asteroza + radiation   59

Material for New-Generation Atomic Reactors Developed in NUST MISIS
New steel-vanadium-steel layered composite might be good for nuclear reactor fuel rod tubes
russia  nuclear  fuel  rod  radiation  heat  resistant  steel  vanadium  composite  alloy  metal  metallurgy  materials  science  research  technology 
march 2019 by asteroza
Making new high performance rad hard computer designs. One is now being used for Lockheed LM50 SmartSat bus chassis core. Apparently powerful enough to run both SDR and a hypervisor for VM's and containers.
SHREC  space  high  performance  computer  computing  radiation  resistant 
march 2019 by asteroza
Temporary microglia-depletion after cosmic radiation modifies phagocytic activity and prevents cognitive deficits | Scientific Reports
New drug to treat GCR brain damage, but should be somewhat applicable to conventional brain radiation exposure?
GCR  brain  radiation  damage  repair  medicine  health  space 
may 2018 by asteroza
Bioengineer cats to change color due to radiation, like a living dosemeter/geiger counter using bioluminescence.
GMO  bioengineering  cat  raycat  bioluminescence  radioactivity  radiation  safety  Delicious 
april 2016 by asteroza
Attenuation efficiency of X-ray and comparison to gamma ray and neutrons in composite metal foams
Wonder what the secondary radiation from hits on the tungsten balls is like for high energy radiation?
tungsten  sphere  stainless  steel  metal  foam  radiation  materials  science  research  technology  shield  shielding  Delicious 
july 2015 by asteroza
The Impact of Gamma Radiation on Sediment Microbial Processes
Rad resistant bacteria more rad resistant than previously thought, may possibly be boosted by radiation while biologically processing soluble nuclear waste into insoluble forms.
extremophile  radiation  resistant  bacteria  biology  research  technology  nuclear  waste  remediation  Delicious 
may 2015 by asteroza
Cancer risk at low doses of ionizing radiation: artificial neural networks inference from atomic bomb survivors
Interesting new analysis which might prove linear-no-threshold models for radiation exposure may be inappropriate. But, this analysis is largely for prompt radiation sources, not long term exposure.
low  level  ionizing  radiation  LNT  exposure  model  analysis  neural  network  algorithm  medicine  health  nuclear  research  Delicious 
november 2014 by asteroza
Panasonic's robotic exoskeletons could help nuclear plant workers
ActiveLink's PLL-04 Ninja prototype exoskeleton suit, for leg/lower torso assist, might be used as the basis of a radiation armor support suit for Fukushima cleanup works. But wasn't Cyberdyne already doing that with a HAL suit? With upper arm assist?
japan  ActiveLink  Panasonic  PLL-04  ninja  lower  torso  leg  assist  exoskeleton  radiation  suit  support  Delicious 
june 2014 by asteroza
Compound Derived from Vegetables Shields Rodents from Lethal Radiation Doses
Possible additional compound to mix with iodine pills for post nuclear disaster treatment. Provides high gamma radiation protection somehow.
protection  defense  radiation  gamma  treatment  health  medicine  diindolylmethane  DIM  Delicious 
october 2013 by asteroza
Professor Yukio Hayakawa's Radiation Contour Map of the Fukushima I Nuke Plant Accident, Ver 7: "Contamination Seems to Coincide with Reactor Pressure Drop", Not with Explosions | EXSKF
Interesting radiation contour mapping work. Interesting commentary on time based changes in teh contour, heavily tying certain spreads to reactor pressure drops.
contour  radiation  japan  nuclear  map  fukushima  contamination  Delicious 
august 2013 by asteroza
All sizes | Chart of Electromagnetic Radiations | Flickr - Photo Sharing!
Via an unused LLNL back office, a pretty neat emag spectrum infographic poster, at ludicrous resolution (100+MB jpeg!)
huge  visualization  information  radiation  physics  spectrum  electromagnetic  poster  education  infoviz  infographic  reference  Delicious 
august 2013 by asteroza
Originally intended as a possible treatment for astronauts in a radiation environment. Which is basically anywhere without a magnetosphere.
RLIP76  protein  radiation  defense  countermeasure  medicine  health  treatment  biology  research  liposome  Delicious 
august 2012 by asteroza
Nanoscale Research Letters | Full text | Tailoring photonic metamaterial resonances for thermal radiation
This seems to use the same kind of tricks as those luminescent solar concentrator plates, that internally reflect captured light and convert the frequency internally to retransmit to edge PV modules. Just shifting down to IR. The interesting bit is the prevention of reradiation through the top surface, which provides the potential for solar thermal power generation without concentrating mirrors using not well aligned surfaces of panels manufactured using chip fabrication techniques.
TPV  selective  absorber  photonic  metamaterial  resonance  crystal  thermal  emission  radiation  reradiation  solar  IR  concentrating  thermophotovoltaic  materials  science  research  technology  nanotechnology  optics  Delicious 
december 2011 by asteroza
Japan firm unveils robot suit for nuclear workers
Congratulations Cyberdyne, you have now found the motherlode of government funding sources for development. Because who can really argue with increasing the safety of radiation workers by making a load bearing exoskeleton to carry that heavy tungsten rad shield? Now if they could only join the battery pack of HAL with those human cooling suits NASA made a while back for kids with body heat cooling disorders, you might have workers that won't keel over from heat stroke at Fukushima.
Cyberdyne  HAL  exoskeleton  robot  robotic  powered  suit  radiation  shield  vest  protection  defense  load  bearing  Delicious 
november 2011 by asteroza
App Store - Geiger Camera
May or may not be legit (theory may be sound, but execution...). Probably works for higher radiation counts, such as those near the Fukushima plant itself, but may not be that useful in the surrounding areas, even in so called "hotspots". But for $1, compared to $400 or more for the hard to get geiger counters, this may be a viable alternative for the masses.
iPhone  app  software  geiger  counter  camera  CMOS  sensor  gamma  xray  detection  radiation  Delicious 
september 2011 by asteroza
Revolutionary radiation-sensitive plastic (trademark "Scintirex") with a performance superior to plastic scintillators used for measuring radiation and enabling a major reduction in production costs : NIRS
Sintirex is a recycled PET plastic based plastic scintillator, which basically means the chunk of plastic glows in the dark if hit by radiation. So you put it in a sealed case with a simple optical sensor like a cheap CCD to make a crude but effective low cost radiation detector. Apparently it should be possible to make portable detectors that currently cost $500 for around $100 or less now.
japan  materials  science  research  technology  recycled  PET  plastic  scintillator  Sintirex  radiation  sensitive  flourescent  flourescence  low  cost  detector  sensor  Delicious 
august 2011 by asteroza
Laser_induced_fission_of_Th.pdf (application/pdf Object)
A variation on the accelerator driven thorium system theme, with a laser induced plasma pumping electrons into a tantalum target, dumping gamma (X-ray) into thorium. Rather than a traditional ADSR which fires electrons into a target for neutron spallation into thorium.
bremsstrahlung  radiation  photofission  thorium  xray  pulsed  laser  tartget  tantalum  fission  nuclear  physics  research  filetype:pdf  media:document  Delicious 
august 2011 by asteroza
Graphing Earthquake and Radiation Data in Japan
I wouldn't call this a real mashup, but someone has gone to the trouble of collating and graphing radiation and earthquake info into an easily understandable format. Why the hell doesn't the government/TEPCO do this, when some citizen can, instead of hiding and obscuring data in number heavy PDF's? Are they being deliberately obtuse to prevent easy information dissemination?
japan  tokyo  earthquake  2011  radiation  map  chart  graph  fukushima  data  mashup  information  Delicious 
march 2011 by asteroza
Radiation Remediation
It's like a Roomba for the Van Allen belts! Which actually has long term policy implications, much like orbital debris cleanup. This would potentially make very low thrust propulsion like Hall effect much more viable for the GTO market, compared to now where you need chemical, VASIMR, solar thermal, or nuclear thermal thrust levels to cut transit times. Won't do anything about getting cooked by hard solar wind and cosmic radiation, but that's always been a time/shielding critical issue anyways.
HiVOLT  tether  van  allen  radiation  belt  dispersal  spacecraft  system  electrostatic  particle  deflector  Delicious 
march 2011 by asteroza
etd.pdf (application/pdf Object)
Interesting foamed metal composite with materials penetrating the foam cells to provide radiation defense
materials  science  research  technology  foamed  metal  composite  radiation  shield  shielding  defense  lightweight  boron  water  filetype:pdf  media:document  Delicious 
may 2010 by asteroza
PROTOM INTERNATIONAL, INC. | Proton Therapy and Tomography Technology
claim a new compact proton synchrotron design licensed from the original russian research institute that developed it. Maybe a FFAG, based on the design shape?
compact  proton  synchrotron  medical  radiation  therapy  hardware  electronics  devices  physics  FFAG  Delicious 
may 2010 by asteroza
Next Big Future: Direct conversion of radiation into electricity using carbon nanotubes and a separate new approach to thermoelectrics
A direct nuclear radiation to electricity conversion cycle, using tiles covered in gold, and filled with a carbon nanotube and lithium hydride matrix. I think the carbon nanotubes are the conductors, I think.
direct  nuclear  radiation  electricity  conversion  cycle  gold  lithium  hydride  carbon  nanotube  tile  power  generator  green  energy  Delicious 
april 2009 by asteroza
A Research Program Nuclear Energy Conversion [abstract]
Use radiation to fluoresce a material, recover the photon energy with a wide bandgap solar cell. Simple semi-direct solid state electricity cycle with no moving parts. Interesting route is an RTG style plant with mirrors/fiberoptics feeding the solar array. Use natural case conductive cooling with a naturally decaying core rather than an active fission reaction. I wonder if you could increase the cycle efficiency with betavoltaics at the fluorescing material position? I wonder if you do some quantum dot well stuff to tune the light/photon outputs to better match the solar cells?
PIDEC  radiation  activated  fluorescent  material  wide  bandgap  solar  cell  nuclear  power  generator  cycle  green  energy  Delicious 
april 2009 by asteroza

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