✦ SCIENTIFIC INSTALLATIONS / FIELD OBSERVATORIES
TECHNICAL EXHIBIT · 01INTERACTIVE 3D
PARTICLE ASTROPHYSICS / EXPERIMENTAL METHODS

When the sky becomes a detector.

Explore the anatomy of a distributed cosmic-ray array. Reveal detector layers, separate assemblies, and examine how nanosecond timing can encode an incoming shower's direction.

AURORA STRATA-17
Air-shower
observatory
ILLUSTRATIVE ENGINEERING STUDY
LIVE EXHIBIT / COMPLETE ASSEMBLY
XYZISOMETRIC
EXHIBIT MODEL / NOT TO SCALE
DRAG TO ORBIT · SCROLL TO ZOOM · CLICK A PART TO INSPECT
DETECTOR SIGNAL PATH STRUCTURE
INITIALIZING ENGINE
FRONT TRAVEL DELAY · ILLUSTRATIVE Δt = B sin θ cos φ / c
—ns
Engine — · independent check —
TIMING ANGULAR UNCERTAINTY · ILLUSTRATIVE σθ ≈ cσt / B cosθ
—deg
Illustrative small-angle estimate
PLANE-WAVE CROSSING · ILLUSTRATIVE T = (max ti − min ti)
—ns
Across all nine stations
THE SCIENCE — OPEN THE MODEL ASSUMPTIONS+

How the instrument works

Secondary particles in an extensive air shower deposit energy in layered scintillators. Photodetectors register light, and independently synchronized station clocks enable relative hit timing. Several stations constrain the direction of an approximately planar shower front.

tᵢ = (xᵢ sinθ cosφ + zᵢ sinθ sinφ) / c

Position in metres, θ zenith, φ azimuth; tᵢ seconds relative to the array centre. c = 299,792,458 m/s (textbook vacuum speed of light). This is an idealized plane-front relation, not measured particle timestamps.

Δtₓ = B sinθ cosφ / c

B is the east–west baseline, 24 m (illustrative). The engine calculates two station timestamps independently; the separate analytic expression is shown beside the engine result.

σθ ≈ c σₜ / (B cosθ)

A small-angle, one-dimensional illustrative estimate, valid away from the horizon and for small timing errors. The user-selected σₜ is an illustrative single-baseline timing uncertainty. It does not represent a full detector fit, shower fluctuations, or an instrument performance guarantee.

Genuine scientific features

Extensive air showers, scintillation, silicon light detection, time synchronization and relative-arrival-time inference.

Engineering-inspired reconstruction

Inspectable layered detectors, light guides, readout crates, cable trays, service platforms and distributed acquisition.

Simplified educational representation

Flat shower front; air-shower development, stochastic detector responses, wavefront curvature, scattering, atmospheric effects and reconstruction biases omitted.

Speculative design elements

Original enclosure geometry, modular gantry arrangement, surface markings and exhibit lighting have no reference-facility specifications.

The moving particle tracks and detector flashes are illustrative animation, not a validated Monte Carlo, shower simulation, or time-scaled acquisition replay. All device dimensions and timing settings are illustrative unless explicitly labelled textbook.

Illustrative design, not affiliated with any real institution or manufacturer.

Made with 🤖 ChatGPT · Three.js