This type of radiation therapy unit deals with photon energies of 150-500kV
What is orthovoltage
100
This is the approximate lifetime of a hydroxyl radical
What is 10 ^ -9 SECONDS
100
150 MeV protons have an LET of approximately this (within 1 kEV/um)
What is 0.5keV/um
100
gamma-H2AX assay performed at this time point after radiation is an indicator of radiation sensitivity.
What is 24 hours
100
If one were to be interested in measuring single strand breaks, the appropriate pH of the assay would be this
What is alkaline
200
This type of radiation generating unit deals with Xrays of energies 50-150kV with a typical SSD of 15-20cm
What is Superficial
200
The approximate lifetime of DNA radicals produced in therapeutic radiation is this
What is 10 ^ -5 sec
200
2.5 MeV alpha particles have an approximate LET of this (within 20)
What is 155 keV/um
200
compared to enzymes that remove nucleotides from within DNA strands, this type of enzyme removes nucleotides from the ENDS of DNA strands
What is exonuclease
200
A neutral commet assay measures this typeof DNA damage
What is DSB
300
This radiation therapy unit deals with energies of 40-50kVP with typical SSD of about 5cm
What is Contact Therapy
300
The average half life can be obtained by multiplying the half life by this number
What is 1.44
300
250 kV xrays have LET value of approximately this value (within 1)
What is 2 keV/um
300
The minimum dose that can be detected through scoring dicentric chromosomes is roughly ___
What is 0.25Gy
300
A northern blot is a means to study gene expression by detecting this in a sample.
What is RNA
400
In a conventional linac, this component is responsible for producing microwaves used to accelerate electrons
What is Magnetron
400
1 GeV Fe ions have an LET of 143 keV/um which is similar to this other type of high LET radiation
What is alpha particle. a 2.5MeV alpha particle has LET of 166
400
This term refers to a four armed aberrant chromosome probably formed by unresolved combination between homologous chromosomes
What is quadriradial
400
This molecular technique is used to detect specific DNA sequences by combining transfer of electrophoresis separated DNA fragments to a filter membrane and subsequent fragment detection by probe hybridization
What is Southern Blot
500
The Co-60 used in Cobalt units is generated by nuclear reactors by bombarding what element with neutrons
What is Co-59
500
For the same type of particulate radiation, as you increase the energy, you expect this change in LET.
What is decrease
500
These residues are expressed on the outer plasma membrane to help recruit phagocytes to engulf apoptotic cells
What is phosphatidylserine.
500
This "blot" will analyze protein post translational modifications such as lipids and glycoconjugates.