John Larkin
Guest
Fri Jan 27, 2012 8:36 pm
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They haven't decided on pricing yet. I sure hope they are closer to
$50 than to $500.
John
Jon Elson
Guest
Fri Jan 27, 2012 11:21 pm
John Larkin wrote:
Quote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They haven't decided on pricing yet. I sure hope they are closer to
$50 than to $500.
Doesn't appear to be terribly new, that announcement is from
2010. Knowing Hamamatsu, $50 sounds very optimistic. I'd guess
a couple hundred $ each.
Jon
John Larkin
Guest
Sat Jan 28, 2012 1:09 am
On Fri, 27 Jan 2012 15:37:39 -0800 (PST), Bill Sloman
<bill.sloman_at_ieee.org> wrote:
Quote:
On Jan 27, 8:36 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
It's a real photomultiplier: photocathode, shaped dynodes, anode, in a
vacuum. It gets about the usual string of dynode votages. It's just
tiny, and it's MEMS mass fabricated instead of hand assembled.
http://sales.hamamatsu.com/info/pwest/micro-pmt.php
John
Bill Sloman
Guest
Sat Jan 28, 2012 1:37 am
On Jan 27, 8:36 pm, John Larkin
<jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
Quote:
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
--
Bill Sloman, Nijmegen
Martin Riddle
Guest
Sat Jan 28, 2012 2:33 am
"John Larkin" <jjlarkin_at_highNOTlandTHIStechnologyPART.com> wrote in
message news:uuu5i79g43b21rssan114d3ea8rmrb84t7_at_4ax.com...
Quote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They haven't decided on pricing yet. I sure hope they are closer to
$50 than to $500.
John
Interesting, is the dynode shielded? Or is that left up to the
application.
I could not find any other info on their website.
Cheers
Bill Sloman
Guest
Sat Jan 28, 2012 3:08 am
On Jan 28, 1:09 am, John Larkin <jlar...@highlandtechnology.com>
wrote:
Quote:
On Fri, 27 Jan 2012 15:37:39 -0800 (PST), Bill Sloman
bill.slo...@ieee.org> wrote:
On Jan 27, 8:36 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
It's a real photomultiplier: photocathode, shaped dynodes, anode, in a
vacuum. It gets about the usual string of dynode votages. It's just
tiny, and it's MEMS mass fabricated instead of hand assembled.
http://sales.hamamatsu.com/info/pwest/micro-pmt.php
Good googling. I went looking for something like that and couldn't
find anything with more content than your original link.
Do you know what sort of inter-dynode voltages it needs?
The old RCA 8850 had a gallium phosphide first dynode with a very high
multiplication factor - of the order of several hundred secondary
electrons per photo-electron - albeit with a nasty tendency to get
poisoned if the anode current went over 100nA for any length of time.
http://www.hofstragroup.com/product/burle-rca-8850-quantacon-high-gain-photomultiplier-tube/
Hamamatsu apparently came up with the me-too type R1322, but I suppose
it would be too much to hope that they might have put a GaP surface on
the first dynodes of the etched part.
--
Bill Sloman, Nijmegen
George Herold
Guest
Sat Jan 28, 2012 3:26 am
On Jan 27, 7:09 pm, John Larkin <jlar...@highlandtechnology.com>
wrote:
Quote:
On Fri, 27 Jan 2012 15:37:39 -0800 (PST), Bill Sloman
bill.slo...@ieee.org> wrote:
On Jan 27, 8:36 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
It's a real photomultiplier: photocathode, shaped dynodes, anode, in a
vacuum. It gets about the usual string of dynode votages. It's just
tiny, and it's MEMS mass fabricated instead of hand assembled.
http://sales.hamamatsu.com/info/pwest/micro-pmt.php
John- Hide quoted text -
- Show quoted text -
Sounds interesting, did you see any data, specs?
Wonder if they'll make a better CW-HV source to power it.
George H.
John Larkin
Guest
Sat Jan 28, 2012 3:27 am
On Fri, 27 Jan 2012 17:08:17 -0800 (PST), Bill Sloman
<bill.sloman_at_ieee.org> wrote:
Quote:
On Jan 28, 1:09 am, John Larkin <jlar...@highlandtechnology.com
wrote:
On Fri, 27 Jan 2012 15:37:39 -0800 (PST), Bill Sloman
bill.slo...@ieee.org> wrote:
On Jan 27, 8:36 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
It's a real photomultiplier: photocathode, shaped dynodes, anode, in a
vacuum. It gets about the usual string of dynode votages. It's just
tiny, and it's MEMS mass fabricated instead of hand assembled.
http://sales.hamamatsu.com/info/pwest/micro-pmt.php
Good googling. I went looking for something like that and couldn't
find anything with more content than your original link.
Do you know what sort of inter-dynode voltages it needs?
I don't have any specs, but the guy at the show said it was about like
other PMTs, roughly 1 KV from end to end.
John
John Larkin
Guest
Sat Jan 28, 2012 3:29 am
On Fri, 27 Jan 2012 17:26:42 -0800 (PST), George Herold
<gherold_at_teachspin.com> wrote:
Quote:
On Jan 27, 7:09 pm, John Larkin <jlar...@highlandtechnology.com
wrote:
On Fri, 27 Jan 2012 15:37:39 -0800 (PST), Bill Sloman
bill.slo...@ieee.org> wrote:
On Jan 27, 8:36 pm, John Larkin
jjlar...@highNOTlandTHIStechnologyPART.com> wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They don't say how they work. The obvious model is the micro-channel
plate photo-multiplier
http://en.wikipedia.org/wiki/Microchannel_plate_detector
but they could also allow accelerated free electrons to hit the
surface of a reverse-biased diode and rely on avalanche multiplication
in the reversed-biased diode for most of the multiplication, not
unlike a SPAD, but separating a real photocathode from the multiplying
diode seems to allow higher multiplication factors. Hamamatsu already
have a product that works this way.
http://sales.hamamatsu.com/assets/pdf/parts_H/H8236-07.pdf
but I doubt that they'd put 8kV across the surface of a single chunk
of silicon
It's a real photomultiplier: photocathode, shaped dynodes, anode, in a
vacuum. It gets about the usual string of dynode votages. It's just
tiny, and it's MEMS mass fabricated instead of hand assembled.
http://sales.hamamatsu.com/info/pwest/micro-pmt.php
John- Hide quoted text -
- Show quoted text -
Sounds interesting, did you see any data, specs?
Wonder if they'll make a better CW-HV source to power it.
George H.
They scanned my badge and said they would send me more info. I tried
to pinch one, but they wouldn't let me. Heck, the show was almost
over.
Yeah, the HV supply will be a lot bigger than the PMT.
John
miso
Guest
Sat Jan 28, 2012 6:47 am
On 1/27/2012 11:36 AM, John Larkin wrote:
Quote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They haven't decided on pricing yet. I sure hope they are closer to
$50 than to $500.
John
I get invites to that show. What's it like?
John Larkin
Guest
Sat Jan 28, 2012 7:05 am
On Fri, 27 Jan 2012 21:47:51 -0800, miso <miso_at_sushi.com> wrote:
Quote:
On 1/27/2012 11:36 AM, John Larkin wrote:
We just saw these at the Photonics West show:
http://www.hamamatsu.com/news/2010/2010_09_28.html
These are stunning. They are batch/wafer fabricated and PCB surface
mountable, about as big as an SO16 IC.
They haven't decided on pricing yet. I sure hope they are closer to
$50 than to $500.
John
I get invites to that show. What's it like?
Lots of laser companies, microscopy, people like Newport, Thorlabs,
Edmund, FLIR, Trumf, Spectra-Physics and such, and a lot of smaller
suppliers that have parts, filters, lenses, cameras, electronics,
services. Lots of cool lasers, lenses, gadgets. You can probably still
check the exhibitor list. It was huge, both sides of Moscone filled
with exhibits, and very busy. Six or seven of my customers were
exhibiting, so we got to schmooze.
I bought a neat Dino-lite USB microscope while I was there. The show
was about to close so I got a deal on a measurement scope and stand.
The guy who invented it was there, too.
I didn't attend any of the sessions, just the exhibits. Interesting
stuff.
John
**********************************
John Larkin, President
Highland Technology, Inc
jlarkin at highlandtechnology dot com
http://www.highlandtechnology.com
Precision electronic instrumentation
Picosecond-resolution Digital Delay and Pulse generators
Custom laser controllers
Photonics and fiberoptic TTL data links
VME thermocouple, LVDT, synchro acquisition and simulation
