Quiz 1 Flashcards
JRCERT
Joint Review Committee in Education of the Radiologic Technologies
accrediting body
ASRT
American Society of Radiologic Technologists
education guidelines
ARRT
American Registry of Radiologic Technologists
certification and registration
Accredidation
clear statement of objectives, a directed self-study, onsite evaluation of peers, decision by an independent commission
Competence
quality of being functional adequate in performing the tasks and assuming the role of compliance specified position with the requisite knowledge, ability, capability, skill, judgment, attitudes, and values
Certification
grants recognition to individual who has met qualification specified by agency
Licensure
individual allowed to engage in an occupation with minimal degree of competency necessary to ensure that the public health, safety, and welfare are reasonably well protected
Certification program
certificate upon completion, then petitions the ARRT, and NYSDOH for registration and state licensure
Didactic learning
formal classroom
Clinical learning
supervised experience in selected real life situations
Proficiency
quality or state of expertness and adeptness, a quality or state of being well advanced in an occupation, field of knowledge, or art
gives dimension to the concept of competence
Quality
degree of excellence of conformity to a standard
Standard
established by authority or general consent as a model or example to be followed
Supervised practice
learning experiences associated with activities in selected real life situations that enable the students to apply knowledge, develop and retain skills, and develop professionally, under appropriate supervision
Sagittal
left and right
Transverse (axial)
sup and inf
Coronal
ant and post
SAD
source to axis distance
SSD
source to skin distance
Isocenter
imaginary point in space; axis of rotation of gantry and collimator
Isocentric technique
patient is setup with the same SAD for all fields. The SSD will continually change but the SAD and iso are fixed
POP
parallel opposed
coplanar beams
entrance and exit on same plane and overlap
non-coplanar beams
CAX of beams do not overlap
SDD
source to diaphragm distance
STD
source to target distance
ODI
optical distance indicator
OBI
on-board imaging
MLC
multileaf collimator
DMLC
dynamic multileaf collimator
MU
monitor unit
depth
distance beneath the skin surface where the prescribed dose is to be delivered
Separation
measurement of patient thickness from the point of beam entry to point of beam exit
Gy
Gray, unit of absorbed dose
cGy
1/100th of a Gy
IGRT
image guided radiation therapy
EBRT
external beam radiation therapy
PSA
patient support assembly (couch)
R&V
record and verify
EPID
electronic portal imaging device
IFD
intra-field distance (separation)
TSEB
total skin electron beam
BID
twice a day
TID
three times a day
Dose
energy absorbed per unit mass
SRS
stereotactic radiosurgery
Cerrobend
bismuth, lead, tin, cadmium
Inverse square law
when you double your distance from a radioactive source, your exposure is 1/4 the original amount. Triple=1/9
LET
linear energy transfer
the energy lost per unit distance as an ionizing particle travels through a material
higher LET = more biological damage
Gamma rays
photons emitted from a nucleus
X-rays
manmade photons from linac
Exposure
the amount of ionization produced by photons in AIR per unit mass of AIR
Absorbed dose
energy absorbed per unit mass of any material
rad, Gy
Dose equivalent
takes into account the fact that different types of radiation produce different amounts of biological damage
