Author Topic: AMS-2 (Alpha Magnetic Spectrometer)  (Read 48497 times)

Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #20 on: 07/20/2011 01:56 PM »
A great AMS-02 video:

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Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #21 on: 09/05/2011 05:45 PM »
From AMS via Twitter:

3.5 months onorbit we are still learning new things about operations. Large ISS radiators have more affect on AMS than originally thought. Only minor issue from radiators. All other operations are nominal. Potential smaller crew on ISS will not stop AMS science operations.
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Offline CP

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #22 on: 09/09/2011 10:44 AM »
Any details?

Offline rdale

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #23 on: 09/09/2011 11:36 AM »
Details about what?

Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #24 on: 09/10/2011 09:16 PM »
From ISS On-Orbit Status Report for 10/09/2011.

Weekly Science Update (Expedition Twenty-Eight -- Week 25)

AMS-02 (Alpha Magnetic Spectrometer): All AMS payload and laptop ops are nominal. The component that has been near its temperature limit is doing better, and AMS worked with JSC and MSFC flight control teams to reposition the STRRJ to determine the thermal affect on this component. When the STRRJ was positioned at 40 degrees so that it presented more surface area to that particular side of the AMS payload (and less deep space - much colder), the component warmed up. This was seen previously as the STRRJ transitioned from -8 to 25 degrees, and was confirmed again in this 25 to 40 deg transition.
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Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #25 on: 09/20/2011 05:30 PM »
An AMS update from @AMSISS via Twitter:

As of this morning, we are at 5,577,145,060 events (tracked particles) since we arrived on the ISS. Everything is operating as expected.
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Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #26 on: 09/29/2011 08:32 PM »
From @AMSISS via Twitter:

AMS exceeded 6 billion recorded events today!
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Offline Nomadd

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #27 on: 09/29/2011 08:52 PM »
From AMS via Twitter:

3.5 months onorbit we are still learning new things about operations. Large ISS radiators have more affect on AMS than originally thought. Only minor issue from radiators. All other operations are nominal. Potential smaller crew on ISS will not stop AMS science operations.

 It would be interesting to know if the effect from the radiators is a matter of miscalculation or of an actual unexpected effect on the particles themselves. It would be the difference between fine tuning and scientific data.

Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #28 on: 11/02/2011 08:42 PM »
Check out the new cosmic ray counter! :)

http://ams.nasa.gov
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Offline Moe Grills

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #29 on: 11/03/2011 08:34 PM »
Check out the new cosmic ray counter! :)

http://ams.nasa.gov


Cool!

Offline Tcommon

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #30 on: 11/04/2011 02:49 AM »
Check out the new cosmic ray counter! :)

http://ams.nasa.gov

where is the dark matter counter?

Offline rdale

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #31 on: 05/23/2012 07:27 PM »
International Space Medicine Summit 2012: Day 2 Part 6 -- Alpha Magnetic Spectrometer

May 19, 2012

Physicians and biomedical scientists gather to discuss space medicine research at this annual conference organized by the Baker Institute and Baylor College of Medicine.


Offline Danderman

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #32 on: 05/24/2012 12:56 AM »
Can anyone confirm that the ACOP system for AMS-02 didn't fly in the end (this was the onboard data recorder with 2xRAID1 arrays) and was instead replaced with nothing more than a Thinkpad with an extra HDD. This did fly, but I'm not sure if it was a replacement for ACOP, or in addition to.

Thanks.

I assumed that ACOP didn't fly because it required a mid deck locker space that sort of disappeared from the manifest.

Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #33 on: 07/25/2012 02:01 PM »
AMS experiment marks one year in space

Geneva, 25 July 2012. CERN today marked the Alpha Magnetic Spectrometer's first year in space with a visit from the crew of the shuttle mission, STS-134, that successfully delivered AMS to the International Space Station (ISS) just over a year ago. Launched on 16 May last year, the detector was already sending data back to Earth by 19 May, and since then, some 17 billion cosmic-ray events have been collected. Data are received by NASA in Houston, and then relayed to the AMS Payload Operations Control Centre (POCC) at CERN for analysis. A second POCC has recently been inaugurated in Taipei.

"The AMS detector has so far achieved everything we expected of it," said Nobel laureate and AMS spokesperson Samuel Ting. "That's a great credit to the team that put the detector together, and the team that installed it on the ISS. We're honoured to have them here today to celebrate AMS's fist year in space."

The STS-134 mission was the last flight for space shuttle Endeavour, crewed by commander Mark Kelly, pilot Gregory H. Johnson and mission specialists Michael Fincke, Greg Chamitoff, Andrew Feustel and European Space Agency (ESA) astronaut Roberto Vittori. The AMS detector's first year in space has been a learning curve: data have been used to calibrate the detector and fully understand its performance in the extreme thermal conditions encountered in space.

"Among AMS's achievements is that for the first time, we've been able to identify electrons with energies exceeding 1 TeV before they enter the atmosphere," said Ting. "This holds out great promise for the AMS research programme that's now getting underway."

Kelly, along with Ting, CERN Director-General Rolf Heuer and ESA Director for Science Alvaro Giménez Cañete held a press conference at the AMS POCC before a tree-planting ceremony at which a commemorative plaque was unveiled in the lawn outside the POCC. In the afternoon, the astronauts will give a presentation for over 200 undergraduate summer students from 71 nations who are currently at CERN to get a taste of life in research.

"It's a real privilege to visit CERN today, and we're proud to have played a part in launching the AMS experiment's fascinating research programme," said Kelly. "Meeting some of the young summer students who represent the future of science and engineering was a highlight."

http://press.web.cern.ch/press/PressReleases/Releases2012/PR20.12E.html
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Offline IRobot

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #34 on: 07/25/2012 10:25 PM »
I really hope that the AMS will debunk the dark matter theory. I can't understand how so much time and money is spent on a single theory to explain mass discrepancy! Even something as recent estimates of inter stellar density reduce the "need" for unseen matter.

Offline hanschristian

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #35 on: 07/26/2012 01:25 PM »
I really hope that the AMS will debunk the dark matter theory. I can't understand how so much time and money is spent on a single theory to explain mass discrepancy! Even something as recent estimates of inter stellar density reduce the "need" for unseen matter.

well in that case, theory debunked, or proven, I'll be happier to donate some of my hard earned money to spend it "on a single theory to explain mass discrepancy"

here's one that is very happy that the AMS is up there...
« Last Edit: 07/26/2012 01:26 PM by hanschristian »
The Sky is NOT the Limit...

Offline bolun

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #36 on: 08/09/2012 03:37 PM »
http://www.esa.int/esaHS/SEM54OSX55H_index_0.html

Quote
In one year, AMS-02 has recorded more than 17 billion particles.

The huge amount of information is sent via satellite to the USA and then through optical cables to the control centre run by the European Organization for Nuclear Research, CERN, in Switzerland.
 
Everything is stored for analysis. Every hour, the centre receives 240 gigabytes of information for archiving – about the size of a typical consumer hard disk.

The control centre also monitors the instrument’s vital signs, keeping its temperature stable despite being subjected to its surroundings swinging between –30ºC to +40ºC in the harsh space conditions.

Subatomic particles are extremely small and proving their existence requires extreme precision. AMS-02 is constantly calibrated to guarantee true readings. For example, the particle detector used to tell electrons from protons can be adjusted by as little as three-thousandths of a millimetre.
 
At this level of accuracy, natural events such as solar flares can add errors and the mission controllers at CERN need to allow for them during calibration.

The centre never closes: “Scientists are working round the clock looking at particles that affect us all the time,” says Maurice Bourquin, professor at the University of Geneva and founding father of AMS-02.

The control centre was formally opened on 25 July by the NASA astronauts who flew AMS to the Station. They unveiled a plaque and planted a tree with principal investigator Prof. Samuel Ting and CERN director Rolf-Dieter Heuer to mark the occasion.

Offline IRobot

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #37 on: 08/09/2012 10:36 PM »
Check out the new cosmic ray counter! :)

http://ams.nasa.gov

where is the dark matter counter?
It's the buffer holding "zero".

Offline Space Pete

Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #38 on: 10/01/2012 05:01 PM »
AMS HADRONIC TOMOGRAPHY
September 29th, 2012

Operating in the International Space Station since May 2011, AMS is performing very accurate measurements of cosmic ray (e.g. Proton and Helium nuclei) with unprecedent sensitivity.

This picture represents a “tomographic” reconstruction of the AMS top-of-instrument material obtained using the Proton-to-Helium flux ratio.
Tiny changes of the interaction probabilities of these nuclei with different materials are used to trace the material inhomogenities. Detector elements such as screws, electronics boards, and mechanical interfaces are clearly recognizable.

http://www.ams02.org/2012/09/ams-hadronic-tomography/
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Offline Big Al

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Re: AMS-2 (Alpha Magnetic Spectrometer)
« Reply #39 on: 11/23/2012 12:44 AM »
So to sort this out, the dark matter recorder hasn't recorded any thing. So the dark matter end of things is nothing, on to the next theory.
So am I right adout this ? Nobody has come out and said this, but I assume it's true

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