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Related Concept Videos

Radiation Pressure: Problem Solving01:09

Radiation Pressure: Problem Solving

The radiation pressure applied by an electromagnetic wave on a perfectly absorbing surface equals the energy density of the wave. The wave's momentum also gets transferred to the surface when an electromagnetic wave is entirely absorbed by it. The rate at which momentum is transmitted to an absorbing surface perpendicular to the propagation direction equals the force on the surface.
The average value of the rate of momentum transfer divided by the absorbing area represents the average force per...
Maxwell-Boltzmann Distribution: Problem Solving01:20

Maxwell-Boltzmann Distribution: Problem Solving

Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
Ampere-Maxwell's Law: Problem-Solving01:17

Ampere-Maxwell's Law: Problem-Solving

A parallel-plate capacitor with capacitance C, whose plates have area A and separation distance d, is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0. What is the displacement current between the capacitor plates at time t? From the properties of the capacitor, what is the corresponding real current?
To solve the problem, we can use the equations from the analysis of an RC circuit and Maxwell's version of Ampère's law.
For the first part of the problem,...
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in the...
Radiation: Applications01:17

Radiation: Applications

The average temperature of Earth is the subject of much current discussion. Earth is in radiative contact with both the Sun and dark space; it receives almost all its energy from the radiation of the Sun and reflects some of it into outer space. Dark space is very cold, about 3 K, so Earth radiates energy into it. For instance, heat transfer occurs from soil and grasses, the rate of which can be so rapid that frost can occur on clear summer evenings, even in warm latitudes.
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Related Experiment Video

Updated: Jun 24, 2026

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

Hybrid active-passive Galactic Cosmic Ray simulator: In-silico design and optimization.

L Lunati1, E Pierobon2, U Weber3

  • 1Biophysics Department, GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, 64291, Darmstadt, Germany; Institute of Condensed Matter Physics, Technische Universität Darmstadt, Hochschulstr. 6, 64289, Darmstadt, Germany.

Life Sciences in Space Research
|June 22, 2026
PubMed
Summary
This summary is machine-generated.

New simulators at GSI Helmholtzzentrum für Schwerionenforschung now offer realistic space radiation environments. This advancement aids in better assessing radiation risks for deep-space missions, improving hardware testing and life-science research.

Keywords:
GCRGalactic Cosmic RaysGround-basedMonte CarloSpace radiation

Related Experiment Videos

Last Updated: Jun 24, 2026

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
06:14

Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface

Published on: July 30, 2020

Area of Science:

  • Space science
  • Particle physics
  • Radiation biology

Background:

  • High-energy heavy-ion accelerators simulate space radiation for research and hardware testing.
  • Traditional monoenergetic beams lack the mixed-field complexity of actual space radiation.
  • Realistic simulation is crucial for deep-space mission risk assessment and countermeasure development.

Purpose of the Study:

  • To present the design, optimization, and benchmarking of a new hybrid active-passive Galactic Cosmic Ray (GCR) simulator at GSI.
  • To introduce a computationally optimized phase-space particle source for Geant4 simulations.
  • To provide advanced space radiation simulation capabilities in Europe.

Main Methods:

  • Development and optimization of a hybrid active-passive GCR simulator.
  • In-silico benchmarking of the simulator's performance.
  • Creation of a phase-space particle source for Geant4 simulations.

Main Results:

  • Successful design and optimization of GSI's hybrid GCR simulator.
  • Validation of the simulator through in-silico benchmarking.
  • Availability of an optimized Geant4 particle source for external users.

Conclusions:

  • GSI's new simulator provides a more realistic analog of the space radiation environment.
  • The developed tools enhance capabilities for space radiation research and mission planning.
  • These advancements support future deep-space exploration by improving risk assessment and hardware validation.