The Roadmap
| |
start date |
testing |
finished |
status |
| power supply (transformer) |
JAN-2004 |
FEB-2004 |
- |
closed |
| power supply (module) |
SEP-2005 |
SEP-2005 |
SEP-2005 |
closed |
| vacuum |
- |
- |
- |
open |
| electronics (prototype) |
11-JUN-2004 |
19-JUN-2004 |
- |
closed |
| electronics |
08-APR-2006 |
- |
- |
open |
| detector (prototype) |
13-MAR-2004 |
13-MAR-2004 |
- |
closed |
| detectors (HV-grid) |
09-JAN-2006 |
09-JAN-2006 |
02-APR-2006 |
closed |
| detectors |
4/5-MAR-2006 |
- |
02-APR-2006 |
closed |
UPDATE: 19-JUN-2004: FIRST MUONS DETECTED!!! :-)
I hooked up 2 Geiger Müller Tubes on the power supply,
using the new coincidence circuit and had a very successful first run.
Based on visual observation of the LEDs:
• 1 muon every 5 to 15 seconds
• background of > 60 per minute
Both tubes: CK1049 @ about 900V
UPDATE: 14-MAR-2004: The power supply is working fine - just needs a housing. I did some testing with
a prototype detector today (normal air pressure inside the detector). At about 1200V it starts to register
counts and at about 1500V secondary effects start. I use a 10MOhm resistor for R3, R1 = 120kOhm, without the
zener-diode directly to the 555 mono-flop (see Electronics).
Links
Cosmic Ray Telescope @ sciam.com
Cosmic Ray Telescope with Scintillators and PMT's
An Affordable Particle Detector for Education
with Resistive Plate Chamber (RPC)
Cosmic Ray Detector @ pari.edu
SLAC's Online Cosmic Ray Detector
Oulu Cosmic Ray Station
Moscow Neutron Monitor
ECRS 2004 - 19th European Cosmic Ray Symposium -
Aug. 30th - Sept. 3rd 2004, Florence/Italy
ICRC 2005 - 29th International Cosmic Ray Conference - Aug. 3rd - 11th, 2005 - Pune, INDIA
Earth Magnetometer
Jupiter Radio Astronomy
Last-Modified: Fri, 07 Apr 2006 15:05:08 GMT
Be very careful when handling high voltages!
cosmicrays.org cannot be held liable for damage of any sort!
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