Faxitron
TODO 2020-01-05: have significant info to add
Faxitron Bioptics
Model | Family | Option | x-ray
Spot size (um) |
x-ray
kVp |
x-ray
mA |
Panel
size |
Panel
resolution (lp/mm) |
Panel
interface |
Mass (kg) | Note |
---|---|---|---|---|---|---|---|---|---|---|
43855A
43855B 43856A |
50 - 500 | 10-130 | 0.3-3 | 200-726 | 64/125/91 cm max focal distance
Be x-ray window
Standard: 10 - 110 kVp, 3 mA, 0.5 mm spot A04: 10 - 130 kVp, 3 mA, 0.5 mm spot M55: 10 - 55 kVp, 0.3 mA, 0.05 mm spot M110: 10 - 110 kVp, 0.3 mA, 0.07 mm spot
21 x 26 39 x 45 30 x 36 | |||||
DX-50 | DX-50 | 50 | 10-35 | 0.1 | 5x5 cm
5x10 cm |
10 | USB? | 32? | ||
MX-20 | DX-50 | 20 | 10-35 | 0.3 | 5x5 cm
12x12 cm |
normal: 50
contact: 10 |
unit: 68.2
w/ cart: 163.7 |
|||
LX-60 | DX-50 | 20 max
(10-12 typ) |
10-60 | 0.3 | 12x12 cm | 10 | 150 | |||
VersaVision | 21 | |||||||||
MultiRad |
See also: Hamamatsu panel
Python code: https://github.com/JohnDMcMaster/faxitron
Alternate DCAM python bindings: https://github.com/lumasullo/Tempesta/tree/master/hamamatsu
Misc info from:
- http://www.rtftechnologies.org/physics/faxitron-DX50-CT-scan.html
- http://www.rtftechnologies.org/physics/faxitron-DX50-teardown.html
Faxitron X-Ray DX-50 Digital Biopsy System with Option DC-4 Specimen Radiography
The Faxitron MX-20 Digital Specimen Radiography System is substantially
equivalent to the following to the following predicate devices:
Faxitron Micro 50 Specimen Radiography System-K852634
Faxitron DX-50 Digital Radiography System-K061361
MX-20 510(k) Submission
Page 9 of 30K079
piXarray Digital Specimen Radiography System-K052433
"The USB Hamamatsu 120mm x 120mm camera array cost £25K on top of the basic MX-20 cabinet cost of £25K. Scary prices." https://www.eevblog.com/forum/buysellwanted/(uk)-faxitron-mx-20-120mm-x-1200mm-complete-system-frasers-own-unit/msg2355963/#msg2355963
Contents
Cabinet X-ray Systems
https://epic.awi.de/id/eprint/44382/3/Faxitron-tech-manual.pdf
Models 43855A, 43855B and 43856A
Up to 110kVp depending on option
50-500 um spot size
"designed to give high resolution radiographs of small to medium-size objects of all types"
DX-50
http://www.rtftechnologies.org/physics/faxitron-DX50-CT-scan.html
- Very detailed and valuable info
- See for manuals and other info
Weight
- DX-50 sample shipping weight w/ box: 67 lb
- DX-50 w/ computer: about 81 lb
Circa 2008
https://www.youtube.com/watch?v=XGCvC7F24ws
- Hammimatsu flat panel detector
- Carbon fiber x-ray window to sensor
https://www.youtube.com/watch?v=2-vQt9GNaIk
Manual option info
- DC2: Dalsa, CCD type. 50 x 50 mm (2" x 2") field of view.
- DC4: Dalsa, CCD type. 50 x 100 mm (2" x 4") field of view.
- DC22: Bioptics, CMOS type. 50 x 50 mm (2" x 2") field of view.
- DC24: Bioptics, CMOS type. 50 x 100 mm (2" x 4") field of view.
- DC44: Bioptics, CMOS type. 100 x 100 mm (4" x 4") field of view.
- DC3: Hamamatsu, CCD type. 24 x 34 mm (0.94" x 1.3") field of view.
- DC5: Hamamatsu C9730DK-11, CMOS type. 50 x 50 mm (2" x 2") field of view.
- DC10: Hamamatsu, CMOS type. 100 x 100 mm (4" x 4") field of view.
- DC12: Hamamatsu C9732DK, CMOS type. 120 x 120 mm (4.7" x 4.7") field of view.
"Dip switch s1 front control panel set switch position 2 to on and it will start the tube for 30 sec at a time without comp"
https://twitter.com/szeloof/status/1233657575503208458?s=20
Power supply
The original power supply is roughly:
- 12V in?
- Dual channel
- Power-one DGP12U5D5, WTT250IG
- Outputs +/- 5V
- Is the -5V rail used?
- Seem to output 5.3 or 5.4V
- LM317
- So basically: 12V DC is converted to just above 5V. Then a linear regulator smooths the last remaining bit down to 5V
Weidmüller-4 | Wire color | Volt | Note |
---|---|---|---|
1 | Blue | 5.11 | Ground? |
2 | Green | 0 | -5V? |
3 | Black | 0 | -5V? |
4 | Orange | 10.85 | +5V? |
DB9 | Wire | Weidmüller-8 | Volt |
---|---|---|---|
1 | Yellow | 2 | 0V |
2 | Blue | 2 | 0V |
3 | Gray | 4 | 0V |
4 | Black | 4 | 0V |
5 | Red | N/C | |
6 | Green | 1 | 5.15V |
7 | Violet | 1 | 5.15V |
8 | White | 3 | 5.05V |
9 | Brown | 3 | 5.05V |
N/C | 5 | ||
N/C | 6 | ||
N/C | 7 | ||
N/C | 8 |
Weidmüller BL series 3.5 mm connectors. Suggested connectors:
- Black female inline, BL series
- 4: 1615690000, BL 3.5/4 SN SW
- 4 backorder alt: 1638800000
- 8: 1615700000, BL 3.5/8 SN SW
- Black male board mount (no inline...)
- 4: 1616030000
- 8: 1614250000
MX-20
Cabinet x-ray
Camera
- DC-12: 12 cm x 12 cm
- DC-5: 5 cm x 5 cm, less expensive
10 lp/mm spatial resolution in contact mode. Magnification allows for spatial resolution of up to 50 lp/mm. The 20 μm nominal focal spot and up to 5X additional geometric magnification
Specs
- Window: 0.01” beryllium
- Resolution: Up to 50 lp/mm (10 lp/mm contact mode)
- 10-35 kVp @ 300 μA
- <20 μm spot size
- Image acquisition time: 15 sec
https://www.eevblog.com/forum/reviews/faxitron-mx-20-x-ray-system-teardown/
https://www.eevblog.com/forum/reviews/faxitron-mx-20-reverse-engineering-(with-some-good-results)/
https://www.youtube.com/watch?v=mYrjOIiJv88
VersaVision
Circa 2017?
Perkin-elmer_xrd-1640_an19-ets-lp
"The MX-20 had an Perkin Elmer panel sensor with parallel output to an SCSI PC interface board. It can do medium sized boards, up to 10" x 12"...The P-E sensor that came with my MX-20 was not it's original sensor. My MX-20 was non-digital, just a film based one (or phosphor plate based). The P-E had a low voltage differential, parallel, output that was sent through a cable to a PCI frame capture board. The board (made by Perkin Elmer) looked like a SCSI interface to the PC. The sensors are available on eBay, sometimes for a good price, but I've not seen a complete system, sensor, power supply, cables, interface card, and software, in a long time. A sensor is on eBay now, see"
tvrsales2 https://www.ebay.com/itm/PERKIN-ELMER-DIGITAL-X-RAY-DETECTOR-SYSTEM-XRD-1640/233202476578
PERKIN ELMER DIGITAL X-RAY DETECTOR SYSTEM XRD-1640
McMaster
2020-02-24
tube in unit tfx-8050 http://www.trufocus.com/xray_datasheets/microfocus/8000-SWS-Side%20Window/8050%20SWS/MFX-8050-SWS-V01.pdf 50 kV max
power supply gamma high voltage XR15-35P/M530A
https://www.ebay.com/itm/Gamma-High-Voltage-Research-rr125-2-5p-ttl-10v-m336-power-supply-w-tcm-1500/362920316155?hash=item547fbc8cfb:g:c9wAAOSwwD1eTcZE hmm thats interesting
mcmaster@necropolis:~/doc/ext/gnome-tweaks/gtweak$ meson builddir The Meson build system Version: 0.45.1 Source dir: /home/mcmaster/doc/ext/gnome-tweaks/gtweak Build dir: /home/mcmaster/doc/ext/gnome-tweaks/gtweak/builddir Build type: native build ERROR: First statement must be a call to project A full log can be found at /home/mcmaster/doc/ext/gnome-tweaks/gtweak/builddir/meson-logs/meson-log.txt
faxitron summary -Missing key Fix: jimmy lock -Door switch broken Fix: tape screw to door -X-ray not working? left light usually doens't go on, although right light always goes on geiger counter not detecting radiation
four0four:b8647895d5133f20d6b33c4a7b25d061
8:53 during operation I'm going like -2 mV set to 35 kV, I should be getting like 35V 70 mV => low current as well?
if you hold start it has a count down timer probably for warm up
with fuses removed right light comes on but left light no longer does
fuses okay
LPQ252 main supply is it okay?
LPQ252-C - AC/DC Enclosed Power Supply (PSU), 4 Outputs, 250 W, 5 V, 35 A, 12 V, 10 A big terminals 5V
can I get the tube or power supply out of the dx-50?
9:26 compare dx-50 power board: all three LEDs come on during fire idle just one near the input power connector
10:24 flip top switch time display changes from 010 to 0 in real time even if its on already also can't hit start any more remote still does nothing bottom switch no visible effect default is rocked closer to the big IC near it
in special mode pressing 9: L3 on kV can up/down number can go negative only responds to up, down, and enter
11:00 DX-50 50 mV across hv ps variable resistor
white wire is required gah need to re-test on mx-20
black power supply HV in exceeded multimeter vmax doesn't seem to have damaged it though? doesn't kick in unless run command executed
10V across divider + is reversed vs the HV connections ie brown at top is 0V 10 kV 2.819V 20 kV 5.68V 30 kV 8.55V 35 kV 9.88V
check VM (orange) 10 kV 0.992V 20 kV 2.001V 35 kV 3.478V
power supply board behind it measured while beam off referenced to black box black wire 3x blue left fuse, 2x 5.07V 3x orange middle fuse 11.97V 1x brown right fuse -11.97V
big power supply referenced to black box black ground V1 5.10V COM V4 22.55V RETURN -3mV V3 -11.97V COM -0.7mV COM -0.4mV V2 11.98V small red 15.08V big 0 red 4.97V
MX-20 referenced to black box black ground V1 5.03V COM V4 24.55V TODO: verify other. Double checked this RETURN V3 -12.01V COM COM V2 11.89V small red 14.88V big red 4.92V
5, 12, -12V okay Vm 0 under HV Vref is 10V when set to 35kV, 2.834V when 10kV
next: can I check control signals into HV board? powered off and unplugged note this killed the fans brown -11.99 V white 0.6 mV green 0.5 mV orange 11.91 V black -300 mV (space) red 0 V think this is a return line this basically just goes to the big power section
if I had better probe access to that board might make debugging easier
Teledyne dalsa CD26M112 X1
Dalsa Teledyne Xineos CMOS Xray Detector 130mm X 130mm CD26M112 X1
Misc
Jul 31, 2018 Hologic acquired Faxitron Bioptics for $85,000,000
Tweets
- Trying to recover CD data: https://twitter.com/johndmcmaster/status/1214059627576360960?s=20
- On ham power supply: https://twitter.com/johndmcmaster/status/1214058462591631360?s=20
- DC5 vs DC12 cover off: https://twitter.com/johndmcmaster/status/1214056617336926208?s=20
- DC internals: https://twitter.com/johndmcmaster/status/1214055732741435392?s=20