Test 3: Diagram & Table
Card Set Information
Test 3: Diagram & Table
Test 3: Diagram 6-1 & Table 6-3
List the half-life, source form and applications of Cesium 137:
LDR intracavitary, interstitial
List the half-life, source form and applications of Iridium 192:
LDR interstitial, HDR interstitial & intracavitary
List the half-life, source form and applications of Cobalt 60:
List the half-life, source form and applications of Iodine 125:
List the half-life, source form and applications of Palladium 103:
List the half-life, source form and applications of Gold 198:
List the half-life, source form and applications of Strontium 90:
Superficial ocular lesions (pterygium)
List the half-life, source form and applications of Strontium 89:
Diffuse bone metastases
List the half-life, source form and applications of Iodine 131:
1. Gridded electron gun
2. Energy switch
3. Standing wave accelerator guide
4. Focal spot size
5. Steering system
6. Achromatic dual-plane bending magnet
7. 10 port carousel w/ scattering foils/flattening filters
8. Ion chamber
9. Asymmetric jaws
Gridded Electron Gun
*Controls dose rate
*Permits beam control for dynamic treatment because gun can be gated
Provides energies within the full therapeutic range
Ensures optimal performance & spectral purity
Standing Wave Accelerator Guide
Maintains optimal bunching for different acceleration conditions, providing high dose rates, stable dosimetry, and low stray radiation.
Transport system minimizes power and electron source demands.
Focal Spot Size
Held constant by the bending magnet.
Ensures optimal image quality for portal imaging.
Radial and transverse steering coils and a real time feedback system
ensure beam symmetry
to within ±2% at all gantry angles.
Achromatic Dual-Plane Bending Magnet
Ensures exact replication of the input beam for every treatment
10 Port Carousel w/ Scattering Foils & Flattening
Introduced to the path of the photon beam to evenly distribute the energy of the photon beam.
: Spreads the electron beam to achieve uniform electron fluence across the collimated area.
Impervious to temperature & pressure
Monitors beam dosimetry to within 2%
Provide beam definition of symmetric or asymmetric fields
standing wave accelerator guide
maintains optimal _________ for different _____________, providing high _________, stable ________, and low __________.
high Dose Rates
low Stray Radiation
contains radial and transverse _____________ and a real time ________ system ensure ___________ to within +/- 2% at all gantry angles.
is introduced into the path of the photons to ________ distribute the _________ of the photon beam.
is used to ________ the electron beam & achieve uniform electron _________ across the _________ area and consists of thin metallic material, usually ________.