-clearance angle
-
entering angle of driving pin
-
entering angle
-
entrance angle
-
epoch angle
-
Euler angle
-
exit angle
-
exterior angle
-
exterior opposite angles
-
face angle
-
fiber orientation angle
-
field angle
-
firing delay angle
-
fixer advance angle
-
flange angle
-
flap angle
-
flare angle
-
flat angle
-
flex angle
-
flow angle
-
frame toe-in angle
-
frame toe-out angle
-
front angle
-
front clearance angle
-
full angle
-
glancing angle
-
gradient angle
-
grain-boundary angle
-
grazing angle
-
Greenwich hour angle
-
groove angle
-
half-intensity beam angle
-
Hall angle
-
head-wrap angle
-
helix angle
-
hock angle
-
hole angle
-
horizontal angle
-
hose orientation angle
-
hour angle
-
hysteretic angle
-
idler tilt angle
-
ignition dwell angle
-
image angle
-
impedance angle
-
impinging angle
-
included die angle
-
inherent delay angle
-
input phase angle
-
inscribed angle
-
interfacial angle
-
interference angle
-
interhollow angle
-
interior angle
-
interior opposite angles
-
intersection angle
-
interslot angle
-
jet angle
-
lag angle
-
large bell angle
-
launch angle
-
lead angle
-
left deflection angle
-
light angle
-
limiting wetting angle
-
lip angle
-
list angle
-
listening angle
-
lock angle
-
locking angle
-
look angle
-
lose angle
-
magnetic hysteresis angle
-
magnetic loss angle
-
major cutting edge angle
-
making angle
-
margin angle
-
minor cutting edge angle
-
minor-lobe angle
-
miter angle
-
n-edged angle
-
nip angle
-
nominal angle of rotation
-
nozzle convergence angle
-
nozzle divergence angle
-
nutation angle
-
oblique angle
-
obtuse angle
-
off-axis angle
-
off-boresight angle
-
offset angle
-
opening angle
-
operating angle
-
opposite angle
-
optimum angle
-
orbital plane angle
-
out angle of claw mechanism
-
overlap angle
-
overlapping angle of maltese mechanism
-
perigon angle
-
phase angle
-
pickup angle
-
pitch angle
-
pivot angle
-
pivot stud angle
-
plan approach angle
-
plane angle
-
pointing angle
-
polar angle
-
polarization angle
-
polyhedral angle
-
position angle
-
potential transformer phase angle
-
power angle
-
power flow angle
-
precession angle
-
preset diggings
-
pressure angle
-
projection angle
-
pull-down angle
-
radiation angle
-
rake angle
-
ray angle
-
reciprocal angle
-
reclining seat angle
-
reentering angle
-
reentrant angle
-
reference angle
-
reflex angle
-
regular polyhedral angle
-
relief angle
-
retard angle
-
right angle
-
right deflection angle
-
ripper tilt angle
-
rise-of-floor angle
-
rocking angle
-
roll angle
-
rotation angle
-
rotor coning angle
-
round angle
-
rudder angle
-
running pitch angle
-
safety guard angle
-
salient angle
-
scanning angle
-
scan angle
-
scattering angle
-
screen angle
-
screening angle
-
search angle
-
seat angle
-
shadow angle
-
shearing angle
-
shooting angle
-
shutter aperture angle
-
shutter angle
-
side clearance angle
-
side cutting edge angle
-
side rake angle
-
side sill angle
-
sideslip angle
-
sieve angle
-
sine-wave angle
-
slant angle
-
slewing angle
-
slip angle
-
solid angle of the sun
-
solid angle
-
space angle
-
spanning angle
-
spatial angle
-
spherical angle
-
spray angle
-
staff angle
-
steering angle
-
step angle
-
stiffening angle
-
straight angle
-
subtended angle
-
supplementary angles
-
swirl angle
-
switch angle
-
swivel angle
-
takeoff angle
-
takeoff noise angle
-
taking angle
-
taper angle
-
tape-wrap angle
-
tilt angle of-polarization ellipse
-
tilt angle
-
timing angle
-
toe-in angle
-
tool angle
-
tool cutting edge angle
-
tool included angle
-
torque angle
-
torsion angle
-
total angle of rotation
-
total internal reflection angle
-
track angle
-
track cant angle
-
track tilt angle
-
tracking error angle
-
transit angle
-
triangulation angle
-
truck swivel angle
-
up angle
-
valve face angle
-
vectorial angle
-
vertex angle
-
vertical angles
-
video record track angle
-
viewing angle
-
vision angle
-
wall angle
-
wave angle
-
wave-front angle
-
wheel alignment angle
-
wheel leaning angle
-
winding angle
-
wing setting angle
-
wing sweep angle
-
wiping angle
-
work angle
-
working angle
-
working lead angle
-
zenith angle
-
zero-lift angle
См. также в других словарях:
angle de Bragg — Brego kampas statusas T sritis fizika atitikmenys: angl. Bragg angle; Bragg reflection angle; glancing angle vok. Braggscher Reflexionswinkel, m; Braggscher Winkel, m; Glanzwinkel, m rus. брэгговский угол, m; угол Брэгга Вульфа, m; угол… … Fizikos terminų žodynas
angle de Bragg — Brego kampas statusas T sritis Standartizacija ir metrologija apibrėžtis Kampas, kuriuo rentgeno spinduliuotė, krisdama į kristalo plokštumą, sukelia difrakciją. Jis surandamas pagal formulę 2d sinϑ = nλ; čia ϑ – Brego kampas, λ – difraguojančios … Penkiakalbis aiškinamasis metrologijos terminų žodynas
Bragg'slaw — Bragg s law (brăgz) n. The fundamental law of x ray crystallography, nλ = 2dsinθ, where n is an integer, λis the wavelength of a beam of x rays incident on a crystal with lattice planes separated by distance d, and θis the Bragg angle. [After… … Universalium
Bragg angle — Brego kampas statusas T sritis fizika atitikmenys: angl. Bragg angle; Bragg reflection angle; glancing angle vok. Braggscher Reflexionswinkel, m; Braggscher Winkel, m; Glanzwinkel, m rus. брэгговский угол, m; угол Брэгга Вульфа, m; угол… … Fizikos terminų žodynas
Bragg reflection angle — Brego kampas statusas T sritis fizika atitikmenys: angl. Bragg angle; Bragg reflection angle; glancing angle vok. Braggscher Reflexionswinkel, m; Braggscher Winkel, m; Glanzwinkel, m rus. брэгговский угол, m; угол Брэгга Вульфа, m; угол… … Fizikos terminų žodynas
angle de la réflexion de Bragg — Brego kampas statusas T sritis fizika atitikmenys: angl. Bragg angle; Bragg reflection angle; glancing angle vok. Braggscher Reflexionswinkel, m; Braggscher Winkel, m; Glanzwinkel, m rus. брэгговский угол, m; угол Брэгга Вульфа, m; угол… … Fizikos terminų žodynas
angle de brillance — Brego kampas statusas T sritis fizika atitikmenys: angl. Bragg angle; Bragg reflection angle; glancing angle vok. Braggscher Reflexionswinkel, m; Braggscher Winkel, m; Glanzwinkel, m rus. брэгговский угол, m; угол Брэгга Вульфа, m; угол… … Fizikos terminų žodynas
Bragg angle — Brego kampas statusas T sritis Standartizacija ir metrologija apibrėžtis Kampas, kuriuo rentgeno spinduliuotė, krisdama į kristalo plokštumą, sukelia difrakciją. Jis surandamas pagal formulę 2d sinϑ = nλ; čia ϑ – Brego kampas, λ – difraguojančios … Penkiakalbis aiškinamasis metrologijos terminų žodynas
bragg reflection — ˈbrag , aa , ai noun Usage: usually capitalized B Etymology: after Sir William H. Bragg died 1942 and Sir William L. Bragg died 1971 English physicists : the action of a crystal in reflecting X rays or particle waves (as electrons or neutrons) in … Useful english dictionary
Bragg diffraction — (also referred to as the Bragg formulation of X ray diffraction) was first proposed by William Lawrence Bragg and William Henry Bragg in 1913 in response to their discovery that crystalline solids produced surprising patterns of reflected X rays… … Wikipedia
Bragg-Brentano — Diffractomètre Le diffractomètre est un appareil permettant de mesurer la diffraction d une onde sur une cible. Le terme est utilisé exclusivement pour la diffractométrie de rayons X. Les premiers diffractomètres utilisaient une pellicule… … Wikipédia en Français