Loading...
*  Neutron radiation
Consequently, in living tissue, neutrons have a relatively high relative biological effectiveness, and are roughly ten times ... Neutrons readily pass through most material, but interact enough to cause biological damage. The most effective shielding ... more effective at causing biological damage compared to gamma or beta radiation of equivalent energy exposure. These neutrons ...
*  Relative biological effectiveness
In radiobiology, the relative biological effectiveness (often abbreviated as RBE) is the ratio of biological effectiveness of ... The relative biological effectiveness for radiation of type R on a tissue of type T is traditionally defined as the ratio R B E ... In 1931, Failla and Henshaw reported on determination of the relative biological effectiveness (RBE) of x rays and γ rays. This ... Typically the evaluation of relative biological effectiveness is done on various types of living cells grown in culture medium ...
*  Roentgen equivalent man
... the conversion depends on relative biological effectiveness (RBE). The rem is defined since 1976 as equal to 0.01 sievert, ... and began recommending values of relative biological effectiveness (RBE) for various types of radiation.[citation needed] In ... The definition was refined in 1950 as "that dose of any ionizing radiation which produces a relevant biological effect equal to ... The acronym is now a misleading historical artifact, since 1 roentgen actually deposits about 0.96 rem in soft biological ...
*  Miriam Posner Finkel
Finkel, M. P. (1953). Relative biological effectiveness of radium and other alpha emitters in CF No. 1 female mice. ... Finkel, M. P. (1953). Relative biological effectiveness of radium and other alpha emitters in CF No. 1 female mice. ... Finkel, M. P. (1956). Relative Biological Effectiveness of Internal Emitters 1.Radiology. 67(5): 665-672. Finkel, M. P., Lisco ... contributions to several radiological health standards including work on the basis of relative biological effectiveness for ...
*  RBE (disambiguation)
RBE is relative biological effectiveness, a health physics concept. RBE may also refer to: Rock County Airport, Nebraska, ...
*  Radiation
See relative biological effectiveness for a discussion of this. Examples of highly poisonous alpha-emitters are all isotopes of ... Although present in space, this part of the UV spectrum is not of biological importance, because it does not reach living ... Nevertheless, different biological effects are observed for different types of non-ionizing radiation. Even "non-ionizing" ... However, the effects of non-ionizing ultraviolet on chemistry and the damage to biological systems exposed to it (including ...
*  F-factor (conversion factor)
Gray (unit) Sievert Equivalent dose Relative biological effectiveness Bushberg et al., 2002. The Essential Physics of Medical ...
*  Linear energy transfer
January 2003). "Relative biological effectiveness (RBE), quality factor (Q) and radiation weighting factor (Wr)". Annals of the ... Many studies have attempted to relate linear energy transfer to the relative biological effectiveness (RBE) of radiation, with ... If a microscopic defect can cause larger-scale failure, as is the case in biological cells and microelectronics, the LET helps ... Because of their low mass relative to atoms, they are strongly scattered by nuclei (Coulomb or Rutherford scattering), much ...
*  SLX4
Liu, Q; Underwood, TA (1 May 2016). "Disruption of SLX4-MUS81 Function Increases the Relative Biological Effectiveness of ...
*  Megavoltage X-rays
... also have higher relative biological effectiveness than orthovoltage x-rays. These properties help to make ... Amols, H. I.; Lagueux, B.; Cagna, D. (January 1986). "Radiobiological Effectiveness (RBE) of Megavoltage X-Ray and Electron ...
*  George Samuel Hurst
Around 1955, Hurst teamed with A.C. Upton, F.P. Conte and W.A. Mills to look at the relative biological effectiveness (RBE) ... Upton, A. C., Conte, F. P., Hurst, G. S., & Mills, W. A. (1956). The relative biological effectiveness of fast neutrons, X-rays ... Upton, A. C., Conte, F. P., Hurst, G. S., & Mills, W. A. (January 1955). The Relative Biological Effectiveness of Fast Neutrons ... Upton, A. C., Christenberry, K. W., Melville, G. S., Furth, J., & Hurst, G. S. (1956). The Relative Biological Effectiveness of ...
*  Health physics
... relative biological effectiveness of the radiation). The sievert (Sv) is the SI unit of equivalent dose. Although it has the ... see table at Relative biological effectiveness#Standardization). This weighting factor is also called the Q (quality factor), ... Therefore, the equivalent dose was defined to give an approximate measure of the biological effect of radiation. It is ... of radioactive material Medical health physics Public information and communication involving radioactive materials Biological ...
*  Proton therapy
"Lung Cancer Cell Line Screen Links Fanconi Anemia/BRCA Pathway Defects to Increased Relative Biological Effectiveness of Proton ... An analysis published in 2003 determined the relative cost of proton therapy is approximately 2.4 times that of X-ray therapies ... A study in 2007 expressed concerns about the effectiveness of proton therapy for treating prostate cancer, but with the advent ... Goitein, M.; Jermann, M. (2003). "The Relative Costs of Proton and X-ray Radiation Therapy". Clinical Oncology. 15: S37-50. doi ...
*  Central nervous system effects from radiation exposure during spaceflight
High-LET radiation at doses that are below 0.5 Gy show greater relative biological effectiveness compared to low-LET radiation ... The relative effectiveness of different radiation types in producing emesis was studied in ferrets and is illustrated in figure ... 153 notes that: "Relative ROS levels were increased at nearly all doses (1 to 10 Gy) of Bragg-peak 250 MeV protons at post- ... Thus, biological research is required to establish risk levels and risk projection models and, if the risk levels are found to ...
*  Gioacchino Failla
Failla, G., and Henshaw, P.S. (1931), "The relative biological effectiveness of X-rays and gamma rays", Radiology (17): 1. ... Failla, G., "Ionization and its bearing on the biological effects of radiation", In Biological Effects of Radiation by B. M. ... Failla, G. (1941), "Biological effects of ionizing radiations", J. Appl. Phys. (12): 279. Evans, T.C., Slaughter, J.C., Little ... Wingate, C., Gross, W., and Failla, G. (1958), "Relative beta-ray energy loss per ion pair produced in water vapor and in air ...
*  Equivalent dose
... relative biological effectiveness of the radiation and modifies the absorbed dose to take account of the different biological ... It is derived from the physical quantity absorbed dose, but also takes into account the biological effectiveness of the ... ICRP has assigned radiation weighting factors to specified radiation types dependent on their relative biological effectiveness ... Although the CIPM definition states that the linear energy transfer function of the ICRU is used in calculating the biological ...
*  Radiobiology
This is due to the high relative biological effectiveness of alpha radiation to cause biological damage after alpha-emitting ... Laboratory Nuclear medicine Radioactivity in biology Radiology Radiophobia Radiosensitivity Relative biological effectiveness ... Biological samples can be irradiated using either a broad, uniform beam or using a microbeam, focused down to cellular or ... The activity of biological and astronomical systems inevitably generates magnetic and electrical fields, which can be measured ...
*  Management of prostate cancer
Also, neutrons have a higher relative biological effectiveness (RBE) for slow-growing tumours than X-rays, allowing for an ... The relative risk reduction was 57.7%. For patients at similar risk to those in this study (35.5% of patients had positive ... The relative merits of RALP and potential benefit versus open radical prostatectomy is currently an area of intense research ... Estrogens have been found to be equivalent in effectiveness to androgen deprivation therapy with castration and nonsteroidal ...
*  Rad (unit)
... was the absorbed energetic dose to tissue before factoring in relative biological effectiveness. The rep has variously been ...
*  Alpha decay
RBE relative biological effectiveness quantifies the ability of radiation to cause certain biological effects, notably either ...
*  Radiobiology evidence for protons and HZE nuclei
Relative biological effectiveness factors comparing gamma rays to HZE ions were measured in mice or rats for tumors of the skin ... Studies with protons and HZE nuclei of relative biological effectiveness for molecular, cellular, and tissue endpoints, ... and that relative biological effectiveness factors may, in principle, be indefinable or a faulty concept. Recent studies have ... "Biological Effectiveness of Accelerated Particles for the Induction of Chromosome Damage Measured in Metaphase and Interphase ...
*  Neutron detection
Neutron detectors used for radiation safety must take into account the relative biological effectiveness (i.e., the way damage ... The effectiveness of any detection analysis can be seen by its ability to accurately count and separate the number of neutrons ... Also, the effectiveness of the second and third steps reveals whether event rates in the experiment are manageable. If clear ...
*  Targeted alpha-particle therapy
... and relative biological effectiveness (RBE). Beta particle (β) emitters such as Yttrium-90 can travel considerable distances ... Expert Opinion on Biological Therapy. 16 (8): 1035-1047. doi:10.1080/14712598.2016.1185412. PMC 4940885 . Seidl, Christof; ...
*  Committed dose
Some have hypothesized that alpha's high relative biological effectiveness might be attributable to cell's tendency to absorb ... committed dose must include corrections for the relative biological effectiveness of the radiation type and weightings for ... The dose rate from a single uptake decays over time due to both radioactive decay, and biological decay (i.e. excretion from ... though an elevated effectiveness can also be observed for external alpha radiation in cellular studies. As in the calculations ...
*  Health threat from cosmic rays
Relative biological effectiveness (RBE) depends on radiation type described by particle charge number, Z, and kinetic energy ... The quantitative biological effects of cosmic rays are poorly known, and are the subject of ongoing research. Several ... Tobias, C.A.; Budinger, T.F.; Lyman, J.T. (1973). "Biological effects due to single accelerated heavy particles and the ... Experiments in 2007 at Brookhaven National Laboratory's NASA Space Radiation Laboratory (NSRL) suggest that biological damage ...
*  New Delhi metallo-beta-lactamase 1
It has been shown to be effective in mice and rats but has not yet been tested in humans for safety or effectiveness. In ... The patients or their relatives never travelled India in the last decade. In August 2010, a chemical compound GSK 299423 was ... August 2010). "Emergence of a new antibiotic resistance mechanism in India, Pakistan, and the UK: a molecular, biological, and ...
*  List of MeSH codes (G03)
... relative biological effectiveness MeSH G03.850.810.300 --- radiation effects MeSH G03.850.810.300.360 --- radiation injuries ... biological MeSH G03.850.780.200.650.700 --- rodent control MeSH G03.850.780.200.650.850 --- tick control MeSH G03.850.780.200. ...