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I couldn’t find depleted uranium on ebay, so I’ve ordered some Plutonium instead – the sellers assure me it is very dense – it was either that or Polinium! Sent: 30 December 2023 17:44 To:

I suggested depleted U as an alternative to Pb to cut out stray backgrounds?

Having tried 1cm and 3cm of lead today, I now have all the lead I have under the detectors - not quite the 5cm I understand needed to completely isolate detectors from ground-sourced muons but does

Thanks Andrew. I have 3kg of lead. Just finished first test - ca. 1cm lead = no distinguishable change in muon rate today from before lead used (0.140 to 0.134 but I doubt that I significant). Next

It will depend how thick it is! If it is only a thin sheet, I would expect the detection rate to increase. Sent: 29 December 2023 13:34 To: [email protected]; [email protected] Subject:

I have just obtained some scrap lead and placed it under the LRO muon detectors to see what difference if any this makes to detection rates. Andy Sent from Outlook for Android<https://aka.ms/AAb9ysg>

Andrew & Martin share endeavours with home built instruments for Radio Astronomy. The Zoom link will be sent out on Thursday 4th Jan. January 5th 19:30 GMT (19:30 UTC) *Andrew Thornett* ~o~ *Martin

Thanks Martyn, I'll contact you tomorrow... Sent from Outlook for Android -- ??? Paul Hearn ?? paul@... ?? RA Section Director ??

Oops, sorry should be DXF.. -- ???? Paul Hearn? ??? paul@... ??? ?RA Section Director? ???

As yo may know UKRAA is run by volunteers, currently we are looking for a someone make a simple edit to a DFX file.? If you have the skill and the time please contact Paul Hearn for the detail of

Dear Colleagues, Merry Christmas and a better 2024 with Peace, health and Hope ! José de Almeida // P Please consider the environment before printing this document ???????? Jose' de Almeida?

And a wonderful New Year for 2024, Andrew LICHFIELD RADIO OBSERVATORY www.astronomy.me.uk

Thanks David. The response below has just come through from Dr Axani of CosmicWatch and might interest you. Andy Thanks to those who’ve sent responses to my queries re rates – the following has

Andy, I did a quick and dirty calculation on a short file produced by my CRD. I am probably getting a rate of about 0.04 events/second, which is a bit less than I expected, but that rate has been

Hi All, When I first got my muon detectors from UKRAA few weeks back I seemed to be getting 1.5 muons per second, although I am uncertain now whether I had properly set up coincidence mode. Now I am

For those of you using muon detectors, the following might interest you:

Dear All, This new group will be holding its first online meeting via Microsoft Teams on 21/1/2024. Although it is under the auspices of the Astronomical Society of Penang, we would like to extend an

Silly question perhaps, or perhaps it does not matter, which of slave or master muon detector should sit on top of other? I can't find it written anywhere in the CosmicWatch website! Andy

Hello Folks I have had to point the antenna of the NW Hampshire receiver ( https://ukmeteorbeacon.org/beaconclient/ ) away from the direct heading to the beacon due to strong local interference from

Hi John Your capture is very interesting - it's a long time since I have seen such a long period of reflection. This is unlikely to be just a meteor trail AFAIK. It will likely be a meteor trail